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<languages/>
<languages/>
{{docnav/ja|[[Embedding FreeCAD/ja|Embedding FreeCAD]]|[[Line drawing function/ja|Line drawing function]]}}


{{TOCright}}
{{TutorialInfo/ja
|Topic= Python
|Level= Beginner
|Time=
|Author=
|FCVersion=
|Files=
}}


==Introduction==

<div class="mw-translate-fuzzy">
このページにはフォーラムでユーザーが作成したり議論した中から集めたFreeCAD用Pythonコードのサンプル、コード片、コードの一部を集めて載せています。あなたのスクリプトの参考にしてください・・・
このページにはフォーラムでユーザーが作成したり議論した中から集めたFreeCAD用Pythonコードのサンプル、コード片、コードの一部を集めて載せています。あなたのスクリプトの参考にしてください・・・
</div>


==Snippets==

<span id="A_typical_InitGui.py_file"></span>
<div class="mw-translate-fuzzy">
=== 典型的なInitGui.pyファイル===
=== 典型的なInitGui.pyファイル===


全てのモジュールにはメインモジュールファイルに加えてメインGUIにモジュールを挿入するためのInitGui.pyファイルが含まれていなければなりません。これはその単純な例です。
全てのモジュールにはメインモジュールファイルに加えてメインGUIにモジュールを挿入するためのInitGui.pyファイルが含まれていなければなりません。これはその単純な例です。
</div>

Every module must contain, besides your main module file, an InitGui.py file, responsible for inserting the module in the main Gui. This is an example of a simple one.

{{Code|code=
{{Code|code=
class ScriptWorkbench (Workbench):
class ScriptWorkbench (Workbench):
Line 26: Line 30:
Gui.addWorkbench(ScriptWorkbench())
Gui.addWorkbench(ScriptWorkbench())
}}
}}
{{Top}}

<span id="A_typical_module_file"></span>
<div class="mw-translate-fuzzy">
=== 典型的なモジュールファイル ===
=== 典型的なモジュールファイル ===
モジュールが行う処理の全てが記載されているメインモジュールファイルの例です。前の例で呼び出されるScripts.pyファイルです。自作のコマンドの全てをここに記載します。
モジュールが行う処理の全てが記載されているメインモジュールファイルの例です。前の例で呼び出されるScripts.pyファイルです。自作のコマンドの全てをここに記載します。
</div>

This is an example of a main module file, containing everything your module does. It is the Scripts.py file invoked by the previous example. You can have all your custom commands here.

{{Code|code=
{{Code|code=
import FreeCAD, FreeCADGui
import FreeCAD, FreeCADGui
Line 41: Line 51:
FreeCADGui.addCommand('Script_Cmd', ScriptCmd())
FreeCADGui.addCommand('Script_Cmd', ScriptCmd())
}}
}}
{{Top}}

<span id="Import_a_new_filetype"></span>
<div class="mw-translate-fuzzy">
=== 新しいファイルタイプをインポート ===
=== 新しいファイルタイプをインポート ===


FreeCADでは簡単に新しいファイルタイプ用のインポート処理を作成することができます。FreeCADはデータを開かれているドキュメントからインポートするか、たんに直接新しいファイルタイプを開くかを区別しません。やらなければならないのは新しいファイル拡張子を FreeCADのリストに追加し、そのファイルを読み込んで欲しいFreeCADオブジェクトを作成するコードを書くことだけです:
FreeCADでは簡単に新しいファイルタイプ用のインポート処理を作成することができます。FreeCADはデータを開かれているドキュメントからインポートするか、たんに直接新しいファイルタイプを開くかを区別しません。やらなければならないのは新しいファイル拡張子を FreeCADのリストに追加し、そのファイルを読み込んで欲しいFreeCADオブジェクトを作成するコードを書くことだけです:
</div>

Making an importer for a new filetype in FreeCAD is easy. FreeCAD doesn't consider that you import data in an opened document, but rather that you simply can directly open the new filetype. So what you need to do is to add the new file extension to FreeCAD's list of known extensions, and write the code that will read the file and create the FreeCAD objects you want:


リストに新しいファイル拡張子を追加するためには以下の行をInitGui.pyに追加しなければなりません:
リストに新しいファイル拡張子を追加するためには以下の行をInitGui.pyに追加しなければなりません:

{{Code|code=
{{Code|code=
# Assumes Import_Ext.py is the file that has the code for opening and reading .ext files
# Assumes Import_Ext.py is the file that has the code for opening and reading .ext files
FreeCAD.addImportType("Your new File Type (*.ext)","Import_Ext")
FreeCAD.addImportType("Your new File Type (*.ext)","Import_Ext")
}}
}}

# .extファイルを開いて読み込むためのコードがあるファイルをImport_Ext.pyとします
# .extファイルを開いて読み込むためのコードがあるファイルをImport_Ext.pyとします
FreeCAD.addImportType("Your new File Type (*.ext)","Import_Ext")
FreeCAD.addImportType("Your new File Type (*.ext)","Import_Ext")


Import_Ext.pyファイルには以下のように書きます:
Import_Ext.pyファイルには以下のように書きます:

{{Code|code=
{{Code|code=
def open(filename):
def open(filename):
Line 61: Line 79:
doc.recompute()
doc.recompute()
}}
}}
新しいファイルタイプへのドキュメントのエクスポートも以下の行を使用する以外は同様にして行います:
FreeCAD.addExportType("Your new File Type (*.ext)","Export_Ext")


新しいファイルタイプへのドキュメントのエクスポートも以下の行を使用する以外は同様にして行います:
FreeCAD.addExportType("Your new File Type (*.ext)","Export_Ext")
{{Top}}
<span id="Add_a_line"></span>
<div class="mw-translate-fuzzy">
=== ラインの追加 ===
=== ラインの追加 ===


Line 76: Line 97:
doc.addObject("Part::Feature","Line").Shape=l.toShape()
doc.addObject("Part::Feature","Line").Shape=l.toShape()
doc.recompute()
doc.recompute()
</div>

A line simply has 2 points.

{{Code|code=
{{Code|code=


Line 87: Line 112:
doc.recompute()
doc.recompute()
}}
}}
{{Top}}

<span id="Add_a_polygon"></span>
<div class="mw-translate-fuzzy">
=== ポリゴンの追加 ===
=== ポリゴンの追加 ===
ポリゴンはつながった線分の集合(AutoCADでいうポリライン)です。線分の集合が閉じている必要はありません。
ポリゴンはつながった線分の集合(AutoCADでいうポリライン)です。線分の集合が閉じている必要はありません。
</div>

A polygon is simply a set of connected line segments (a polyline in AutoCAD). It doesn't need to be closed.

{{Code|code=
{{Code|code=
import Part,PartGui
import Part, PartGui
doc=App.activeDocument()
doc = App.activeDocument()
n=list()
n = list()

# create a 3D vector, set its coordinates and add it to the list
# create a 3D vector, set its coordinates and add it to the list
v=App.Vector(0,0,0)
v = App.Vector(0,0,0)
n.append(v)
n.append(v)
v=App.Vector(10,0,0)
v = App.Vector(10,0,0)
n.append(v)
n.append(v)
#... repeat for all nodes
#... repeat for all nodes

# Create a polygon object and set its nodes
# Create a polygon object and set its nodes
p=doc.addObject("Part::Polygon","Polygon")
p = doc.addObject("Part::Polygon","Polygon")
p.Nodes=n
p.Nodes = n
doc.recompute()
doc.recompute()
}}
}}
{{Top}}

<span id="Add_and_remove_an_object_to/from_a_group"></span>
<div class="mw-translate-fuzzy">
=== グループに対するオブジェクトの追加と削除 ===
=== グループに対するオブジェクトの追加と削除 ===
</div>

{{Code|code=
{{Code|code=
doc=App.activeDocument()
doc=App.activeDocument()
Line 114: Line 151:
grp.removeObject(lin) # removes the lin object from the group grp
grp.removeObject(lin) # removes the lin object from the group grp
}}
}}
注意: グループにグループを追加することも可能です・・・


注意: グループにグループを追加することも可能です・・・
{{Top}}
<span id="Add_a_Mesh"></span>
<div class="mw-translate-fuzzy">
=== メッシュの追加 ===
=== メッシュの追加 ===
</div>

{{Code|code=
{{Code|code=
import Mesh
import Mesh
Line 141: Line 183:
me.Mesh=m
me.Mesh=m
}}
}}
{{Top}}

<span id="Add_an_arc_or_a_circle"></span>
<div class="mw-translate-fuzzy">
=== 円弧または円の追加 ===
=== 円弧または円の追加 ===
</div>

{{Code|code=
{{Code|code=
import Part
import Part
Line 152: Line 198:
doc.recompute()
doc.recompute()
}}
}}
{{Top}}

<span id="Access_and_change_the_representation_of_an_object"></span>
<div class="mw-translate-fuzzy">
=== オブジェクト表現へのアクセスと変更 ===
=== オブジェクト表現へのアクセスと変更 ===


FreeCADドキュメント内の各オブジェクトは関連付けられたビュー表現オブジェクトを持ち、そのビュー表現オブジェクトはそのオブジェクトがどのように表示されるかを定義する色、ライン幅などの全てのプロパティを保持しています。
FreeCADドキュメント内の各オブジェクトは関連付けられたビュー表現オブジェクトを持ち、そのビュー表現オブジェクトはそのオブジェクトがどのように表示されるかを定義する色、ライン幅などの全てのプロパティを保持しています。
</div>

Each object in a FreeCAD document has an associated view representation object that stores all the parameters that define how that object appears: i.e. color, linewidth, etc... See also [[#List the components of an object|List the components of an object]] snippet below

{{Code|code=
{{Code|code=
gad=Gui.activeDocument() # access the active document containing all
gad = Gui.activeDocument() # access the active document containing all
# view representations of the features in the
# view representations of the features in the
# corresponding App document
# corresponding App document


v=gad.getObject("Cube") # access the view representation to the Mesh feature 'Cube'
v = gad.getObject("Cube") # access the view representation to the Mesh feature 'Cube'
v.ShapeColor # prints the color to the console
v.ShapeColor # prints the color to the console
v.ShapeColor=(1.0,1.0,1.0) # sets the shape color to white
v.ShapeColor=(1.0,1.0,1.0) # sets the shape color to white
}}
}}
{{Top}}
===Replace the form of mouse with one image===


{{Code|code=
import PySide2
from PySide2 import QtCore, QtGui, QtWidgets
from PySide2.QtWidgets import QApplication
from PySide2.QtGui import QColor, QPixmap, QImage, QPainter, QCursor
from PySide2.QtCore import Qt

myImage = QtGui.QPixmap("Complete_Path_to_image.bmp")
cursor = QtGui.QCursor(myImage)
QtWidgets.QApplication.setOverrideCursor(QtGui.QCursor(cursor))

}}
{{Top}}
===Replace the form of mouse with one image (cross) include===

The image is created by Gimp exported in a .XPM file. Copy and use the code between the bracket '''"{"''' code to copy '''"}"'''

{{Code|code=
import PySide2
from PySide2 import QtCore, QtGui, QtWidgets
from PySide2.QtWidgets import QApplication
from PySide2.QtGui import QColor, QPixmap, QImage, QPainter, QCursor
from PySide2.QtCore import Qt

cross32x32Icon = [
"32 32 2 1",
" c None",
". c #FF0000",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" ",
"............... . ..............",
" ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . "
]

myImage = QtGui.QPixmap(cross32x32Icon)
cursor = QtGui.QCursor(myImage)
QtWidgets.QApplication.setOverrideCursor(QtGui.QCursor(cursor))

}}
{{Top}}
===Observe camera change in the 3D viewer via Python===

This can be done adding a [https://www.coin3d.org/Coin/html/classSoNodeSensor.html Node sensor] to the camera:

{{Code|code=
from pivy import coin
def callback(*args):
cam, sensor = args
print()
print("Cam position : {}".format(cam.position.getValue().getValue()))
print("Cam rotation : {}".format(cam.orientation.getValue().getValue()))

camera_node = Gui.ActiveDocument.ActiveView.getCameraNode()
node_sensor = coin.SoNodeSensor(callback, camera_node)
node_sensor.attach(camera_node)}}
{{Top}}
<span id="Observe_mouse_events_in_the_3D_viewer_via_Python"></span>
<div class="mw-translate-fuzzy">
=== Pythonから3Dビューアーのマウスイベントを監視 ===
=== Pythonから3Dビューアーのマウスイベントを監視 ===
Inventorフレームワークでは 複数のコールバック用ノードをビューアーへのシーングラフへ追加することができます。デフォルトではFreeCADはビューアーごとに一つのコールバック用ノードがインストールされており、それを使うとグローバルまたはスタティックなC++関数を追加することができます。適切なPythonバインディングではこのテクニックをPythonコードから利用するためのメソッドが提供されています。
Inventorフレームワークでは 複数のコールバック用ノードをビューアーへのシーングラフへ追加することができます。デフォルトではFreeCADはビューアーごとに一つのコールバック用ノードがインストールされており、それを使うとグローバルまたはスタティックなC++関数を追加することができます。適切なPythonバインディングではこのテクニックをPythonコードから利用するためのメソッドが提供されています。
</div>

The Inventor framework allows to add one or more callback nodes to the scenegraph of the viewer. By default in FreeCAD one callback node is installed per viewer which allows to add global or static C++ functions. In the appropriate Python binding some methods are provided to make use of this technique from within Python code.

{{Code|code=
{{Code|code=
App.newDocument()
App.newDocument()
Line 184: Line 328:
c = v.addEventCallback("SoMouseButtonEvent",o.logPosition)
c = v.addEventCallback("SoMouseButtonEvent",o.logPosition)
}}
}}


このクラスは全てのマウスボタンイベントを記録します。登録されたコールバック関数は'down'イベントと'up'イベントで
このクラスは全てのマウスボタンイベントを記録します。登録されたコールバック関数は'down'イベントと'up'イベントで
# 二回、ファイヤーします。これをハンドリングするためのブール値フラグが必要です。
# 二回、ファイヤーします。これをハンドリングするためのブール値フラグが必要です。
Line 189: Line 335:


さあ、3Dビューアーの領域のどこかをピックして出力ウィンドウにメッセージが表示されるのを見てください。監視を終了するには次のようにします。
さあ、3Dビューアーの領域のどこかをピックして出力ウィンドウにメッセージが表示されるのを見てください。監視を終了するには次のようにします。

{{Code|code=
{{Code|code=
v.removeEventCallback("SoMouseButtonEvent",c)
v.removeEventCallback("SoMouseButtonEvent",c)
}}
}}

次のイベント型がサポートされています。
次のイベント型がサポートされています。
* SoEvent -- 全ての種類のイベント
* SoEvent -- 全ての種類のイベント
Line 226: Line 374:
* Translation -- 三つの浮動小数点数のタプル
* Translation -- 三つの浮動小数点数のタプル
* Rotation -- 回転のクォータニオン、つまり四つの浮動小数点数のタプル
* Rotation -- 回転のクォータニオン、つまり四つの浮動小数点数のタプル
{{Top}}

===Display keys pressed and Events command===
===Display keys pressed and Events command===

This macro displays in the report view the keys pressed and all events command
This macro displays in the report view the keys pressed and all events command

{{Code|code=
{{Code|code=
App.newDocument()
App.newDocument()
Line 247: Line 397:
#v.removeEventCallback("SoEvent",c) # remove ViewObserver
#v.removeEventCallback("SoEvent",c) # remove ViewObserver
}}
}}
{{Top}}
<span id="Manipulate_the_scenegraph_in_Python"></span>
<div class="mw-translate-fuzzy">
=== Pythonでのシーングラフ操作 ===
=== Pythonでのシーングラフ操作 ===
Coin用のPythonバインディングである'pivy'モジュールを使ってPythonでシーングラフを取得して変更することも可能です。
Coin用のPythonバインディングである'pivy'モジュールを使ってPythonでシーングラフを取得して変更することも可能です。
</div>

It is also possible to get and change the scenegraph in Python, with the 'pivy' module -- a Python binding for Coin.

{{Code|code=
{{Code|code=
from pivy.coin import * # load the pivy module
from pivy.coin import * # load the pivy module
Line 256: Line 413:
view.fitAll()
view.fitAll()
}}
}}

pivyのPythonAPIはSWIGというツールを使って作られています。FreeCADで使用する場合、自作ノードをPythonで直接作成することはできません。
pivyのPythonAPIはSWIGというツールを使って作られています。FreeCADで使用する場合、自作ノードをPythonで直接作成することはできません。
ただし、内部的な名称を使ってノードを作成することはできます。'SoFCSelection'型のインスタンスは次のようにして作成することが可能です:
ただし、内部的な名称を使ってノードを作成することはできます。'SoFCSelection'型のインスタンスは次のようにして作成することが可能です:

{{Code|code=
{{Code|code=
type = SoType.fromName("SoFCSelection")
type = SoType.fromName("SoFCSelection")
node = type.createInstance()
node = type.createInstance()
}}
}}
{{Top}}

<span id="Add_and_remove_objects_to/from_the_scenegraph"></span>
<div class="mw-translate-fuzzy">
=== シーングラフに対するオブジェクトの追加と削除 ===
=== シーングラフに対するオブジェクトの追加と削除 ===


シーングラフへの新しいノードの追加は以下のようにして行うことができます。オブジェクトのジオメトリー、座標、マテリアルの情報の追加のためには常にSoSeparatorの追加が必要なことに注意してください。次の例では (0,0,0)から(10,0,0):に引かれた赤いラインを追加しています。
シーングラフへの新しいノードの追加は以下のようにして行うことができます。オブジェクトのジオメトリー、座標、マテリアルの情報の追加のためには常にSoSeparatorの追加が必要なことに注意してください。次の例では (0,0,0)から(10,0,0):に引かれた赤いラインを追加しています。
</div>

Adding new nodes to the scenegraph can be done this way. Take care of always adding a SoSeparator to contain the geometry, coordinates and material info of a same object. The following example adds a red line from (0,0,0) to (10,0,0):

{{Code|code=
{{Code|code=
from pivy import coin
from pivy import coin
Line 282: Line 447:
sg.addChild(no)
sg.addChild(no)
}}
}}

削除は次の様にします:
削除は次の様にします:
{{Code|code=
{{Code|code=
sg.removeChild(no)
sg.removeChild(no)
}}
}}
{{Top}}<div class="mw-collapsible mw-collapsed toccolours">
===Saves the sceneGraph with a rotation in a series of 36 files in the X Y Z axis===
===Save the sceneGraph in 3 series of 36 files===


View the code snippet by expanding this section
<div class="mw-collapsible-content">
{{Code|code=
{{Code|code=
import math
import math
Line 362: Line 531:
view.saveImage(dirname+"z-%d.png" % i,*size)
view.saveImage(dirname+"z-%d.png" % i,*size)
}}
}}
</div> <!--END collapsible section. Do not remove! -->

</div> <!--END collapsible section. Do not remove! -->
{{Top}}
<span id="Add_custom_widgets_to_the_interface"></span>
<div class="mw-translate-fuzzy">
=== コンボビューへのタブの追加 ===
=== コンボビューへのタブの追加 ===


次のコードを使うとFreeCADのコンボビューの"Project"タブ、"Tasks"タブの隣にタブを追加することができます。またuiファイルを直接そのタブに読み込むためにuicモジュールを使用しています。
次のコードを使うとFreeCADのコンボビューの"Project"タブ、"Tasks"タブの隣にタブを追加することができます。またuiファイルを直接そのタブに読み込むためにuicモジュールを使用しています。
</div>

You can create custom widgets with Qt designer, transform them into a python script, and then load them into the FreeCAD interface with PySide.


The python code produced by the Ui python compiler (the tool that converts qt-designer .ui files into python code) generally looks like this (it is simple, you can also code it directly in python):
The python code produced by the Ui python compiler (the tool that converts qt-designer .ui files into python code) generally looks like this (it is simple, you can also code it directly in python):

{{Code|code=
{{Code|code=
class myWidget_Ui(object):
class myWidget_Ui(object):
def setupUi(self, myWidget):
def setupUi(self, myWidget):
myWidget.setObjectName("my Nice New Widget")
myWidget.setObjectName("my Nice New Widget")
myWidget.resize(QtCore.QSize(QtCore.QRect(0,0,300,100).size()).expandedTo(myWidget.minimumSizeHint())) # sets size of the widget
myWidget.resize(QtCore.QSize(QtCore.QRect(0,0,300,100).size()).expandedTo(myWidget.minimumSizeHint())) # sets size of the widget
self.label = QtGui.QLabel(myWidget) # creates a label
self.label = QtGui.QLabel(myWidget) # creates a label
self.label.setGeometry(QtCore.QRect(50,50,200,24)) # sets its size
self.label.setGeometry(QtCore.QRect(50,50,200,24)) # sets its size
self.label.setObjectName("label") # sets its name, so it can be found by name
self.label.setObjectName("label") # sets its name, so it can be found by name


def retranslateUi(self, draftToolbar): # built-in QT function that manages translations of widgets
def retranslateUi(self, draftToolbar): # built-in QT function that manages translations of widgets
myWidget.setWindowTitle(QtGui.QApplication.translate("myWidget", "My Widget", None, QtGui.QApplication.UnicodeUTF8))
myWidget.setWindowTitle(QtGui.QApplication.translate("myWidget", "My Widget", None, QtGui.QApplication.UnicodeUTF8))
self.label.setText(QtGui.QApplication.translate("myWidget", "Welcome to my new widget!", None, QtGui.QApplication.UnicodeUTF8))
self.label.setText(QtGui.QApplication.translate("myWidget", "Welcome to my new widget!", None, QtGui.QApplication.UnicodeUTF8))
}}
}}

Then, all you need to do is to create a reference to the FreeCAD Qt window, insert a custom widget into it, and "transform" this widget into yours with the Ui code we just made:
Then, all you need to do is to create a reference to the FreeCAD Qt window, insert a custom widget into it, and "transform" this widget into yours with the Ui code we just made:

{{Code|code=
{{Code|code=
app = QtGui.qApp
app = QtGui.qApp
Line 392: Line 571:
FCmw.addDockWidget(QtCore.Qt.RightDockWidgetArea,myNewFreeCADWidget) # add the widget to the main window
FCmw.addDockWidget(QtCore.Qt.RightDockWidgetArea,myNewFreeCADWidget) # add the widget to the main window
}}
}}
{{Top}}
===Add a Tab to the Combo View===

The following code allows you to add a tab to the [[Combo view]], separate from the preexisting "Model" and "Tasks" tabs. It also uses the {{incode|uic}} module to load an UI file directly in that tab.


===Adding a Tab to the Combo View===
The following code allows you to add a tab to the FreeCAD ComboView, besides the "Project" and "Tasks" tabs. It also uses the uic module to load an ui file directly in that tab.
{{Code|code=
{{Code|code=
# create new Tab in ComboView
# create new Tab in ComboView
Line 430: Line 611:


}}
}}
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===Enable or disable a window===
===Enable or disable a window===

This script give the ability to manipulate the UI from the [[Python console]] to show/hide different components in the FreeCAD [[interface]] such as:
* [[Report view]]
* [[Tree view]]
* [[Property editor|Property view]]
* [[Selection view]]
* [[Combo view]]
* [[Python console]]
* draftToolbar

{{Code|code=
{{Code|code=
from PySide import QtGui
from PySide import QtGui
mw=FreeCADGui.getMainWindow()
mw = FreeCADGui.getMainWindow()
dws=mw.findChildren(QtGui.QDockWidget)
dws = mw.findChildren(QtGui.QDockWidget)


# objectName may be :
# objectName may be :
Line 447: Line 639:
for i in dws:
for i in dws:
if i.objectName() == "Report view":
if i.objectName() == "Report view":
dw=i
dw = i
break
break


va=dw.toggleViewAction()
va = dw.toggleViewAction()
va.setChecked(True) # True or False
va.setChecked(True) # True or False
dw.setVisible(True) # True or False
dw.setVisible(True) # True or False
}}
}}
{{Top}}

<span id="Open_a_custom_webpage"></span>
<div class="mw-translate-fuzzy">
=== 自作ウェブページを開く ===
=== 自作ウェブページを開く ===
</div>

{{Code|code=
{{Code|code=
import WebGui
import WebGui
WebGui.openBrowser("http://www.example.com")
WebGui.openBrowser("http://www.example.com")
}}
}}
{{Top}}

<span id="Get_the_HTML_contents_of_an_opened_webpage"></span>
<div class="mw-translate-fuzzy">
=== 開いたウェブページのHTMLコンテンツを取得 ===
=== 開いたウェブページのHTMLコンテンツを取得 ===
</div>

{{Code|code=
{{Code|code=
from PySide import QtGui,QtWebKit
from PySide import QtGui,QtWebKit
Line 468: Line 668:
v = mw.findChild(QtWebKit.QWebFrame)
v = mw.findChild(QtWebKit.QWebFrame)
html = unicode(v.toHtml())
html = unicode(v.toHtml())
print html
print( html)
}}
}}
{{Top}}
===Retrieve the coordinates of 3 selected points or objects===


===Retrieve and use the coordinates of 3 selected points or objects===
{{Code|code=
{{Code|code=
# -*- coding: utf-8 -*-
# -*- coding: utf-8 -*-
Line 497: Line 698:
Console.PrintMessage(str(pt[1]) + "\r\n")
Console.PrintMessage(str(pt[1]) + "\r\n")
}}
}}
{{Top}}

===List all objects===
===List all objects===

{{Code|code=
{{Code|code=
# -*- coding: utf-8 -*-
# -*- coding: utf-8 -*-
Line 519: Line 721:
#doc.removeObject("Box") # Clears the designated object
#doc.removeObject("Box") # Clears the designated object
}}
}}
{{Top}}
===List the dimensions of an object, given its name===
===List the dimensions of an object, given its name===

{{Code|code=
{{Code|code=
for edge in FreeCAD.ActiveDocument.MyObjectName.Shape.Edges: # replace "MyObjectName" for list
for edge in FreeCAD.ActiveDocument.MyObjectName.Shape.Edges: # replace "MyObjectName" for list
print edge.Length
print( edge.Length)
}}
}}
{{Top}}


===Function resident with the mouse click action===
===Function resident with the mouse click action===

Here with '''SelObserver''' on a object select
Here with '''SelObserver''' on a object select

{{Code|code=
{{Code|code=
# -*- coding: utf-8 -*-
# -*- coding: utf-8 -*-
Line 545: Line 750:
App.Console.PrintMessage("______"+ "\n")
App.Console.PrintMessage("______"+ "\n")


def removeSelection(self,doc,obj,sub): # Delete the selected object
def removeSelection(self,doc,obj,sub): # Remove the selection
App.Console.PrintMessage("removeSelection"+ "\n")
App.Console.PrintMessage("removeSelection"+ "\n")


def setSelection(self,doc): # Selection in ComboView
def setSelection(self,doc): # Set selection
App.Console.PrintMessage("setSelection"+ "\n")
App.Console.PrintMessage("setSelection"+ "\n")


Line 559: Line 764:


Other example with '''ViewObserver''' on a object select or view
Other example with '''ViewObserver''' on a object select or view

{{Code|code=
{{Code|code=
App.newDocument()
App.newDocument()
Line 583: Line 789:


}}
}}
{{Top}}
===Finding-selecting all elements below cursor===
===Display the active document===

{{Code|code=
class DocObserver: # document Observer
def slotActivateDocument(self,doc):
print(doc.Name)

obs=DocObserver()
App.addDocumentObserver(obs)
#App.removeDocumentObserver(obs) # desinstalle la fonction residente
}}

To remove the observer call:

{{Code|code=App.removeDocumentObserver(obs) # desinstalle la fonction residente
}}
{{Top}}
===Find/select all elements below the cursor===

{{Code|code=
{{Code|code=
from pivy import coin
from pivy import coin
Line 621: Line 846:
#FreeCADGui.Selection.addSelection(FreeCAD.ActiveDocument.Box,'Face2',21.0,8.604081153869629,8.553047180175781)
#FreeCADGui.Selection.addSelection(FreeCAD.ActiveDocument.Box,'Face2',21.0,8.604081153869629,8.553047180175781)
}}
}}
{{Top}}<div class="mw-collapsible mw-collapsed toccolours">

===List the components of an object===
===List the components of an object===

This function list the components of an object and extracts:
* this object its XYZ coordinates,
* its edges and their lengths center of mass and coordinates
* its faces and their center of mass
* its faces and their surfaces and coordinates
<div class="mw-collapsible-content">
{{Code|code=
{{Code|code=
# -*- coding: utf-8 -*-
# -*- coding: utf-8 -*-
Line 720: Line 952:
detail()
detail()
}}
}}
</div> <!-- End of collapsible div -->

</div> <!-- End of collapsible div -->
{{Top}}
===List the PropertiesList===
===List the PropertiesList===

{{Code|code=
{{Code|code=
import FreeCADGui
import FreeCADGui
Line 730: Line 965:
Console.PrintMessage("Property: "+ str(p)+ " Value: " + str(o.getPropertyByName(p))+"\r\n")
Console.PrintMessage("Property: "+ str(p)+ " Value: " + str(o.getPropertyByName(p))+"\r\n")
}}
}}
{{Top}}
===Adding one Property "Comment"===
===Add a single Property Comment===

{{Code|code=
{{Code|code=
import Draft
import Draft
Line 737: Line 974:
App.activeDocument().recompute()
App.activeDocument().recompute()
}}
}}
{{Top}}
<div class="mw-collapsible mw-collapsed toccolours">


===Search and data extraction===
===Search and data extraction===
Line 744: Line 983:
Each section is independently and is separated by "############" can be copied directly into the Python console, or in a macro or use this macro. The description of the macro in the commentary.
Each section is independently and is separated by "############" can be copied directly into the Python console, or in a macro or use this macro. The description of the macro in the commentary.


Displaying it in the "View Report" window (View > Views > View report)
Displaying it in the "Report View" window (View > Views > Report view)
{{Code|code=


<div class="mw-collapsible-content">
# -*- coding: utf-8 -*-

{{Code|code=
# -*- coding: utf-8 -*-
# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from __future__ import unicode_literals
Line 754: Line 994:
# Chaque section peut etre copiee directement dans la console Python ou dans une macro ou utilisez la macro tel quel
# Chaque section peut etre copiee directement dans la console Python ou dans une macro ou utilisez la macro tel quel
# Certaines commandes se repetent seul l'approche est differente
# Certaines commandes se repetent seul l'approche est differente
# L'affichage se fait dans la Vue rapport : Menu Affichage > Vues > Vue rapport
# L'affichage se fait dans la Vue rapport : Menu Affichage > Vues > Vue rapport
#
#
# Examples of research and decoding information on an object
# Examples of research and decoding information on an object
# Each section can be copied directly into the Python console, or in a macro or uses this macro
# Each section can be copied directly into the Python console, or in a macro or uses this macro
# Certain commands as repeat alone approach is different
# Certain commands as repeat alone approach is different
# Displayed on Report view : Menu View > Views > report view
# Displayed in Report view: View > Views > report view
#
#
# rev:30/08/2014:29/09/2014:17/09/2015
# rev:30/08/2014:29/09/2014:17/09/2015 22/11/2019 30/12/2022
from FreeCAD import Base
from FreeCAD import Base
import DraftVecUtils, Draft, Part
import DraftVecUtils, Draft, Part

##################################################################################
# info in the object

box = App.ActiveDocument.getObject('Box') # object
####
print(dir(box)) # all options disponible in the object
####
print(box.Name) # object name
####
print(box.Content) # content of the object in XML format
##################################################################################
#
# example of using the information listed
#
# search the name of the active document
mydoc = FreeCAD.activeDocument().Name # Name of active Document
mydoc = FreeCAD.activeDocument().Name # Name of active Document
App.Console.PrintMessage("Active docu : "+(mydoc)+"\n")
App.Console.PrintMessage("Active docu : "+(mydoc)+"\n")
##################################################################################
##################################################################################

# search the document name and the name of the object selected
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
object_FullName = sel[0].FullName # file Name and Name of the object selected
App.Console.PrintMessage("object_FullName: "+(object_FullName)+"\n")
##################################################################################

# search the label of the object selected
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
object_Label = sel[0].Label # Label of the object (modifiable)
object_Label = sel[0].Label # Label of the object (modifiable)
App.Console.PrintMessage("object_Label : "+(object_Label)+"\n")
App.Console.PrintMessage("object_Label : "+(object_Label)+"\n")
##################################################################################
##################################################################################

#TypeID object FreeCAD selected
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
App.Console.PrintMessage("sel : "+str(sel[0])+"\n\n") # sel[0] first object selected
App.Console.PrintMessage("sel : "+str(sel[0])+"\n\n") # sel[0] first object selected
##################################################################################
##################################################################################

# search the Name of the object selected
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
object_Name = sel[0].Name # Name of the object (not modifiable)
object_Name = sel[0].Name # Name of the object (not modifiable)
App.Console.PrintMessage("object_Name : "+str(object_Name)+"\n\n")
App.Console.PrintMessage("object_Name : "+str(object_Name)+"\n\n")
##################################################################################
##################################################################################

# search the Sub Element Name of the sub object selected
try:
try:
SubElement = FreeCADGui.Selection.getSelectionEx() # sub element name with getSelectionEx()
SubElement = FreeCADGui.Selection.getSelectionEx() # sub element name with getSelectionEx()
Line 790: Line 1,055:
except:
except:
App.Console.PrintMessage("Oups"+"\n\n")
App.Console.PrintMessage("Oups"+"\n\n")
##################################################################################
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
App.Console.PrintMessage("sel : "+str(sel[0])+"\n\n") # sel[0] first object selected
##################################################################################
SubElement = FreeCADGui.Selection.getSelectionEx() # sub element name with getSelectionEx()
App.Console.PrintMessage("SubElement : "+str(SubElement[0])+"\n\n") # name of sub element
##################################################################################
##################################################################################


# give the length of the subObject selected
SubElement = Gui.Selection.getSelectionEx()[0].SubObjects[0].Length # sub element or element name with getSelectionEx()
SubElementLength = Gui.Selection.getSelectionEx()[0].SubObjects[0].Length # sub element or element name with getSelectionEx()
App.Console.PrintMessage("SubElement length: "+str(length)+"\n") # length
App.Console.PrintMessage("SubElement length: "+str(SubElementLength)+"\n")# length
##################################################################################
##################################################################################


# list the edges and the coordinates of the object[0] selected
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
i = 0
i = 0
for j in enumerate(sel[0].Shape.Edges): # list all Edges
for j in enumerate(sel[0].Shape.Edges): # list all Edges
i += 1
i += 1
App.Console.PrintMessage("Edges n : "+str(i)+"\n")
App.Console.PrintMessage("Edges n : "+str(i)+"\n")
a = sel[0].Shape.Edges[j[0]].Vertexes[0]
a = sel[0].Shape.Edges[j[0]].Vertexes[0]
App.Console.PrintMessage("X1 : "+str(a.Point.x)+"\n") # coordinate XYZ first point
App.Console.PrintMessage("X1 : "+str(a.Point.x)+"\n") # coordinate XYZ first point
App.Console.PrintMessage("Y1 : "+str(a.Point.y)+"\n")
App.Console.PrintMessage("Y1 : "+str(a.Point.y)+"\n") #
App.Console.PrintMessage("Z1 : "+str(a.Point.z)+"\n")
App.Console.PrintMessage("Z1 : "+str(a.Point.z)+"\n") #
try:
try:
a = sel[0].Shape.Edges[j[0]].Vertexes[1]
a = sel[0].Shape.Edges[j[0]].Vertexes[1]
App.Console.PrintMessage("X2 : "+str(a.Point.x)+"\n") # coordinate XYZ second point
App.Console.PrintMessage("X2 : "+str(a.Point.x)+"\n") # coordinate XYZ second point
App.Console.PrintMessage("Y2 : "+str(a.Point.y)+"\n")
App.Console.PrintMessage("Y2 : "+str(a.Point.y)+"\n") #
App.Console.PrintMessage("Z2 : "+str(a.Point.z)+"\n")
App.Console.PrintMessage("Z2 : "+str(a.Point.z)+"\n") #
except:
except:
App.Console.PrintMessage("Oups"+"\n")
App.Console.PrintMessage("Oups"+"\n")
App.Console.PrintMessage("\n")
App.Console.PrintMessage("\n")
##################################################################################
##################################################################################

# give the sub element name, length, coordinates, BoundBox, BoundBox.Center, Area of the SubObjects selected
try:
try:
SubElement = FreeCADGui.Selection.getSelectionEx() # sub element name with getSelectionEx()
SubElement = FreeCADGui.Selection.getSelectionEx() # sub element name with getSelectionEx()
subElementName = Gui.Selection.getSelectionEx()[0].SubElementNames[0] # sub element name with getSelectionEx()
subElementName = Gui.Selection.getSelectionEx()[0].SubElementNames[0] # sub element name with getSelectionEx()
App.Console.PrintMessage("subElementName : "+str(subElementName)+"\n")
App.Console.PrintMessage("subElementName : "+str(subElementName)+"\n")
subObjectLength = Gui.Selection.getSelectionEx()[0].SubObjects[0].Length # sub element Length
subObjectLength = Gui.Selection.getSelectionEx()[0].SubObjects[0].Length # sub element Length
Line 859: Line 1,119:
App.Console.PrintMessage("Oups"+"\n\n")
App.Console.PrintMessage("Oups"+"\n\n")
##################################################################################
##################################################################################

# give the area of the object
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
surface = sel[0].Shape.Area # Area object complete
surface = sel[0].Shape.Area # Area object complete
App.Console.PrintMessage("surfaceObjet : "+str(surface)+"\n\n")
App.Console.PrintMessage("surfaceObjet : "+str(surface)+"\n\n")
##################################################################################
##################################################################################

# give the Center Of Mass and coordinates of the object
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
CenterOfMass = sel[0].Shape.CenterOfMass # Center of Mass of the object
CenterOfMass = sel[0].Shape.CenterOfMass # Center of Mass of the object
App.Console.PrintMessage("CenterOfMass : "+str(CenterOfMass)+"\n")
App.Console.PrintMessage("CenterOfMass : "+str(CenterOfMass)+"\n")
App.Console.PrintMessage("CenterOfMassX : "+str(CenterOfMass[0])+"\n") # coordinates [0]=X [1]=Y [2]=Z
App.Console.PrintMessage("CenterOfMassX : "+str(CenterOfMass[0])+"\n") # coordinates [0]=X [1]=Y [2]=Z
App.Console.PrintMessage("CenterOfMassY : "+str(CenterOfMass[1])+"\n")
App.Console.PrintMessage("CenterOfMassY : "+str(CenterOfMass[1])+"\n") # or CenterOfMass.x, CenterOfMass.y, CenterOfMass.z
App.Console.PrintMessage("CenterOfMassZ : "+str(CenterOfMass[2])+"\n\n")
App.Console.PrintMessage("CenterOfMassZ : "+str(CenterOfMass[2])+"\n\n")
##################################################################################
##################################################################################

# list the all faces of the object selected
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
for j in enumerate(sel[0].Shape.Faces): # List alles faces of the object
for j in enumerate(sel[0].Shape.Faces): # List alles faces of the object
Line 878: Line 1,141:
App.Console.PrintMessage("\n\n")
App.Console.PrintMessage("\n\n")
##################################################################################
##################################################################################

# give the volume of the object selected
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
volume_ = sel[0].Shape.Volume # Volume of the object
volume_ = sel[0].Shape.Volume # Volume of the object
Line 884: Line 1,148:
##################################################################################
##################################################################################
# give the BoundBox of the oject selected all type
objs = FreeCADGui.Selection.getSelection() # select object with getSelection()
objs = FreeCADGui.Selection.getSelection() # select object with getSelection()
if len(objs) >= 1: # serch the object type

if len(objs) >= 1:
if hasattr(objs[0], "Shape"):
if hasattr(objs[0], "Shape"):
s = objs[0].Shape
s = objs[0].Shape
Line 894: Line 1,158:
s = objs[0].Points
s = objs[0].Points


#sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
boundBox_= s.BoundBox # BoundBox of the object
App.Console.PrintMessage("boundBox_ : "+str(boundBox_)+"\n") #
#boundBox_= sel[0].Shape.BoundBox # BoundBox of the object
boundBox_= s.BoundBox # BoundBox of the object
App.Console.PrintMessage("boundBox_ : "+str(boundBox_)+"\n")
boundBoxLX = boundBox_.XLength # Length x boundBox rectangle
boundBoxLX = boundBox_.XLength # Length x boundBox rectangle
boundBoxLY = boundBox_.YLength # Length y boundBox rectangle
boundBoxLY = boundBox_.YLength # Length y boundBox rectangle
boundBoxLZ = boundBox_.ZLength # Length z boundBox rectangle
boundBoxLZ = boundBox_.ZLength # Length z boundBox rectangle

boundBoxXMin = boundBox_.XMin # coordonate XMin
boundBoxYMin = boundBox_.YMin # coordonate YMin
boundBoxZMin = boundBox_.ZMin # coordonate ZMin
boundBoxXMax = boundBox_.XMax # coordonate XMax
boundBoxYMax = boundBox_.YMax # coordonate YMax
boundBoxZMax = boundBox_.ZMax # coordonate ZMax

boundBoxDiag= boundBox_.DiagonalLength # Diagonal Length boundBox rectangle
boundBoxDiag= boundBox_.DiagonalLength # Diagonal Length boundBox rectangle
boundBoxCenter = boundBox_.Center # BoundBox Center
boundBoxCenterOfGravity = boundBox_.CenterOfGravity # BoundBox CenterOfGravity


App.Console.PrintMessage("boundBoxLX : "+str(boundBoxLX)+"\n")
App.Console.PrintMessage("boundBoxLX : "+str(boundBoxLX)+"\n")
App.Console.PrintMessage("boundBoxLY : "+str(boundBoxLY)+"\n")
App.Console.PrintMessage("boundBoxLY : "+str(boundBoxLY)+"\n")
App.Console.PrintMessage("boundBoxLZ : "+str(boundBoxLZ)+"\n")
App.Console.PrintMessage("boundBoxLZ : "+str(boundBoxLZ)+"\n\n")

App.Console.PrintMessage("boundBoxDiag : "+str(boundBoxDiag)+"\n\n")
App.Console.PrintMessage("boundBoxXMin : "+str(boundBoxXMin)+"\n")
App.Console.PrintMessage("boundBoxYMin : "+str(boundBoxYMin)+"\n")
App.Console.PrintMessage("boundBoxZMin : "+str(boundBoxZMin)+"\n")
App.Console.PrintMessage("boundBoxXMax : "+str(boundBoxXMax)+"\n")
App.Console.PrintMessage("boundBoxYMax : "+str(boundBoxYMax)+"\n")
App.Console.PrintMessage("boundBoxZMax : "+str(boundBoxZMax)+"\n\n")

App.Console.PrintMessage("boundBoxDiag : "+str(boundBoxDiag)+"\n")
App.Console.PrintMessage("boundBoxCenter : "+str(boundBoxCenter)+"\n")

App.Console.PrintMessage("boundBox Center of Gravity : "+str(boundBoxCenterOfGravity )+"\n\n")


##################################################################################
##################################################################################

# give the complete placement of the object selected
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
pl = sel[0].Shape.Placement # Placement Vector XYZ and Yaw-Pitch-Roll
pl = sel[0].Shape.Placement # Placement Vector XYZ and Yaw-Pitch-Roll
App.Console.PrintMessage("Placement : "+str(pl)+"\n")
App.Console.PrintMessage("Placement : "+str(pl)+"\n")
##################################################################################
##################################################################################

# give the placement Base (xyz) of the object selected
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
pl = sel[0].Shape.Placement.Base # Placement Vector XYZ
pl = sel[0].Shape.Placement.Base # Placement Vector XYZ
Line 921: Line 1,206:
##################################################################################
##################################################################################
# give the placement Base (xyz) of the object selected
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
oripl_X = sel[0].Placement.Base[0] # decode Placement X
oripl_X = sel[0].Placement.Base[0] # decode Placement X
oripl_Y = sel[0].Placement.Base[1] # decode Placement Y
oripl_Y = sel[0].Placement.Base[1] # decode Placement Y
oripl_Z = sel[0].Placement.Base[2] # decode Placement Z
oripl_Z = sel[0].Placement.Base[2] # decode Placement Z

# same
#oripl_X = sel[0].Placement.Base.x # decode Placement X
#oripl_Y = sel[0].Placement.Base.y # decode Placement Y
#oripl_Z = sel[0].Placement.Base.z # decode Placement Z
App.Console.PrintMessage("oripl_X : "+str(oripl_X)+"\n")
App.Console.PrintMessage("oripl_X : "+str(oripl_X)+"\n")
Line 930: Line 1,221:
App.Console.PrintMessage("oripl_Z : "+str(oripl_Z)+"\n\n")
App.Console.PrintMessage("oripl_Z : "+str(oripl_Z)+"\n\n")
##################################################################################
##################################################################################

# give the placement rotation of the object selected (x, y, z, angle rotation)
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
rotation = sel[0].Placement.Rotation # decode Placement Rotation
rotation = sel[0].Placement.Rotation # decode Placement Rotation
App.Console.PrintMessage("rotation : "+str(rotation)+"\n\n")
App.Console.PrintMessage("rotation : "+str(rotation)+"\n\n")
##################################################################################
##################################################################################

# give the placement rotation of the object selected (x, y, z, angle rotation)
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
pl = sel[0].Shape.Placement.Rotation # decode Placement Rotation other method
pl = sel[0].Shape.Placement.Rotation # decode Placement Rotation other method
App.Console.PrintMessage("Placement Rot : "+str(pl)+"\n\n")
App.Console.PrintMessage("Placement Rot : "+str(pl)+"\n\n")
##################################################################################
##################################################################################

# give the rotation of the object selected (angle rotation)
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
pl = sel[0].Shape.Placement.Rotation.Angle # decode Placement Rotation Angle
pl = sel[0].Shape.Placement.Rotation.Angle # decode Placement Rotation Angle
App.Console.PrintMessage("Placement Rot Angle : "+str(pl)+"\n\n")
App.Console.PrintMessage("Placement Rot Angle : "+str(pl)+"\n\n")
##################################################################################
##################################################################################

# give the rotation.Q of the object selected (angle rotation in Radian) for convert: math.degrees(angleInRadian)
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
Rot = sel[0].Placement.Rotation.Q # Placement Rotation Q
App.Console.PrintMessage("Rot : "+str(Rot)+ "\n")
Rot_0 = sel[0].Placement.Rotation.Q[0] # decode Placement Rotation Q
Rot_0 = sel[0].Placement.Rotation.Q[0] # decode Placement Rotation Q
App.Console.PrintMessage("Rot_0 : "+str(Rot_0)+ " rad , "+str(180 * Rot_0 / 3.1416)+" deg "+"\n")
App.Console.PrintMessage("Rot_0 : "+str(Rot_0)+ " rad , "+str(180 * Rot_0 / 3.1416)+" deg "+"\n") # or math.degrees(angle)
Rot_1 = sel[0].Placement.Rotation.Q[1] # decode Placement Rotation 1
Rot_1 = sel[0].Placement.Rotation.Q[1] # decode Placement Rotation 1
App.Console.PrintMessage("Rot_1 : "+str(Rot_1)+ " rad , "+str(180 * Rot_1 / 3.1416)+" deg "+"\n")
App.Console.PrintMessage("Rot_1 : "+str(Rot_1)+ " rad , "+str(180 * Rot_1 / 3.1416)+" deg "+"\n") # or math.degrees(angle)
Rot_2 = sel[0].Placement.Rotation.Q[2] # decode Placement Rotation 2
Rot_2 = sel[0].Placement.Rotation.Q[2] # decode Placement Rotation 2
App.Console.PrintMessage("Rot_2 : "+str(Rot_2)+ " rad , "+str(180 * Rot_2 / 3.1416)+" deg "+"\n")
App.Console.PrintMessage("Rot_2 : "+str(Rot_2)+ " rad , "+str(180 * Rot_2 / 3.1416)+" deg "+"\n") # or math.degrees(angle)

Rot_3 = sel[0].Placement.Rotation.Q[3] # decode Placement Rotation 3
Rot_3 = sel[0].Placement.Rotation.Q[3] # decode Placement Rotation 3
App.Console.PrintMessage("Rot_3 : "+str(Rot_3)+"\n\n")
App.Console.PrintMessage("Rot_3 : "+str(Rot_3)+"\n\n")

##################################################################################
Rot_Axis = sel[0].Placement.Rotation.Axis # Placement Rotation .Axis
App.Console.PrintMessage("Rot_Axis : "+str(Rot_Axis)+ "\n")
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
Rot_Angle = sel[0].Placement.Rotation.Angle # Placement Rotation .Angle
App.Console.PrintMessage("Rot_Angle : "+str(Rot_Angle)+ "\n\n")
Yaw = sel[0].Shape.Placement.Rotation.toEuler()[0] # decode angle Euler Yaw (Z)
##################################################################################

# give the rotation of the object selected toEuler (angle rotation in degrees)
sel = FreeCADGui.Selection.getSelection() # select object with getSelection()
angle = sel[0].Shape.Placement.Rotation.toEuler() # angle Euler
App.Console.PrintMessage("Angle : "+str(angle)+"\n")
Yaw = sel[0].Shape.Placement.Rotation.toEuler()[0] # decode angle Euler Yaw (Z) lacet (alpha)
App.Console.PrintMessage("Yaw : "+str(Yaw)+"\n")
App.Console.PrintMessage("Yaw : "+str(Yaw)+"\n")
Pitch = sel[0].Shape.Placement.Rotation.toEuler()[1] # decode angle Euler Pitch (Y)
Pitch = sel[0].Shape.Placement.Rotation.toEuler()[1] # decode angle Euler Pitch (Y) tangage (beta)
App.Console.PrintMessage("Pitch : "+str(Pitch)+"\n")
App.Console.PrintMessage("Pitch : "+str(Pitch)+"\n")
Roll = sel[0].Shape.Placement.Rotation.toEuler()[2] # decode angle Euler Roll (X)
Roll = sel[0].Shape.Placement.Rotation.toEuler()[2] # decode angle Euler Roll (X) roulis (gamma)
App.Console.PrintMessage("Roll : "+str(Roll)+"\n\n")
App.Console.PrintMessage("Roll : "+str(Roll)+"\n\n")

rot = App.Rotation()
rot.setYawPitchRoll(45,45,0)
print("Angle: ", rot.Angle)
print("Axis: ", rot.Axis)
print("RawAxis: ", rot.RawAxis)
print("YawPitchRoll: ", rot.getYawPitchRoll())
print("Rotation: ", rot)
print("Quaternion: ", rot.Q)

##################################################################################
##################################################################################


# find Midpoint of the selected line
import DraftGeomUtils
import Draft, DraftGeomUtils
sel = FreeCADGui.Selection.getSelection()
sel = FreeCADGui.Selection.getSelection()
vecteur = DraftGeomUtils.findMidpoint(sel[0].Shape.Edges[0]) # find Midpoint
vecteur = DraftGeomUtils.findMidpoint(sel[0].Shape.Edges[0]) # find Midpoint
Line 976: Line 1,294:
##################################################################################
##################################################################################
}}
}}
</div> <!-- End of collapsible div -->
</div> <!-- End of collapsible div -->
{{Top}}
===Manual search of an element with label===
===Manual search of an element with label===

{{Code|code=
{{Code|code=
# Extract the coordinate X,Y,Z and Angle giving the label
# Extract the coordinate X,Y,Z and Angle giving the label (here "Cylindre")
App.Console.PrintMessage("Base.x : "+str(FreeCAD.ActiveDocument.getObjectsByLabel("Cylindre")[0].Placement.Base.x)+"\n")
App.Console.PrintMessage("Base.x : "+str(FreeCAD.ActiveDocument.getObjectsByLabel("Cylindre")[0].Placement.Base.x)+"\n")
App.Console.PrintMessage("Base.y : "+str(FreeCAD.ActiveDocument.getObjectsByLabel("Cylindre")[0].Placement.Base.y)+"\n")
App.Console.PrintMessage("Base.y : "+str(FreeCAD.ActiveDocument.getObjectsByLabel("Cylindre")[0].Placement.Base.y)+"\n")
Line 987: Line 1,309:
}}
}}


'''PS:''' Usually the angles are given in Radian to convert :
'''Note:''' Usually the angles are given in Radian. To convert them:


#angle in Degrees to Radians :
#angle in Degrees to Radians :
Line 995: Line 1,317:
#*Angle in degree = '''180 * (angle in radian) / pi'''
#*Angle in degree = '''180 * (angle in radian) / pi'''
#*Angle in degree = math.degrees(angle in radian)
#*Angle in degree = math.degrees(angle in radian)
{{Top}}

===Cartesian coordinates ===
===Cartesian coordinates===


This code displays the Cartesian coordinates of the selected item.
This code displays the Cartesian coordinates of the selected item.


Change the value of "numberOfPoints" if you want a different number of points (precision)
Change the value of "numberOfPoints" if you want a different number of points (precision)

{{Code|code=
{{Code|code=
numberOfPoints = 100 # Decomposition number (or precision you can change)
numberOfPoints = 100 # Decomposition number (or precision you can change)
Line 1,008: Line 1,331:
for p in points: # list and display the coordinates
for p in points: # list and display the coordinates
i+=1
i+=1
print i, " X", p.x, " Y", p.y, " Z", p.z
print( i, " X", p.x, " Y", p.y, " Z", p.z)
}}
}}

Other method display on "Int" and "Float"
Other method display on "Int" and "Float"

{{Code|code=
{{Code|code=
import Part
import Part
Line 1,037: Line 1,362:
for i in p1:
for i in p1:
ii+=1
ii+=1
print i # Vector()
print( i ) # Vector()
print ii, ": X:", i.x, " Y:", i.y, " Z:", i.z # Vector decode
print( ii, ": X:", i.x, " Y:", i.y, " Z:", i.z ) # Vector decode
Draft.makeWire(p1,closed=False,face=False,support=None) # to see the difference accuracy (20)
Draft.makeWire(p1,closed=False,face=False,support=None) # to see the difference accuracy (20)


## uncomment to use
## uncomment to use
Line 1,054: Line 1,379:
for i in p2:
for i in p2:
ii+=1
ii+=1
print i # Vector()
print( i ) # Vector()
print ii, ": X:", i.x, " Y:", i.y, " Z:", i.z # Vector decode
print( ii, ": X:", i.x, " Y:", i.y, " Z:", i.z ) # Vector decode
Draft.makeWire(p2,closed=False,face=False,support=None) # to see the difference accuracy (0.5)
Draft.makeWire(p2,closed=False,face=False,support=None) # to see the difference accuracy (0.5)


Line 1,066: Line 1,391:


}}
}}
{{Top}}
===Select all objects in the document===
===Select all objects in the document===

{{Code|code=
{{Code|code=
import FreeCAD
import FreeCAD
for obj in FreeCAD.ActiveDocument.Objects:
for obj in FreeCAD.ActiveDocument.Objects:
print obj.Name # display the object Name
print( obj.Name ) # display the object Name
objName = obj.Name
objName = obj.Name
obj = App.ActiveDocument.getObject(objName)
obj = App.ActiveDocument.getObject(objName)
Gui.Selection.addSelection(obj) # select the object
Gui.Selection.addSelection(obj) # select the object
}}
}}
{{Top}}
===Selecting a face of an object===
===Select a face of an object by Name object and Face number===

{{Code|code=
{{Code|code=
# select one face of the object
# select one face of the object
Line 1,088: Line 1,417:
#Draft.makeFacebinder(s) #
#Draft.makeFacebinder(s) #
}}
}}
{{Top}}
===Get the normal vector of a face of an object by Name object and number Face (r.Q)===

{{Code|code=
## normal of a face by giving the number of the face and the name of the object (rotation Q with yL, uV) = (App.Vector (x, y, z), angle))
## normal d'une face en donnant le numero de la face et le nom de l'objet (rotation Q avec yL, uV) = (App.Vector(x, y, z),angle))
from FreeCAD import Vector

numero_Face = 2 # number of the face searched (begin 0, 1, 2, 3 .....)
nomObjet = "Box" # object name
yL = Gui.ActiveDocument.getObject(nomObjet).Object.Shape.Faces[numero_Face].CenterOfMass
uv = Gui.ActiveDocument.getObject(nomObjet).Object.Shape.Faces[numero_Face].Surface.parameter(yL)

nv = Gui.ActiveDocument.getObject(nomObjet).Object.Shape.Faces[numero_Face].normalAt(uv[0], uv[1])
direction = yL.sub(nv + yL)
print("Direction : ",direction)

r = App.Rotation(App.Vector(0,0,1),direction)
print("Rotation : ", r)
print("Rotation Q : ", r.Q)

}}
{{Top}}
===Get the normal vector of a face of an object by Name object and number of Face===

{{Code|code=
numero_Face = 2 # number of the face searched (begin 0, 1, 2, 3 .....)
nomObjet = "Box" # object name
normal = Gui.ActiveDocument.getObject(nomObjet).Object.Shape.Faces[numero_Face].normalAt(0,0)
print("Face"+str(numero_Face), " : ", normal)

}}
{{Top}}
===Get the normal vector of an object selected and number of Face===

{{Code|code=
## normal of a face by giving the number of the face of the selected object
selectionObjects = FreeCADGui.Selection.getSelection()
numero_Face = 3 # numero de la face recherchee
normal = selectionObjects[0].Shape.Faces[numero_Face].normalAt(0,0)
print(normal)
# selectionne la face numerotee
Gui.Selection.clearSelection()
Gui.Selection.addSelection(selectionObjects[0],"Face"+str(numero_Face))
}}
{{Top}}
===Get the normal vector on the surface===

This example show how to find normal vector on the surface by find the u,v parameters of one point on the surface and use u,v parameters to find normal vector

{{Code|code=
def normal(self):
ss=FreeCADGui.Selection.getSelectionEx()[0].SubObjects[0].copy()#SubObjects[0] is the edge list
points = ss.discretize(3.0)#points on the surface edge,
#this example just use points on the edge for example.
#However point is not necessary on the edge, it can be anywhere on the surface.
face=FreeCADGui.Selection.getSelectionEx()[0].SubObjects[1]
for pp in points:
pt=FreeCAD.Base.Vector(pp.x,pp.y,pp.z)#a point on the surface edge
uv=face.Surface.parameter(pt)# find the surface u,v parameter of a point on the surface edge
u=uv[0]
v=uv[1]
normal=face.normalAt(u,v)#use u,v to find normal vector
print( normal)
line=Part.makeLine((pp.x,pp.y,pp.z), (normal.x,normal.y,normal.z))
Part.show(line)
}}
{{Top}}
=== Get the normal vector of the face and create a line at the point mouse clicked ===

{{Code|code=
import PySide2
import Draft, Part, FreeCAD, FreeCADGui
import FreeCADGui as Gui
from FreeCAD import Base

FreeCAD.ActiveDocument.openTransaction("Tyty") # memorise les actions (avec annuler restore)
selectedFace = FreeCADGui.Selection.getSelectionEx()[0].SubObjects[0]
pointClick = FreeCADGui.Selection.getSelectionEx()[0].PickedPoints[0]

########## section direction
plr = FreeCAD.Placement()
yL = pointClick
uv = selectedFace.Surface.parameter(yL)
nv = direction = selectedFace.normalAt(uv[0], uv[1])
r = App.Rotation(App.Vector(0,0,1),nv)
plr.Rotation.Q = r.Q
plr.Base = pointClick
########## section direction

line = Draft.make_wire([App.Vector(0.0,0.0,0.0), App.Vector(0.0,0.0,20.0)] ) # create line
line.Placement=plr
FreeCAD.ActiveDocument.recompute()
print( "Direction (radian) : ",direction ) # direction in radian
}}

{{Top}}
===Get the normal vector of a surface from a STL file===

{{Code|code=
def getNormal(cb):
if cb.getEvent().getState() == coin.SoButtonEvent.UP:
pp = cb.getPickedPoint()
if pp:
vec = pp.getNormal().getValue()
index = coin.cast(pp.getDetail(), "SoFaceDetail").getFaceIndex()
print("Normal: {}, Face index: {}".format(str(vec), index))

from pivy import coin
meth=Gui.ActiveDocument.ActiveView.addEventCallbackPivy(coin.SoMouseButtonEvent.getClassTypeId(), getNormal)
}}

you are done then run for quit:

{{Code|code=
Gui.ActiveDocument.ActiveView.removeEventCallbackPivy(coin.SoMouseButtonEvent.getClassTypeId(), meth)
}}
{{Top}}
===Create one object to the position of the Camera===
===Create one object to the position of the Camera===

{{Code|code=
{{Code|code=
# create one object of the position to camera with "getCameraOrientation()"
# create one object of the position to camera with "getCameraOrientation()"
Line 1,105: Line 1,553:
####### extract data
####### extract data


#print a
#print( a)
#print a[0]
#print( a[0])
#print a[1]
#print( a[1])
#print a[2]
#print( a[2])
#print a[3]
#print( a[3])


xP = float(a[0])
xP = float(a[0])
Line 1,121: Line 1,569:
rec = Draft.makeRectangle(length=10.0,height=10.0,placement=pl,face=False,support=None) # create rectangle
rec = Draft.makeRectangle(length=10.0,height=10.0,placement=pl,face=False,support=None) # create rectangle
#rec = Draft.makeCircle(radius=5,placement=pl,face=False,support=None) # create circle
#rec = Draft.makeCircle(radius=5,placement=pl,face=False,support=None) # create circle
print rec.Name
print( rec.Name)
}}
}}

here same code simplified
here same code simplified

{{Code|code=
{{Code|code=
import Draft
import Draft
Line 1,131: Line 1,581:
rec = Draft.makeRectangle(length=10.0,height=10.0,placement=pl,face=False,support=None)
rec = Draft.makeRectangle(length=10.0,height=10.0,placement=pl,face=False,support=None)
}}
}}
{{Top}}
===Read And write one Expression===


=== Find normal vector on the surface ===

This example show how to find normal vector on the surface by find the u,v parameters of one point on the surface and use u,v parameters to find normal vector
{{Code|code=
def normal(self):
ss=FreeCADGui.Selection.getSelectionEx()[0].SubObjects[0].copy()#SubObjects[0] is the edge list
points = ss.discretize(3.0)#points on the surface edge,
#this example just use points on the edge for example.
#However point is not necessary on the edge, it can be anywhere on the surface.
face=FreeCADGui.Selection.getSelectionEx()[0].SubObjects[1]
for pp in points:
pt=FreeCAD.Base.Vector(pp.x,pp.y,pp.z)#a point on the surface edge
uv=face.Surface.parameter(pt)# find the surface u,v parameter of a point on the surface edge
u=uv[0]
v=uv[1]
normal=face.normalAt(u,v)#use u,v to find normal vector
print normal
line=Part.makeLine((pp.x,pp.y,pp.z), (normal.x,normal.y,normal.z))
Part.show(line)
}}
===Read And write one Expression===
{{Code|code=
{{Code|code=
import Draft
import Draft
Line 1,162: Line 1,593:
obj = Draft.makeCircle(radius=1.0,placement=pl,face=False,support=None) # create circle
obj = Draft.makeCircle(radius=1.0,placement=pl,face=False,support=None) # create circle


print obj.PropertiesList # properties disponible in the obj
print( obj.PropertiesList ) # properties disponible in the obj


doc.getObject(obj.Name).setExpression('Radius', u'2mm') # modify the radius
doc.getObject(obj.Name).setExpression('Radius', u'2mm') # modify the radius
Line 1,170: Line 1,601:


expressions = obj.ExpressionEngine # read the expression list
expressions = obj.ExpressionEngine # read the expression list
print expressions
print( expressions)


for i in expressions: # list and separate the data expression
for i in expressions: # list and separate the data expression
print i[0]," = ",i[1]
print( i[0]," = ",i[1])


}}
}}
{{Top}}
===Create a Sketch on a Surface in PartDesign===


This snippet can be useful, if you want to create a sketch on a surface in PartDesign from inside a macro.
Note, that body might be None, if no active body is selected and that the Selection might be empty.


{{Code|code=
===Get the normal vector of a suface from a STL file===
body = Gui.ActiveDocument.ActiveView.getActiveObject('pdbody')
first_selection = Gui.Selection.getSelectionEx()[0]

feature = first_selection.Object
face_name = first_selection.SubElementNames[0]

sketch = App.ActiveDocument.addObject('Sketcher::SketchObject','MySketch')
body.addObject(sketch)
sketch.MapMode = 'FlatFace'
sketch.Support = (feature, face_name)

App.ActiveDocument.recompute()
}}
{{Top}}
===How to Simulate a Mouse Click at a given Coordinate===

The position is relative to the GL widget. See [https://forum.freecadweb.org/viewtopic.php?f=22&t=44008 forum thread].


{{Code|code=
{{Code|code=
from PySide2 import QtCore
def getNormal(cb):
from PySide2 import QtGui
if cb.getEvent().getState() == coin.SoButtonEvent.UP:
from PySide2 import QtWidgets
pp = cb.getPickedPoint()
if pp:
vec = pp.getNormal().getValue()
index = coin.cast(pp.getDetail(), "SoFaceDetail").getFaceIndex()
print ("Normal: {}, Face index: {}".format(str(vec), index))


mw = Gui.getMainWindow()
from pivy import coin
gl = mw.findChild(QtWidgets.QOpenGLWidget)
meth=Gui.ActiveDocument.ActiveView.addEventCallbackPivy(coin.SoMouseButtonEvent.getClassTypeId(), getNormal)
me = QtGui.QMouseEvent(QtCore.QEvent.MouseButtonRelease, QtCore.QPoint(800,300), QtCore.Qt.LeftButton, QtCore.Qt.LeftButton, QtCore.Qt.NoModifier)

app = QtWidgets.QApplication.instance()
app.sendEvent(gl, me)
}}
}}


If you have a 3d point and want to get the 2d point on the opengl widget then use this:
you are done then run for quit:


{{Code|code=
{{Code|code=
from PySide2 import QtCore
Gui.ActiveDocument.ActiveView.removeEventCallbackPivy(coin.SoMouseButtonEvent.getClassTypeId(), meth)
from PySide2 import QtGui
from PySide2 import QtWidgets
from FreeCAD import Base

x, y, z, = 10,10,10
v = Gui.ActiveDocument.ActiveView
point3d = Base.Vector(x, y, z)
point2d = v.getPointOnScreen(point3d)
size = v.getSize()
coordX = point2d[0]
coordY = size[1] - point2d[1]

me = QtGui.QMouseEvent(QtCore.QEvent.MouseButtonRelease, QtCore.QPoint(coordX,coordY), QtCore.Qt.LeftButton, QtCore.Qt.LeftButton, QtCore.Qt.NoModifier)

}}
}}
{{Top}}
=== How to create a face with holes using Python API ===


This snippet demonstrates how to create a face with internal holes through the Python API. See [https://forum.freecadweb.org/viewtopic.php?f=22&t=56308 forum thread].
{{docnav/ja|[[Embedding FreeCAD/ja|Embedding FreeCAD]]|[[Line drawing function/ja|Line drawing function]]}}


{{Code|code=
{{Userdocnavi}}
import FreeCAD, Part


# Create poles that will define the Face
<div class="mw-translate-fuzzy">
pts = [(-2, 2, 0),
[[Category:Poweruser Documentation/ja]]
(0, 2, 1),
[[Category:Python Code/ja]]
(2, 2, 0),
[[Category:Tutorials/ja]]
(2, -2, 0),
</div>
(0, -2, 1),
(-2, -2, 0)]

bs = Part.BSplineCurve()
bs.buildFromPoles(pts, True) # True makes this periodic/closed

# Make the Face from the curve
myFace = Part.makeFilledFace([bs.toShape()])

# Create geometry for holes that will be cut in the surface
hole0 = Part.Geom2d.Circle2d(FreeCAD.Base.Vector2d(0,0), 1.0)
hole1 = Part.Geom2d.Circle2d(FreeCAD.Base.Vector2d(0,1.5), 0.1)

edge0 = hole0.toShape(myFace)
edge1 = hole1.toShape(myFace)
wireb = Part.Wire(bs.toShape())
wire0 = Part.Wire(edge0)
wire1 = Part.Wire(edge1)

# Cut holes in the face
myFace.cutHoles([wire0])
myFace.validate() # This is required
myFace.cutHoles([wire1])
myFace.validate()

Part.show(myFace)
}}

{{Top}}
=== Close and restart FreeCAD ===

{{Code|code=
import PySide2
from PySide2 import QtWidgets, QtCore, QtGui

def restart_freecad():
"""Shuts down and restarts FreeCAD"""

args = QtWidgets.QApplication.arguments()[1:]
if FreeCADGui.getMainWindow().close():
QtCore.QProcess.startDetached(
QtWidgets.QApplication.applicationFilePath(), args
)
}}

{{Top}}
==Coin3D==


See [[Coin3d_snippets|Coin3d snippets]]
[[Category:Python Code]]
{{Top}}
==Related==


* [[Scripted objects]]
[[Category:Tutorials]]
* [[Macros]]
* [[Topological_data_scripting]]
{{Top}}


{{Powerdocnavi{{#translation:}}}}
{{clear}}
[[Category:Developer Documentation{{#translation:}}]]
[[Category:Python Code{{#translation:}}]]

Latest revision as of 08:07, 11 January 2024

Introduction

このページにはフォーラムでユーザーが作成したり議論した中から集めたFreeCAD用Pythonコードのサンプル、コード片、コードの一部を集めて載せています。あなたのスクリプトの参考にしてください・・・

Snippets

典型的なInitGui.pyファイル

全てのモジュールにはメインモジュールファイルに加えてメインGUIにモジュールを挿入するためのInitGui.pyファイルが含まれていなければなりません。これはその単純な例です。

Every module must contain, besides your main module file, an InitGui.py file, responsible for inserting the module in the main Gui. This is an example of a simple one.

class ScriptWorkbench (Workbench): 
    MenuText = "Scripts"
    def Initialize(self):
        import Scripts # assuming Scripts.py is your module
        list = ["Script_Cmd"] # That list must contain command names, that can be defined in Scripts.py
        self.appendToolbar("My Scripts",list) 
        
Gui.addWorkbench(ScriptWorkbench())

Top

典型的なモジュールファイル

モジュールが行う処理の全てが記載されているメインモジュールファイルの例です。前の例で呼び出されるScripts.pyファイルです。自作のコマンドの全てをここに記載します。

This is an example of a main module file, containing everything your module does. It is the Scripts.py file invoked by the previous example. You can have all your custom commands here.

import FreeCAD, FreeCADGui 
 
class ScriptCmd: 
   def Activated(self): 
       # Here your write what your ScriptCmd does...
       FreeCAD.Console.PrintMessage('Hello, World!')
   def GetResources(self): 
       return {'Pixmap' : 'path_to_an_icon/myicon.png', 'MenuText': 'Short text', 'ToolTip': 'More detailed text'} 
       
FreeCADGui.addCommand('Script_Cmd', ScriptCmd())

Top

新しいファイルタイプをインポート

FreeCADでは簡単に新しいファイルタイプ用のインポート処理を作成することができます。FreeCADはデータを開かれているドキュメントからインポートするか、たんに直接新しいファイルタイプを開くかを区別しません。やらなければならないのは新しいファイル拡張子を FreeCADのリストに追加し、そのファイルを読み込んで欲しいFreeCADオブジェクトを作成するコードを書くことだけです:

Making an importer for a new filetype in FreeCAD is easy. FreeCAD doesn't consider that you import data in an opened document, but rather that you simply can directly open the new filetype. So what you need to do is to add the new file extension to FreeCAD's list of known extensions, and write the code that will read the file and create the FreeCAD objects you want:

リストに新しいファイル拡張子を追加するためには以下の行をInitGui.pyに追加しなければなりません:

# Assumes Import_Ext.py is the file that has the code for opening and reading .ext files
FreeCAD.addImportType("Your new File Type (*.ext)","Import_Ext")
# .extファイルを開いて読み込むためのコードがあるファイルをImport_Ext.pyとします
FreeCAD.addImportType("Your new File Type (*.ext)","Import_Ext") 

Import_Ext.pyファイルには以下のように書きます:

def open(filename): 
   doc=App.newDocument()
   # here you do all what is needed with filename, read, classify data, create corresponding FreeCAD objects
   doc.recompute()

新しいファイルタイプへのドキュメントのエクスポートも以下の行を使用する以外は同様にして行います:

FreeCAD.addExportType("Your new File Type (*.ext)","Export_Ext")

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ラインの追加

ラインは2点を持ちます:

import Part,PartGui 
doc=App.activeDocument() 
# ライン要素をドキュメントに追加し、その点を設定
l=Part.Line()
l.StartPoint=(0.0,0.0,0.0)
l.EndPoint=(1.0,1.0,1.0)
doc.addObject("Part::Feature","Line").Shape=l.toShape() 
doc.recompute()

A line simply has 2 points.

import Part,PartGui 
doc=App.activeDocument() 
# add a line element to the document and set its points 
l=Part.LineSegment()
l.StartPoint=(0.0,0.0,0.0)
l.EndPoint=(1.0,1.0,1.0)
doc.addObject("Part::Feature","Line").Shape=l.toShape() 
doc.recompute()

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ポリゴンの追加

ポリゴンはつながった線分の集合(AutoCADでいうポリライン)です。線分の集合が閉じている必要はありません。

A polygon is simply a set of connected line segments (a polyline in AutoCAD). It doesn't need to be closed.

import Part, PartGui 
doc = App.activeDocument()
n = list() 

# create a 3D vector, set its coordinates and add it to the list 
v = App.Vector(0,0,0) 
n.append(v) 
v = App.Vector(10,0,0) 
n.append(v) 
#... repeat for all nodes 

# Create a polygon object and set its nodes 
p = doc.addObject("Part::Polygon","Polygon") 
p.Nodes = n 
doc.recompute()

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グループに対するオブジェクトの追加と削除

doc=App.activeDocument() 
grp=doc.addObject("App::DocumentObjectGroup", "Group") 
lin=doc.addObject("Part::Feature", "Line")
grp.addObject(lin) # adds the lin object to the group grp
grp.removeObject(lin) # removes the lin object from the group grp

注意: グループにグループを追加することも可能です・・・

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メッシュの追加

import Mesh
doc=App.activeDocument()
# create a new empty mesh
m = Mesh.Mesh()
# build up box out of 12 facets
m.addFacet(0.0,0.0,0.0, 0.0,0.0,1.0, 0.0,1.0,1.0)
m.addFacet(0.0,0.0,0.0, 0.0,1.0,1.0, 0.0,1.0,0.0)
m.addFacet(0.0,0.0,0.0, 1.0,0.0,0.0, 1.0,0.0,1.0)
m.addFacet(0.0,0.0,0.0, 1.0,0.0,1.0, 0.0,0.0,1.0)
m.addFacet(0.0,0.0,0.0, 0.0,1.0,0.0, 1.0,1.0,0.0)
m.addFacet(0.0,0.0,0.0, 1.0,1.0,0.0, 1.0,0.0,0.0)
m.addFacet(0.0,1.0,0.0, 0.0,1.0,1.0, 1.0,1.0,1.0)
m.addFacet(0.0,1.0,0.0, 1.0,1.0,1.0, 1.0,1.0,0.0)
m.addFacet(0.0,1.0,1.0, 0.0,0.0,1.0, 1.0,0.0,1.0)
m.addFacet(0.0,1.0,1.0, 1.0,0.0,1.0, 1.0,1.0,1.0)
m.addFacet(1.0,1.0,0.0, 1.0,1.0,1.0, 1.0,0.0,1.0)
m.addFacet(1.0,1.0,0.0, 1.0,0.0,1.0, 1.0,0.0,0.0)
# scale to a edge langth of 100
m.scale(100.0)
# add the mesh to the active document
me=doc.addObject("Mesh::Feature","Cube")
me.Mesh=m

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円弧または円の追加

import Part
doc = App.activeDocument()
c = Part.Circle() 
c.Radius=10.0  
f = doc.addObject("Part::Feature", "Circle") # create a document with a circle feature 
f.Shape = c.toShape() # Assign the circle shape to the shape property 
doc.recompute()

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オブジェクト表現へのアクセスと変更

FreeCADドキュメント内の各オブジェクトは関連付けられたビュー表現オブジェクトを持ち、そのビュー表現オブジェクトはそのオブジェクトがどのように表示されるかを定義する色、ライン幅などの全てのプロパティを保持しています。

Each object in a FreeCAD document has an associated view representation object that stores all the parameters that define how that object appears: i.e. color, linewidth, etc... See also List the components of an object snippet below

gad = Gui.activeDocument() # access the active document containing all 
                           # view representations of the features in the
                           # corresponding App document 

v = gad.getObject("Cube")  # access the view representation to the Mesh feature 'Cube' 
v.ShapeColor               # prints the color to the console 
v.ShapeColor=(1.0,1.0,1.0) # sets the shape color to white

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Replace the form of mouse with one image

import PySide2
from PySide2 import QtCore, QtGui, QtWidgets
from PySide2.QtWidgets import QApplication
from PySide2.QtGui import QColor, QPixmap, QImage, QPainter, QCursor
from PySide2.QtCore import Qt

myImage = QtGui.QPixmap("Complete_Path_to_image.bmp")
cursor = QtGui.QCursor(myImage)
QtWidgets.QApplication.setOverrideCursor(QtGui.QCursor(cursor))

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Replace the form of mouse with one image (cross) include

The image is created by Gimp exported in a .XPM file. Copy and use the code between the bracket "{" code to copy "}"

import PySide2
from PySide2 import QtCore, QtGui, QtWidgets
from PySide2.QtWidgets import QApplication
from PySide2.QtGui import QColor, QPixmap, QImage, QPainter, QCursor
from PySide2.QtCore import Qt

cross32x32Icon = [
"32 32 2 1",
" 	c None",
".	c #FF0000",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                                ",
"............... . ..............",
"                                ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               ",
"                .               "
]

myImage = QtGui.QPixmap(cross32x32Icon)
cursor = QtGui.QCursor(myImage)
QtWidgets.QApplication.setOverrideCursor(QtGui.QCursor(cursor))

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Observe camera change in the 3D viewer via Python

This can be done adding a Node sensor to the camera:

from pivy import coin
def callback(*args):
    cam, sensor = args
    print()
    print("Cam position : {}".format(cam.position.getValue().getValue()))
    print("Cam rotation : {}".format(cam.orientation.getValue().getValue()))

camera_node = Gui.ActiveDocument.ActiveView.getCameraNode()
node_sensor = coin.SoNodeSensor(callback, camera_node)
node_sensor.attach(camera_node)

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Pythonから3Dビューアーのマウスイベントを監視

Inventorフレームワークでは 複数のコールバック用ノードをビューアーへのシーングラフへ追加することができます。デフォルトではFreeCADはビューアーごとに一つのコールバック用ノードがインストールされており、それを使うとグローバルまたはスタティックなC++関数を追加することができます。適切なPythonバインディングではこのテクニックをPythonコードから利用するためのメソッドが提供されています。

The Inventor framework allows to add one or more callback nodes to the scenegraph of the viewer. By default in FreeCAD one callback node is installed per viewer which allows to add global or static C++ functions. In the appropriate Python binding some methods are provided to make use of this technique from within Python code.

App.newDocument()
v=Gui.activeDocument().activeView()
 
#This class logs any mouse button events. As the registered callback function fires twice for 'down' and
#'up' events we need a boolean flag to handle this.
class ViewObserver:
   def logPosition(self, info):
       down = (info["State"] == "DOWN")
       pos = info["Position"]
       if (down):
           FreeCAD.Console.PrintMessage("Clicked on position: ("+str(pos[0])+", "+str(pos[1])+")\n")
       
o = ViewObserver()
c = v.addEventCallback("SoMouseButtonEvent",o.logPosition)


このクラスは全てのマウスボタンイベントを記録します。登録されたコールバック関数は'down'イベントと'up'イベントで
# 二回、ファイヤーします。これをハンドリングするためのブール値フラグが必要です。

さあ、3Dビューアーの領域のどこかをピックして出力ウィンドウにメッセージが表示されるのを見てください。監視を終了するには次のようにします。

v.removeEventCallback("SoMouseButtonEvent",c)

次のイベント型がサポートされています。

  • SoEvent -- 全ての種類のイベント
  • SoButtonEvent -- 全てのマウスボタンイベントとキーイベント
  • SoLocation2Event -- 2D動作イベント(通常はマウス動作)
  • SoMotion3Event -- 3D動作イベント(通常はスペースボール)
  • SoKeyboardEvent -- キーダウンイベントとキーアップイベント
  • SoMouseButtonEvent -- マウスのボタンダウンイベントとボタンアップイベント
  • SoSpaceballButtonEvent -- スペースボールのボタンダウンイベントとボタンアップイベント

addEventCallback()によって登録されるPython関数は辞書を要求します。検知されたイベントに従って辞書には様々なキーが保持されます。

全てのイベントは次のキーを持ちます:

  • Type -- イベント型の名前、つまりSoMouseEvent、SoLocation2Event、・・・などです。
  • Time -- 文字列形式での現在時刻
  • Position -- マウス位置を表す二つの整数のタプル
  • ShiftDown -- ブール値。Shiftが押されている場合はtrue、それ以外の場合はfalse。
  • CtrlDown -- ブール値。Ctrlが押されている場合はtrue、それ以外の場合はfalse。
  • AltDown -- ブール値。Altが押されている場合はtrue、それ以外の場合はfalse。

全てのボタンイベント、つまりキーボードイベント、マウスイベント、スペースボールイベントの場合:

  • State -- ボタンが離された場合は'UP'、押された場合は'DOWN'、それ以外の場合は'UNKNOWN'の文字列

キーボードイベントの場合:

  • Key -- 押されたキーの文字

マウスボタンイベントの場合:

  • Button -- 押されたボタン。BUTTON1、・・・、BUTTON5など。

スペースボールイベントの場合:

  • Button -- 押されたボタン。BUTTON1、・・・、BUTTON7など。

そして最後にモーションイベントの場合:

  • Translation -- 三つの浮動小数点数のタプル
  • Rotation -- 回転のクォータニオン、つまり四つの浮動小数点数のタプル

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Display keys pressed and Events command

This macro displays in the report view the keys pressed and all events command

App.newDocument()
v=Gui.activeDocument().activeView()
class ViewObserver:
   def logPosition(self, info):
       try:
           down = (info["Key"])
           FreeCAD.Console.PrintMessage(str(down)+"\n") # here the character pressed
           FreeCAD.Console.PrintMessage(str(info)+"\n") # list all events command
           FreeCAD.Console.PrintMessage("_______________________________________"+"\n")
       except Exception:
           None
 
o = ViewObserver()
c = v.addEventCallback("SoEvent",o.logPosition)

#v.removeEventCallback("SoEvent",c) # remove ViewObserver

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Pythonでのシーングラフ操作

Coin用のPythonバインディングである'pivy'モジュールを使ってPythonでシーングラフを取得して変更することも可能です。

It is also possible to get and change the scenegraph in Python, with the 'pivy' module -- a Python binding for Coin.

from pivy.coin import *                # load the pivy module
view = Gui.ActiveDocument.ActiveView   # get the active viewer
root = view.getSceneGraph()            # the root is an SoSeparator node
root.addChild(SoCube())
view.fitAll()

pivyのPythonAPIはSWIGというツールを使って作られています。FreeCADで使用する場合、自作ノードをPythonで直接作成することはできません。 ただし、内部的な名称を使ってノードを作成することはできます。'SoFCSelection'型のインスタンスは次のようにして作成することが可能です:

type = SoType.fromName("SoFCSelection")
node = type.createInstance()

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シーングラフに対するオブジェクトの追加と削除

シーングラフへの新しいノードの追加は以下のようにして行うことができます。オブジェクトのジオメトリー、座標、マテリアルの情報の追加のためには常にSoSeparatorの追加が必要なことに注意してください。次の例では (0,0,0)から(10,0,0):に引かれた赤いラインを追加しています。

Adding new nodes to the scenegraph can be done this way. Take care of always adding a SoSeparator to contain the geometry, coordinates and material info of a same object. The following example adds a red line from (0,0,0) to (10,0,0):

from pivy import coin
sg = Gui.ActiveDocument.ActiveView.getSceneGraph()
co = coin.SoCoordinate3()
pts = [[0,0,0],[10,0,0]]
co.point.setValues(0,len(pts),pts)
ma = coin.SoBaseColor()
ma.rgb = (1,0,0)
li = coin.SoLineSet()
li.numVertices.setValue(2)
no = coin.SoSeparator()
no.addChild(co)
no.addChild(ma)
no.addChild(li)
sg.addChild(no)

削除は次の様にします:

sg.removeChild(no)

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Save the sceneGraph in 3 series of 36 files

View the code snippet by expanding this section

import math
import time
from FreeCAD import Base
from pivy import coin

size=(1000,1000)
dirname = "C:/Temp/animation/"
steps=36
angle=2*math.pi/steps

matX=Base.Matrix()
matX.rotateX(angle)
stepsX=Base.Placement(matX).Rotation

matY=Base.Matrix()
matY.rotateY(angle)
stepsY=Base.Placement(matY).Rotation

matZ=Base.Matrix()
matZ.rotateZ(angle)
stepsZ=Base.Placement(matZ).Rotation

view=Gui.ActiveDocument.ActiveView
cam=view.getCameraNode()
rotCamera=Base.Rotation(*cam.orientation.getValue().getValue())

# this sets the lookat point to the center of circumsphere of the global bounding box
view.fitAll()

# the camera's position, i.e. the user's eye point
position=Base.Vector(*cam.position.getValue().getValue())
distance=cam.focalDistance.getValue()

# view direction
vec=rotCamera.multVec(Base.Vector(0,0,-1))

# this is the point on the screen the camera looks at
# when rotating the camera we should make this point fix
lookat=position+vec*distance

# around x axis
for i in range(steps):
    rotCamera=stepsX.multiply(rotCamera)
    cam.orientation.setValue(*rotCamera.Q)
    vec=rotCamera.multVec(Base.Vector(0,0,-1))
    pos=lookat-vec*distance
    cam.position.setValue(pos.x,pos.y,pos.z)
    Gui.updateGui()
    time.sleep(0.3)
    view.saveImage(dirname+"x-%d.png" % i,*size)

# around y axis
for i in range(steps):
    rotCamera=stepsY.multiply(rotCamera)
    cam.orientation.setValue(*rotCamera.Q)
    vec=rotCamera.multVec(Base.Vector(0,0,-1))
    pos=lookat-vec*distance
    cam.position.setValue(pos.x,pos.y,pos.z)
    Gui.updateGui()
    time.sleep(0.3)
    view.saveImage(dirname+"y-%d.png" % i,*size)

# around z axis
for i in range(steps):
    rotCamera=stepsZ.multiply(rotCamera)
    cam.orientation.setValue(*rotCamera.Q)
    vec=rotCamera.multVec(Base.Vector(0,0,-1))
    pos=lookat-vec*distance
    cam.position.setValue(pos.x,pos.y,pos.z)
    Gui.updateGui()
    time.sleep(0.3)
    view.saveImage(dirname+"z-%d.png" % i,*size)

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コンボビューへのタブの追加

次のコードを使うとFreeCADのコンボビューの"Project"タブ、"Tasks"タブの隣にタブを追加することができます。またuiファイルを直接そのタブに読み込むためにuicモジュールを使用しています。

You can create custom widgets with Qt designer, transform them into a python script, and then load them into the FreeCAD interface with PySide.

The python code produced by the Ui python compiler (the tool that converts qt-designer .ui files into python code) generally looks like this (it is simple, you can also code it directly in python):

class myWidget_Ui(object):
    def setupUi(self, myWidget):
        myWidget.setObjectName("my Nice New Widget")
        myWidget.resize(QtCore.QSize(QtCore.QRect(0,0,300,100).size()).expandedTo(myWidget.minimumSizeHint())) # sets size of the widget
 
        self.label = QtGui.QLabel(myWidget) # creates a label
        self.label.setGeometry(QtCore.QRect(50,50,200,24)) # sets its size
        self.label.setObjectName("label") # sets its name, so it can be found by name

    def retranslateUi(self, draftToolbar): # built-in QT function that manages translations of widgets
        myWidget.setWindowTitle(QtGui.QApplication.translate("myWidget", "My Widget", None, QtGui.QApplication.UnicodeUTF8))
        self.label.setText(QtGui.QApplication.translate("myWidget", "Welcome to my new widget!", None, QtGui.QApplication.UnicodeUTF8))

Then, all you need to do is to create a reference to the FreeCAD Qt window, insert a custom widget into it, and "transform" this widget into yours with the Ui code we just made:

app = QtGui.qApp
FCmw = app.activeWindow() # the active qt window, = the freecad window since we are inside it
# FCmw = FreeCADGui.getMainWindow() # use this line if the 'addDockWidget' error is declared
myNewFreeCADWidget = QtGui.QDockWidget() # create a new dckwidget
myNewFreeCADWidget.ui = myWidget_Ui() # load the Ui script
myNewFreeCADWidget.ui.setupUi(myNewFreeCADWidget) # setup the ui
FCmw.addDockWidget(QtCore.Qt.RightDockWidgetArea,myNewFreeCADWidget) # add the widget to the main window

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Add a Tab to the Combo View

The following code allows you to add a tab to the Combo view, separate from the preexisting "Model" and "Tasks" tabs. It also uses the uic module to load an UI file directly in that tab.

# create new Tab in ComboView
from PySide import QtGui,QtCore
#from PySide import uic

def getMainWindow():
   "returns the main window"
   # using QtGui.qApp.activeWindow() isn't very reliable because if another
   # widget than the mainwindow is active (e.g. a dialog) the wrong widget is
   # returned
   toplevel = QtGui.qApp.topLevelWidgets()
   for i in toplevel:
       if i.metaObject().className() == "Gui::MainWindow":
           return i
   raise Exception("No main window found")

def getComboView(mw):
   dw=mw.findChildren(QtGui.QDockWidget)
   for i in dw:
       if str(i.objectName()) == "Combo View":
           return i.findChild(QtGui.QTabWidget)
       elif str(i.objectName()) == "Python Console":
           return i.findChild(QtGui.QTabWidget)
   raise Exception ("No tab widget found")

mw = getMainWindow()
tab = getComboView(getMainWindow())
tab2=QtGui.QDialog()
tab.addTab(tab2,"A Special Tab")

#uic.loadUi("/myTaskPanelforTabs.ui",tab2)
tab2.show()
#tab.removeTab(2)

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Enable or disable a window

This script give the ability to manipulate the UI from the Python console to show/hide different components in the FreeCAD interface such as:

from PySide import QtGui
mw = FreeCADGui.getMainWindow()
dws = mw.findChildren(QtGui.QDockWidget)

# objectName may be :
# "Report view"
# "Tree view"
# "Property view"
# "Selection view"
# "Combo View"
# "Python console"
# "draftToolbar"

for i in dws:
  if i.objectName() == "Report view":
    dw = i
    break

va = dw.toggleViewAction()
va.setChecked(True)        # True or False
dw.setVisible(True)        # True or False

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自作ウェブページを開く

import WebGui
WebGui.openBrowser("http://www.example.com")

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開いたウェブページのHTMLコンテンツを取得

from PySide import QtGui,QtWebKit
a = QtGui.qApp
mw = a.activeWindow()
v = mw.findChild(QtWebKit.QWebFrame)
html = unicode(v.toHtml())
print( html)

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Retrieve the coordinates of 3 selected points or objects

# -*- coding: utf-8 -*-
# the line above to put the accentuated in the remarks
# If this line is missing, an error will be returned
# extract and use the coordinates of 3 objects selected
import Part, FreeCAD, math, PartGui, FreeCADGui
from FreeCAD import Base, Console
sel = FreeCADGui.Selection.getSelection() # " sel " contains the items selected
if len(sel)!=3 :
  # If there are no 3 objects selected, an error is displayed in the report view
  # The \r and \n at the end of line mean return and the newline CR + LF.
  Console.PrintError("Select 3 points exactly\r\n")
else :
  points=[]
  for obj in sel:
    points.append(obj.Shape.BoundBox.Center)

  for pt in points:
    # display of the coordinates in the report view
    Console.PrintMessage(str(pt.x)+"\r\n")
    Console.PrintMessage(str(pt.y)+"\r\n")
    Console.PrintMessage(str(pt.z)+"\r\n")

  Console.PrintMessage(str(pt[1]) + "\r\n")

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List all objects

# -*- coding: utf-8 -*-
import FreeCAD,Draft
# List all objects of the document
doc = FreeCAD.ActiveDocument
objs = FreeCAD.ActiveDocument.Objects
#App.Console.PrintMessage(str(objs) + "\n")
#App.Console.PrintMessage(str(len(FreeCAD.ActiveDocument.Objects)) + " Objects"  + "\n")

for obj in objs:
    a = obj.Name                                             # list the Name  of the object  (not modifiable)
    b = obj.Label                                            # list the Label of the object  (modifiable)
    try:
        c = obj.LabelText                                    # list the LabeText of the text (modifiable)
        App.Console.PrintMessage(str(a) +" "+ str(b) +" "+ str(c) + "\n") # Displays the Name the Label and the text
    except:
        App.Console.PrintMessage(str(a) +" "+ str(b) + "\n") # Displays the Name and the Label of the object

#doc.removeObject("Box") # Clears the designated object

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List the dimensions of an object, given its name

for edge in FreeCAD.ActiveDocument.MyObjectName.Shape.Edges: # replace "MyObjectName" for list
    print( edge.Length)

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Function resident with the mouse click action

Here with SelObserver on a object select

# -*- coding: utf-8 -*-
# causes an action to the mouse click on an object
# This function remains resident (in memory) with the function "addObserver(s)"
# "removeObserver(s) # Uninstalls the resident function
class SelObserver:
    def setPreselection(self,doc,obj,sub):                # Preselection object
        App.Console.PrintMessage(str(sub)+ "\n")          # The part of the object name

    def addSelection(self,doc,obj,sub,pnt):               # Selection object
        App.Console.PrintMessage("addSelection"+ "\n")
        App.Console.PrintMessage(str(doc)+ "\n")          # Name of the document
        App.Console.PrintMessage(str(obj)+ "\n")          # Name of the object
        App.Console.PrintMessage(str(sub)+ "\n")          # The part of the object name
        App.Console.PrintMessage(str(pnt)+ "\n")          # Coordinates of the object
        App.Console.PrintMessage("______"+ "\n")

    def removeSelection(self,doc,obj,sub):                # Remove the selection
        App.Console.PrintMessage("removeSelection"+ "\n")

    def setSelection(self,doc):                           # Set selection
        App.Console.PrintMessage("setSelection"+ "\n")

    def clearSelection(self,doc):                         # If click on the screen, clear the selection
        App.Console.PrintMessage("clearSelection"+ "\n")  # If click on another object, clear the previous object
s =SelObserver()
FreeCADGui.Selection.addObserver(s)                       # install the function mode resident
#FreeCADGui.Selection.removeObserver(s)                   # Uninstall the resident function

Other example with ViewObserver on a object select or view

App.newDocument()
v=Gui.activeDocument().activeView()
 
#This class logs any mouse button events. As the registered callback function fires twice for 'down' and
#'up' events we need a boolean flag to handle this.
class ViewObserver:
   def __init__(self, view):
       self.view = view
   
   def logPosition(self, info):
       down = (info["State"] == "DOWN")
       pos = info["Position"]
       if (down):
           FreeCAD.Console.PrintMessage("Clicked on position: ("+str(pos[0])+", "+str(pos[1])+")\n")
           pnt = self.view.getPoint(pos)
           FreeCAD.Console.PrintMessage("World coordinates: " + str(pnt) + "\n")
           info = self.view.getObjectInfo(pos)
           FreeCAD.Console.PrintMessage("Object info: " + str(info) + "\n")

o = ViewObserver(v)
c = v.addEventCallback("SoMouseButtonEvent",o.logPosition)

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Display the active document

class DocObserver:                      # document Observer
    def slotActivateDocument(self,doc):
        print(doc.Name)

obs=DocObserver()
App.addDocumentObserver(obs)
#App.removeDocumentObserver(obs)                 # desinstalle la fonction residente

To remove the observer call:

App.removeDocumentObserver(obs)                 # desinstalle la fonction residente

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Find/select all elements below the cursor

from pivy import coin
import FreeCADGui

def mouse_over_cb( event_callback):
    event = event_callback.getEvent()
    pos = event.getPosition().getValue()
    listObjects = FreeCADGui.ActiveDocument.ActiveView.getObjectsInfo((int(pos[0]),int(pos[1])))
    obj = []
    if listObjects:
        FreeCAD.Console.PrintMessage("\n *** Objects under mouse pointer ***")
        for o in listObjects:
            label = str(o["Object"])
            if not label in obj:
                obj.append(label)
        FreeCAD.Console.PrintMessage("\n"+str(obj))


view = FreeCADGui.ActiveDocument.ActiveView

mouse_over = view.addEventCallbackPivy( coin.SoLocation2Event.getClassTypeId(), mouse_over_cb )

# to remove Callback :
#view.removeEventCallbackPivy( coin.SoLocation2Event.getClassTypeId(), mouse_over)

####
#The easy way is probably to use FreeCAD's selection.
#FreeCADGui.ActiveDocument.ActiveView.getObjectsInfo(mouse_coords)

####
#you get that kind of result :
#'Document': 'Unnamed', 'Object': 'Box', 'Component': 'Face2', 'y': 8.604081153869629, 'x': 21.0, 'z': 8.553047180175781

####
#You can use this data to add your element to FreeCAD's selection :
#FreeCADGui.Selection.addSelection(FreeCAD.ActiveDocument.Box,'Face2',21.0,8.604081153869629,8.553047180175781)

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List the components of an object

This function list the components of an object and extracts:

  • this object its XYZ coordinates,
  • its edges and their lengths center of mass and coordinates
  • its faces and their center of mass
  • its faces and their surfaces and coordinates
# -*- coding: utf-8 -*-
# This function list the components of an object
# and extract this object its XYZ coordinates,
# its edges and their lengths center of mass and coordinates
# its faces and their center of mass
# its faces and their surfaces and coordinates
# 8/05/2014

import Draft,Part
def detail():
    sel = FreeCADGui.Selection.getSelection()   # Select an object
    if len(sel) != 0:                           # If there is a selection then
        Vertx=[]
        Edges=[]
        Faces=[]
        compt_V=0
        compt_E=0
        compt_F=0
        pas    =0
        perimetre = 0.0   
        EdgesLong = []

        # Displays the "Name" and the "Label" of the selection
        App.Console.PrintMessage("Selection > " + str(sel[0].Name) + "  " + str(sel[0].Label) +"\n"+"\n")

        for j in enumerate(sel[0].Shape.Edges):                                     # Search the "Edges" and their lengths
            compt_E+=1
            Edges.append("Edge%d" % (j[0]+1))
            EdgesLong.append(str(sel[0].Shape.Edges[compt_E-1].Length))
            perimetre += (sel[0].Shape.Edges[compt_E-1].Length)                     # calculates the perimeter

            # Displays the "Edge" and its length
            App.Console.PrintMessage("Edge"+str(compt_E)+" Length > "+str(sel[0].Shape.Edges[compt_E-1].Length)+"\n")

            # Displays the "Edge" and its center mass
            App.Console.PrintMessage("Edge"+str(compt_E)+" Center > "+str(sel[0].Shape.Edges[compt_E-1].CenterOfMass)+"\n")

            num = sel[0].Shape.Edges[compt_E-1].Vertexes[0]
            Vertx.append("X1: "+str(num.Point.x))
            Vertx.append("Y1: "+str(num.Point.y))
            Vertx.append("Z1: "+str(num.Point.z))
            # Displays the coordinates 1
            App.Console.PrintMessage("X1: "+str(num.Point[0])+" Y1: "+str(num.Point[1])+" Z1: "+str(num.Point[2])+"\n")

            try:
                num = sel[0].Shape.Edges[compt_E-1].Vertexes[1]
                Vertx.append("X2: "+str(num.Point.x))
                Vertx.append("Y2: "+str(num.Point.y))
                Vertx.append("Z2: "+str(num.Point.z))
            except:
                Vertx.append("-")
                Vertx.append("-")
                Vertx.append("-")
            # Displays the coordinates 2
            App.Console.PrintMessage("X2: "+str(num.Point[0])+" Y2: "+str(num.Point[1])+" Z2: "+str(num.Point[2])+"\n")

            App.Console.PrintMessage("\n")
        App.Console.PrintMessage("Perimeter of the form  : "+str(perimetre)+"\n") 

        App.Console.PrintMessage("\n")
        FacesSurf = []
        for j in enumerate(sel[0].Shape.Faces):                                      # Search the "Faces" and their surface
            compt_F+=1
            Faces.append("Face%d" % (j[0]+1))
            FacesSurf.append(str(sel[0].Shape.Faces[compt_F-1].Area))

            # Displays 'Face' and its surface
            App.Console.PrintMessage("Face"+str(compt_F)+" >  Surface "+str(sel[0].Shape.Faces[compt_F-1].Area)+"\n")

            # Displays 'Face' and its CenterOfMass
            App.Console.PrintMessage("Face"+str(compt_F)+" >  Center  "+str(sel[0].Shape.Faces[compt_F-1].CenterOfMass)+"\n")

            # Displays 'Face' and its Coordinates
            FacesCoor = []
            fco = 0
            for f0 in sel[0].Shape.Faces[compt_F-1].Vertexes:                        # Search the Vertexes of the face
                fco += 1
                FacesCoor.append("X"+str(fco)+": "+str(f0.Point.x))
                FacesCoor.append("Y"+str(fco)+": "+str(f0.Point.y))
                FacesCoor.append("Z"+str(fco)+": "+str(f0.Point.z))

            # Displays 'Face' and its Coordinates
            App.Console.PrintMessage("Face"+str(compt_F)+" >  Coordinate"+str(FacesCoor)+"\n")

            # Displays 'Face' and its Volume
            App.Console.PrintMessage("Face"+str(compt_F)+" >  Volume  "+str(sel[0].Shape.Faces[compt_F-1].Volume)+"\n")
            App.Console.PrintMessage("\n")

        # Displays the total surface of the form
        App.Console.PrintMessage("Surface of the form    : "+str(sel[0].Shape.Area)+"\n")

        # Displays the total Volume of the form
        App.Console.PrintMessage("Volume  of the form    : "+str(sel[0].Shape.Volume)+"\n")

detail()

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List the PropertiesList

import FreeCADGui
from FreeCAD import Console
o = App.ActiveDocument.ActiveObject
op = o.PropertiesList
for p in op:
    Console.PrintMessage("Property: "+ str(p)+ " Value: " + str(o.getPropertyByName(p))+"\r\n")

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Add a single Property Comment

import Draft
obj = FreeCADGui.Selection.getSelection()[0]
obj.addProperty("App::PropertyString","GComment","Draft","Font name").GComment = "Comment here"
App.activeDocument().recompute()

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Search and data extraction

Examples of research and decoding information on an object.

Each section is independently and is separated by "############" can be copied directly into the Python console, or in a macro or use this macro. The description of the macro in the commentary.

Displaying it in the "Report View" window (View > Views > Report view)

# -*- coding: utf-8 -*-
from __future__ import unicode_literals
 
# Exemples de recherche et de decodage d'informations sur un objet
# Chaque section peut etre copiee directement dans la console Python ou dans une macro ou utilisez la macro tel quel
# Certaines commandes se repetent seul l'approche est differente
# L'affichage se fait dans la Vue rapport : Menu Affichage > Vues > Vue rapport
#
# Examples of research and decoding information on an object
# Each section can be copied directly into the Python console, or in a macro or uses this macro
# Certain commands as repeat alone approach is different
# Displayed in Report view: View > Views > report view
#
# rev:30/08/2014:29/09/2014:17/09/2015 22/11/2019 30/12/2022
 
from FreeCAD import Base
import DraftVecUtils, Draft, Part

##################################################################################
# info in the object

box = App.ActiveDocument.getObject('Box')                                 # object 
####
print(dir(box))                                                           # all options disponible in the object
####
print(box.Name)                                                           # object name
####
print(box.Content)                                                        # content of the object in XML format
##################################################################################
#
# example of using the information listed
#
# search the name of the active document 
mydoc = FreeCAD.activeDocument().Name                                     # Name of active Document
App.Console.PrintMessage("Active docu    : "+(mydoc)+"\n")
##################################################################################

# search the document name and the name of the object selected
sel = FreeCADGui.Selection.getSelection()                                 # select object with getSelection()
object_FullName = sel[0].FullName                                         # file Name and Name of the object selected
App.Console.PrintMessage("object_FullName: "+(object_FullName)+"\n")
##################################################################################

# search the label of the object selected
sel = FreeCADGui.Selection.getSelection()                                 # select object with getSelection()
object_Label = sel[0].Label                                               # Label of the object (modifiable)
App.Console.PrintMessage("object_Label   : "+(object_Label)+"\n")
##################################################################################

#TypeID object FreeCAD selected
sel = FreeCADGui.Selection.getSelection()                                 # select object with getSelection()
App.Console.PrintMessage("sel            : "+str(sel[0])+"\n\n")          # sel[0] first object selected
##################################################################################

# search the Name of the object selected
sel = FreeCADGui.Selection.getSelection()                                 # select object with getSelection()
object_Name  = sel[0].Name                                                # Name of the object (not modifiable)
App.Console.PrintMessage("object_Name    : "+str(object_Name)+"\n\n")
##################################################################################

# search the Sub Element Name of the sub object selected
try:
    SubElement = FreeCADGui.Selection.getSelectionEx()                    # sub element name with getSelectionEx()
    element_ = SubElement[0].SubElementNames[0]                           # name of 1 element selected
    App.Console.PrintMessage("elementSelec   : "+str(element_)+"\n\n")            
except:
    App.Console.PrintMessage("Oups"+"\n\n")            
##################################################################################

# give the length of the subObject selected
SubElementLength = Gui.Selection.getSelectionEx()[0].SubObjects[0].Length # sub element or element name with getSelectionEx()
App.Console.PrintMessage("SubElement length: "+str(SubElementLength)+"\n")# length
##################################################################################

# list the edges and the coordinates of the object[0] selected
sel = FreeCADGui.Selection.getSelection()                                 # select object with getSelection()
i = 0
for j in enumerate(sel[0].Shape.Edges):                                   # list all Edges
    i += 1
    App.Console.PrintMessage("Edges n : "+str(i)+"\n")
    a = sel[0].Shape.Edges[j[0]].Vertexes[0]
    App.Console.PrintMessage("X1             : "+str(a.Point.x)+"\n")     # coordinate XYZ first point
    App.Console.PrintMessage("Y1             : "+str(a.Point.y)+"\n")     #
    App.Console.PrintMessage("Z1             : "+str(a.Point.z)+"\n")     #
    try:
        a = sel[0].Shape.Edges[j[0]].Vertexes[1]
        App.Console.PrintMessage("X2             : "+str(a.Point.x)+"\n") # coordinate XYZ second point
        App.Console.PrintMessage("Y2             : "+str(a.Point.y)+"\n") #
        App.Console.PrintMessage("Z2             : "+str(a.Point.z)+"\n") #
    except:
        App.Console.PrintMessage("Oups"+"\n")    
App.Console.PrintMessage("\n")    
##################################################################################

# give the sub element name, length, coordinates, BoundBox, BoundBox.Center, Area of the SubObjects selected
try:
    SubElement = FreeCADGui.Selection.getSelectionEx()                                        # sub element name with getSelectionEx()
    subElementName = Gui.Selection.getSelectionEx()[0].SubElementNames[0]                     # sub element name with getSelectionEx()
    App.Console.PrintMessage("subElementName : "+str(subElementName)+"\n")
    
    subObjectLength = Gui.Selection.getSelectionEx()[0].SubObjects[0].Length                  # sub element Length
    App.Console.PrintMessage("subObjectLength: "+str(subObjectLength)+"\n\n")
    
    subObjectX1 = Gui.Selection.getSelectionEx()[0].SubObjects[0].Vertexes[0].Point.x         # sub element coordinate X1
    App.Console.PrintMessage("subObject_X1   : "+str(subObjectX1)+"\n")
    subObjectY1 = Gui.Selection.getSelectionEx()[0].SubObjects[0].Vertexes[0].Point.y         # sub element coordinate Y1
    App.Console.PrintMessage("subObject_Y1   : "+str(subObjectY1)+"\n")
    subObjectZ1 = Gui.Selection.getSelectionEx()[0].SubObjects[0].Vertexes[0].Point.z         # sub element coordinate Z1
    App.Console.PrintMessage("subObject_Z1   : "+str(subObjectZ1)+"\n\n")

    try:
        subObjectX2 = Gui.Selection.getSelectionEx()[0].SubObjects[0].Vertexes[1].Point.x     # sub element coordinate X2
        App.Console.PrintMessage("subObject_X2   : "+str(subObjectX2)+"\n")
        subObjectY2 = Gui.Selection.getSelectionEx()[0].SubObjects[0].Vertexes[1].Point.y     # sub element coordinate Y2
        App.Console.PrintMessage("subObject_Y2   : "+str(subObjectY2)+"\n")
        subObjectZ2 = Gui.Selection.getSelectionEx()[0].SubObjects[0].Vertexes[1].Point.z     # sub element coordinate Z2
        App.Console.PrintMessage("subObject_Z2   : "+str(subObjectZ2)+"\n\n")
    except:
        App.Console.PrintMessage("Oups"+"\n\n")            

    subObjectBoundBox = Gui.Selection.getSelectionEx()[0].SubObjects[0].BoundBox              # sub element BoundBox coordinates
    App.Console.PrintMessage("subObjectBBox  : "+str(subObjectBoundBox)+"\n")
    
    subObjectBoundBoxCenter = Gui.Selection.getSelectionEx()[0].SubObjects[0].BoundBox.Center # sub element BoundBoxCenter
    App.Console.PrintMessage("subObjectBBoxCe: "+str(subObjectBoundBoxCenter)+"\n")
    
    surfaceFace = Gui.Selection.getSelectionEx()[0].SubObjects[0].Area                        # Area of the face selected
    App.Console.PrintMessage("surfaceFace    : "+str(surfaceFace)+"\n\n")
except:
    App.Console.PrintMessage("Oups"+"\n\n")            
##################################################################################

# give the area of the object
sel = FreeCADGui.Selection.getSelection()                                 # select object with getSelection()
surface = sel[0].Shape.Area                                               # Area object complete
App.Console.PrintMessage("surfaceObjet   : "+str(surface)+"\n\n")
##################################################################################

# give the Center Of Mass and coordinates of the object
sel = FreeCADGui.Selection.getSelection()                                 # select object with getSelection()
CenterOfMass = sel[0].Shape.CenterOfMass                                  # Center of Mass of the object
App.Console.PrintMessage("CenterOfMass   : "+str(CenterOfMass)+"\n")
App.Console.PrintMessage("CenterOfMassX  : "+str(CenterOfMass[0])+"\n")   # coordinates [0]=X [1]=Y [2]=Z
App.Console.PrintMessage("CenterOfMassY  : "+str(CenterOfMass[1])+"\n")   # or CenterOfMass.x, CenterOfMass.y, CenterOfMass.z
App.Console.PrintMessage("CenterOfMassZ  : "+str(CenterOfMass[2])+"\n\n")
##################################################################################

# list the all faces of the object selected
sel = FreeCADGui.Selection.getSelection()                                 # select object with getSelection()
for j in enumerate(sel[0].Shape.Faces):                                   # List alles faces of the object
    App.Console.PrintMessage("Face           : "+str("Face%d" % (j[0]+1))+"\n")
App.Console.PrintMessage("\n\n")
##################################################################################

# give the volume of the object selected
sel = FreeCADGui.Selection.getSelection()                                 # select object with getSelection()
volume_ = sel[0].Shape.Volume                                             # Volume of the object
App.Console.PrintMessage("volume_        : "+str(volume_)+"\n\n")
##################################################################################
 
# give the BoundBox of the oject selected all type
objs = FreeCADGui.Selection.getSelection()                                 # select object with getSelection()
if len(objs) >= 1:                                                         # serch the object type
    if hasattr(objs[0], "Shape"):
        s = objs[0].Shape
    elif hasattr(objs[0], "Mesh"):      # upgrade with wmayer thanks #http://forum.freecadweb.org/viewtopic.php?f=13&t=22331
        s = objs[0].Mesh
    elif hasattr(objs[0], "Points"):
        s = objs[0].Points

boundBox_= s.BoundBox                                                     # BoundBox of the object
App.Console.PrintMessage("boundBox_      : "+str(boundBox_)+"\n")         # 
 
boundBoxLX   = boundBox_.XLength                                          # Length x boundBox rectangle
boundBoxLY   = boundBox_.YLength                                          # Length y boundBox rectangle
boundBoxLZ   = boundBox_.ZLength                                          # Length z boundBox rectangle

boundBoxXMin = boundBox_.XMin                                             # coordonate XMin
boundBoxYMin = boundBox_.YMin                                             # coordonate YMin
boundBoxZMin = boundBox_.ZMin                                             # coordonate ZMin
boundBoxXMax = boundBox_.XMax                                             # coordonate XMax
boundBoxYMax = boundBox_.YMax                                             # coordonate YMax
boundBoxZMax = boundBox_.ZMax                                             # coordonate ZMax

boundBoxDiag= boundBox_.DiagonalLength                                    # Diagonal Length boundBox rectangle
boundBoxCenter = boundBox_.Center                                         # BoundBox Center
boundBoxCenterOfGravity = boundBox_.CenterOfGravity                       # BoundBox CenterOfGravity

App.Console.PrintMessage("boundBoxLX     : "+str(boundBoxLX)+"\n")
App.Console.PrintMessage("boundBoxLY     : "+str(boundBoxLY)+"\n")
App.Console.PrintMessage("boundBoxLZ     : "+str(boundBoxLZ)+"\n\n")

App.Console.PrintMessage("boundBoxXMin   : "+str(boundBoxXMin)+"\n")
App.Console.PrintMessage("boundBoxYMin   : "+str(boundBoxYMin)+"\n")
App.Console.PrintMessage("boundBoxZMin   : "+str(boundBoxZMin)+"\n")
App.Console.PrintMessage("boundBoxXMax   : "+str(boundBoxXMax)+"\n")
App.Console.PrintMessage("boundBoxYMax   : "+str(boundBoxYMax)+"\n")
App.Console.PrintMessage("boundBoxZMax   : "+str(boundBoxZMax)+"\n\n")

App.Console.PrintMessage("boundBoxDiag   : "+str(boundBoxDiag)+"\n")
App.Console.PrintMessage("boundBoxCenter : "+str(boundBoxCenter)+"\n")

App.Console.PrintMessage("boundBox Center of Gravity : "+str(boundBoxCenterOfGravity )+"\n\n")

##################################################################################

# give the complete placement of the object selected
sel = FreeCADGui.Selection.getSelection()                                 # select object with getSelection()
pl = sel[0].Shape.Placement                                               # Placement Vector XYZ and Yaw-Pitch-Roll
App.Console.PrintMessage("Placement      : "+str(pl)+"\n")
##################################################################################

# give the placement Base (xyz) of the object selected
sel = FreeCADGui.Selection.getSelection()                                 # select object with getSelection()
pl = sel[0].Shape.Placement.Base                                          # Placement Vector XYZ
App.Console.PrintMessage("PlacementBase  : "+str(pl)+"\n\n")
##################################################################################
 
# give the placement Base (xyz) of the object selected
sel = FreeCADGui.Selection.getSelection()                                 # select object with getSelection()
oripl_X = sel[0].Placement.Base[0]                                        # decode Placement X
oripl_Y = sel[0].Placement.Base[1]                                        # decode Placement Y
oripl_Z = sel[0].Placement.Base[2]                                        # decode Placement Z

# same 
#oripl_X = sel[0].Placement.Base.x                                        # decode Placement X
#oripl_Y = sel[0].Placement.Base.y                                        # decode Placement Y
#oripl_Z = sel[0].Placement.Base.z                                        # decode Placement Z
 
App.Console.PrintMessage("oripl_X        : "+str(oripl_X)+"\n")
App.Console.PrintMessage("oripl_Y        : "+str(oripl_Y)+"\n")
App.Console.PrintMessage("oripl_Z        : "+str(oripl_Z)+"\n\n")
##################################################################################

# give the placement rotation of the object selected (x, y, z, angle rotation)
sel = FreeCADGui.Selection.getSelection()                                 # select object with getSelection()
rotation = sel[0].Placement.Rotation                                      # decode Placement Rotation
App.Console.PrintMessage("rotation              : "+str(rotation)+"\n\n")
##################################################################################

# give the placement rotation of the object selected (x, y, z, angle rotation)
sel = FreeCADGui.Selection.getSelection()                                 # select object with getSelection()
pl = sel[0].Shape.Placement.Rotation                                      # decode Placement Rotation other method
App.Console.PrintMessage("Placement Rot         : "+str(pl)+"\n\n")
##################################################################################

# give the rotation of the object selected (angle rotation)
sel = FreeCADGui.Selection.getSelection()                                 # select object with getSelection()
pl = sel[0].Shape.Placement.Rotation.Angle                                # decode Placement Rotation Angle
App.Console.PrintMessage("Placement Rot Angle   : "+str(pl)+"\n\n")
##################################################################################

# give the rotation.Q of the object selected (angle rotation in Radian) for convert: math.degrees(angleInRadian)
sel = FreeCADGui.Selection.getSelection()                                 # select object with getSelection()
Rot   = sel[0].Placement.Rotation.Q                                       # Placement Rotation Q
App.Console.PrintMessage("Rot           : "+str(Rot)+ "\n")
 
Rot_0 = sel[0].Placement.Rotation.Q[0]                                    # decode Placement Rotation Q
App.Console.PrintMessage("Rot_0         : "+str(Rot_0)+ " rad ,  "+str(180 * Rot_0 / 3.1416)+" deg "+"\n") # or math.degrees(angle)
 
Rot_1 = sel[0].Placement.Rotation.Q[1]                                    # decode Placement Rotation 1
App.Console.PrintMessage("Rot_1         : "+str(Rot_1)+ " rad ,  "+str(180 * Rot_1 / 3.1416)+" deg "+"\n") # or math.degrees(angle)
 
Rot_2 = sel[0].Placement.Rotation.Q[2]                                    # decode Placement Rotation 2
App.Console.PrintMessage("Rot_2         : "+str(Rot_2)+ " rad ,  "+str(180 * Rot_2 / 3.1416)+" deg "+"\n") # or math.degrees(angle)

Rot_3 = sel[0].Placement.Rotation.Q[3]                                    # decode Placement Rotation 3
App.Console.PrintMessage("Rot_3         : "+str(Rot_3)+"\n\n")

Rot_Axis = sel[0].Placement.Rotation.Axis                                 # Placement Rotation .Axis
App.Console.PrintMessage("Rot_Axis      : "+str(Rot_Axis)+ "\n")
 
Rot_Angle = sel[0].Placement.Rotation.Angle                               # Placement Rotation .Angle
App.Console.PrintMessage("Rot_Angle     : "+str(Rot_Angle)+ "\n\n")
##################################################################################

# give the rotation of the object selected toEuler (angle rotation in degrees)
sel = FreeCADGui.Selection.getSelection()                             # select object with getSelection()
angle   = sel[0].Shape.Placement.Rotation.toEuler()                   # angle Euler
App.Console.PrintMessage("Angle          : "+str(angle)+"\n")
Yaw   = sel[0].Shape.Placement.Rotation.toEuler()[0]                  # decode angle Euler Yaw (Z) lacet (alpha)
App.Console.PrintMessage("Yaw            : "+str(Yaw)+"\n")
Pitch = sel[0].Shape.Placement.Rotation.toEuler()[1]                  # decode angle Euler Pitch (Y) tangage (beta)
App.Console.PrintMessage("Pitch          : "+str(Pitch)+"\n")
Roll  = sel[0].Shape.Placement.Rotation.toEuler()[2]                  # decode angle Euler Roll (X) roulis (gamma)
App.Console.PrintMessage("Roll           : "+str(Roll)+"\n\n")

rot = App.Rotation()
rot.setYawPitchRoll(45,45,0)
print("Angle: ", rot.Angle)
print("Axis: ", rot.Axis)
print("RawAxis: ", rot.RawAxis)
print("YawPitchRoll: ", rot.getYawPitchRoll())
print("Rotation: ", rot)
print("Quaternion: ", rot.Q)

##################################################################################

# find Midpoint of the selected line
import Draft, DraftGeomUtils
sel = FreeCADGui.Selection.getSelection()
vecteur = DraftGeomUtils.findMidpoint(sel[0].Shape.Edges[0])              # find Midpoint
App.Console.PrintMessage(vecteur)
Draft.makePoint(vecteur)
##################################################################################

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Manual search of an element with label

# Extract the coordinate X,Y,Z and Angle giving the label (here "Cylindre")
App.Console.PrintMessage("Base.x       : "+str(FreeCAD.ActiveDocument.getObjectsByLabel("Cylindre")[0].Placement.Base.x)+"\n")
App.Console.PrintMessage("Base.y       : "+str(FreeCAD.ActiveDocument.getObjectsByLabel("Cylindre")[0].Placement.Base.y)+"\n")
App.Console.PrintMessage("Base.z       : "+str(FreeCAD.ActiveDocument.getObjectsByLabel("Cylindre")[0].Placement.Base.z)+"\n")
App.Console.PrintMessage("Base.Angle   : "+str(FreeCAD.ActiveDocument.getObjectsByLabel("Cylindre")[0].Placement.Rotation.Angle)+"\n\n")
##################################################################################

Note: Usually the angles are given in Radian. To convert them:

  1. angle in Degrees to Radians :
    • Angle in radian = pi * (angle in degree) / 180
    • Angle in radian = math.radians(angle in degree)
  2. angle in Radians to Degrees :
    • Angle in degree = 180 * (angle in radian) / pi
    • Angle in degree = math.degrees(angle in radian)

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Cartesian coordinates

This code displays the Cartesian coordinates of the selected item.

Change the value of "numberOfPoints" if you want a different number of points (precision)

numberOfPoints = 100                                                         # Decomposition number (or precision you can change)
selectedEdge = FreeCADGui.Selection.getSelectionEx()[0].SubObjects[0].copy() # select one element
points  = selectedEdge.discretize(numberOfPoints)                            # discretize the element
i=0
for p in points:                                                             # list and display the coordinates
    i+=1
    print( i, " X", p.x, " Y", p.y, " Z", p.z)

Other method display on "Int" and "Float"

import Part
from FreeCAD import Base

c=Part.makeCylinder(2,10)        # create the circle
Part.show(c)                     # display the shape

# slice accepts two arguments:
#+ the normal of the cross section plane
#+ the distance from the origin to the cross section plane. Here you have to find a value so that the plane intersects your object
s=c.slice(Base.Vector(0,1,0),0)  # 

# here the result is a single wire
# depending on the source object this can be several wires
s=s[0]

# if you only need the vertexes of the shape you can use
v=[]
for i in s.Vertexes:
    v.append(i.Point)

# but you can also sub-sample the section to have a certain number of points (int) ...
p1=s.discretize(20)
ii=0
for i in p1:
    ii+=1
    print( i )                                             # Vector()
    print( ii, ": X:", i.x, " Y:", i.y, " Z:", i.z )       # Vector decode
Draft.makeWire(p1,closed=False,face=False,support=None)    # to see the difference accuracy (20)

## uncomment to use
#import Draft
#Draft.downgrade(App.ActiveDocument.ActiveObject,delete=True)  # first transform the DWire in Wire         "downgrade"
#Draft.downgrade(App.ActiveDocument.ActiveObject,delete=True)  # second split the Wire in single objects   "downgrade"
#
##Draft.upgrade(FreeCADGui.Selection.getSelection(),delete=True) # to attach lines contiguous SELECTED use "upgrade"


# ... or define a sampling distance (float)
p2=s.discretize(0.5)
ii=0
for i in p2:
    ii+=1
    print( i )                                             # Vector()
    print( ii, ": X:", i.x, " Y:", i.y, " Z:", i.z )       # Vector decode 
Draft.makeWire(p2,closed=False,face=False,support=None)  # to see the difference accuracy (0.5)

## uncomment to use
#import Draft
#Draft.downgrade(App.ActiveDocument.ActiveObject,delete=True)  # first transform the DWire in Wire         "downgrade"
#Draft.downgrade(App.ActiveDocument.ActiveObject,delete=True)  # second split the Wire in single objects   "downgrade"
#
##Draft.upgrade(FreeCADGui.Selection.getSelection(),delete=True) # to attach lines contiguous SELECTED use "upgrade"

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Select all objects in the document

import FreeCAD
for obj in FreeCAD.ActiveDocument.Objects:
    print( obj.Name )                               # display the object Name
    objName = obj.Name
    obj = App.ActiveDocument.getObject(objName)
    Gui.Selection.addSelection(obj)                 # select the object

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Select a face of an object by Name object and Face number

# select one face of the object
import FreeCAD, Draft
App=FreeCAD
nameObject = "Box"                             # objet
faceSelect = "Face3"                           # face to selection
loch=App.ActiveDocument.getObject(nameObject)  # objet
Gui.Selection.clearSelection()                 # clear all selection
Gui.Selection.addSelection(loch,faceSelect)    # select the face specified
s = Gui.Selection.getSelectionEx()
#Draft.makeFacebinder(s)                       #

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Get the normal vector of a face of an object by Name object and number Face (r.Q)

## normal of a face by giving the number of the face and the name of the object (rotation Q with yL, uV) = (App.Vector (x, y, z), angle))
## normal d'une face en donnant le numero de la face et le nom de l'objet (rotation Q avec yL, uV) = (App.Vector(x, y, z),angle))
from FreeCAD import Vector

numero_Face = 2      # number of the face searched (begin 0, 1, 2, 3 .....)
nomObjet    = "Box"  # object name
yL = Gui.ActiveDocument.getObject(nomObjet).Object.Shape.Faces[numero_Face].CenterOfMass
uv = Gui.ActiveDocument.getObject(nomObjet).Object.Shape.Faces[numero_Face].Surface.parameter(yL)

nv = Gui.ActiveDocument.getObject(nomObjet).Object.Shape.Faces[numero_Face].normalAt(uv[0], uv[1])
direction = yL.sub(nv + yL)
print("Direction  : ",direction)

r = App.Rotation(App.Vector(0,0,1),direction)
print("Rotation   : ", r)
print("Rotation Q : ", r.Q)

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Get the normal vector of a face of an object by Name object and number of Face

numero_Face = 2       # number of the face searched (begin 0, 1, 2, 3 .....)
nomObjet    = "Box"   # object name
normal      = Gui.ActiveDocument.getObject(nomObjet).Object.Shape.Faces[numero_Face].normalAt(0,0)
print("Face"+str(numero_Face), " : ", normal)

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Get the normal vector of an object selected and number of Face

## normal of a face by giving the number of the face of the selected object
selectionObjects = FreeCADGui.Selection.getSelection()     
numero_Face = 3    # numero de la face recherchee
normal = selectionObjects[0].Shape.Faces[numero_Face].normalAt(0,0)
print(normal)
# selectionne la face numerotee
Gui.Selection.clearSelection()
Gui.Selection.addSelection(selectionObjects[0],"Face"+str(numero_Face))

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Get the normal vector on the surface

This example show how to find normal vector on the surface by find the u,v parameters of one point on the surface and use u,v parameters to find normal vector

def normal(self):
   ss=FreeCADGui.Selection.getSelectionEx()[0].SubObjects[0].copy()#SubObjects[0] is the edge list
   points  = ss.discretize(3.0)#points on the surface edge, 
             #this example just use points on the edge for example. 
             #However point is not necessary on the edge, it can be anywhere on the surface. 
   face=FreeCADGui.Selection.getSelectionEx()[0].SubObjects[1]
   for pp in points:
      pt=FreeCAD.Base.Vector(pp.x,pp.y,pp.z)#a point on the surface edge
      uv=face.Surface.parameter(pt)# find the surface u,v parameter of a point on the surface edge
      u=uv[0]
      v=uv[1]
      normal=face.normalAt(u,v)#use u,v to find normal vector
      print( normal)
      line=Part.makeLine((pp.x,pp.y,pp.z), (normal.x,normal.y,normal.z))
      Part.show(line)

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Get the normal vector of the face and create a line at the point mouse clicked

import PySide2
import Draft, Part, FreeCAD, FreeCADGui
import FreeCADGui as Gui
from FreeCAD import Base

FreeCAD.ActiveDocument.openTransaction("Tyty")    # memorise les actions (avec annuler restore)
selectedFace = FreeCADGui.Selection.getSelectionEx()[0].SubObjects[0]
pointClick = FreeCADGui.Selection.getSelectionEx()[0].PickedPoints[0]

########## section direction
plr = FreeCAD.Placement()
yL = pointClick
uv = selectedFace.Surface.parameter(yL)
nv = direction = selectedFace.normalAt(uv[0], uv[1])
r = App.Rotation(App.Vector(0,0,1),nv)
plr.Rotation.Q = r.Q
plr.Base = pointClick
########## section direction

line = Draft.make_wire([App.Vector(0.0,0.0,0.0), App.Vector(0.0,0.0,20.0)] )    # create line
line.Placement=plr
FreeCAD.ActiveDocument.recompute()
print( "Direction (radian) : ",direction )    # direction in radian

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Get the normal vector of a surface from a STL file

def getNormal(cb):
    if cb.getEvent().getState() == coin.SoButtonEvent.UP:
        pp = cb.getPickedPoint()
        if pp:
            vec = pp.getNormal().getValue()
            index = coin.cast(pp.getDetail(), "SoFaceDetail").getFaceIndex()
            print("Normal: {}, Face index: {}".format(str(vec), index))

from pivy import coin
meth=Gui.ActiveDocument.ActiveView.addEventCallbackPivy(coin.SoMouseButtonEvent.getClassTypeId(), getNormal)

you are done then run for quit:

Gui.ActiveDocument.ActiveView.removeEventCallbackPivy(coin.SoMouseButtonEvent.getClassTypeId(), meth)

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Create one object to the position of the Camera

# create one object of the position to camera with "getCameraOrientation()"
# the object is still facing the screen
import Draft

plan = FreeCADGui.ActiveDocument.ActiveView.getCameraOrientation()
plan = str(plan)
###### extract data
a    = ""
for i in plan:
    if i in ("0123456789e.- "):
        a+=i
a = a.strip(" ")
a = a.split(" ")
####### extract data

#print( a)
#print( a[0])
#print( a[1])
#print( a[2])
#print( a[3])

xP = float(a[0])
yP = float(a[1])
zP = float(a[2])
qP = float(a[3])

pl = FreeCAD.Placement()
pl.Rotation.Q = (xP,yP,zP,qP)         # rotation of object
pl.Base = FreeCAD.Vector(0.0,0.0,0.0) # here coordinates XYZ of Object
rec = Draft.makeRectangle(length=10.0,height=10.0,placement=pl,face=False,support=None) # create rectangle
#rec = Draft.makeCircle(radius=5,placement=pl,face=False,support=None)                   # create circle
print( rec.Name)

here same code simplified

import Draft
pl = FreeCAD.Placement()
pl.Rotation = FreeCADGui.ActiveDocument.ActiveView.getCameraOrientation()
pl.Base = FreeCAD.Vector(0.0,0.0,0.0)
rec = Draft.makeRectangle(length=10.0,height=10.0,placement=pl,face=False,support=None)

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Read And write one Expression

import Draft
doc = FreeCAD.ActiveDocument

pl=FreeCAD.Placement()
pl.Rotation.Q=(0.0,-0.0,-0.0,1.0)
pl.Base=FreeCAD.Vector(0.0,0.0,0.0)
obj = Draft.makeCircle(radius=1.0,placement=pl,face=False,support=None)    # create circle

print( obj.PropertiesList )                                                  # properties disponible in the obj

doc.getObject(obj.Name).setExpression('Radius', u'2mm')                    # modify the radius
doc.getObject(obj.Name).setExpression('Placement.Base.x', u'10mm')         # modify the placement 
doc.getObject(obj.Name).setExpression('FirstAngle', u'90')                 # modify the first angle
doc.recompute()

expressions = obj.ExpressionEngine                                         # read the expression list
print( expressions)

for i in expressions:                                                      # list and separate the data expression
    print( i[0]," = ",i[1])

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Create a Sketch on a Surface in PartDesign

This snippet can be useful, if you want to create a sketch on a surface in PartDesign from inside a macro. Note, that body might be None, if no active body is selected and that the Selection might be empty.

body = Gui.ActiveDocument.ActiveView.getActiveObject('pdbody')
first_selection = Gui.Selection.getSelectionEx()[0]

feature = first_selection.Object
face_name = first_selection.SubElementNames[0]

sketch = App.ActiveDocument.addObject('Sketcher::SketchObject','MySketch')
body.addObject(sketch)
sketch.MapMode = 'FlatFace'
sketch.Support = (feature, face_name)

App.ActiveDocument.recompute()

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How to Simulate a Mouse Click at a given Coordinate

The position is relative to the GL widget. See forum thread.

from PySide2 import QtCore
from PySide2 import QtGui
from PySide2 import QtWidgets

mw = Gui.getMainWindow()
gl = mw.findChild(QtWidgets.QOpenGLWidget)
me = QtGui.QMouseEvent(QtCore.QEvent.MouseButtonRelease, QtCore.QPoint(800,300), QtCore.Qt.LeftButton, QtCore.Qt.LeftButton, QtCore.Qt.NoModifier)

app = QtWidgets.QApplication.instance()
app.sendEvent(gl, me)

If you have a 3d point and want to get the 2d point on the opengl widget then use this:

from PySide2 import QtCore
from PySide2 import QtGui
from PySide2 import QtWidgets
from FreeCAD import Base

x, y, z, = 10,10,10
v = Gui.ActiveDocument.ActiveView
point3d = Base.Vector(x, y, z)
point2d = v.getPointOnScreen(point3d)
size = v.getSize()
coordX = point2d[0]
coordY = size[1] - point2d[1]

me = QtGui.QMouseEvent(QtCore.QEvent.MouseButtonRelease, QtCore.QPoint(coordX,coordY), QtCore.Qt.LeftButton, QtCore.Qt.LeftButton, QtCore.Qt.NoModifier)

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How to create a face with holes using Python API

This snippet demonstrates how to create a face with internal holes through the Python API. See forum thread.

import FreeCAD, Part

# Create poles that will define the Face
pts = [(-2, 2, 0),
       (0, 2, 1),
       (2, 2, 0),
       (2, -2, 0),
       (0, -2, 1),
       (-2, -2, 0)]

bs = Part.BSplineCurve()
bs.buildFromPoles(pts, True)  # True makes this periodic/closed

# Make the Face from the curve
myFace = Part.makeFilledFace([bs.toShape()])

# Create geometry for holes that will be cut in the surface
hole0 = Part.Geom2d.Circle2d(FreeCAD.Base.Vector2d(0,0), 1.0)
hole1 = Part.Geom2d.Circle2d(FreeCAD.Base.Vector2d(0,1.5), 0.1)

edge0 = hole0.toShape(myFace)
edge1 = hole1.toShape(myFace)
wireb = Part.Wire(bs.toShape())
wire0 = Part.Wire(edge0)
wire1 = Part.Wire(edge1)

# Cut holes in the face
myFace.cutHoles([wire0])
myFace.validate()  # This is required
myFace.cutHoles([wire1])
myFace.validate()

Part.show(myFace)

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Close and restart FreeCAD

import PySide2 
from PySide2 import QtWidgets, QtCore, QtGui

def restart_freecad():
    """Shuts down and restarts FreeCAD"""

    args = QtWidgets.QApplication.arguments()[1:]
    if FreeCADGui.getMainWindow().close():
        QtCore.QProcess.startDetached(
            QtWidgets.QApplication.applicationFilePath(), args
        )

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Coin3D

See Coin3d snippets

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Related

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