Macro Draft Circle 3 Points: Difference between revisions
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{{Macro |
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{{Macro|Icon=Macro_Draft_Circle_3_Points|Name=Macro_Draft_Circle_3_Points|Description=Creates a circle from 3 selected points.|Author=Mario52}} |
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|Name=Macro Make Circle 3 Points |
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|Icon=Macro_Make_Circle_3_Points.png |
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|Description=This macro creates a circle on 3 selected points. The points can be objects such as cubes, cylinder, then selected coordinates will be the centre of these forms. |
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|Author=Mario52 |
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|Version=01.00 |
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|Date=2013-03-11 |
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|FCVersion=All |
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|Download=[https://www.freecadweb.org/wiki/images/c/c7/Macro_Make_Circle_3_Points.png ToolBar Icon] |
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}} |
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==Description== <!--T:2--> |
==Description== <!--T:2--> |
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This macro creates a circle on 3 selected points. The points can be objects such as cubes, cylinder, then selected coordinates will be the centre of these forms. |
This macro creates a circle on 3 selected points. The points can be objects such as cubes, cylinder, then selected coordinates will be the centre of these forms. |
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[[File:Macro Draft Circle 3 Points01.png|480px |
[[File:Macro Draft Circle 3 Points01.png|480px]] |
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{{Caption|Circle built on 3 selected points}} |
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{{clear}} |
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== |
==Usage== <!--T:3--> |
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Select 3 points, or forms in the 3D view and run the macro.<br /> |
Select 3 points, or forms in the 3D view and run the macro.<br /> |
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If the shape is a line, the coordinate will be the center of the line. |
If the shape is a line, the coordinate will be the center of the line. |
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==Script== <!--T:5--> |
==Script== <!--T:5--> |
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ToolBar Icon [[Image:Macro_Make_Circle_3_Points.png]] |
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{{MacroCode|code= |
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# -*- coding: utf-8 -*- |
# -*- coding: utf-8 -*- |
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# créer un cercle à partir de 3 points sélectionnés sur le plan X,Y |
# créer un cercle à partir de 3 points sélectionnés sur le plan X,Y |
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FreeCAD.Console.PrintError("Sélectionnez 3 points et recommencez\r\n") |
FreeCAD.Console.PrintError("Sélectionnez 3 points et recommencez\r\n") |
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}} |
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</syntaxhighlight> |
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==Improved version== <!--T:6--> |
==Improved version== <!--T:6--> |
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In addition to the previous features, this example is used to align an orthogonal circle on each shape in the selection, and the plan "'XY, YZ, XZ ' ' chosen.<br /> |
In addition to the previous features, this example is used to align an orthogonal circle on each shape in the selection, and the plan "'XY, YZ, XZ ' ' chosen.<br /> |
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{{MacroCode|code= |
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<syntaxhighlight> |
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# Change the values here below |
# Change the values here below |
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# mode by default vueChoix = 0 and alignerSur = 0 |
# mode by default vueChoix = 0 and alignerSur = 0 |
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alignerSur=0 # Aligns the circle shaped the choice (1,2 or 3) or Z = 0 |
alignerSur=0 # Aligns the circle shaped the choice (1,2 or 3) or Z = 0 |
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afficherPoint=1 # Displays the center point of the circle |
afficherPoint=1 # Displays the center point of the circle |
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}} |
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</syntaxhighlight> |
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{{MacroCode|code= |
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<syntaxhighlight> |
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# -*- coding: utf-8 -*- |
# -*- coding: utf-8 -*- |
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# créer un cercle à partir de 3 points séléctionnés |
# créer un cercle à partir de 3 points séléctionnés |
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# à la coordonnée d'une des trois formes sélectionnées au choix |
# à la coordonnée d'une des trois formes sélectionnées au choix |
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# et création du point central O/N |
# et création du point central O/N |
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# 04/03/2013 |
# 04/03/2013 , 07/09/2018 replace PyQt4 to PySide |
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# la formule provient de |
# la formule provient de |
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# http://www-obs.univ-lyon1.fr/labo/fc/Ateliers_archives/ateliers_2005-06/cercle_3pts.pdf |
# http://www-obs.univ-lyon1.fr/labo/fc/Ateliers_archives/ateliers_2005-06/cercle_3pts.pdf |
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from math import sqrt, pi, sin, cos |
from math import sqrt, pi, sin, cos |
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from FreeCAD import Base |
from FreeCAD import Base |
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from |
from PySide import QtCore, QtGui |
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def errorDialog(msg): |
def errorDialog(msg): |
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#FreeCAD.Console.PrintError("Select 3 points and repeatr\n") |
#FreeCAD.Console.PrintError("Select 3 points and repeatr\n") |
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}} |
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</syntaxhighlight> |
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==Credits== <!--T:9--> |
==Credits== <!--T:9--> |
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The genesis of the macro ''' |
The genesis of the macro '''Draft Circle 3 Points''' [http://forum.freecadweb.org/viewtopic.php?f=12&t=3696&sid=17886f953113e162dc9a4a843e1fce94 on the forum (PYTHON) coordonnées d'un point] helped flachyjoe thanks.<br /> |
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The formula comes from [http://www-obs.univ-lyon1.fr/labo/fc/Ateliers_archives/ateliers_2005-06/cercle_3pts.pdf cercle_3pts.pdf] and used with the kind permission of its author. |
The formula comes from [http://www-obs.univ-lyon1.fr/labo/fc/Ateliers_archives/ateliers_2005-06/cercle_3pts.pdf cercle_3pts.pdf] and used with the kind permission of its author. |
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Latest revision as of 10:15, 23 May 2020
Description |
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This macro creates a circle on 3 selected points. The points can be objects such as cubes, cylinder, then selected coordinates will be the centre of these forms. Macro version: 01.00 Last modified: 2013-03-11 FreeCAD version: All Download: ToolBar Icon Author: Mario52 |
Author |
Mario52 |
Download |
ToolBar Icon |
Links |
Macros recipes How to install macros How to customize toolbars |
Macro Version |
01.00 |
Date last modified |
2013-03-11 |
FreeCAD Version(s) |
All |
Default shortcut |
None |
See also |
None |
Description
This macro creates a circle on 3 selected points. The points can be objects such as cubes, cylinder, then selected coordinates will be the centre of these forms.
Circle built on 3 selected points
Usage
Select 3 points, or forms in the 3D view and run the macro.
If the shape is a line, the coordinate will be the center of the line.
Options
If the selected objects are on different planes, (xy Z10, xy Z2, xy Z5) the circle will be built on the map x,y Z=0.
If all of the selected objects have their equal Z coordinates (xy Z5, xy Z5, xy Z5), circle will be built to the plan x,y Z=5.
Script
Draft_Circle_3_Points.FCMacro
# -*- coding: utf-8 -*- # créer un cercle à partir de 3 points sélectionnés sur le plan X,Y # 04/03/2013 # la formule provient de # http://www-obs.univ-lyon1.fr/labo/fc/Ateliers_archives/ateliers_2005-06/cercle_3pts.pdf # lire la note dans le pdf, sur l'ordre de sélection des points, # si la formule renvoie une erreur (exemple les 3 points dans le même alignement) # import Draft, Part, FreeCAD, math, PartGui, FreeCADGui from math import sqrt, pi, sin, cos from FreeCAD import Base # prendre les objets sélectionnés sel = FreeCADGui.Selection.getSelection() i=0 centreX=0 centreY=0 rayon=0 # S'il y a 3 points sélectionnés alors.. if len(sel)==3 : i=0 ta=[0,0,0,0,0,0,0,0,0] for obj in sel: x=(obj.Shape.BoundBox.Center) ta[i+0]=(x.x) ta[i+1]=(x.y) ta[i+2]=(x.z) i=i+3 # Affectation des variables x_point_1=ta[0] y_point_1=ta[1] z_point_1=ta[2] x_point_2=ta[3] y_point_2=ta[4] z_point_2=ta[5] x_point_3=ta[6] y_point_3=ta[7] z_point_3=ta[8] # Calcul des coordonnées du centre du cercle centreX =((x_point_3**2-x_point_2**2+y_point_3**2-y_point_2**2)/(2*(y_point_3-y_point_2))-(x_point_2**2-x_point_1**2+y_point_2**2-y_point_1**2)/(2*(y_point_2-y_point_1)))/((x_point_3-x_point_2)/(y_point_3-y_point_2)-(x_point_2-x_point_1)/(y_point_2-y_point_1)) centreY =-(x_point_2-x_point_1)/(y_point_2-y_point_1)*centreX+(x_point_2**2-x_point_1**2+y_point_2**2-y_point_1**2)/(2*(y_point_2-y_point_1)) rayon =sqrt((x_point_1-centreX)**2+(y_point_1-centreY)**2) # Définition de la coordonnée Z # Si toutes les coordonnées Z sont égales le centreZ s'aligne à la coordonnée Z if z_point_1==z_point_2 and z_point_2==z_point_3: centreZ=z_point_1 else: # Si une coordonnée est différente alors Z=0 centreZ=0 # Création du cercle pl=FreeCAD.Placement() pl.Rotation.Q=(0.0,-0.0,-0.0,1.0) pl.Base=FreeCAD.Vector(centreX,centreY,centreZ) Draft.makeCircle((rayon),placement=pl,face=False,support=None) # Affiche le résultat dans la Vue rapport de FreeCAD FreeCAD.Console.PrintMessage("Coordonnée X : "+str(centreX)+"\r\n") FreeCAD.Console.PrintMessage("Coordonnée Y : "+str(centreY)+"\r\n") FreeCAD.Console.PrintMessage("Coordonnée Z : "+str(centreZ)+"\r\n") FreeCAD.Console.PrintMessage("Rayon : "+str(rayon )+"\r\n") else: # Si la condition n'est pas remplie, recommencer FreeCAD.Console.PrintError("Sélectionnez 3 points et recommencez\r\n")
Improved version
In addition to the previous features, this example is used to align an orthogonal circle on each shape in the selection, and the plan "'XY, YZ, XZ ' ' chosen.
The circle takes the color of the axis dedicated regardless of current color, and the center point of the circle is drawn (option O/N).
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Cercle circonscrit sur 3 formes,
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de manière orthogonale sur la forme choisie
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The settings to change.
# Change the values here below # mode by default vueChoix = 0 and alignerSur = 0 vueChoix=0 # choice of the top view = 1 XY, view Front = 2 ZX, Right view = 3 ZY alignerSur=0 # Aligns the circle shaped the choice (1,2 or 3) or Z = 0 afficherPoint=1 # Displays the center point of the circle
# -*- coding: utf-8 -*- # créer un cercle à partir de 3 points séléctionnés # avec comme options le cercle peut être construit sur un plans au choix # à la coordonnée d'une des trois formes sélectionnées au choix # et création du point central O/N # 04/03/2013 , 07/09/2018 replace PyQt4 to PySide # la formule provient de # http://www-obs.univ-lyon1.fr/labo/fc/Ateliers_archives/ateliers_2005-06/cercle_3pts.pdf # lire la note dans le pdf, sur l'ordre de sélection des points, # si la formule renvoie une erreur (exemple les 3 points dans le même alignement) # import Draft, Part, FreeCAD, math, PartGui, FreeCADGui from math import sqrt, pi, sin, cos from FreeCAD import Base from PySide import QtCore, QtGui def errorDialog(msg): # Create a simple dialog QMessageBox # The first argument indicates the icon used: one of QtGui.QMessageBox.{NoIcon, Information, Warning, Critical, Question} diag = QtGui.QMessageBox(QtGui.QMessageBox.Critical,u"Error Message",msg) diag.setWindowModality(QtCore.Qt.ApplicationModal) diag.exec_() def affiche(x,y,z,rayon,r,v,b,afficherPoint): pl.Base=FreeCAD.Vector(x,y,z) Draft.makeCircle((rayon),placement=pl,face=False,support=None) FreeCADGui.activeDocument().activeObject().LineColor = (r,v,b) if afficherPoint==1: Draft.makePoint(x,y,z) diag = QtGui.QMessageBox(QtGui.QMessageBox.Information,u"Coordinates",u"Coordinates X : "+str(x)+"\r\n"+u"Coordinates Y : "+str(y)+"\n"+u"Coordinates Z : "+str(z)+"\nRayon\t : "+str(rayon)) diag.setWindowModality(QtCore.Qt.ApplicationModal) diag.exec_() # prendre les objets selectionnes sel = FreeCADGui.Selection.getSelection() i=0 centreX=0;centreY=0;rayon=0 # S'il y a 3 points sélectionnés alors.. if len(sel)==3 : i=0 ta=[0,0,0,0,0,0,0,0,0] for obj in sel: x=(obj.Shape.BoundBox.Center) ta[i+0]=(x.x) ta[i+1]=(x.y) ta[i+2]=(x.z) i=i+3 # Change the values here below # mode by default vueChoix = 0 and alignerSur = 0 vueChoix=0 # choice of the top view = 1 XY, view Front = 2 ZX, Right view = 3 ZY alignerSur=0 # Aligns the circle shaped the choice (1,2 or 3) or Z = 0 afficherPoint=1 # Displays the center point of the circle # Affectation des variables if vueChoix==3: # View of right ZY (Red) z_point_1=ta[0] x_point_1=ta[1] y_point_1=ta[2] z_point_2=ta[3] x_point_2=ta[4] y_point_2=ta[5] z_point_3=ta[6] x_point_3=ta[7] y_point_3=ta[8] elif vueChoix==2: # Front view ZX (Green) y_point_1=ta[0] z_point_1=ta[1] x_point_1=ta[2] y_point_2=ta[3] z_point_2=ta[4] x_point_2=ta[5] y_point_3=ta[6] z_point_3=ta[7] x_point_3=ta[8] else: # Top view XY (blue) x_point_1=ta[0] y_point_1=ta[1] z_point_1=ta[2] x_point_2=ta[3] y_point_2=ta[4] z_point_2=ta[5] x_point_3=ta[6] y_point_3=ta[7] z_point_3=ta[8] # Calculation of coordinates of the center of the circle try: centreX =((x_point_3**2-x_point_2**2+y_point_3**2-y_point_2**2)/(2*(y_point_3-y_point_2))-(x_point_2**2-x_point_1**2+y_point_2**2-y_point_1**2)/(2*(y_point_2-y_point_1)))/((x_point_3-x_point_2)/(y_point_3-y_point_2)-(x_point_2-x_point_1)/(y_point_2-y_point_1)) centreY =-(x_point_2-x_point_1)/(y_point_2-y_point_1)*centreX+(x_point_2**2-x_point_1**2+y_point_2**2-y_point_1**2)/(2*(y_point_2-y_point_1)) rayon =sqrt((x_point_1-centreX)**2+(y_point_1-centreY)**2) except: errorDialog(u"Impossible calculation too aligned elements") else: #finally: sera TOUJOURS exécuté # Definition of the coordinate Z centreZ=0 # Création du cercle pl=FreeCAD.Placement() if vueChoix==1: # Plan XY Dessus pl.Rotation.Q=(0,0,0,1.0) if alignerSur==1: affiche(centreX,centreY,z_point_1,rayon,0.0,0.0,1.0,afficherPoint) elif alignerSur==2: affiche(centreX,centreY,z_point_2,rayon,0.0,0.0,1.0,afficherPoint) elif alignerSur==3: affiche(centreX,centreY,z_point_3,rayon,0.0,0.0,1.0,afficherPoint) elif vueChoix==2: # Plan XZ Face pl.Rotation.Q=(1,0,0,1.0) if alignerSur==1: affiche(centreY,z_point_1,centreX,rayon,0.0,1.0,0.0,afficherPoint) elif alignerSur==2: affiche(centreY,z_point_2,centreX,rayon,0.0,1.0,0.0,afficherPoint) elif alignerSur==3: affiche(centreY,z_point_3,centreX,rayon,0.0,1.0,0.0,afficherPoint) elif vueChoix==3: # Plan YZ Droite pl.Rotation.Q=(0,1,0,1.0) if alignerSur==1: affiche(z_point_1,centreX,centreY,rayon,1.0,0.0,0.0,afficherPoint) elif alignerSur==2: affiche(z_point_2,centreX,centreY,rayon,1.0,0.0,0.0,afficherPoint) elif alignerSur==3: affiche(z_point_3,centreX,centreY,rayon,1.0,0.0,0.0,afficherPoint) else: # modifier pour avoir XYZ # si les coordonnées Z sont égales alors le cercle s'aligne à Z if z_point_1==z_point_2 and z_point_2==z_point_3: centreZ=z_point_1 affiche(centreX,centreY,z_point_1,rayon,0.0,0.0,0.0,afficherPoint) else: # Si une coordonnée est différente alors Z=0 affiche(centreX,centreY,0,rayon,0.0,0.0,0.0,afficherPoint) else: # Si la condition n'est pas remplie, recommencer errorDialog(u"Select 3 points and repeat") #FreeCAD.Console.PrintError("Select 3 points and repeatr\n")
Anaglyphe
Here an Anaglyph view that allows you to see two different positions of the view by using glasses with filters red and Cyan .
Watch alternately with the left eye and the right eye to see the views separately.
Credits
The genesis of the macro Draft Circle 3 Points on the forum (PYTHON) coordonnées d'un point helped flachyjoe thanks.
The formula comes from cercle_3pts.pdf and used with the kind permission of its author.