Piesă
Std Part |
poziția meniului |
---|
None |
Ateliere |
All |
scurtătură |
nici unul |
Prezentat în versiune |
0.17 |
A se vedea, de asemenea, |
Std Group, PartDesign Body |
Descriere
Part(piesa) este un container de uz general care ține împreună un grup de obiecte astfel încât ele pot fi mișcate ca o unitate. Piesa poate conține majoritatea obiectelor FreeCAD, cum ar fi corpurile PartDesign, obiecte ale atelierului Part, obiecte Mesh etc.
Piesa oferă un sistem local de coordonate la care se pot atașa schițe și alte obiecte.
Although it is primarily intended for solid bodies, the Std Part can be used to manage any object that has a Placement property, so it can also contain Mesh Features, sketches, and other objects derived from the App GeoFeature class.
O Piesă se află în bara de instrumente Structure care este afișată în toate atelierele de lucru.
The Std Part tool is not defined by a particular workbench, but by the base system, thus it is found in the structure toolbar that is available in all workbenches. To group objects arbitrarily without considering their position, use Std Group; this object does not affect the placements of the elements that it contains, it is essentially just a folder that is used to keep the Tree view organized.
Left: elements inside a Std Part in the Tree view. Right: objects positioned in space, referred to the Origin of the Std Part.
Cum se folosește
- Press the Create part button in the toolbar. The Part automatically becomes active.
- Double-click the Part in the Model tree to activate or deactivate it.
- To add objects to a Part, drag & drop them over the Part in the Model tree.
- To remove objects from a Part, drag & drop them out of the Part and on the document label at the top of the Model tree.
Notes
- An object can only belong to a single Part.
- 3D operations like Part Boolean cannot be applied to Parts. For example, you cannot select two Parts, and perform a Part Fuse or Part Cut.
Proprietăți
The Std Part, internally called App Part (App::Part
class), is derived from the App GeoFeature (App::GeoFeature
class) and inherits all its properties. It also has several additional properties. Notably properties that help it manage information in the context of an assembly, for example, DateType, DateId, DateLicense, DateLicenseURL and DateGroup.
These are the properties available in the property editor. Hidden properties can be shown by using the Show all command in the context menu of the property editor.
Data
Base
- DateId: ID (Part number) of the item. This field is optional.
- DateLicense: the license under which the part is released.
- DateLicense URL: the Web address where the terms license can be found.
- DatePlacement: specifies the orientation and position of the Part in the 3D space. See Placement.
- DateLabel: the Label is the name given to the operation. This name can be changed at your convenience.
- DateGroup: lists the referenced objects.
View
Display Options
- VizualizareDisplay Mode (
Enumeration
):Group
. - VizualizareShow In Tree (
Bool
): if it istrue
, the object appears in the Tree view. Otherwise, it is set as invisible. - VizualizareVisibility (
Bool
): if it istrue
, the object appears in the 3D view; otherwise it is invisible. By default this property can be toggled on and off by pressing the Space bar in the keyboard.
Selection
- VizualizareOn Top When Selected (
Enumeration
):Disabled
(default),Enabled
,Object
,Element
. - VizualizareSelection Style (
Enumeration
):Shape
(default),BoundBox
. If the option isShape
, the entire shape (vertices, edges, and faces) will be highlighted in the 3D view; if it isBoundBox
only the bounding box will be highlighted.
Detailed explanation
Status Active
A FreeCAD document can contain multiple Parts. Only one Part can be active at a time. An active Part will be displayed in the tree with a light blue background color.
An open document can contain multiple Parts. But only one Part can be active. The active Part is displayed in the tree view with the background color specified by the Active container value in the preferences editor (by default, light blue). It will also be shown with bold text.
To activate or de-activate a Part:
- Double click on it on the Tree view, or
- Open the context menu (right click) and select Toggle active part.
Document with two Std Parts, of which the second one is active.
Origini
The Origin consists of the three standard axes (X, Y, Z) and three standard planes (XY, XZ and YZ). Sketches can be attached to these planes. All elements inside the Part are referenced to the Part's Origin; which means that the Part can be moved and rotated in reference to the global coordinate system without affecting the placement of elements inside it.
The Origin consists of the three standard axes (X, Y, Z) and three standard planes (XY, XZ and YZ). Sketches and other objects can be attached to these elements when creating them.
Left: Part Origin in the Tree view. Right: representation of the Origin elements in the 3D view.
Note: the Origin is an App Origin object (App::Origin
class), while the axes and planes are objects of type App::Line
and App::Plane
respectively. Each of these elements can be hidden and unhidden individually with the Space bar; this is useful to choose the correct reference when creating other objects.
Note 2: all elements inside the Part are referenced to the Part's Origin which means that the Part can be moved and rotated in reference to the global coordinate system without affecting the placement of the elements inside.
Managementul Vizibilității
The Part's visibility supersedes the visibility of any object it contains. If the Part is hidden, the objects it contains will be hidden as well, even if their visibility is set to true. Multiple objects inside a Part can be visible at a time.
The Part's visibility supersedes the visibility of any object it contains. If the Part is hidden, the objects it contains will be hidden as well, even if their individual VizualizareVisibility property is set to true
. If the Part is visible, then each object's VizualizareVisibility determines whether the object is shown or not.
The visibility of the Std Part determines whether the objects grouped under it are shown in the 3D view or not. Left: the Part is hidden, so none of the objects will be shown in the 3D view. Right: the Part is visible, so each object controls its own visibility.
Scripting
See also: FreeCAD Scripting Basics and scripted objects.
See Part Feature for the general information on adding objects to the document.
A Std Part (App Part) is created with the addObject()
method of the document. Once a Part exists, other objects can be added to it with the addObject()
or addObjects()
methods.
import FreeCAD as App
doc = App.newDocument()
part = App.ActiveDocument.addObject("App::Part", "Part")
obj1 = App.ActiveDocument.addObject("PartDesign::Body", "Body")
obj2 = App.ActiveDocument.addObject("Part::Box", "Box")
part.addObjects([obj1, obj2])
App.ActiveDocument.recompute()
You cannot create a scripted App::Part
. However, you can add App::Part
behavior to a scripted Part::FeaturePython
object by using the following code:
class MyGroup(object):
def __init__(self, obj=None):
self.Object = obj
if obj:
self.attach(obj)
def dumps(self):
return
def loads(self, _state):
return
def attach(self, obj):
obj.addExtension("App::OriginGroupExtensionPython")
obj.Origin = FreeCAD.ActiveDocument.addObject("App::Origin", "Origin")
def onDocumentRestored(self, obj):
self.Object = obj
class ViewProviderMyGroup(object):
def __init__(self, vobj=None):
if vobj:
vobj.Proxy = self
self.attach(vobj)
else:
self.ViewObject = None
def attach(self, vobj):
vobj.addExtension("Gui::ViewProviderOriginGroupExtensionPython")
self.ViewObject = vobj
def dumps(self):
return None
def loads(self, _state):
return None
App.ActiveDocument.addObject("Part::FeaturePython",
"Group",
group.MyGroup(),
group.ViewProviderMyGroup(),
True)
- File: New, Open, Close, Close All, Save, Save As, Save a Copy, Save All, Revert, Import, Export,Merge project, Project information, Print, Print preview, Export PDF, Recent files, Exit
- Edit: Undo, Redo, Cut, Copy, Paste, Duplicate selection, Refresh, Box selection, Box element selection, Select All, Delete, Send to Python Console, Placement, Transform, Alignment, Toggle Edit mode, Edit mode, Preferences
- View:
- Miscellaneous: Create new view, Orthographic view, Perspective view, Fullscreen, Bounding box, Toggle axis cross, Clipping plane, Texture mapping, Toggle navigation/Edit mode, Appearance, Random color, Workbench, Status bar
- Standard views: Fit all, Fit selection, Isometric, Dimetric, Trimetric, Home, Front, Top, Right, Rear, Bottom, Left, Rotate Left, Rotate Right
- Freeze display: Save views, Load views, Freeze view, Clear views
- Draw style: As is, Points, Wireframe, Hidden line, No shading, Shaded, Flat lines
- Stereo: Stereo red/cyan, Stereo quad buffer, Stereo Interleaved Rows, Stereo Interleaved Columns, Stereo Off, Issue camera position
- Zoom: Zoom In, Zoom Out, Box zoom
- Document window: Docked, Undocked, Fullscreen
- Visibility: Toggle visibility, Show selection, Hide selection, Select visible objects, Toggle all objects, Show all objects, Hide all objects, Toggle selectability
- Toolbars: File, Edit, Clipboard, Workbench, Macro, View, Structure, Help
- Panels: Tree view, Property view, Selection view, Tasks, Python console, DAG view, Model, Report view
- Link navigation: Go to linked object, Go to the deepest linked object, Select all links
- Tree view actions: Sync view, Sync selection, Sync placement, Pre-selection, Record selection, Single document, Multi document, Collapse/Expand, Initiate dragging, Go to selection, Selection Back, Selection Forward
- Tools: Edit parameters, Save image, Load image, Scene inspector, Dependency graph, Document utility, Measure, Add text document, View turntable, Units calculator, Customize, Addon manager
- Macro: Macro recording, Macros, Recent macros, Execute macro, Attach to remote debugger, Debug macro, Stop debugging, Step over, Step into, Toggle breakpoint
- Help: Help, FreeCAD Website, Donate, Users documentation, Python scripting documentation, Automatic Python modules documentation, FreeCAD Forum, FreeCAD FAQ, Report a bug, About FreeCAD, What's This
- Getting started
- Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
- Basics: About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties, Help FreeCAD, Donate
- Help: Tutorials, Video tutorials
- Workbenches: Std Base, Assembly, BIM, CAM, Draft, FEM, Inspection, Material, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework
- Hubs: User hub, Power users hub, Developer hub