Part Feature/de: Difference between revisions
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<span id="Introduction"></span> |
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== |
==Einleitung== |
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Jedes mit dem [[Part_Workbench/de|Part Arbeitsbereich]] erstellte Objekt ist im Wesentlichen ein [[Part Feature/de|Part Formelement]]. |
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[[File:FreeCAD_core_objects.svg|800px]] |
[[File:FreeCAD_core_objects.svg|800px]] |
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{{Caption|Vereinfachtes Diagramm der Beziehungen zwischen den Kernobjekten |
{{Caption|Vereinfachtes Diagramm der Beziehungen zwischen den Kernobjekten in FreeCAD}} |
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<span id="Usage"></span> |
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==Anwendung== |
==Anwendung== |
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Das [[Part Feature/de|Part |
Das [[Part Feature/de|Part-Formelement]] ist ein internes Objekt, kann also nicht von der grafischen Oberfläche aus erstellt werden, sondern nur von der [[Python_console/de|Python-Konsole]] aus, wie im Abschnitt [[#Skripten|Skripten]] beschrieben. |
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Das {{incode|Part::Feature}} wird im Arbeitsbereich [[Part Workbench/de|Part]] definiert, kann aber als Basisklasse für [[scripted objects/de|skriptgenerierte Objekte]] in allen [[Workbenches/de|Arbeitsbereichen]] verwendet werden, die 2D- und 3D-Geometrieformen erstellen. Im Wesentlichen sind alle im Arbeitsbereich [[Part Workbench/de|Part]] erstellten Objekte Instanzen eines {{incode|Part::Feature}}s. |
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{{incode|Part::Feature}} ist auch die Elternklasse des [[PartDesign Body/de|PartDesign |
Das {{incode|Part::Feature}} ist auch die Elternklasse des [[PartDesign Body/de|PartDesign Körpers]], der [[PartDesign_Feature/de|PartDesign Formelemente]] und der [[Part_Part2DObject/de|Part Part2DObjekte]], die auf 2D-(planare) Formen spezialisiert ist. |
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Arbeitsbereiche können diesem Grundelement weitere Eigenschaften hinzufügen, um ein Objekt mit komplexem Verhalten zu erzeugen. |
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<span id="Properties"></span> |
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==Eigenschaften== |
==Eigenschaften== |
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Eine [[Part_Feature/de|Part Formelement]] ({{incode|Part::Feature}} Klasse) wird von der Basis [[App_GeoFeature/de|App GeoFormelement]] ({{incode|App::GeoFeature}} Klasse) abgeleitet, daher teilt sie alle Eigenschaften der letzteren. |
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Das [[Part_Feature/de|Part-Formelement]] (Klasse {{incode|Part::Feature}}) wird von dem Grundelement [[App_GeoFeature/de|App GeoFeature]] (Klasse {{incode|App::GeoFeature}}) abgeleitet, und erbt alle seine Eigenschaften. Es besitzt auch einige zusätzliche Eigenschaften. Hervorzuheben ist eine {{PropertyData/de|Shape}}, die die [[Part_TopoShape/de|Part TopoForm]] des Objekts speichert. Dies ist die Geometrie, die in der [[3D_view/de|3D-Ansicht]] gezeigt wird. Andere Eigenschaften die dieses Objekt besitzt, sind solche die die Darstellung der [[Part_TopoShape/de|TopoForm]] beeinflussen. |
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Weitere Eigenschaften die dieses Objekt hat beziehen sich auf das Aussehen seines [[Part_TopoShape/de|TopoForm]], einschließlich {{PropertyView/de|Winkelablenkung}}, {{PropertyView/de|Abweichung}}, {{PropertyView/de|Zeichenstil}}, {{PropertyView/de|Beleuchtung}}, {{PropertyView/de|Linienfarbe}}, {{PropertyView/de|Linienbreite}}, {{PropertyView/de|Punktfarbe}}, {{PropertyView/de|Punktgröße}}, und eben die versteckten Eigenschaften {{PropertyView/de|Diffuse Farbgebung}}, {{PropertyView/de|Linienfarben Anordnung}}, {{PropertyView/de|Linienmaterial}}, {{PropertyView/de|Punkt Farbanordnung}}, und {{PropertyView/de|Punktmaterial}}. |
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Diese sind die im [[Property_editor/de|Eigenschafteneditor]] enthaltenen Eigenschaften. Ausgeblendete Eigenschaften können mit dem Befehl {{MenuCommand|Alle anzeigen}} im Kontextmenü des [[Property_editor/de|Eigenschafteneditors]] angezeigt werden. |
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<span id="Data"></span> |
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=== Daten === |
=== Daten === |
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{{TitleProperty |
{{TitleProperty|Grundlage}} |
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** {{PropertyData|Angle}}: the angle of rotation around the {{PropertyData|Axis}}. By default, it is {{value|0°}} (zero degrees). |
** {{PropertyData|Angle}}: the angle of rotation around the {{PropertyData|Axis}}. By default, it is {{value|0°}} (zero degrees). |
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** {{PropertyData|Axis}}: the unit vector that defines the axis of rotation for the placement. Each component is a floating point value between {{value|0}} and {{value|1}}. If any value is above {{value|1}}, the vector is normalized so that the magnitude of the vector is {{value|1}}. By default, it is the positive Z axis, {{value|(0, 0, 1)}}. |
** {{PropertyData|Axis}}: the unit vector that defines the axis of rotation for the placement. Each component is a floating point value between {{value|0}} and {{value|1}}. If any value is above {{value|1}}, the vector is normalized so that the magnitude of the vector is {{value|1}}. By default, it is the positive Z axis, {{value|(0, 0, 1)}}. |
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** {{PropertyData|Position}}: a vector with the 3D coordinates of the base point. By default, it is the origin {{value|(0, 0, 0)}}. |
** {{PropertyData|Position}}: a vector with the 3D coordinates of the base point. By default, it is the origin {{value|(0, 0, 0)}}. |
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* {{PropertyData|Label|String}}: the user editable name of this object, it is an arbitrary UTF8 string. |
* {{PropertyData|Label|String}}: the user editable name of this object, it is an arbitrary UTF8 string. |
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<span id="View"></span> |
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==== Hidden properties Data ==== |
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=== Ansicht === |
=== Ansicht === |
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Most objects in FreeCAD have what is called a "[[viewprovider|viewprovider]]", which is a class that defines the visual appearance of the object in the [[3D_view|3D view]], and in the [[ |
Most objects in FreeCAD have what is called a "[[viewprovider|viewprovider]]", which is a class that defines the visual appearance of the object in the [[3D_view|3D view]], and in the [[Tree_view|Tree view]]. The default viewprovider of Part Feature objects defines the following properties. Scripted objects that are derived from Part Feature will have access to these properties as well. |
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{{TitleProperty|Base}} |
{{TitleProperty|Base}} |
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* {{PropertyView|Proxy|PythonObject|hidden}}: a custom [[ |
* {{PropertyView|Proxy|PythonObject|hidden}}: a custom [[Viewprovider|viewprovider]] class associated with this object. This only exists for the [[Python|Python]] version. See [[#Scripting|Scripting]]. |
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{{TitleProperty| |
{{TitleProperty|Anzeigeoptionen}} |
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* {{PropertyView|Bounding Box|Bool}}: if it is {{TRUE}}, the object will show the bounding box in the [[ |
* {{PropertyView|Bounding Box|Bool}}: if it is {{TRUE}}, the object will show the bounding box in the [[3D_view|3D view]]. |
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* {{PropertyView|Display Mode|Enumeration}}: {{value|Flat Lines}} (regular visualization), {{value|Shaded}} (no edges), {{value|Wireframe}} (no faces), {{value|Points}} (only vertices). |
* {{PropertyView|Display Mode|Enumeration}}: {{value|Flat Lines}} (regular visualization), {{value|Shaded}} (no edges), {{value|Wireframe}} (no faces), {{value|Points}} (only vertices). |
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* {{PropertyView|Show In Tree|Bool}}: it defaults to {{TRUE}}, in which case the object will appear in the [[ |
* {{PropertyView|Show In Tree|Bool}}: it defaults to {{TRUE}}, in which case the object will appear in the [[Tree_view|Tree view]]; otherwise, the object will be hidden in the tree view. Once an object in the tree is invisible, you can see it again by opening the context menu over the name of the document (right-click), and selecting {{CheckBox|TRUE|Show hidden items}}. Then the hidden item can be chosen and {{PropertyView|Show In Tree}} can be switched back to {{TRUE}}. |
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* {{PropertyView|Visibility|Bool}}: if it is {{TRUE}}, the object appears in the [[ |
* {{PropertyView|Visibility|Bool}}: if it is {{TRUE}}, the object appears in the [[3D_view|3D view]]; otherwise it is invisible. By default this property can be toggled on and off by pressing the {{KEY|Space}} bar. |
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{{TitleProperty| |
{{TitleProperty|Objektstil}} |
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* {{PropertyView|Angular Deflection|Angle}}: it is a companion to {{PropertyView|Deviation}}. It is another way to specify how finely to generate the mesh for rendering on screen or when exporting. The default value is {{value|28.5 degrees}}, or {{value|0.5 radians}}. This is the maximum value, the smaller the value the smoother the appearance will be in the [[ |
* {{PropertyView|Angular Deflection|Angle}}: it is a companion to {{PropertyView|Deviation}}. It is another way to specify how finely to generate the mesh for rendering on screen or when exporting. The default value is {{value|28.5 degrees}}, or {{value|0.5 radians}}. This is the maximum value, the smaller the value the smoother the appearance will be in the [[3D_view|3D view]], and the finer the mesh that will be exported. |
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* {{PropertyView|Deviation|FloatConstraint}}: it is a companion to {{PropertyView|Angular Deflection}}. It is another way to specify how finely to generate the mesh for rendering on screen or when exporting. The default value is {{value|0.5%}}. This is the maximum value, the smaller the value the smoother the appearance will be in the [[ |
* {{PropertyView|Deviation|FloatConstraint}}: it is a companion to {{PropertyView|Angular Deflection}}. It is another way to specify how finely to generate the mesh for rendering on screen or when exporting. The default value is {{value|0.5%}}. This is the maximum value, the smaller the value the smoother the appearance will be in the [[3D_view|3D view]], and the finer the mesh that will be exported. |
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* {{PropertyView|Diffuse Color|ColorList|hidden}}: it is a list of RGB tuples defining colors, similar to {{PropertyView|Shape Color}}. It defaults to a list of one {{value|[(0.8, 0.8, 0.8)]}}. |
* {{PropertyView|Diffuse Color|ColorList|hidden}}: it is a list of RGB tuples defining colors, similar to {{PropertyView|Shape Color}}. It defaults to a list of one {{value|[(0.8, 0.8, 0.8)]}}. |
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The deviation is a value in percentage that is related to the dimensions in millimeters of the bounding box of the object. The deviation in millimeters can be calculated as follows: |
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⚫ | * {{PropertyView|Line Color|Color}}: a tuple of three floating point RGB values {{value|(r,g,b)}} to define the color of the edges in the [[3D_view|3D view]]; by default it is {{value|(0.09, 0.09, 0.09)}}, which is displayed as {{value|[25,25,25]}} on base 255, <span style="background-color:#222; color:#eee; width:3em; height:12pt; padding: 2px 1em 2px;"> almost black </span>. |
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⚫ | * {{PropertyView|Line Color|Color}}: a tuple of three floating point RGB values {{value|(r,g,b)}} to define the color of the edges in the [[ |
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* {{PropertyView|Line Color Array|ColorList|hidden}}: it is a list of RGB tuples defining colors, similar to {{PropertyView|Line Color}}. It defaults to a list of one {{value|[(0.09, 0.09, 0.09)]}}. |
* {{PropertyView|Line Color Array|ColorList|hidden}}: it is a list of RGB tuples defining colors, similar to {{PropertyView|Line Color}}. It defaults to a list of one {{value|[(0.09, 0.09, 0.09)]}}. |
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* {{PropertyView|Line Material|Material|hidden}}: an [[App_Material|App Material]] associated with the edges in this object. By default it is empty. |
* {{PropertyView|Line Material|Material|hidden}}: an [[App_Material|App Material]] associated with the edges in this object. By default it is empty. |
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* {{PropertyView|Line Width|FloatConstraint}}: a float that determines the width in pixels of the edges in the [[ |
* {{PropertyView|Line Width|FloatConstraint}}: a float that determines the width in pixels of the edges in the [[3D_view|3D view]]. It defaults to {{value|2.0}}. |
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* {{PropertyView|Point Color|Color}}: similar to {{PropertyView|Line Color}}, defines the color of the vertices. |
* {{PropertyView|Point Color|Color}}: similar to {{PropertyView|Line Color}}, defines the color of the vertices. |
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* {{PropertyView|Shape Color|Color}}: similar to {{PropertyView|Line Color}}, defines the color of the faces. It defaults to {{value|(0.8, 0.8, 0.8)}}, which is displayed as {{value|[204, 204, 204]}} on base 255, a <span style="background-color:#ccc; width:3em; height:12pt; padding: 2px 1em 2px;">light gray</span>. |
* {{PropertyView|Shape Color|Color}}: similar to {{PropertyView|Line Color}}, defines the color of the faces. It defaults to {{value|(0.8, 0.8, 0.8)}}, which is displayed as {{value|[204, 204, 204]}} on base 255, a <span style="background-color:#ccc; width:3em; height:12pt; padding: 2px 1em 2px;">light gray</span>. |
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* {{PropertyView|Shape Material|Material|hidden}}: an [[App_Material|App Material]] associated with this object. By default it is empty. |
* {{PropertyView|Shape Material|Material|hidden}}: an [[App_Material|App Material]] associated with this object. By default it is empty. |
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* {{PropertyView|Transparency|Percent}}: an integer from {{value|0}} to {{value|100}} (a percentage) that determines the level of transparency of the faces in the [[ |
* {{PropertyView|Transparency|Percent}}: an integer from {{value|0}} to {{value|100}} (a percentage) that determines the level of transparency of the faces in the [[3D_view|3D view]]. A value of {{value|100}} indicates completely invisible faces; the faces are invisible but they can still be picked as long as {{PropertyView|Selectable}} is {{TRUE}}. |
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{{TitleProperty| |
{{TitleProperty|Auswahl}} |
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* {{PropertyView|On Top When Selected|Enumeration}}: it controls the way in which the selection occurs in the [[3D_view|3D view]] if the object has a [[Part_TopoShape|Shape]], and there are many objects partially covered by others. It defaults to {{value|Disabled}}, meaning that no special highlighting will occur; {{value|Enabled}} means that the object will appear on top of any other object when selected; {{value|Object}} means that the object will appear on top only if the entire object is selected in the [[ |
* {{PropertyView|On Top When Selected|Enumeration}}: it controls the way in which the selection occurs in the [[3D_view|3D view]] if the object has a [[Part_TopoShape|Shape]], and there are many objects partially covered by others. It defaults to {{value|Disabled}}, meaning that no special highlighting will occur; {{value|Enabled}} means that the object will appear on top of any other object when selected; {{value|Object}} means that the object will appear on top only if the entire object is selected in the [[Tree_view|Tree view]]; {{value|Element}} means that the object will appear on top only if a subelement (vertex, edge, face) is selected in the [[3D_view|3D view]]. |
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* {{PropertyView|Selectable|Bool}}: if it is {{TRUE}}, the object can be picked with the pointer in the [[ |
* {{PropertyView|Selectable|Bool}}: if it is {{TRUE}}, the object can be picked with the pointer in the [[3D_view|3D view]]. Otherwise, the object cannot be selected until this option is set to {{TRUE}}. |
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* {{PropertyView|Selection Style|Enumeration}}: it controls the way the object is highlighted. If it is {{value|Shape}}, the entire shape (vertices, edges, and faces) will be highlighted in the [[ |
* {{PropertyView|Selection Style|Enumeration}}: it controls the way the object is highlighted. If it is {{value|Shape}}, the entire shape (vertices, edges, and faces) will be highlighted in the [[3D_view|3D view]]; if it is {{value|BoundBox}} a bounding box will appear surrounding the object and will be highlighted. |
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<span id="Angular_deflection_and_deviation"></span> |
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=== Deviation value === |
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===Verdrehwinkel und Winkelabweichung=== |
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[[File:View_property_Deviation.svg|500px]] |
[[File:View_property_Deviation.svg|500px]] |
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{{Caption|Parameter für Verdrehwinkel und Winkelabweichung: d < lineare Abweichung, α < Winkelabweichung.}} |
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{{Caption|Deflection parameters of {{incode|BRepMesh_IncrementalMesh}} algorithm; d < linear deflection, α < angular deflection.}} |
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Die Abweichung ist ein Wert in Prozent, der mit den Abmaßen in mm der Bounding-Box des Objekts zusammenhängt. Die Abweichung in mm kann wie folgt berechnet werden: |
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See the forum thread, [https://forum.freecadweb.org/viewtopic.php?f=3&t=45512 Deviation and Angular deflection]. |
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== Scripting == |
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<span id="Scripting"></span> |
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== Skripten == |
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{{Emphasis|Siehe auch:}} [[FreeCAD_Scripting_Basics/de|FreeCAD Grundlagen Skripten]] und [[Scripted_objects/de|Skriptgenerierte Objekte]]. |
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Ein Part Formelement wird mit der {{incode|addObject()}} Methode des Dokuments erstellt. |
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{{Emphasis|See also:}} [[FreeCAD Scripting Basics|FreeCAD Scripting Basics]], and [[scripted objects|scripted objects]]. |
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A Part Feature is created with the {{incode|addObject()}} method of the document. |
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{{Code|code= |
{{Code|code= |
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import FreeCAD as App |
import FreeCAD as App |
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}} |
}} |
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Für [[Python/de|Python]]-Subclassing sollte ein {{incode|Part::FeaturePython}}-Objekt erstellt werden. |
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This basic {{incode|Part::Feature}} doesn't have a Proxy object so it can't be fully used for sub-classing. |
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Therefore, for [[Python|Python]] subclassing, you should create the {{incode|Part::FeaturePython}} object. |
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{{Code|code= |
{{Code|code= |
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import FreeCAD as App |
import FreeCAD as App |
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}} |
}} |
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<span id="Name"></span> |
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=== |
=== Namen === |
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See also: [[Object_name|Object name]] for more information on the properties of the {{incode|Name}}. |
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The {{incode|addObject}} |
The {{incode|addObject}} method has two basic string arguments. |
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* The first argument indicates the type of object, in this case, {{incode|"Part::FeaturePython"}}. |
* The first argument indicates the type of object, in this case, {{incode|"Part::FeaturePython"}}. |
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* The second argument is a string that defines the {{incode|Name}} attribute. If it is not provided, it defaults to the same name as the class, that is, {{incode|"Part__FeaturePython"}}. The {{incode|Name}} can only include simple alphanumeric characters, and the underscore, {{incode|[_0-9a-zA-Z]}}. If other symbols are given, these will be converted to underscores; for example, {{incode|"A+B:C*"}} is converted to {{incode|"A_B_C_"}}. |
* The second argument is a string that defines the {{incode|Name}} attribute. If it is not provided, it defaults to the same name as the class, that is, {{incode|"Part__FeaturePython"}}. The {{incode|Name}} can only include simple alphanumeric characters, and the underscore, {{incode|[_0-9a-zA-Z]}}. If other symbols are given, these will be converted to underscores; for example, {{incode|"A+B:C*"}} is converted to {{incode|"A_B_C_"}}. |
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= |
<span id="Label"></span> |
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=== Beschriftung === |
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If desired, the {{incode|Label}} attribute can be changed to a more meaningful text. |
If desired, the {{incode|Label}} attribute can be changed to a more meaningful text. |
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* The {{incode|Label}} can accept any UTF8 string, including accents and spaces. Since the [[ |
* The {{incode|Label}} can accept any UTF8 string, including accents and spaces. Since the [[Tree_view|Tree view]] displays the {{incode|Label}}, it is a good practice to change the {{incode|Label}} to a more descriptive string. |
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* By default the {{incode|Label}} is unique, just like the {{incode|Name}}. However, this behavior can be changed in the [[ |
* By default the {{incode|Label}} is unique, just like the {{incode|Name}}. However, this behavior can be changed in the [[Preferences_Editor|preferences editor]], {{MenuCommand|Edit → Preferences → General → Document → Allow duplicate object labels in one document}}. This means that in general the {{incode|Label}} may be repeated in the same document; when testing for a specific element the user should rely on the {{incode|Name}} rather than on the {{incode|Label}}. |
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{{ |
{{Document_objects_navi{{#translation:}}}} |
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{{Document objects navi{{#translation:}}}} |
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{{Userdocnavi{{#translation:}}}} |
{{Userdocnavi{{#translation:}}}} |
Latest revision as of 07:50, 7 April 2023
Einleitung
Ein Part Formelement-Objekt, oder formal ein Part:: Feature
, ist ein einfaches Element mit einer topologischen Form, das in der 3D-Ansicht angezeigt werden kann.
Das Part-Formelement ist die Elternklasse der meisten 2D-(Draft-, Sketcher-) und 3D- (Part-, PartDesign-) Objekte, mit Ausnahme von Polygonnetzen, die normalerweise auf demMesh Formelement oder dem FEM Polygonnetz-Objekt für FEM-Objekte basieren.
Vereinfachtes Diagramm der Beziehungen zwischen den Kernobjekten in FreeCAD
Anwendung
Das Part-Formelement ist ein internes Objekt, kann also nicht von der grafischen Oberfläche aus erstellt werden, sondern nur von der Python-Konsole aus, wie im Abschnitt Skripten beschrieben.
Das Part::Feature
wird im Arbeitsbereich Part definiert, kann aber als Basisklasse für skriptgenerierte Objekte in allen Arbeitsbereichen verwendet werden, die 2D- und 3D-Geometrieformen erstellen. Im Wesentlichen sind alle im Arbeitsbereich Part erstellten Objekte Instanzen eines Part::Feature
s.
Das Part::Feature
ist auch die Elternklasse des PartDesign Körpers, der PartDesign Formelemente und der Part Part2DObjekte, die auf 2D-(planare) Formen spezialisiert ist.
Arbeitsbereiche können diesem Grundelement weitere Eigenschaften hinzufügen, um ein Objekt mit komplexem Verhalten zu erzeugen.
Eigenschaften
Siehe Eigenschaft für alle Eigenschaftstypen, die geskriptete Objekte haben können.
Das Part-Formelement (Klasse Part::Feature
) wird von dem Grundelement App GeoFeature (Klasse App::GeoFeature
) abgeleitet, und erbt alle seine Eigenschaften. Es besitzt auch einige zusätzliche Eigenschaften. Hervorzuheben ist eine Daten-EigenschaftShape, die die Part TopoForm des Objekts speichert. Dies ist die Geometrie, die in der 3D-Ansicht gezeigt wird. Andere Eigenschaften die dieses Objekt besitzt, sind solche die die Darstellung der TopoForm beeinflussen.
Diese sind die im Eigenschafteneditor enthaltenen Eigenschaften. Ausgeblendete Eigenschaften können mit dem Befehl Alle anzeigen im Kontextmenü des Eigenschafteneditors angezeigt werden.
Daten
Grundlage
- Daten (Hidden)Proxy (
PythonObject
): a custom class associated with this object. This only exists for the Python version. See Scripting. - Daten (Hidden)Shape (
PartShape
): a Part TopoShape class associated with this object. - DatenPlacement (
Placement
): the position of the object in the 3D view. The placement is defined by aBase
point (vector), and aRotation
(axis and angle). See Placement.- DatenAngle: the angle of rotation around the DatenAxis. By default, it is
0°
(zero degrees). - DatenAxis: the unit vector that defines the axis of rotation for the placement. Each component is a floating point value between
0
and1
. If any value is above1
, the vector is normalized so that the magnitude of the vector is1
. By default, it is the positive Z axis,(0, 0, 1)
. - DatenPosition: a vector with the 3D coordinates of the base point. By default, it is the origin
(0, 0, 0)
.
- DatenAngle: the angle of rotation around the DatenAxis. By default, it is
- DatenLabel (
String
): the user editable name of this object, it is an arbitrary UTF8 string. - Daten (Hidden)Label2 (
String
): a longer, user editable description of this object, it is an arbitrary UTF8 string that may include newlines. By default, it is an empty string""
. - Daten (Hidden)Expression Engine (
ExpressionEngine
): a list of expressions. By default, it is empty[]
. - Daten (Hidden)Visibility (
Bool
): whether to display the object or not.
Ansicht
Most objects in FreeCAD have what is called a "viewprovider", which is a class that defines the visual appearance of the object in the 3D view, and in the Tree view. The default viewprovider of Part Feature objects defines the following properties. Scripted objects that are derived from Part Feature will have access to these properties as well.
Base
- Ansicht (hidden)Proxy (
PythonObject
): a custom viewprovider class associated with this object. This only exists for the Python version. See Scripting.
Anzeigeoptionen
- AnsichtBounding Box (
Bool
): if it istrue
, the object will show the bounding box in the 3D view. - AnsichtDisplay Mode (
Enumeration
):Flat Lines
(regular visualization),Shaded
(no edges),Wireframe
(no faces),Points
(only vertices). - AnsichtShow In Tree (
Bool
): it defaults totrue
, in which case the object will appear in the Tree view; otherwise, the object will be hidden in the tree view. Once an object in the tree is invisible, you can see it again by opening the context menu over the name of the document (right-click), and selecting Show hidden items. Then the hidden item can be chosen and AnsichtShow In Tree can be switched back totrue
. - AnsichtVisibility (
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.
Objektstil
- AnsichtAngular Deflection (
Angle
): it is a companion to AnsichtDeviation. It is another way to specify how finely to generate the mesh for rendering on screen or when exporting. The default value is28.5 degrees
, or0.5 radians
. This is the maximum value, the smaller the value the smoother the appearance will be in the 3D view, and the finer the mesh that will be exported. - AnsichtDeviation (
FloatConstraint
): it is a companion to AnsichtAngular Deflection. It is another way to specify how finely to generate the mesh for rendering on screen or when exporting. The default value is0.5%
. This is the maximum value, the smaller the value the smoother the appearance will be in the 3D view, and the finer the mesh that will be exported. - Ansicht (hidden)Diffuse Color (
ColorList
): it is a list of RGB tuples defining colors, similar to AnsichtShape Color. It defaults to a list of one[(0.8, 0.8, 0.8)]
. - AnsichtDraw Style (
Enumeration
):Solid
(default),Dashed
,Dotted
,Dashdot
; defines the style of the edges in the 3D view. - AnsichtLighting (
Enumeration
):Two side
(default),One side
; the illumination comes from two sides or one side in the 3D view. - AnsichtLine Color (
Color
): a tuple of three floating point RGB values(r,g,b)
to define the color of the edges in the 3D view; by default it is(0.09, 0.09, 0.09)
, which is displayed as[25,25,25]
on base 255, almost black . - Ansicht (hidden)Line Color Array (
ColorList
): it is a list of RGB tuples defining colors, similar to AnsichtLine Color. It defaults to a list of one[(0.09, 0.09, 0.09)]
. - Ansicht (hidden)Line Material (
Material
): an App Material associated with the edges in this object. By default it is empty. - AnsichtLine Width (
FloatConstraint
): a float that determines the width in pixels of the edges in the 3D view. It defaults to2.0
.
- AnsichtPoint Color (
Color
): similar to AnsichtLine Color, defines the color of the vertices. - Ansicht (hidden)Point Color Array (
ColorList
): it is a list of RGB tuples defining colors, similar to AnsichtPoint Color. It defaults to a list of one[(0.09, 0.09, 0.09)]
. - Ansicht (hidden)Point Material (
Material
): an App Material associated with the vertices in this object. By default it is empty. - AnsichtPoint Size (
FloatConstraint
): similar to AnsichtLine Width, defines the size of the vertices.
- AnsichtShape Color (
Color
): similar to AnsichtLine Color, defines the color of the faces. It defaults to(0.8, 0.8, 0.8)
, which is displayed as[204, 204, 204]
on base 255, a light gray. - Ansicht (hidden)Shape Material (
Material
): an App Material associated with this object. By default it is empty. - AnsichtTransparency (
Percent
): an integer from0
to100
(a percentage) that determines the level of transparency of the faces in the 3D view. A value of100
indicates completely invisible faces; the faces are invisible but they can still be picked as long as AnsichtSelectable istrue
.
Auswahl
- AnsichtOn Top When Selected (
Enumeration
): it controls the way in which the selection occurs in the 3D view if the object has a Shape, and there are many objects partially covered by others. It defaults toDisabled
, meaning that no special highlighting will occur;Enabled
means that the object will appear on top of any other object when selected;Object
means that the object will appear on top only if the entire object is selected in the Tree view;Element
means that the object will appear on top only if a subelement (vertex, edge, face) is selected in the 3D view. - AnsichtSelectable (
Bool
): if it istrue
, the object can be picked with the pointer in the 3D view. Otherwise, the object cannot be selected until this option is set totrue
. - AnsichtSelection Style (
Enumeration
): it controls the way the object is highlighted. If it isShape
, the entire shape (vertices, edges, and faces) will be highlighted in the 3D view; if it isBoundBox
a bounding box will appear surrounding the object and will be highlighted.
Verdrehwinkel und Winkelabweichung
Parameter für Verdrehwinkel und Winkelabweichung: d < lineare Abweichung, α < Winkelabweichung.
Die Abweichung ist ein Wert in Prozent, der mit den Abmaßen in mm der Bounding-Box des Objekts zusammenhängt. Die Abweichung in mm kann wie folgt berechnet werden:
deviation_in_mm = (w + h + d)/3 * deviation/100
wobei w
, h
, d
die Begrenzungsrahmen Abmessungen sind.
Skripten
Siehe auch: FreeCAD Grundlagen Skripten und Skriptgenerierte Objekte.
Ein Part Formelement wird mit der addObject()
Methode des Dokuments erstellt.
import FreeCAD as App
doc = App.newDocument()
obj = App.ActiveDocument.addObject("Part::Feature", "Name")
obj.Label = "Custom label"
Für Python-Subclassing sollte ein Part::FeaturePython
-Objekt erstellt werden.
import FreeCAD as App
doc = App.newDocument()
obj = App.ActiveDocument.addObject("Part::FeaturePython", "Name")
obj.Label = "Custom label"
Namen
See also: Object name for more information on the properties of the Name
.
The addObject
method has two basic string arguments.
- The first argument indicates the type of object, in this case,
"Part::FeaturePython"
. - The second argument is a string that defines the
Name
attribute. If it is not provided, it defaults to the same name as the class, that is,"Part__FeaturePython"
. TheName
can only include simple alphanumeric characters, and the underscore,[_0-9a-zA-Z]
. If other symbols are given, these will be converted to underscores; for example,"A+B:C*"
is converted to"A_B_C_"
.
Beschriftung
If desired, the Label
attribute can be changed to a more meaningful text.
- The
Label
can accept any UTF8 string, including accents and spaces. Since the Tree view displays theLabel
, it is a good practice to change theLabel
to a more descriptive string. - By default the
Label
is unique, just like theName
. However, this behavior can be changed in the preferences editor, Edit → Preferences → General → Document → Allow duplicate object labels in one document. This means that in general theLabel
may be repeated in the same document; when testing for a specific element the user should rely on theName
rather than on theLabel
.
- Core: App DocumentObject
- Basic: App FeaturePython, App GeoFeature, Part Feature, Mesh Feature, Fem FemMeshObject
- Internal shapes: Part TopoShape, Mesh MeshObject, Fem FemMesh
- Structure: App DocumentObjectGroup (Std Group), App Part (Std Part), App Link (Std LinkMake)
- Derived: Part Part2DObject, Sketcher SketchObject, PartDesign Body, PartDesign Feature
- Erste Schritte
- Installation: Herunterladen, Windows, Linux, Mac, Zusätzlicher Komponenten, Docker, AppImage, Ubuntu Snap
- Grundlagen: Über FreeCAD, Graphische Oberfläche, Mausbedienung, Auswahlmethoden, Objektname, Programmeinstellungen, Arbeitsbereiche, Dokumentstruktur, Objekteigenschaften, Hilf FreeCAD, Spende
- Hilfe: Tutorien, Video Tutorien
- Arbeitsbereiche: Std Base, Arch, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework