Part Part2DObject/it

Introduzione


Un Part Part2DObject, o formalmente un, è un elemento semplice a cui è associato un topologico che può essere visualizzato nella Vista 3D.

è derivato da una Part Feature, ma è specializzato nella geometria 2D, dato che la sua forma è posizionata su un piano. Il piano è definito dalla sua proprietà (posizione, normale e rotazione). Tuttavia, il piano può anche essere definito supportando elementi geometrici, come il piano creato da tre vertici arbitrari o una faccia di un corpo solido.



Utilizzo
Part Part2DObject è un oggetto interno, quindi non può essere creato dall'interfaccia grafica, ma solo dalla console Python come descritto nel paragrafo Script.

The is defined in the Part Workbench but can be used as the base class for scripted objects in all workbenches that produce 2D geometrical shapes. For example, it is the base object for sketches (Sketcher SketchObject), and for most objects created with the Draft Workbench.

Workbenches can add more properties to this basic element to produce an object with complex behavior.

Proprietà
See Property for all property types that scripted objects can have.

A Part Part2DObject ( class) is derived from a Part Feature ( class), therefore it shares all the latter's properties.

In addition to the properties described in Part Feature, the Part Part2DObject has the following properties in the property editor.

Dati

 * : "Deactivated" by default. This property determines a plane which the object will use as reference for 2D geometry. Clicking on the ellipsis (three dots), to the right of the entry field opens the Part Attachment task panel that allows selecting the supporting plane by picking different elements in the 3D view. The different modes are: Deactivated, Translate origin, Object's XY, Object's XZ, Object's YZ, Plane face, Tangent to surface, Normal to edge, Frenet NB, Frenet TN, Frenet TB, Concentric, Revolution section, Plane by 3 points, Normal to 3 points, Folding, Inertia 2-3, Align O-N-X, Align O-N-Y, Align O-X-Y, Align O-X-N, Align O-Y-N, Align O-Y-X.

See Part Attachment for more information on all mapping modes.

Vista

 * : a float that determines the size of the spacing of the local grid lines in the 3D view.
 * : if the grid can be used to snap points.
 * : Dashed or Light; the style of the grid lines.
 * : if a grid local to the object will be displayed in the 3D view. This grid is independent of the Draft grid.
 * : if the local grid will be localized around the origin of the shape, otherwise it will extend itself more.

Script
FreeCAD Scripting Basics, and scripted objects.

See Part Feature for the general information.

A Part Part2DObject is created with the method of the document.