Part TopoShape

Introduction
A Part TopoShape, or formally a, is a class that defines a parametric topological shape in the software. Objects in the document that show something in the 3D view normally have a TopoShape.

The topological shapes, as well as their methods, are defined by the OpenCASCADE Technology kernel (OCCT). FreeCAD uses these shapes, and builds App DocumentObjects around them.



How to use
The Part TopoShape is an object that is assigned to some App DocumentObjects.

In particular, the basic object that handles these types of attributes is the Part Feature ( class). All objects derived from this class will have access to a Part TopoShape.

Some of the most important objects with Part TopoShape are the following:
 * Any primitive solid created with the Part Workbench.
 * Any PartDesign Body and PartDesign Feature created with the PartDesign Workbench.
 * Any object derived from Part Part2DObject, like most objects created with the Draft Workbench.
 * Any sketch, that is, Sketcher SketchObject, created with the Sketcher Workbench.