Translations:Topological naming problem/2/en

The topological naming problem in FreeCAD refers to the issue of a shape changing its internal name after a modelling operation (pad, cut, union, chamfer, fillet, etc.) is performed. This will result in other parametric features that depend on that shape to break or be incorrectly computed. This issue affects all objects in FreeCAD but is especially notable when building solids with the PartDesign Workbench, and when dimensioning those solids with the TechDraw Workbench.

• In PartDesign, if a feature is supported on a face (or edge or vertex), the feature may break if the underlying solid changes size or orientation, as the original face (or edge or vertex) may be internally renamed.
• In TechDraw, if a dimension is measuring the length of a projected edge, the dimension may break if the 3D model is changed, as the vertices may be renamed thus changing the measured edge.