Arch MeshToShape

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Arch MeshToShape.svg Arch MeshToShape

Menu location
Arch → Utilities → Mesh to Shape
Default shortcut
Introduced in version
See also
Arch SplitMesh, Arch RemoveShape


This tool converts a selected Mesh object into a Shape object. Note that this tool is optimized for objects with flat faces (no curves). The corresponding tool from the Part Workbench might be more suited for objects that contain curved surfaces.

How to use

  1. Select a mesh object.
  2. Press the Arch MeshToShape.svg Mesh to Shape entry in Arch → Utilities → Mesh to Shape.


See also: Arch API and FreeCAD Scripting Basics.

This tool can be used in macros and from the Python console by using the following function:

new_obj = meshToShape(obj, mark=True, fast=True, tol=0.001, flat=False, cut=True)
  • Turns the given obj, a mesh, into a shape, joining coplanar facets.
  • If mark is True, non-solid objects will be marked in red.
  • If fast is True it uses a faster algorithm by building a shell from the facets then removing splitter.
  • tol is the tolerance used when converting mesh segments to wires.
  • If flat is True it will force the wires to be perfectly planar, to be sure they can be turned into faces, but this might leave gaps in the final shell.
  • If cut is True holes in faces are made by subtraction.
import Arch, Mesh, BuildRegularGeoms

Box = FreeCAD.ActiveDocument.addObject("Mesh::Cube", "Cube")
Box.Length = 1000
Box.Width = 2000
Box.Height = 1000

new_obj = Arch.meshToShape(Box)