GuiCommand: Name: Mesh PolyTrim MenuLocation: Meshes , Cutting , Trim mesh Workbenches: Mesh_Workbench SeeAlso: Mesh_PolyCut, Mesh_TrimByPlane
Mesh PolyTrim
Description
The Mesh PolyTrim command trims faces and parts of faces from mesh objects.
Usage
-
During the command the 3D view cannot be changed. It is advisable to properly line up the 3d view first.
-
Select one or more mesh objects.
-
There are several ways to invoke the command:
- Press the
Trim mesh button. - Select the Meshes → Cutting → Trim mesh option from the menu.
- Press the
-
Define a polygon by picking points in the 3D view.
-
Select an option from the 3D view context menu:
**Inner** : removes the faces and parts of faces that are inside the polygon.-
Outer
: removes the faces and parts of faces that are outside the polygon.
-
Split
: removes the faces and parts of faces that are outside the polygon, and creates a new mesh object containing them.
-
Cancel
: cancels the command.
-
Scripting
See also: FreeCAD Scripting Basics.
To trim a mesh with a polygon use its trim method.
import FreeCAD as App
import Mesh
# Create a non-parametric box-shaped mesh:
msh = App.ActiveDocument.addObject("Mesh::Feature", "Mesh")
msh.Mesh = Mesh.createBox(30, 40, 50)
msh.ViewObject.DisplayMode = "Flat Lines"
# Define some points:
p1 = App.Vector(0, 0, 0)
p2 = App.Vector(60, 0, 0)
p3 = App.Vector(60, 60, 0)
# We need to work on a copy of the msh.Mesh object:
new_msh = msh.Mesh.copy()
# Trim that copy:
new_msh.trim([p1, p2, p3], 0) # 2nd argument: 0=inner, 1=outer.
# Update msh.Mesh:
msh.Mesh = new_msh{{Mesh Tools navi}}
⏵ documentation index > Mesh > Mesh PolyTrim
This page is retrieved from https://github.com/FreeCAD/FreeCAD-documentation/blob/main/wiki/Mesh_PolyTrim.md