Macro Extract Wires from Mesh/it: Difference between revisions
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{{Macro/it|Icon=Text-x-python|Name=Macro Extract Wires from Mesh|Name/it=Macro Estrai Wire da Mesh|Description=Estrae i bordi wire dai mesh |
{{Macro/it|Icon=Text-x-python|Name=Macro Extract Wires from Mesh|Name/it=Macro Estrai Wire da Mesh|Description=Estrae i bordi wire dai mesh selezionati|Author=Yorik|Version=1}} |
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==Description== |
==Description== |
Revision as of 17:11, 21 December 2016
File:Text-x-python Macro Extract Wires from Mesh |
Descrizione |
---|
Estrae i bordi wire dai mesh selezionati Versione macro: 1 Autore: Yorik |
Autore |
Yorik |
Download |
None |
Link |
Raccolta di macro Come installare le macro Personalizzare la toolbar |
Versione macro |
1 |
Data ultima modifica |
None |
Versioni di FreeCAD |
None |
Scorciatoia |
Nessuna |
Vedere anche |
Nessuno |
Description
Finds boundary wires in selected mesh objects. Boundary wires are formed from all the edges found in the mesh that are shared by only one face, that is, they are "border" edges. The found wires get added to the document (one compound per mesh object), while the mesh itself gets hidden.
Script
#!/usr/bin/python
# This macro will extract wires from selected meshes
# The result is a new Part Compound containing wires, one per original mesh object
# The selected meshes will be hidden but still selected after the operation.
# Warning, it takes a bit of time...
import FreeCAD,FreeCADGui,Part,Draft,DraftGeomUtils,Mesh
for obj in FreeCADGui.Selection.getSelection():
if obj.isDerivedFrom("Mesh::Feature"):
shape = Part.Shape()
shape.makeShapeFromMesh(obj.Mesh.Topology,0.1)
edges = []
lut = {}
for f in shape.Faces:
for e in f.Edges:
lut.setdefault(e.hashCode(),[]).append(e)
for k,v in lut.items():
if len(v) == 1:
edges.extend(v)
if edges:
wires = DraftGeomUtils.findWires(edges)
if wires:
Part.show(Part.makeCompound(wires))
obj.ViewObject.hide()