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Correct placementFromDXFOCS()

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Corrected placementFromDXFOCS() function with the indications provided by Autodesk (TM)
http://docs.autodesk.com/ACD/2011/ITA/filesDXF/WS1a9193826455f5ff18cb41610ec0a2e719-7941.htm
http://docs.autodesk.com/ACD/2011/ITA/filesDXF/WS1a9193826455f5ff18cb41610ec0a2e719-793d.htm#WSc30cd3d5faa8f6d81cb25f1ffb755717d-7ff5
This commit is contained in:
Dino del Favero
2020-12-13 23:59:47 +01:00
committed by GitHub
parent 68eba58e64
commit d89c869124
1 changed files with 22 additions and 1 deletions
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23
src/Mod/Draft/importDXF.py
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@@ -785,7 +785,7 @@ def placementFromDXFOCS(ent):
Parameters
----------
ent : A DXF entity
It could be of several types, like `lwpolyline`, `polynine`,
It could be of several types, like `lwpolyline`, `polyline`,
and others, and with `ent.extrusion`, `ent.elevation`
or `ent.loc` attributes.
@@ -802,6 +802,27 @@ def placementFromDXFOCS(ent):
draftWPlane = FreeCAD.DraftWorkingPlane
draftWPlane.alignToPointAndAxis(Vector(0.0, 0.0, 0.0),
vec(ent.extrusion), 0.0)
# Riferimenti dell'algoritmo dell'asse arbitrario
# http://docs.autodesk.com/ACD/2011/ITA/filesDXF/WS1a9193826455f5ff18cb41610ec0a2e719-7941.htm
# http://docs.autodesk.com/ACD/2011/ITA/filesDXF/WS1a9193826455f5ff18cb41610ec0a2e719-793d.htm#WSc30cd3d5faa8f6d81cb25f1ffb755717d-7ff5
if (draftWPlane.axis == FreeCAD.Vector(1.0, 0.0, 0.0)):
draftWPlane.u = FreeCAD.Vector(0.0, 1.0, 0.0)
draftWPlane.v = FreeCAD.Vector(0.0, 0.0, 1.0)
elif (draftWPlane.axis == FreeCAD.Vector(-1.0, 0.0, 0.0)):
draftWPlane.u = FreeCAD.Vector(0.0, -1.0, 0.0)
draftWPlane.v = FreeCAD.Vector(0.0, 0.0, 1.0)
else:
if ((abs(ent.extrusion[0]) < (1.0 / 64.0)) and (abs(ent.extrusion[1]) < (1.0 / 64.0))):
draftWPlane.u = FreeCAD.Vector(0.0, 1.0, 0.0).cross(draftWPlane.axis)
else:
draftWPlane.u = FreeCAD.Vector(0.0, 0.0, 1.0).cross(draftWPlane.axis)
draftWPlane.u.normalize()
draftWPlane.v = draftWPlane.axis.cross(draftWPlane.u)
draftWPlane.v.normalize()
draftWPlane.position = Vector(0.0, 0.0, 0.0)
draftWPlane.weak = False
pl = FreeCAD.Placement()
pl = draftWPlane.getPlacement()
if ((ent.type == "lwpolyline") or (ent.type == "polyline")):