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assembly: support flip part of multiplied constraining elements

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This commit is contained in:
Zheng, Lei 2021-01-08 17:22:56 +08:00
parent caad48e927
commit 6c68f0f901
1 changed files with 15 additions and 4 deletions
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19
freecad/asm3/assembly.py
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@ -1366,18 +1366,29 @@ class ViewProviderAsmElement(ViewProviderAsmOnTop):
rot = FreeCAD.Rotation(FreeCAD.Vector(1,0,0),180)
rot = FreeCAD.Placement(FreeCAD.Vector(), rot)
FreeCAD.setActiveTransaction(
'Flip element' if flipElement else 'Flip part')
title = 'Flip element' if flipElement else 'Flip part'
FreeCAD.setActiveTransaction(title)
try:
if flipElement:
obj.Offset = rot.multiply(obj.Offset)
else:
offset = utils.getElementPlacement(obj.getSubObject(''))
if hasProperty(obj,'Count'):
# for multiplied elements, we shall flip the first part of
# the first pairing elements. Note that constraint
# multiplication algorithm will sort the element pairs based
# on their proximity to stablize index change
info = obj.Proxy.getInfo(expand=True)[0]
shape = Part.getShape(obj, '%d.' % info.Part[1], transform=False)
offset = utils.getElementPlacement(shape)
else:
offset = utils.getElementPlacement(obj.getSubObject(''))
offset = offset.multiply(rot).multiply(offset.inverse())
setPlacement(info.Part, offset.multiply(info.Placement))
pla = offset.multiply(info.Placement)
setPlacement(info.Part, pla)
obj.recompute(True)
FreeCAD.closeActiveTransaction()
except Exception:
QtGui.QMessageBox.critical(None, 'Flip', title + ' failed')
FreeCAD.closeActiveTransaction(True)
raise