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fixed tests to pass with FreeCAD 0.15

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This commit is contained in:
Dave Cowden 2016-04-03 20:24:13 -04:00
parent 3ea7829471
commit e0e14a133d
1 changed files with 13 additions and 2 deletions
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15
cadquery/freecad_impl/shapes.py
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@ -237,8 +237,8 @@ class Shape(object):
:param objects: a list of objects with mass
"""
total_mass = sum(o.wrapped.Mass for o in objects)
weighted_centers = [o.wrapped.CenterOfMass.multiply(o.wrapped.Mass) for o in objects]
total_mass = sum(Shape.computeMass(o) for o in objects)
weighted_centers = [o.wrapped.CenterOfMass.multiply(Shape.computeMass(o)) for o in objects]
sum_wc = weighted_centers[0]
for wc in weighted_centers[1:] :
@ -246,6 +246,17 @@ class Shape(object):
return Vector(sum_wc.multiply(1./total_mass))
@staticmethod
def computeMass(object):
"""
Calculates the 'mass' of an object. in FreeCAD < 15, all objects had a mass.
in FreeCAD >=15, faces no longer have mass, but instead have area.
"""
if object.wrapped.ShapeType == 'Face':
return object.wrapped.Area
else:
return object.wrapped.Mass
@staticmethod
def CombinedCenterOfBoundBox(objects):
"""