def face_normal(face):
from OCCT.BRepTools import breptools_UVBounds
umin, umax, vmin, vmax = breptools_UVBounds(face)
surf = BRep_Tool().Surface(face)
props = GeomLProp_SLProps(surf, (umin+umax)/2., (vmin+vmax)/2., 1, TOLERANCE)
norm = props.Normal()
if face.Orientation() == TopAbs_REVERSED:
norm.Reverse()
return norm
def is_trimmed(self):
"""
:return: True if the Wire delimiting the Face lies on the bounds
of the surface
if this is not the case, the wire represents a contour that delimits
the face [ think cookie cutter ]
and implies that the surface is trimmed
"""
_round = lambda x: round(x, 3)
a = map(_round, breptools_UVBounds(self))
b = map(_round, self.adaptor.Surface().Surface().GetObject().Bounds())
if a != b:
print('a,b', a, b)
return True
return False
def domain(self):
'''the u,v domain of the curve
:return: UMin, UMax, VMin, VMax
'''
return breptools_UVBounds(self)