def offset_cube(event=None):
S2 = BRepPrimAPI_MakeBox(gp_Pnt(300, 0, 0), 220, 140, 180).Shape()
offsetB = BRepOffsetAPI_MakeOffsetShape(S2, -20, 0.01, BRepOffset_Skin, False, False, GeomAbs_Arc)
offB = display.DisplayColoredShape(S2, 'BLUE')
display.Context.SetTransparency(offB, 0.3)
display.DisplayColoredShape(offsetB.Shape(), 'GREEN')
display.FitAll()
def make_offset_shape(shapeToOffset,
offsetDistance,
tolerance=TOLERANCE,
offsetMode=BRepOffset_Skin,
intersection=False,
selfintersection=False,
joinType=GeomAbs_Arc):
"""
builds an offsetted shell from a shape
construct an offsetted version of the shape
"""
from OCC.BRepOffsetAPI import BRepOffsetAPI_MakeOffsetShape
try:
offset = BRepOffsetAPI_MakeOffsetShape(shapeToOffset, offsetDistance,
tolerance, offsetMode,
intersection, selfintersection,
joinType)
if offset.IsDone():
return offset.Shape()
else:
return None
except RuntimeError('failed to offset shape'):
return None
def offSetShell(shape):
b = BRepOffsetAPI_MakeOffsetShape(solid, -0.15, 0, False, False)
b.Build()
return b.Shape()