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Merge pull request #16 from looooo/develop

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fix mirror problem
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lorenz
2017-06-28 11:16:22 +02:00
committed by GitHub
parent 61b0d56ae4 c70726a293
commit e419f55709
1 changed files with 7 additions and 4 deletions
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11
gearfunc/_Classes.py
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@@ -463,10 +463,13 @@ def helicalextrusion(wire, height, angle, double_helix = False):
if double_helix:
first_spine = makeHelix(height * 2. * pi / abs(angle), 0.5 * height, 10., 0, direction)
first_solid = first_spine.makePipeShell([wire], True, True)
second_solid = first_solid.mirror(fcvec([0,0,0.5 * height]), fcvec([0,0,1]))
second_solid = first_solid.mirror(fcvec([0.,0.,0.]), fcvec([0,0,1]))
faces = first_solid.Faces + second_solid.Faces
faces = [f for f in faces if not on_mirror_plane(f, 0.5 * height, fcvec([0., 0., 1.]))]
return makeSolid(makeShell(faces))
faces = [f for f in faces if not on_mirror_plane(f, 0., fcvec([0., 0., 1.]))]
solid = makeSolid(makeShell(faces))
mat = App.Matrix()
mat.move(fcvec([0, 0, 0.5 * height]))
return solid.transformGeometry(mat)
else:
first_spine = makeHelix(height * 2 * pi / abs(angle), height, 10., 0, direction)
first_solid = first_spine.makePipeShell([wire], True, True)
@@ -493,7 +496,7 @@ def makeBSplineWire(pts):
wi.append(out.toShape())
return Wire(wi)
def on_mirror_plane(face, z, direction, small_size=0.01):
def on_mirror_plane(face, z, direction, small_size=0.000001):
# the tolerance is very high. Maybe there is a bug in Part.makeHelix.
return (face.normalAt(0, 0).cross(direction).Length < small_size and
abs(face.CenterOfMass.z - z) < small_size)