def helicalextrusion(wire, height, angle, double_helix = False):
direction = bool(angle < 0)
if double_helix:
first_spine = makeHelix(height * 2. * np.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.]), fcvec([0,0,1]))
faces = first_solid.Faces + second_solid.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 * np.pi / abs(angle), height, 10., 0, direction)
first_solid = first_spine.makePipeShell([wire], True, True)
return first_solid
def helicalextrusion(wire, height, angle):
face_a = Face(wire)
face_b = face_a.copy()
face_transform = App.Matrix()
face_transform.rotateZ(angle)
face_transform.move(App.Vector(0, 0, height))
face_b.transformShape(face_transform)
spine = Wire(Line(fcvec([0., 0, 0]), fcvec([0, 0, height])).toShape())
auxspine = makeHelix(height * 2 * pi / abs(angle), height, 10., 0,
bool(angle < 0))
faces = [face_a, face_b]
pipeshell = BRepOffsetAPI.MakePipeShell(spine)
pipeshell.setSpineSupport(spine)
pipeshell.add(wire)
pipeshell.setAuxiliarySpine(auxspine, True, False)
assert (pipeshell.isReady())
pipeshell.build()
faces.extend(pipeshell.shape().Faces)
fullshell = Shell(faces)
solid = Solid(fullshell)
if solid.Volume < 0:
solid.reverse()
assert (solid.Volume >= 0)
return (solid)
def helicalextrusion(wire, height, angle, double_helix=False):
direction = bool(angle < 0)
if double_helix:
first_spine = makeHelix(height * 2. * np.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.]), fcvec([0, 0, 1]))
faces = first_solid.Faces + second_solid.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 * np.pi /
abs(angle), height, 10., 0, direction)
first_solid = first_spine.makePipeShell([wire], True, True)
return first_solid
def helicalextrusion(wire, height, angle):
face_a = Face(wire)
face_b = face_a.copy()
face_transform = App.Matrix()
face_transform.rotateZ(angle)
face_transform.move(App.Vector(0, 0, height))
face_b . transformShape(face_transform)
spine = Wire(Line(fcvec([0., 0, 0]), fcvec([0, 0, height])).toShape())
auxspine = makeHelix(height * 2 * pi / angle, height, 1.)
faces = [face_a, face_b]
pipeshell = BRepOffsetAPI.MakePipeShell(spine)
pipeshell.setSpineSupport(spine)
pipeshell.add(wire)
pipeshell.setAuxiliarySpine(auxspine, True, False)
assert(pipeshell.isReady())
pipeshell.build()
faces.extend(pipeshell.shape().Faces)
fullshell = Shell(faces)
solid = Solid(fullshell)
if solid.Volume < 0:
solid.reverse()
assert(solid.Volume >= 0)
return(solid)
def helicalextrusion(wire, height, angle):
spine = Wire(Line(fcvec([0., 0, 0]), fcvec([0, 0, height])).toShape())
auxspine = makeHelix(height * 2 * pi / abs(angle), height, 10., 0,
bool(angle < 0))
solid = auxspine.makePipeShell([wire], True, True)
return solid