## length = r.Parameter()
# curve_adapt = BRepAdaptor_Curve(e)
# length = GCPnts_AbscissaPoint().Length(curve_adapt, curve_adapt.FirstParameter(),
# curve_adapt.LastParameter(), 1e-6)
#
# y1, z1 = line.Location().X(), line.Location().Y()
# y2, z2 = line.Location().X() + length*line.Direction().X(), line.Location().Y() + length*line.Direction().Y()
#
# plt.plot([z1, z2], [y1, y2], color="red", alpha=0.2)
elif curve_adapt.GetType() == GeomAbs_Circle:
v = list(Topo(e).vertices())
start = (BRep_Tool.Pnt(v[0]).Y(), BRep_Tool.Pnt(v[0]).Z())
end = (BRep_Tool.Pnt(v[-1]).Y(), BRep_Tool.Pnt(v[-1]).Z())
circle = curve_adapt.Circle()
center = (circle.Location().Y(), circle.Location().Z())
radius = circle.Radius()
vec_start = (start[0] - center[0], start[1] - center[1])
vec_end = (end[0] - center[0], end[1] - center[1])
t_1 = angle360(vec_end)
t_2 = angle360(vec_start)
circle_width, circle_height = 2 * radius, 2 * radius
arc = mpatches.Arc(xy=center,
width=circle_width,
height=circle_height,
angle=0,
theta1=t_1,
def EdgeOnSurface(edge, section_plane, lim_coord1, lim_coord2, XYZ):
section_face = BRepBuilderAPI_MakeFace(section_plane, lim_coord1[0],
lim_coord1[1], lim_coord2[0],
lim_coord2[1]).Face()
curve_handle, first, last = BRep_Tool.CurveOnSurface(edge, section_face)
plane = Geom_Plane(section_plane)
edge_on_surface = BRepBuilderAPI_MakeEdge(curve_handle, plane.GetHandle(),
first, last).Edge()
curve_adaptor = BRepAdaptor_Curve(edge_on_surface)
if curve_adaptor.GetType() == GeomAbs_Line:
v = list(Topo(edge_on_surface).vertices())
v1 = BRep_Tool.Pnt(v[0]).X(), BRep_Tool.Pnt(v[0]).Y(), BRep_Tool.Pnt(
v[0]).Z()
v2 = BRep_Tool.Pnt(v[-1]).X(), BRep_Tool.Pnt(v[-1]).Y(), BRep_Tool.Pnt(
v[-1]).Z()
obj = Line3D(v1, v2)
elif curve_adaptor.GetType() == GeomAbs_Circle:
v = list(Topo(edge_on_surface).vertices())
v1 = BRep_Tool.Pnt(v[0]).X(), BRep_Tool.Pnt(v[0]).Y(), BRep_Tool.Pnt(
v[0]).Z()
v2 = BRep_Tool.Pnt(v[-1]).X(), BRep_Tool.Pnt(v[-1]).Y(), BRep_Tool.Pnt(
v[-1]).Z()
start = [v1[i] for i in range(len(XYZ)) if XYZ[i]]
end = [v2[i] for i in range(len(XYZ)) if XYZ[i]]
circle = curve_adaptor.Circle()
center = []
for i in range(len(XYZ)):
if XYZ[i] and i == 0:
center.append(circle.Location().X())
elif XYZ[i] and i == 1:
center.append(circle.Location().Y())
elif XYZ[i] and i == 2:
center.append(circle.Location().Z())
else:
center.append(0.5 * (v1[i] + v2[i]))
radius = circle.Radius()
vec_start = (start[0] - center[0], start[1] - center[1])
vec_end = (end[0] - center[0], end[1] - center[1])
t1 = angle360(vec_start)
t2 = angle360(vec_end)
if not XYZ[0]:
axis = circle.Axis().Direction().X()
elif not XYZ[1]:
axis = circle.Axis().Direction().Y()
elif not XYZ[2]:
axis = circle.Axis().Direction().Z()
if axis < 0:
t1, t2 = t2, t1
obj = Arc3D(v1, v2, t1, t2, center, radius)
elif curve_adaptor.GetType() == GeomAbs_BSplineCurve:
bspline = curve_adaptor.BSpline().GetObject()
degree = bspline.Degree()
knots = [
bspline.Knot(index) for index in range(1,
bspline.NbKnots() + 1)
]
mults = [
bspline.Multiplicity(index)
for index in range(1,
bspline.NbKnots() + 1)
]
poles = [(bspline.Pole(index).X(), bspline.Pole(index).Y(),
bspline.Pole(index).Z())
for index in range(1,
bspline.NbPoles() + 1)]
periodic = bspline.IsPeriodic()
obj = BSpline3D(poles, mults, knots, degree, periodic)
else:
print(curve_adaptor.GetType())
warnings.warn("Not recognized curve!")
return obj