def make_face_to_contour_from():
v1 = make_vertex(gp_Pnt(0, 0, 0))
v2 = make_vertex(gp_Pnt(10, 0, 0))
v3 = make_vertex(gp_Pnt(7, 10, 0))
v4 = make_vertex(gp_Pnt(10, 20, 0))
v5 = make_vertex(gp_Pnt(0, 20, 0))
v6 = make_vertex(gp_Pnt(3, 10, 0))
e1 = make_edge(v1, v2)
e2 = make_edge(v2, v3)
e3 = make_edge(v3, v4)
e4 = make_edge(v4, v5)
e5 = make_edge(v5, v6)
e6 = make_edge(v6, v1)
v7 = make_vertex(gp_Pnt(2, 2, 0))
v8 = make_vertex(gp_Pnt(8, 2, 0))
v9 = make_vertex(gp_Pnt(7, 3, 0))
v10 = make_vertex(gp_Pnt(3, 3, 0))
e7 = make_edge(v7, v8)
e8 = make_edge(v8, v9)
e9 = make_edge(v9, v10)
e10 = make_edge(v10, v7)
w1 = make_wire([e1, e2, e3, e4, e5, e6])
f = make_face(w1)
w2 = make_wire(e7, e8, e9, e10)
f2 = make_face(w2)
f3 = boolean_cut(f, f2)
return f3
def make_face_to_contour_from():
v1 = make_vertex(gp_Pnt(0, 0, 0))
v2 = make_vertex(gp_Pnt(10, 0, 0))
v3 = make_vertex(gp_Pnt(7, 10, 0))
v4 = make_vertex(gp_Pnt(10, 20, 0))
v5 = make_vertex(gp_Pnt(0, 20, 0))
v6 = make_vertex(gp_Pnt(3, 10, 0))
e1 = make_edge(v1, v2)
e2 = make_edge(v2, v3)
e3 = make_edge(v3, v4)
e4 = make_edge(v4, v5)
e5 = make_edge(v5, v6)
e6 = make_edge(v6, v1)
v7 = make_vertex(gp_Pnt(2, 2, 0))
v8 = make_vertex(gp_Pnt(8, 2, 0))
v9 = make_vertex(gp_Pnt(7, 3, 0))
v10 = make_vertex(gp_Pnt(3, 3, 0))
e7 = make_edge(v7, v8)
e8 = make_edge(v8, v9)
e9 = make_edge(v9, v10)
e10 = make_edge(v10, v7)
w1 = make_wire([e1, e2, e3, e4, e5, e6])
f = make_face(w1)
w2 = make_wire(e7, e8, e9, e10)
f2 = make_face(w2)
f3 = boolean_cut(f, f2)
return f3
def surface_from_curves():
'''
@param display:
'''
# First spline
array = []
array.append(gp_Pnt(-4, 0, 2))
array.append(gp_Pnt(-7, 2, 2))
array.append(gp_Pnt(-6, 3, 1))
array.append(gp_Pnt(-4, 3, -1))
array.append(gp_Pnt(-3, 5, -2))
pt_list1 = point_list_to_TColgp_Array1OfPnt(array)
SPL1 = GeomAPI_PointsToBSpline(pt_list1).Curve()
SPL1_c = SPL1.GetObject()
# Second spline
a2 = []
a2.append(gp_Pnt(-4, 0, 2))
a2.append(gp_Pnt(-2, 2, 0))
a2.append(gp_Pnt(2, 3, -1))
a2.append(gp_Pnt(3, 7, -2))
a2.append(gp_Pnt(4, 9, -1))
pt_list2 = point_list_to_TColgp_Array1OfPnt(a2)
SPL2 = GeomAPI_PointsToBSpline(pt_list2).Curve()
SPL2_c = SPL2.GetObject()
# Fill with StretchStyle
aGeomFill1 = GeomFill_BSplineCurves(SPL1,
SPL2,
GeomFill_StretchStyle)
SPL3 = Handle_Geom_BSplineCurve_DownCast(SPL1_c.Translated(gp_Vec(10, 0, 0)))
SPL4 = Handle_Geom_BSplineCurve_DownCast(SPL2_c.Translated(gp_Vec(10, 0, 0)))
# Fill with CoonsStyle
aGeomFill2 = GeomFill_BSplineCurves(SPL3,
SPL4,
GeomFill_CoonsStyle)
SPL5 = Handle_Geom_BSplineCurve_DownCast(SPL1_c.Translated(gp_Vec(20, 0, 0)))
SPL6 = Handle_Geom_BSplineCurve_DownCast(SPL2_c.Translated(gp_Vec(20, 0, 0)))
# Fill with CurvedStyle
aGeomFill3 = GeomFill_BSplineCurves(SPL5,
SPL6,
GeomFill_CurvedStyle)
aBSplineSurface1 = aGeomFill1.Surface()
aBSplineSurface2 = aGeomFill2.Surface()
aBSplineSurface3 = aGeomFill3.Surface()
display.DisplayShape(make_face(aBSplineSurface1, 1e-6))
display.DisplayShape(make_face(aBSplineSurface2, 1e-6))
display.DisplayShape(make_face(aBSplineSurface3, 1e-6), update=True)
def surface_from_curves():
'''
@param display:
'''
# First spline
array = []
array.append(gp_Pnt(-4, 0, 2))
array.append(gp_Pnt(-7, 2, 2))
array.append(gp_Pnt(-6, 3, 1))
array.append(gp_Pnt(-4, 3, -1))
array.append(gp_Pnt(-3, 5, -2))
pt_list1 = point_list_to_TColgp_Array1OfPnt(array)
SPL1 = GeomAPI_PointsToBSpline(pt_list1).Curve()
SPL1_c = SPL1.GetObject()
# Second spline
a2 = []
a2.append(gp_Pnt(-4, 0, 2))
a2.append(gp_Pnt(-2, 2, 0))
a2.append(gp_Pnt(2, 3, -1))
a2.append(gp_Pnt(3, 7, -2))
a2.append(gp_Pnt(4, 9, -1))
pt_list2 = point_list_to_TColgp_Array1OfPnt(a2)
SPL2 = GeomAPI_PointsToBSpline(pt_list2).Curve()
SPL2_c = SPL2.GetObject()
# Fill with StretchStyle
aGeomFill1 = GeomFill_BSplineCurves(SPL1, SPL2, GeomFill_StretchStyle)
SPL3 = Handle_Geom_BSplineCurve_DownCast(
SPL1_c.Translated(gp_Vec(10, 0, 0)))
SPL4 = Handle_Geom_BSplineCurve_DownCast(
SPL2_c.Translated(gp_Vec(10, 0, 0)))
# Fill with CoonsStyle
aGeomFill2 = GeomFill_BSplineCurves(SPL3, SPL4, GeomFill_CoonsStyle)
SPL5 = Handle_Geom_BSplineCurve_DownCast(
SPL1_c.Translated(gp_Vec(20, 0, 0)))
SPL6 = Handle_Geom_BSplineCurve_DownCast(
SPL2_c.Translated(gp_Vec(20, 0, 0)))
# Fill with CurvedStyle
aGeomFill3 = GeomFill_BSplineCurves(SPL5, SPL6, GeomFill_CurvedStyle)
aBSplineSurface1 = aGeomFill1.Surface()
aBSplineSurface2 = aGeomFill2.Surface()
aBSplineSurface3 = aGeomFill3.Surface()
display.DisplayShape(make_face(aBSplineSurface1, 1e-6))
display.DisplayShape(make_face(aBSplineSurface2, 1e-6))
display.DisplayShape(make_face(aBSplineSurface3, 1e-6), update=True)
def build_plate(polygon, points):
'''
build a surface from a constraining polygon(s) and point(s)
@param polygon: list of polygons ( TopoDS_Shape)
@param points: list of points ( gp_Pnt )
'''
# plate surface
bpSrf = GeomPlate_BuildPlateSurface(3, 15, 2)
# add curve constraints
for poly in polygon:
for edg in WireExplorer(poly).ordered_edges():
c = BRepAdaptor_HCurve()
c.ChangeCurve().Initialize(edg)
constraint = BRepFill_CurveConstraint(c.GetHandle(), 0)
bpSrf.Add(constraint.GetHandle())
# add point constraint
for pt in points:
bpSrf.Add(GeomPlate_PointConstraint(pt, 0).GetHandle())
bpSrf.Perform()
maxSeg, maxDeg, critOrder = 9, 8, 0
tol = 1e-4
dmax = max([tol, 10 * bpSrf.G0Error()])
srf = bpSrf.Surface()
plate = GeomPlate_MakeApprox(srf, tol, maxSeg, maxDeg, dmax, critOrder)
uMin, uMax, vMin, vMax = srf.GetObject().Bounds()
return make_face(plate.Surface(), uMin, uMax, vMin, vMax, 1e-4)
def build_plate(polygon, points):
'''
build a surface from a constraining polygon(s) and point(s)
@param polygon: list of polygons ( TopoDS_Shape)
@param points: list of points ( gp_Pnt )
'''
# plate surface
bpSrf = GeomPlate_BuildPlateSurface(3, 15, 2)
# add curve constraints
for poly in polygon:
for edg in WireExplorer(poly).ordered_edges():
c = BRepAdaptor_HCurve()
c.ChangeCurve().Initialize(edg)
constraint = BRepFill_CurveConstraint(c.GetHandle(), 0)
bpSrf.Add(constraint.GetHandle())
# add point constraint
for pt in points:
bpSrf.Add(GeomPlate_PointConstraint(pt, 0).GetHandle())
bpSrf.Perform()
maxSeg, maxDeg, critOrder = 9, 8, 0
tol = 1e-4
dmax = max([tol, 10 * bpSrf.G0Error()])
srf = bpSrf.Surface()
plate = GeomPlate_MakeApprox(srf, tol, maxSeg, maxDeg, dmax, critOrder)
uMin, uMax, vMin, vMax = srf.GetObject().Bounds()
return make_face(plate.Surface(), uMin, uMax, vMin, vMax, 1e-4)
def build_geom_plate(edges):
bpSrf = GeomPlate_BuildPlateSurface(3, 9, 12)
# add curve constraints
for edg in edges:
c = BRepAdaptor_HCurve()
print('edge:', edg)
c.ChangeCurve().Initialize(edg)
constraint = BRepFill_CurveConstraint(c.GetHandle(), 0)
bpSrf.Add(constraint.GetHandle())
# add point constraint
try:
bpSrf.Perform()
except RuntimeError:
print('failed to build the geom plate surface ')
srf = bpSrf.Surface()
plate = GeomPlate_MakeApprox(srf, 0.01, 10, 5, 0.01, 0, GeomAbs_C0)
uMin, uMax, vMin, vMax = srf.GetObject().Bounds()
face = make_face(plate.Surface(), uMin, uMax, vMin, vMax, 1e-6)
return face
def build_geom_plate(edges):
bpSrf = GeomPlate_BuildPlateSurface(3, 9, 12)
# add curve constraints
for edg in edges:
c = BRepAdaptor_HCurve()
print('edge:', edg)
c.ChangeCurve().Initialize(edg)
constraint = BRepFill_CurveConstraint(c.GetHandle(), 0)
bpSrf.Add(constraint.GetHandle())
# add point constraint
try:
bpSrf.Perform()
except RuntimeError:
print('failed to build the geom plate surface ')
srf = bpSrf.Surface()
plate = GeomPlate_MakeApprox(srf, 0.01, 10, 5, 0.01, 0, GeomAbs_C0)
uMin, uMax, vMin, vMax = srf.GetObject().Bounds()
face = make_face(plate.Surface(), uMin, uMax, vMin, vMax, 1e-6)
return face