def generate_solid(self):
"""
Generate an assembled solid shaft using the BRepBuilderAPI_MakeSolid
algorithm. This method requires PythonOCC to be installed.
:raises RuntimeError: if the assembling of the solid shaft is not
completed successfully
:return: solid shaft
:rtype: OCC.Core.TopoDS.TopoDS_Solid
"""
ext = os.path.splitext(self.filename)[1][1:]
if ext == 'stl':
shaft_compound = read_stl_file(self.filename)
elif ext == 'iges':
iges_reader = IGESControl_Reader()
iges_reader.ReadFile(self.filename)
iges_reader.TransferRoots()
shaft_compound = iges_reader.Shape()
else:
raise Exception('The shaft file is not in iges/stl formats')
sewer = BRepBuilderAPI_Sewing(1e-2)
sewer.Add(shaft_compound)
sewer.Perform()
result_sewed_shaft = sewer.SewedShape()
shaft_solid_maker = BRepBuilderAPI_MakeSolid()
shaft_solid_maker.Add(OCC.Core.TopoDS.topods_Shell(result_sewed_shaft))
if not shaft_solid_maker.IsDone():
raise RuntimeError('Unsuccessful assembling of solid shaft')
shaft_solid = shaft_solid_maker.Solid()
return shaft_solid
def extrusion_to_solid(extrusion, name):
from OCC.Core.BRepBuilderAPI import BRepBuilderAPI_Sewing, BRepBuilderAPI_MakeSolid
from OCC.Core.TopoDS import topods
from OCC.Core.BRepGProp import brepgprop_VolumeProperties
from OCC.Core.GProp import GProp_GProps
from OCCUtils.Topology import Topo
d = extrusion_to_ruled_surfaces(extrusion, cap=True)
sew = BRepBuilderAPI_Sewing()
make_solid = BRepBuilderAPI_MakeSolid()
faces = {}
for k in d.keys():
faces[name + '_' + k] = d[k]
sew.Add(d[k].Shape())
sew.Perform()
shell = sew.SewedShape()
make_solid.Add(topods.Shell(shell))
gp = GProp_GProps()
#make_solid.Add(shell)
solid = make_solid.Solid()
brepgprop_VolumeProperties(shell, gp)
print gp.Mass()
return Part(name, faces, solid)
def _make_solid(shells):
if not isinstance(shells, (list, tuple)):
shells = [shells]
algo = BRepBuilderAPI_MakeSolid()
for s in shells:
algo.Add(s.Shell())
fixer = ShapeFix_Solid(algo.Solid())
fixer.Perform()
return Shape(fixer.Solid())
def named_cartesian_box(xmin=-10.,
xmax=10.,
ymin=-10.,
ymax=10.,
zmin=-10.,
zmax=10.):
from youbastard.geometry.Polyline3D import Polyline3D
from OCC.Core.BRepBuilderAPI import BRepBuilderAPI_Sewing, BRepBuilderAPI_MakeSolid
from OCC.Core.TopoDS import topods
from OCC.Core.BRepPrimAPI import BRepPrimAPI_MakeBox
p0 = Point((xmin, ymin, zmin))
p1 = Point((xmin, ymax, zmin))
p2 = Point((xmax, ymax, zmin))
p3 = Point((xmax, ymin, zmin))
p4 = Point((xmin, ymin, zmax))
p5 = Point((xmin, ymax, zmax))
p6 = Point((xmax, ymax, zmax))
p7 = Point((xmax, ymin, zmax))
pol_Xmin = Polyline3D([p0, p1, p5, p4, p0][::-1])
pol_Xmax = Polyline3D([p2, p3, p7, p6, p2][::-1])
pol_Ymin = Polyline3D([p1, p2, p6, p5, p1][::-1])
pol_Ymax = Polyline3D([p0, p4, p7, p3, p0][::-1])
pol_Zmin = Polyline3D([p0, p3, p2, p1, p0][::-1])
pol_Zmax = Polyline3D([p5, p6, p7, p4, p5][::-1])
dicoface = {
'Xmin': face_polyline3d(pol_Xmin).Shape(),
'Xmax': face_polyline3d(pol_Xmax).Shape(),
'Ymin': face_polyline3d(pol_Ymin).Shape(),
'Ymax': face_polyline3d(pol_Ymax).Shape(),
'Zmin': face_polyline3d(pol_Zmin).Shape(),
'Zmax': face_polyline3d(pol_Zmax).Shape()
}
sew = BRepBuilderAPI_Sewing()
make_solid = BRepBuilderAPI_MakeSolid()
for k in dicoface.keys():
sew.Add(dicoface[k])
sew.Perform()
shell = sew.SewedShape()
make_solid.Add(topods.Shell(shell))
box = make_solid.Solid()
box = BRepPrimAPI_MakeBox(gp_Pnt(xmin, ymin, zmin),
gp_Pnt(xmax, ymax, zmax))
return box, dicoface
def reconstruct_object(array):
from OCC.Core.BRepBuilderAPI import BRepBuilderAPI_Sewing, BRepBuilderAPI_MakeSolid
from OCC.Core.BRepGProp import brepgprop_VolumeProperties
from OCC.Core.GProp import GProp_GProps
from OCC.Core.TopoDS import topods
obj = BRepBuilderAPI_Sewing()
for i, si in enumerate(array):
obj.Add(si)
obj.Perform()
shell = obj.SewedShape()
make_solid = BRepBuilderAPI_MakeSolid()
make_solid.Add(topods.Shell(shell))
gp = GProp_GProps()
#make_solid.Add(shell)
solid = make_solid.Solid()
brepgprop_VolumeProperties(shell, gp)
print 'RECONSTRUCTED SOLID VOLUME :'
print gp.Mass()
return solid
def MakeSolidFromShell(shell):
ms = BRepBuilderAPI_MakeSolid()
ms.Add(topods.Shell(shell))
solid = ms.Solid()
return solid
def make_solid(*args):
sld = BRepBuilderAPI_MakeSolid(*args)
with assert_isdone(sld, 'failed to produce solid'):
result = sld.Solid()
sld.Delete()
return result