def make_shell(*args):
shell = BRepBuilderAPI_MakeShell(*args)
st = ShapeToTopology()
with assert_isdone(shell, 'failed to produce shell'):
result = shell.Shell()
shell.Delete()
return st(result)
def sew_shapes(shapes, tolerance=0.001):
sew = BRepBuilderAPI_Sewing(tolerance)
for shp in shapes:
if isinstance(shp, list):
for i in shp:
sew.Add(i)
else:
sew.Add(shp)
sew.Perform()
print("n degenerated shapes", sew.NbDegeneratedShapes())
print("n deleted faces:", sew.NbDeletedFaces())
print("n free edges", sew.NbFreeEdges())
print("n multiple edges:", sew.NbMultipleEdges())
result = ShapeToTopology()(sew.SewedShape())
return result
def translate_topods_from_vector(brep_or_iterable, vec, copy=False):
'''
translate a brep over a vector
@param brep: the Topo_DS to translate
@param vec: the vector defining the translation
@param copy: copies to brep if True
'''
st = ShapeToTopology()
trns = gp_Trsf()
trns.SetTranslation(vec)
if issubclass(brep_or_iterable.__class__, TopoDS_Shape):
brep_trns = BRepBuilderAPI_Transform(brep_or_iterable, trns, copy)
brep_trns.Build()
return st(brep_trns.Shape())
else:
return [
translate_topods_from_vector(brep_or_iterable, vec, copy)
for i in brep_or_iterable
]
def make_loft(elements,
ruled=False,
tolerance=TOLERANCE,
continuity=GeomAbs_C2,
check_compatibility=True):
from OCC.Core.Core.BRepOffsetAPI import BRepOffsetAPI_ThruSections
sections = BRepOffsetAPI_ThruSections(False, ruled, tolerance)
for i in elements:
if isinstance(i, TopoDS_Wire):
sections.AddWire(i)
elif isinstance(i, TopoDS_Vertex):
sections.AddVertex(i)
else:
raise TypeError(
'elements is a list of TopoDS_Wire or TopoDS_Vertex, found a %s fool'
% i.__class__)
sections.CheckCompatibility(check_compatibility)
sections.SetContinuity(continuity)
sections.Build()
with assert_isdone(sections, 'failed lofting'):
te = ShapeToTopology()
loft = te(sections.Shape())
return loft
r"""IGES file writing tests"""
import glob
import os.path
import pytest
from OCC import BRepPrimAPI
from OCC import TopoDS
from OCC import gp
from OCCUtils.Topology import Topo
from OCCUtils.types_lut import ShapeToTopology
from OCCDataExchange.iges import IgesExporter, IgesImporter
from OCCDataExchange.utils import path_from_file
shape_to_topology = ShapeToTopology()
@pytest.yield_fixture(autouse=True)
def cleandir():
r"""Clean the tests output directory
autouse=True insure this fixture wraps every test function
yield represents the function call
"""
yield # represents the test function call
output_dir = os.path.join(os.path.dirname(os.path.abspath(__file__)), "models_out")
files = glob.glob(output_dir + "\*")
print("Cleaning output directory ...")
for f in files:
os.remove(f)
GeomAbs_G1, GeomAbs_G2, GeomAbs_C1)
from OCC.Core.TopAbs import TopAbs_REVERSED
from OCC.Core.TopoDS import (TopoDS_Wire, TopoDS_Solid, TopoDS_Vertex,
TopoDS_Shape, TopoDS_Builder, TopoDS_Compound)
from OCC.Core.TColgp import TColgp_SequenceOfVec, TColgp_HArray1OfPnt
from OCC.Core.gp import (gp_Vec, gp_Pnt, gp_Dir, gp_Trsf, gp_Ax1,
gp_Quaternion, gp_Circ, gp_Pln)
from OCCUtils.Common import (TOLERANCE, assert_isdone, to_tcol_, to_adaptor_3d,
vertex2pnt, smooth_pnts, points_to_bspline,
project_point_on_curve)
from OCCUtils.types_lut import ShapeToTopology
from OCCUtils.Topology import Topo
EPSILON = TOLERANCE = 1e-6
ST = ShapeToTopology()
def point_to_vector(self):
return gp_Vec(self.XYZ())
def vector_to_point(self):
return gp_Pnt(self.XYZ())
def dir_to_vec(self):
return gp_Vec(self)
def vec_to_dir(self):