def test_iges_exporter_happy_path(box_shape):
r"""Happy path"""
filename = path_from_file(__file__, "./models_out/box.IgS")
exporter = IgesExporter(filename)
exporter.add_shape(box_shape)
exporter.write_file()
assert os.path.isfile(filename)
def test_iges_exporter_adding_not_a_shape(box_shape):
r"""Adding something to the exporter that is not a TopoDS_Shape
or a subclass"""
filename = path_from_file(__file__, "./models_out/box.igs")
exporter = IgesExporter(filename)
with pytest.raises(ValueError):
exporter.add_shape(gp_Pnt(1, 1, 1))
def test_iges_exporter_happy_path_shape_subclass(box_shape):
r"""Happy path with a subclass of TopoDS_Shape"""
filename = path_from_file(__file__, "./models_out/box.igs")
exporter = IgesExporter(filename)
solid = shape_to_topology(box_shape)
assert isinstance(solid, TopoDS_Solid)
exporter.add_shape(solid)
exporter.write_file()
assert os.path.isfile(filename)
def test_iges_exporter_overwrite(box_shape):
r"""Happy path with a subclass of TopoDS_Shape"""
filename = path_from_file(__file__, "./models_out/box.igs")
exporter = IgesExporter(filename)
solid = shape_to_topology(box_shape)
assert isinstance(solid, TopoDS_Solid)
exporter.add_shape(solid)
exporter.write_file()
assert os.path.isfile(filename)
# read the written box.igs
importer = IgesImporter(filename)
topo_compound = Topo(importer.compound)
assert topo_compound.number_of_faces == 6
assert topo_compound.number_of_edges == 24
# add a sphere and write again with same exporter
sphere = BRepPrimAPI_MakeSphere(10)
exporter.add_shape(sphere.Shape())
exporter.write_file() # this creates a file with a box and a sphere
# check that the file contains the box and the sphere
importer = IgesImporter(filename)
topo_compound = Topo(importer.compound)
assert topo_compound.number_of_faces == 7 # 6 from box + 1 from sphere
# create a new exporter and overwrite with a box only
filename = path_from_file(__file__, "./models_out/box.igs")
exporter = IgesExporter(filename)
solid = shape_to_topology(box_shape)
exporter.add_shape(solid)
exporter.write_file()
assert os.path.isfile(filename)
# check the file only contains a box
importer = IgesImporter(filename)
topo_compound = Topo(importer.compound)
assert topo_compound.number_of_faces == 6 # 6 from box
#!/usr/bin/env python
# coding: utf-8
r"""Exporting multiple shapes to IGES"""
import logging
import OCC.Core.BRepPrimAPI
from aocxchange.iges import IgesExporter
from corelib.core.files import path_from_file
logging.basicConfig(level=logging.DEBUG,
format='%(asctime)s :: %(levelname)6s :: %(module)20s :: '
'%(lineno)3d :: %(message)s')
# First create a simple shape to export
box_shape = OCC.BRepPrimAPI.BRepPrimAPI_MakeBox(50, 50, 50).Shape()
sphere_shape = OCC.BRepPrimAPI.BRepPrimAPI_MakeSphere(20).Shape()
# Export to IGES
filename = path_from_file(__file__, "./models_out/result_export_multi.iges")
my_iges_exporter = IgesExporter(filename, format_="5.3")
my_iges_exporter.add_shape(box_shape)
my_iges_exporter.add_shape(sphere_shape)
my_iges_exporter.write_file()