def test_stl_exporter_happy_path(box_shape):
r"""Happy path"""
filename = path_from_file(__file__, "./models_out/box.sTl")
exporter = StlExporter(filename)
exporter.set_shape(box_shape)
exporter.write_file()
assert os.path.isfile(filename)
def test_stl_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.stl")
exporter = StlExporter(filename)
with pytest.raises(ValueError):
exporter.set_shape(gp_Pnt(1, 1, 1))
def test_stl_exporter_happy_path_shape_subclass(box_shape):
r"""Happy path with a subclass of TopoDS_Shape"""
filename = path_from_file(__file__, "./models_out/box.stl")
exporter = StlExporter(filename)
solid = shape_to_topology(box_shape)
assert isinstance(solid, TopoDS_Solid)
exporter.set_shape(solid)
exporter.write_file()
assert os.path.isfile(filename)
def shape_to_stl(shape_, stl_file_, scale, ascii_mode_, factor_,
use_min_dim_):
r"""Write a single shape to an STL file
Parameters
----------
shape_
stl_file_
ascii_mode_
factor_
use_min_dim_
"""
exporter = StlExporter(filename=stl_file_, ascii_mode=ascii_mode_)
shape_ = scale_uniform(shape_, (0, 0, 0), scale, False)
# Must mesh ! Otherwise the exporter does not write anything!
mesh(shape_, factor=factor_, use_min_dim=use_min_dim_)
exporter.set_shape(shape_)
exporter.write_file()
def test_stl_exporter_overwrite(box_shape):
r"""Happy path with a subclass of TopoDS_Shape"""
filename = path_from_file(__file__, "./models_out/box.stl")
exporter = StlExporter(filename)
solid = shape_to_topology(box_shape)
assert isinstance(solid, TopoDS_Solid)
exporter.set_shape(solid)
exporter.write_file()
assert os.path.isfile(filename)
# read the written box.stl
importer = StlImporter(filename)
topo = Topo(importer.shape)
assert topo.number_of_shells == 1
# set a sphere and write again with same exporter
sphere = BRepPrimAPI_MakeSphere(10)
exporter.set_shape(sphere.Shape())
# this creates a file with a sphere only, this is STL specific
exporter.write_file()
# check that the file contains the sphere only
importer = StlImporter(filename)
topo = Topo(importer.shape)
assert topo.number_of_shells == 1
# create a new exporter and overwrite with a box only
filename = path_from_file(__file__, "./models_out/box.stl")
exporter = StlExporter(filename)
solid = shape_to_topology(box_shape)
exporter.set_shape(solid)
exporter.write_file()
assert os.path.isfile(filename)
# check the file only contains a box
importer = StlImporter(filename)
topo = Topo(importer.shape)
assert topo.number_of_shells == 1
#!/usr/bin/env python
# coding: utf-8
r"""Exporting a shape to STL"""
from __future__ import print_function
import logging
from OCC.Core.BRepPrimAPI import BRepPrimAPI_MakeBox
from aocxchange.stl import StlExporter
# from corelib.core.files import path_from_file
from corelibpy 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
my_box_shape = BRepPrimAPI_MakeBox(50, 50, 50).Shape()
# Export to STL. If ASCIIMode is set to False, then binary format is used.
filename = path_from_file(__file__, "./models_out/result_export.stl")
my_stl_exporter = StlExporter(filename, ascii_mode=True)
my_stl_exporter.set_shape(my_box_shape)
my_stl_exporter.write_file()
