def _read(self, file_name):
"""Decide if we need to use ascii or binary in order to read file"""
mesh_builder = MeshBuilder()
scene_node = SceneNode()
self.load_file(file_name, mesh_builder, _use_numpystl = use_numpystl)
mesh = mesh_builder.build()
if use_numpystl:
verts = mesh.getVertices()
# In some cases numpy stl reads incorrectly and the result is that the Z values are all 0
# Add new error cases if you find them.
if numpy.amin(verts[:, 1]) == numpy.amax(verts[:, 1]):
# Something may have gone wrong in numpy stl, start over without numpy stl
Logger.log("w", "All Z coordinates are the same using numpystl, trying again without numpy stl.")
mesh_builder = MeshBuilder()
self.load_file(file_name, mesh_builder, _use_numpystl = False)
mesh = mesh_builder.build()
verts = mesh.getVertices()
if numpy.amin(verts[:, 1]) == numpy.amax(verts[:, 1]):
Logger.log("e", "All Z coordinates are still the same without numpy stl... let's hope for the best")
if mesh_builder.getVertexCount() == 0:
Logger.log("d", "File did not contain valid data, unable to read.")
return None # We didn't load anything.
scene_node.setMeshData(mesh)
Logger.log("d", "Loaded a mesh with %s vertices", mesh_builder.getVertexCount())
return scene_node
def read(self, file_name):
mesh_builder = MeshBuilder()
scene_node = SceneNode()
self.load_file(file_name, mesh_builder, _use_numpystl = use_numpystl)
mesh = mesh_builder.build()
if use_numpystl:
verts = mesh.getVertices()
# In some cases numpy stl reads incorrectly and the result is that the Z values are all 0
# Add new error cases if you find them.
if numpy.amin(verts[:, 1]) == numpy.amax(verts[:, 1]):
# Something may have gone wrong in numpy stl, start over without numpy stl
Logger.log("w", "All Z coordinates are the same using numpystl, trying again without numpy stl.")
mesh_builder = MeshBuilder()
self.load_file(file_name, mesh_builder, _use_numpystl = False)
mesh = mesh_builder.build()
verts = mesh.getVertices()
if numpy.amin(verts[:, 1]) == numpy.amax(verts[:, 1]):
Logger.log("e", "All Z coordinates are still the same without numpy stl... let's hope for the best")
if mesh_builder.getVertexCount() == 0:
Logger.log("d", "File did not contain valid data, unable to read.")
return None # We didn't load anything.
scene_node.setMeshData(mesh)
Logger.log("d", "Loaded a mesh with %s vertices", mesh_builder.getVertexCount())
return scene_node