def compute(self):
# get faces
explorer = TopExp_Explorer()
explorer.Init(self._shape, TopAbs_FACE)
if self._map_faces_to_mesh: # one mesh per face
faces = []
while explorer.More():
current_face = explorer.Current()
faces.append(current_face)
explorer.Next()
# loop over faces
for face in faces:
face_tesselator = Tesselator(face)
self._indexed_face_sets.append(face_tesselator.ExportShapeToX3DIndexedFaceSet())
else: # only one mesh for the whole shape
shape_tesselator = Tesselator(self._shape)
self._indexed_face_sets.append(shape_tesselator.ExportShapeToX3DIndexedFaceSet())
def test_export_to_x3d_TriangleSet(self):
""" 3rd test : export a sphere to an X3D TriangleSet triangle mesh """
a_sphere = BRepPrimAPI_MakeBox(10., 10., 10.).Shape()
tess = Tesselator(a_sphere)
tess.Compute()
ifs = tess.ExportShapeToX3DIndexedFaceSet()
self.assert_(ifs.startswith("<TriangleSet"))
self.assert_("0 10 0" in ifs) # a vertex
self.assert_("0 0 1" in ifs) # a normal
def compute(self):
shape_tesselator = Tesselator(self._shape)
shape_tesselator.Compute(compute_edges=self._export_edges,
mesh_quality=self._mesh_quality)
self._triangle_sets.append(shape_tesselator.ExportShapeToX3DIndexedFaceSet())
# then process edges
if self._export_edges:
# get number of edges
nbr_edges = shape_tesselator.ObjGetEdgeCount()
for i_edge in range(nbr_edges):
edge_point_set = []
nbr_vertices = shape_tesselator.ObjEdgeGetVertexCount(i_edge)
for i_vert in range(nbr_vertices):
edge_point_set.append(shape_tesselator.GetEdgeVertex(i_edge, i_vert))
ils = ExportEdgeToILS(edge_point_set)
self._line_sets.append(ils)
