def importFromFileToMesh(path):
scene = pyassimp.load(path)
if len(scene.meshes) == 0:
print "assimp_importer: found no mesh, abort"
return None
elif len(scene.meshes) > 1:
print "assimp_importer: found %s meshes, abort", len(scene.meshes)
return None
else:
faces = scene.meshes[0].faces
vertices = scene.meshes[0].vertices
result = ROSMeshTriangleMesh()
for vertex in vertices:
ros_point = ROSPoint()
ros_point.x = vertex[0]
ros_point.y = vertex[1]
ros_point.z = vertex[2]
result.vertices.append(ros_point)
for face in faces:
if len(face.indices) != 3:
print "WARNING: Triangle contained $s instead of 3 indicies", len(face.indices)
ros_triangle = ROSTriangleIndices()
ros_triangle.vertex_indices = [face.indices[0], face.indices[1], face.indices[2]]
result.triangles.append(ros_triangle)
pyassimp.release(scene)
return result
def toTriangleMesh3D(geometry, is_text=False):
if not is_text:
geometry = db().execute(ST_AsText(geometry)).scalar()
mesh = TriangleMesh()
triangles = geometry.split(')),')
for triangle in triangles:
index = []
points = triangle.strip('TIN Z(((').strip('))').split(',')
for point in points[0:len(points) - 1]:
values = [float(x) for x in point.split()]
index.append(len(mesh.vertices))
point = Point()
point.x = values[0]
point.y = values[1]
point.z = values[2]
mesh.vertices.append(point)
indices = TriangleIndices()
indices.vertex_indices = index
mesh.triangles.append(indices)
return mesh
def toTriangleMesh3D(geometry, is_text = False):
if not is_text:
geometry = db().execute(ST_AsText(geometry)).scalar()
mesh = TriangleMesh()
triangles = geometry.split(')),')
for triangle in triangles:
index = []
points = triangle.strip('TIN Z(((').strip('))').split(',')
for point in points[0:len(points)-1]:
values = [float(x) for x in point.split()]
index.append(len(mesh.vertices))
point = Point()
point.x = values[0]
point.y = values[1]
point.z = values[2]
mesh.vertices.append(point)
indices = TriangleIndices()
indices.vertex_indices = index
mesh.triangles.append(indices)
return mesh
