def perform_union_mesh(self, list_objects_names, name, verbose=False):
"""
Perform the union of all shapes given in list_objects_names.
The final shape is called name. Intermediate shapes are called shape_n,
where n is an indice that indicates how many fusions left to do
"""
number_of_shapes = len(list_objects_names) # 2 (3) shapes
number_of_fusions = number_of_shapes - 1 # is 1 (2) fusions to do
if verbose:
print "Number of fusions to do: " + str(number_of_fusions)
if not number_of_fusions > 0:
raise("Not enough shapes to do a fusion!")
# take care of the intermediate fusions
while number_of_fusions > 1: # if 2 fusions, the first is the -1
# intermediate shape name
intermediate_shape_name = name + "_minus" + str(number_of_fusions - 1)
if verbose:
print "Generate intermediate shape: " + intermediate_shape_name
print "Object 1 for fusion: " + list_objects_names[0]
print "Object 2 for fusion: " + list_objects_names[1]
# create intermediate shape
mesh_1 = self.document.getObject(list_objects_names[0]).Mesh
mesh_2 = self.document.getObject(list_objects_names[1]).Mesh
mesh_interm = OpenSCADUtils.meshoptempfile('union', (mesh_1, mesh_2))
self.document.addObject("Mesh::Feature", intermediate_shape_name)
self.document.getObject(intermediate_shape_name).Mesh = mesh_interm
self.document.recompute()
# add it at the end of the list of shapes to fusion
list_objects_names.append(intermediate_shape_name)
# take away the two first elements of the list to fusion
list_objects_names = list_objects_names[2:]
# one less fusion to do
number_of_fusions -= 1
# take care of the last fusion
if verbose:
print "Do last fusion"
print "Object 1 for fusion: " + list_objects_names[0]
print "Object 2 for fusion: " + list_objects_names[1]
# create intermediate shape
mesh_1 = self.document.getObject(list_objects_names[0]).Mesh
mesh_2 = self.document.getObject(list_objects_names[1]).Mesh
mesh_interm = OpenSCADUtils.meshoptempfile('union', (mesh_1, mesh_2))
self.document.addObject("Mesh::Feature", name)
self.document.getObject(name).Mesh = mesh_interm
self.document.recompute()
def fuse(meshes):
meshes1 = []
meshes2 = []
for mesh in meshes:
o = orientation(mesh)
if o == "Forward":
meshes1.append(mesh)
elif o == "Reversed":
meshes2.append(complement(mesh))
else:
raise TypeError
# # broken
# mesh1 = None
# if len(meshes1) > 0:
# mesh1 = reduce(Mesh.Mesh.unite, meshes1)
# mesh2 = None
# if len(meshes2) > 0:
# mesh2 = reduce(Mesh.Mesh.intersect, meshes2)
# if mesh1 is None and mesh2 is None:
# return None
# elif mesh1 is None:
# return complement(mesh2)
# elif mesh2 is None:
# return mesh1
# else:
# return complement(mesh2.difference(mesh1))
mesh1 = None
if len(meshes1) > 1:
mesh1 = OpenSCADUtils.meshoptempfile('union', meshes1)
elif len(meshes1) == 1:
mesh1 = meshes1[0]
mesh2 = None
if len(meshes2) > 1:
mesh2 = OpenSCADUtils.meshoptempfile('intersection', meshes2)
elif len(meshes2) == 1:
mesh2 = meshes2[0]
if mesh1 is None and mesh2 is None:
return None
elif mesh1 is None:
return complement(mesh2)
elif mesh2 is None:
return mesh1
else:
return complement(OpenSCADUtils.meshoptempfile('difference', [mesh2, mesh1]))
def applyOperationToMesh(self, mesh):
if not self.Object.Enabled:
return mesh
import OpenSCADUtils
openscadOperation = MODE_MAPPING[self.Object.Mode]
return OpenSCADUtils.meshoptempfile(openscadOperation, (mesh, self.getMesh()))
def perform_cut_mesh(self, base, tool, name, verbose=False):
"""
Perform the cut (substraction) of tool on base as the name object
"""
if verbose:
print "Doing a cut on " + base + " using " + tool
mesh_1 = self.document.getObject(base).Mesh
mesh_2 = self.document.getObject(tool).Mesh
mesh_interm = OpenSCADUtils.meshoptempfile('difference', (mesh_1, mesh_2))
self.document.addObject("Mesh::Feature", name)
self.document.getObject(name).Mesh = mesh_interm
self.document.recompute()