def __init__(self, groups, fuzzy_val=None, include_subgroup=True):
if len(groups) < 2:
raise ValueError('Not enough groups to fuse. Need at least '
'two.')
bop = FuseShapes(fuzzy_val=fuzzy_val)
groups = list(groups)
parts1 = groups[0].get_parts(include_subgroup)
shapes1 = [part.shape for part in parts1]
shape1 = CompoundByShapes(shapes1).compound
bop.set_args([shape1])
tools = []
other_parts = []
for group in groups[1:]:
parts = group.get_parts(include_subgroup)
other_parts += parts
shapes = [part.shape for part in parts]
shape = CompoundByShapes(shapes).compound
tools.append(shape)
bop.set_tools(tools)
bop.build()
all_parts = parts1 + other_parts
all_shapes = [part.shape for part in all_parts]
rebuild = RebuildShapesByTool(all_shapes, bop)
for part in all_parts:
new_shape = rebuild.new_shape(part.shape)
part.set_shape(new_shape)
self._bop = bop
def debug(self, path='.'):
"""
Export files for debugging Boolean operations.
:param path:
:return:
"""
# Generate a suffix using timestamp
now = datetime.now()
timestamp = str(now.timestamp())
# Operation name for prefix
op = str(self.__class__.__name__)
# Info file
fn = ''.join([path, '/', op, '.info.', timestamp, '.txt'])
info = open(fn, 'w')
info.write('Date (M-D-Y): {}-{}-{}\n'.format(now.month, now.day,
now.year))
info.write('Operation: {}\n'.format(op))
info.write('Parallel: {}\n'.format(self._bop.RunParallel()))
info.write('Fuzzy value: {}\n'.format(self._bop.FuzzyValue()))
info.write('Nondestructive: {}\n'.format(self._bop.NonDestructive()))
# Errors and warnings report
msg_report = self._bop.GetReport()
for gravity in _gravities:
msg_list = msg_report.GetAlerts(gravity)
if msg_list.Size() == 0:
continue
info.write('Messages:\n')
for msg in msg_list:
info.write('\t{}\n'.format(msg.GetMessageKey()))
info.close()
# Avoid circular imports
from afem.exchange.brep import write_brep
from afem.topology.create import CompoundByShapes
# Arguments
args = self.arguments
if args:
shape1 = CompoundByShapes(args).compound
fn = ''.join([path, '/', op, '.shape1.', timestamp, '.brep'])
write_brep(shape1, fn)
# Tools
tools = self.tools
if tools:
shape2 = CompoundByShapes(tools).compound
fn = ''.join([path, '/', op, '.shape2.', timestamp, '.brep'])
write_brep(shape2, fn)
def fuse(self, *other_parts):
"""
Fuse with other surface parts and rebuild both.
:param afem.structure.entities.SurfacePart other_parts: The other
part(s).
:return: *True* if fused, *False* if not.
:rtype: bool
"""
# Putting the other parts in a compound avoids fusing them to each
# other
other_shapes = [part.shape for part in other_parts]
other_compound = CompoundByShapes(other_shapes).compound
fuse = FuseShapes(self._shape, other_compound)
if not fuse.is_done:
return False
# Rebuild the part shapes
parts = [self] + list(other_parts)
shapes = [part.shape for part in parts]
rebuild = RebuildShapesByTool(shapes, fuse)
for part in parts:
new_shape = rebuild.new_shape(part.shape)
part.set_shape(new_shape)
return True
def shared_edges(parts, others, as_compound=False):
"""
Collect the shared edges between two sets of parts.
:param collections.Sequence(afem.structure.entities.Part) parts: The
first set of parts.
:param collections.Sequence(afem.structure.entities.Part) others: The
other set of parts.
:param bool as_compound: Option to return the shared edges as a
compound.
:return: List of shared edges.
:rtype: list(afem.topology.entities.Edge) or
afem.topology.entities.Compound
"""
shape1 = CompoundByShapes([part.shape for part in parts]).compound
shape2 = CompoundByShapes([part.shape for part in others]).compound
return shape1.shared_edges(shape2, as_compound)
def parts_to_compound(parts):
"""
Convert the list of parts into a single compound using each of their
shapes.
:param collections.Sequence(afem.structure.entities.Part) parts: The
parts.
:return: The compound.
:rtype: afem.topology.entities.Compound
"""
return CompoundByShapes([part.shape for part in parts]).compound
def add_edges_on_face(self, e, f):
"""
:param collections.Sequence(afem.topology.entities.Edge) e: The edges.
:param afem.topology.entities.Face f: The face.
:return: None
"""
# Avoid circular imports
from afem.topology.create import CompoundByShapes
cmp = CompoundByShapes(e).compound
self._bop.Add(cmp.object, f.object)
def as_compound(self, include_subgroup=True):
"""
Build a Compound from all the parts of the group.
:param bool include_subgroup: Option to recursively include parts
from any subgroups.
:return: The parts as a compound.
:rtype: afem.topology.entities.Compound
"""
parts = self.get_parts(include_subgroup)
shapes = [part.shape for part in parts]
return CompoundByShapes(shapes).compound
def get_shape(self, include_subgroup=True):
"""
Get a shape derived from all parts in the group. This puts all the
parts into a single compound which could be used as the master shape
for the meshing process.
:param bool include_subgroup: Option to recursively include parts
from any subgroups.
:return: The part shapes as a compound.
:rtype: afem.topology.entities.Compound
"""
parts = self.get_parts(include_subgroup)
shapes = [part.shape for part in parts]
return CompoundByShapes(shapes).compound
def shared_edges(self, other, as_compound=False):
"""
Get edges shared between the two parts.
:param other: The other part or shape.
:type other: afem.structure.entities.Part or
afem.topology.entities.Shape
:param bool as_compound: Option to return the shared edges in a
compound.
:return: Shared edges.
:rtype: list(afem.topology.entities.Edge) or
afem.topology.entities.Compound
"""
other = shape_of_entity(other)
edges = self._shape.shared_edges(other)
if not as_compound:
return edges
return CompoundByShapes(edges).compound
def face_compound(self):
"""
:return: A compound containing the faces.
:rtype: afem.topology.entities.Compound
"""
return CompoundByShapes(self._shape.faces).compound
def edge_compound(self):
"""
:return: A compound containing the part edges.
:rtype: afem.topology.entities.Compound
"""
return CompoundByShapes(self.edges).compound