def export_step(self, fn, label_solids=True, label_faces=False,
names=None):
"""
Export the OpenVSP model as a STEP file using Extended Data Exchange.
Each OpenVSP component will be a named product in the STEP file
structure.
:param str fn: The filename.
:param bool label_solids: Option to label the solid bodies in the
STEP entity. The name will be the same as the OpenVSP component.
:param bool label_faces: Option to label the faces in each of the
solids. Each face of the solid body will be labeled "Face 1",
"Face 2", etc.
:param names: List of Body names that will be included in export. If
*None* then all are exported.
:type names: collections.Sequence(str) or None
:return: None.
"""
# Initialize the document
doc = XdeDocument()
# Get bodies to include
if names is None:
bodies = self.all_bodies
else:
bodies = [self.get_body(name) for name in names]
# Gather OpenVSP bodies and names and build single compound
solids = []
names = []
for body in bodies:
solids.append(body.shape)
names.append(body.name)
cmp = Compound.by_shapes(solids)
# Add main shape and top-level assembly
main = doc.add_shape(cmp, 'Vehicle')
# Each body should be a product so names are transferred to other
# CAD systems
for name, solid in zip(names, solids):
doc.add_subshape(main, solid, name)
# Transfer the document and then modify the STEP item name directly
# rather than using a label. This only applies when labeling
# sub-shapes.
doc.transfer_step()
if label_solids or label_faces:
for name, solid in zip(names, solids):
if label_solids:
doc.set_shape_name(solid, name)
if label_faces:
i = 1
for f in solid.faces:
name = ' '.join(['Face', str(i)])
doc.set_shape_name(f, name)
i += 1
doc.write_step(fn)
def save_model(cls, fn, binary=True):
"""
Save the model.
:param str fn: The filename.
:param bool binary: If *True*, the document will be saved in a binary
format. If *False*, the document will be saved in an XML format.
:return: *True* if saved, *False* otherwise.
:rtype: bool
"""
group = cls.get_master()
# Create document and application
doc = XdeDocument(binary)
# Store parts as top-level shapes
# TODO Support group hierarchy
parts = group.get_parts()
for part in parts:
name = doc.add_shape(part.shape, part.name, False)
name.set_string(part.type)
name.set_color(part.color)
# Reference curve
if part.has_cref:
edge = EdgeByCurve(part.cref).edge
name = doc.add_shape(edge, part.name, False)
name.set_string('CREF')
# Reference surface
if part.has_sref:
face = FaceBySurface(part.sref).face
name = doc.add_shape(face, part.name, False)
name.set_string('SREF')
return doc.save_as(fn)
def save_bodies(fn, bodies, binary=True):
"""
Save Body instances.
:param str fn: The filename.
:param collections.Sequence(afem.oml.entities.Body) bodies: The Body
instances
:param bool binary: If *True*, the document will be saved in a binary
format. If *False*, the document will be saved in an XML format.
:return: *True* if saved, *False* otherwise.
:rtype: bool
.. note::
This method only saves the name, shape, reference surface, and
color of the Body. Other user-defined metadata is currently not
saved.
"""
from afem.exchange.xde import XdeDocument
# Create document
doc = XdeDocument(binary)
# Add the bodies
for body in bodies:
label = doc.add_shape(body.shape, body.name, False)
label.set_string('Body')
label.set_color(body.color)
# Sref
if body.sref is not None:
face = FaceBySurface(body.sref).face
label = doc.add_shape(face, body.name, False)
label.set_string('SREF')
return doc.save_as(fn)