def _createStructure(self):
"""
Creates and returns the structure (in this case a L{Group} object that
contains the nanotube chunk.
@return : group containing the nanotube chunk.
@rtype: L{Group}
@note: This needs to return a CNT object once that model is implemented
"""
# self.name needed for done message
if self.create_name_from_prefix:
# create a new name
name = self.name = gensym(self.prefix,
self.win.assy) # (in _build_struct)
self._gensym_data_for_reusing_name = (self.prefix, name)
else:
# use externally created name
self._gensym_data_for_reusing_name = None
# (can't reuse name in this case -- not sure what prefix it was
# made with)
name = self.name
# Create the model tree group node.
# Make sure that the 'topnode' of this part is a Group (under which the
# Nanotube group will be placed), if the topnode is not a group, make it
# a 'Group' (applicable to Clipboard parts). See part.py
# --Part.ensure_toplevel_group method. This is an important line
# and it fixes bug 2585
self.win.assy.part.ensure_toplevel_group()
ntSegment = NanotubeSegment(self.name,
self.win.assy,
self.win.assy.part.topnode,
editCommand=self)
try:
# Make the nanotube. <ntGroup> will contain one chunk:
# - Axis (Segment)
# No error checking here; do all error checking in _gatherParameters().
nanotube = self._gatherParameters()
position = V(0.0, 0.0, 0.0)
self.nanotube = nanotube # needed for done msg #@
ntChunk = nanotube.build(self.name, self.win.assy, position)
ntSegment.addchild(ntChunk)
#set some properties such as ntRise and its two endpoints.
#This information will be stored on the NanotubeSegment object so that
#it can be retrieved while editing this object.
#WARNING 2008-03-05: Since self._modifyStructure calls
#self._createStructure() If in the near future, we actually permit
#modifying a
#structure (such as a nanotube) without actually recreating the
#entire structure, then the following properties must be set in
#self._modifyStructure as well. Needs more thought.
#props =(nanotube.getChirality(),
# nanotube.getType(),
# nanotube.getEndings(),
# nanotube.getEndPoints())
ntSegment.setProps(nanotube.getParameters())
return ntSegment
except (PluginBug, UserError):
# Why do we need UserError here? Mark 2007-08-28
self._segmentList.remove(ntSegment)
ntSegment.kill_with_contents()
raise PluginBug("Internal error while trying to create Nanotube.")
def _createStructure(self):
"""
Creates and returns the structure (in this case a L{Group} object that
contains the nanotube chunk.
@return : group containing the nanotube chunk.
@rtype: L{Group}
@note: This needs to return a CNT object once that model is implemented
"""
# self.name needed for done message
if self.create_name_from_prefix:
# create a new name
name = self.name = gensym(self.prefix, self.win.assy) # (in _build_struct)
self._gensym_data_for_reusing_name = (self.prefix, name)
else:
# use externally created name
self._gensym_data_for_reusing_name = None
# (can't reuse name in this case -- not sure what prefix it was
# made with)
name = self.name
# Create the model tree group node.
# Make sure that the 'topnode' of this part is a Group (under which the
# Nanotube group will be placed), if the topnode is not a group, make it
# a 'Group' (applicable to Clipboard parts). See part.py
# --Part.ensure_toplevel_group method. This is an important line
# and it fixes bug 2585
self.win.assy.part.ensure_toplevel_group()
ntSegment = NanotubeSegment(self.name,
self.win.assy,
self.win.assy.part.topnode,
editCommand = self)
try:
# Make the nanotube. <ntGroup> will contain one chunk:
# - Axis (Segment)
# No error checking here; do all error checking in _gatherParameters().
nanotube = self._gatherParameters()
position = V(0.0, 0.0, 0.0)
self.nanotube = nanotube # needed for done msg #@
ntChunk = nanotube.build(self.name, self.win.assy, position)
ntSegment.addchild(ntChunk)
#set some properties such as ntRise and its two endpoints.
#This information will be stored on the NanotubeSegment object so that
#it can be retrieved while editing this object.
#WARNING 2008-03-05: Since self._modifyStructure calls
#self._createStructure() If in the near future, we actually permit
#modifying a
#structure (such as a nanotube) without actually recreating the
#entire structure, then the following properties must be set in
#self._modifyStructure as well. Needs more thought.
#props =(nanotube.getChirality(),
# nanotube.getType(),
# nanotube.getEndings(),
# nanotube.getEndPoints())
ntSegment.setProps(nanotube.getParameters())
return ntSegment
except (PluginBug, UserError):
# Why do we need UserError here? Mark 2007-08-28
self._segmentList.remove(ntSegment)
ntSegment.kill_with_contents()
raise PluginBug("Internal error while trying to create Nanotube.")
