# Copyright 2007-2008 Nanorex, Inc. See LICENSE file for details.
"""
DnaSegment.py
@author: Bruce, Ninad
@version: $Id$
@copyright: 2007-2008 Nanorex, Inc. See LICENSE file for details.
Note:
*DnaSegment has the following direct members --
-- DnaAxisChunks,
-- DnaSegmentMarkers
*It can also have following logical contents --
-- DnaStrandChunks (can be accessed using DnaAxisChunk.ladder)
-- DnaStrandMarkers
-- maybe some more?
"""
import foundation.env as env
from dna.model.DnaStrandOrSegment import DnaStrandOrSegment
from dna.model.DnaLadderRailChunk import DnaAxisChunk
from utilities.debug import print_compact_stack, print_compact_traceback
from model.chunk import Chunk
from model.chem import Atom
from model.bonds import Bond
from geometry.VQT import V, norm, vlen
from dna.model.Dna_Constants import getDuplexRiseFromNumberOfBasePairs
from utilities.icon_utilities import imagename_to_pixmap
from utilities.Comparison import same_vals
from utilities.constants import MODEL_PAM3
from dna.model.Dna_Constants import getNumberOfBasePairsFromDuplexLength
_superclass = DnaStrandOrSegment
class DnaSegment(DnaStrandOrSegment):
"""
Model object which represents a Dna Segment inside a Dna Group.
Internally, this is just a specialized Group containing various
subobjects, described in the superclass docstring.
Among its (self's) Group.members are its DnaAxisChunks and its
DnaSegmentMarkers, including exactly one controlling marker.
These occur in undefined order (??). Note that its DnaStrand
atoms are not inside it; they are easily found from the DnaAxisChunks.
"""
# This should be a tuple of classifications that appear in
# files_mmp._GROUP_CLASSIFICATIONS, most general first.
# See comment in class Group for more info. [bruce 080115]
_mmp_group_classifications = ('DnaSegment',)
_duplexRise = None
_basesPerTurn = None
# TODO: undo or copy code for those attrs,
# and updating them when the underlying structure changes.
# But maybe that won't be needed, if they are replaced
# by computing them from the atom geometry as needed.
# [bruce 080227 comment]
autodelete_when_empty = True
# (but only if current command permits that for this class --
# see comment near Group.autodelete_when_empty for more info,
# and implems of Command.keep_empty_group)
iconPath = "ui/modeltree/DnaSegment.png"
hide_iconPath = "ui/modeltree/DnaSegment-hide.png"
copyable_attrs = DnaStrandOrSegment.copyable_attrs + ('_duplexRise',
'_basesPerTurn')
def __init__(self, name, assy, dad, members = (), editCommand = None):
self._duplexRise = 3.18 #Default value.
self._basesPerTurn = 10 #Default value
_superclass.__init__(self,
name,
assy,
dad,
members = members,
editCommand = editCommand)
###BUG: not all callers pass an editCommand. It would be better
# to figure out on demand which editCommand would be appropriate.
# [bruce 080227 comment]
return
def edit(self):
"""
Edit this DnaSegment.
@see: DnaSegment_EditCommand
"""
commandSequencer = self.assy.w.commandSequencer
commandSequencer.userEnterCommand('DNA_SEGMENT')
assert commandSequencer.currentCommand.commandName == 'DNA_SEGMENT'
commandSequencer.currentCommand.editStructure(self)
def draw_highlighted(self, glpane, color):
"""
Draw the strand and axis chunks as highlighted. (Calls the related
methods in the chunk class)
@param: GLPane object
@param color: The highlight color
@see: Chunk.draw_highlighted()
@see: SelectChunks_GraphicsMode.draw_highlightedChunk()
@see: SelectChunks_GraphicsMode._get_objects_to_highlight()
"""
#Note: As of 2008-04-07, there is no 'highlightPolicy' for
#a DnaSegment like in DnaStrand.
#(Not needed but can be easily implemented)
for c in self.members:
if isinstance(c, DnaAxisChunk):
c.draw_highlighted(glpane, color)
def getNumberOfNucleotides(self):
"""
Method provided for conveneince. Returns the number of basepairs
of this dna segment.
@see: PM_DnaSearchResultTable
"""
return self.getNumberOfAxisAtoms()
def getNumberOfBasePairs(self):
#@REVIEW: Is it okay to simply return the number of axis atoms within
#the segment (like done below)? But what if there is a bare axis atom
#within the segment?In any case, the way we compute the numberOfBase
#pairs is again an estimatebased on the duplex length! (i.e. it doesn't
#count the individual base-pairs. BTW, a segment may even have a single
#strand,so the word basepair is not always correct. -- Ninad 2008-04-08
numberOfBasePairs = self.getNumberOfAxisAtoms()
return numberOfBasePairs
def getDefaultToolTipInfo(self):
"""
"""
tooltipString = ""
n = self.getNumberOfAxisAtoms()
tooltipString += "Parent segment: %s"%(self.name)
tooltipString += "
Number of axis atoms: %d"%(n)
return tooltipString
def getNumberOfAxisAtoms(self):
"""
Returns the number of axis atoms present within this dna segment
Returns None if more than one axis chunks are present
This is a temporary method until dna data model is fully working.
@see: DnaSegment_EditCommand.editStructure() where it is used.
"""
#THIS WORKS ONLY WITH DNA DATA MODEL. pre-dna data model implementation
#rfor this method not supported -- Ninad 2008-04-08
numberOfAxisAtoms = 0
for m in self.members:
if isinstance(m, DnaAxisChunk):
numberOfAxisAtoms += len(m.get_baseatoms())
return numberOfAxisAtoms
def isEmpty(self):
"""
Returns True if there are no axis chunks as its members.
"""
for m in self.members:
if isinstance(m, DnaAxisChunk):
return False
return True
#Following methods are likely to be revised in a fully functional dna data
# model. These methods are mainly created to get working many core UI
# operations for Rattlesnake. -- Ninad 2008-02-01
def kill(self):
"""
Overrides superclass method. For a Dnasegment , as of 2008-04-09,
the default implementation is that deleting a segment will delete
the segment along with its logical contents (see bug 2749).
"""
# It is tempting to call self.kill_with_contents , BUT DON'T CALL IT HERE!
# ...as kill_with_contents is used elsewhere (before bug 2749 NFR was
# suggested and it calls self.kill() at the end. So that will create
# infinite recursions.
### TODO: code cleanup/ refactoring to resolve kill_with_content issue
#The following block is copied over from self.kill_with_contents()
#It implements behavior suggested in bug 2749 (deleting a segment will
#delete the segment along with its logical contents )
#See method docsting above on why we shouldn't call that method instead
for member in self.members:
if isinstance(member, DnaAxisChunk):
ladder = member.ladder
try:
#See a note in dna_model.kill_strand_chunks. Should we
#instead call ladder.kill() and thus kill bothstrand
#and axis chunks. ?
ladder.kill_strand_chunks()
except:
print_compact_traceback("bug in killing the ladder chunk")
DnaStrandOrSegment.kill(self)
def kill_with_contents(self):
"""
Kill this Node including the 'logical contents' of the node. i.e.
the contents of the node that are self.members as well as non-members.
Example: A DnaSegment's logical contents are AxisChunks and StrandChunks
Out of these, only AxisChunks are the direct members of the DnaSegment
but the 'StrandChunks are logical contents of it (non-members) .
So, some callers may specifically want to delete self along with its
members and logical contents. These callers should use this method.
The default implementation just calls self.kill()
@see: B{Node.DnaSegment.kill_with_contents} which is overridden here
method.
@see: EditCommand._removeStructure() which calls this Node API method
@see: InsertDna_EditCommand._removeSegments()
@see: dna_model.DnaLadder.kill_strand_chunks() for a comment.
@see: A note in self.kill() about NFR bug 2749
"""
for member in self.members:
if isinstance(member, DnaAxisChunk):
ladder = member.ladder
try:
#See a note in dna_model.kill_strand_chunks. Should we
#instead call ladder.kill() and thus kill bothstrand
#and axis chunks. ?
ladder.kill_strand_chunks()
except:
print_compact_traceback("bug in killing the ladder chunk")
DnaStrandOrSegment.kill_with_contents(self)
def get_DnaSegments_reachable_thru_crossovers(self):
"""
Return a list of DnaSegments that are reachable through the crossovers.
@see: ops_select_Mixin.expandDnaComponentSelection()
@see: ops_select_Mixin.contractDnaComponentSelection()
@see: ops_select_Mixin._expandDnaStrandSelection()
@see:ops_select_Mixin._contractDnaStrandSelection()
@see: ops_select_Mixin._contractDnaSegmentSelection()
@see: DnaStrand.get_DnaStrandChunks_sharing_basepairs()
@see: DnaSegment.get_DnaSegments_reachable_thru_crossovers()
@see: NFR bug 2749 for details.
@see: SelectChunks_GraphicsMode.chunkLeftDouble()
"""
neighbor_segments = []
content_strand_chunks = self.get_content_strand_chunks()
for c in content_strand_chunks:
strand_rail = c.get_ladder_rail()
for atm in strand_rail.neighbor_baseatoms:
if not atm:
continue
axis_neighbor = atm.axis_neighbor()
if not axis_neighbor:
continue
dnaSegment = axis_neighbor.molecule.parent_node_of_class(DnaSegment)
if dnaSegment and dnaSegment is not self:
if dnaSegment not in neighbor_segments:
neighbor_segments.append(dnaSegment)
return neighbor_segments
def get_content_strand_chunks(self):
"""
"""
content_strand_chunks = []
for member in self.members:
if isinstance(member, DnaAxisChunk):
ladder = member.ladder
content_strand_chunks.extend(ladder.strand_chunks())
return content_strand_chunks
def getAllAxisAtoms(self):
allAtomList = []
for member in self.members:
if isinstance(member, DnaAxisChunk):
allAtomList.extend(member.atoms.values())
return allAtomList
def get_all_content_strand_rail_end_baseatoms(self):
"""
Return a list of all strand end baseatoms of the 'strand rails'
contained within this DnaSegment
"""
ladders = self.getDnaLadders()
strand_rails = []
for ladder in ladders:
strand_rails.extend(ladder.strand_rails)
strand_atoms = []
for rail in strand_rails:
strand_atoms.extend(rail.end_baseatoms())
return strand_atoms
def get_all_content_three_prime_ends(self):
"""
Return a list of all the three prime end base atoms, contained within
this DnaSegment
@see:self.get_all_content_strand_rail_end_baseatoms()
@see:self.get_all_content_five_prime_ends()
"""
strand_atoms = self.get_all_content_strand_rail_end_baseatoms()
three_prime_end_atoms = filter(lambda atm: atm.isThreePrimeEndAtom(),
strand_atoms)
return three_prime_end_atoms
def get_all_content_five_prime_ends(self):
"""
Return a list of all the five prime end base atoms, contained within
this DnaSegment
@see:self.get_all_content_strand_rail_end_baseatoms()
@see:self.get_all_content_three_prime_ends()
"""
strand_atoms = self.get_all_content_strand_rail_end_baseatoms()
five_prime_end_atoms = filter(lambda atm: atm.isFivePrimeEndAtom(),
strand_atoms)
return five_prime_end_atoms
def is_PAM3_DnaSegment(self):
"""
Returns true if all the baseatoms in the DnaLadders of this segment
are PAM3 baseatoms (axis or strands) Otherwise returns False
@see: DnaSegment_EditCommand.model_changed()
@see: DnaSegment_EditCommand.isResizableStructure()
"""
is_PAM3 = False
ladderList = self.getDnaLadders()
if len(ladderList) == 0:
is_PAM3 = False
for ladder in ladderList:
pam_model = ladder.pam_model()
if pam_model == MODEL_PAM3:
is_PAM3 = True
else:
is_PAM3 = False
break
return is_PAM3
def getDnaLadders(self):
"""
Returns a list of all DnaLadders within this segment
"""
ladderList = []
for member in self.members:
if isinstance(member, DnaAxisChunk):
ladder = member.ladder
if ladder not in ladderList:
ladderList.append(ladder)
return ladderList
def get_wholechain(self):
"""
Return the 'wholechain' of this DnaSegment. Method provided for
convenience.
Delegates this to self.get_segment_wholechain()
"""
return self.get_segment_wholechain()
def get_segment_wholechain(self):
"""
@return: the 'wholechain' of this DnaSegment
(same as wholechain of each of its DnaAxisChunks),
or None if it doesn't have one
(i.e. if it's empty -- should never happen
if called on a live DnaSegment not modified since
the last dna updater run).
@see: Wholechain
@see: get_strand_wholechain
"""
for member in self.members:
if isinstance(member, DnaAxisChunk):
return member.wholechain
return None
def get_all_content_chunks(self):
"""
Return all the chunks contained within this DnaSegment. This includes
the chunks which are members of the DnaSegment groups, and also the ones
which are not 'members' but are 'logical contents' of this DnaSegment.
I.e. in dna data model, the DnaSegment only has DnaAxisChunks as its
members. But the DnaStrand chunks to which these axis atoms are
connected can be treated as logical contents of the DnaSegment.
This method returns all such chunks (including the direct members).
@see: DnaSegment_GraphicsMode.leftDrag() where this list is used to
drag the whole DnaSegment including the logical contents.
[overrides superclass method]
"""
all_content_chunk_list = []
for member in self.members:
if isinstance(member, DnaAxisChunk):
ladder = member.ladder
all_content_chunk_list.extend(ladder.all_chunks())
#Now search for any strand chunks whose strand atoms are not connected
#to the axis atoms, but still logically belong to the DnaSegment.
#A hairpin loop is an example of such a strand chunk
axis_end_atoms = self.getAxisEndAtoms()
for atm in axis_end_atoms:
if not atm:
continue
strand_atoms = atm.strand_neighbors()
for s_atom in strand_atoms:
rail = s_atom.molecule.get_ladder_rail()
next_rail_base_atoms = rail.neighbor_baseatoms
##print "*** next_rail_base_atoms = ", next_rail_base_atoms
for a in next_rail_base_atoms:
if a is None:
continue
##print "***a.axis_neighbor() = ", a.axis_neighbor()
if not a.axis_neighbor():
if a.molecule not in all_content_chunk_list:
all_content_chunk_list.append(a.molecule)
return all_content_chunk_list
def getAxisEndAtomAtPosition(self, position):
"""
Given a position, return the axis end atom at that position (if it
exists)
"""
axisEndAtom = None
endAtom1, endAtom2 = self.getAxisEndAtoms()
for atm in (endAtom1, endAtom2):
if atm is not None and same_vals(position, atm.posn()):
axisEndAtom = atm
break
return axisEndAtom
def getOtherAxisEndAtom(self, axisEndAtom):
"""
Return the axis end atom at the opposite end
@param axisEndAtom: Axis end atom at a given end. We will use this to
find the axis end atom at the opposite end.
"""
#@TODO:
#1. Optimize this further?
#2. Can a DnaSegment have more than two axis end atoms?
#I guess 'No' . so okay to do the following -- Ninad 2008-03-24
other_axisEndAtom = None
endAtom1, endAtom2 = self.getAxisEndAtoms()
for atm in (endAtom1, endAtom2):
if atm is not None and not atm is axisEndAtom:
other_axisEndAtom = atm
return other_axisEndAtom
def getAxisEndAtoms(self):
"""
THIS RETURNS AXIS END ATOMS ONLY FOR DNA DATA MODEL.
DOESN'T ANYMORE SUPPORT THE PRE DATA MODEL CASE -- 2008-03-24
"""
#pre dna data model
##return self._getAxisEndAtoms_preDataModel()
#post dna data model
return self._getAxisEndAtoms_postDataModel()
def _getAxisEndAtoms_postDataModel(self):
"""
"""
atm1, atm2 = self.get_axis_end_baseatoms()
#Figure out which end point (atom) is which. endPoint1 will be the
#endPoint
#on the left side of the 3D workspace and endPoint2 is the one on
#the 'more right hand side' of the 3D workspace.
#It uses some code from bond_constants.bonded_atoms_summary
# [following code is also duplicated in a method below]
if atm1 and atm2:
atmPosition1 = atm1.posn()
atmPosition2 = atm2.posn()
glpane = self.assy.o
quat = glpane.quat
vec = atmPosition2 - atmPosition1
vec = quat.rot(vec)
if vec[0] < 0.0:
atm1, atm2 = atm2, atm1
elif vec[0] == 0.0 and vec[1] < 0.0:
atm1, atm2 = atm2, atm1
return atm1, atm2
def _getAxisEndAtoms_preDataModel(self):
"""
To be removed post dna data model
"""
endAtomList = []
for member in self.members:
if isinstance(member, Chunk) and member.isAxisChunk():
for atm in member.atoms.itervalues():
if atm.element.symbol == 'Ae3':
endAtomList.append(atm)
if len(endAtomList) == 2:
atm1 = endAtomList[0]
atm2 = endAtomList[1]
#Figure out which end point (atom) is which. endPoint1 will be the
#endPoint
#on the left side of the 3D workspace and endPoint2 is the one on
#the 'more right hand side' of the 3D workspace.
#It uses some code from bond_constants.bonded_atoms_summary
# [following code is also duplicated in a method below]
atmPosition1 = atm1.posn()
atmPosition2 = atm2.posn()
glpane = self.assy.o
quat = glpane.quat
vec = atmPosition2 - atmPosition1
vec = quat.rot(vec)
if vec[0] < 0.0:
atm1, atm2 = atm2, atm1
return atm1, atm2
elif len(endAtomList) > 2:
print_compact_stack("bug: The axis chunk has more than 2 'Ae3' atoms: ")
else:
return None, None
return endAtomList
def getStrandEndAtomsFor(self, strand):
"""
TODO: To be revised/ removed post dna data model.
returns the strand atoms connected to the ends of the
axis atoms. The list could return 1 or 2 strand atoms. The caller
should check for the correctness.
@see: DnaStrand_EditCommand.updateHandlePositions()
"""
assert strand.dad is self
strandNeighbors = []
strandEndAtomList = []
for axisEndAtom in self.getAxisEndAtoms():
strandNeighbors = axisEndAtom.strand_neighbors()
strand_end_atom_found = False
for atm in strandNeighbors:
if atm.molecule is strand:
strandEndAtomList.append(atm)
strand_end_atom_found = True
break
if not strand_end_atom_found:
strandEndAtomList.append(None)
return strandEndAtomList
def getStrandEndPointsFor(self, strand):
"""
TODO: To be revised/ removed post dna data model.
@see: DnaStrand_EditCommand.updateHandlePositions()
@see: self.getStrandEndAtomsFor()
"""
strandEndAtoms = self.getStrandEndAtomsFor(strand)
strandEndPoints = []
for atm in strandEndAtoms:
if atm is not None:
strandEndPoints.append(atm.posn())
else:
strandEndPoints.append(None)
return strandEndPoints
def getAxisEndPoints(self):
"""
Derives and returns the two axis end points based on the atom positions
of the segment.
@note: this method definition doesn't fully make sense, since a segment
can be a ring.
@return: a list containing the two endPoints of the Axis.
@rtype: list
"""
endpoint1, endpoint2 = self._getAxisEndPoints_preDataModel()
if endpoint1 is None:
return self._getAxisEndPoints_postDataModel()
else:
return (endpoint1, endpoint2)
def _getAxisEndPoints_preDataModel(self):
#Temporary implementation that uses chunk class to distinguish an
#axis chunk from an ordinary chunk. This method can be revised after
#Full dna data model implementation -- Ninad 2008-01-21
# (Note, this seems to assume that the axis is a single chunk.
# This may often be true pre-data-model, but I'm not sure --
# certainly it's not enforced, AFAIK. This will print_compact_stack
# when more than one axis chunk is in a segment. [bruce 080212 comment])
endPointList = []
for atm in self.getAxisEndAtoms():
if atm is not None:
endPointList.append(atm.posn())
else:
endPointList.append(None)
if len(endPointList) == 2:
atmPosition1 = endPointList[0]
atmPosition2 = endPointList[1]
return atmPosition1, atmPosition2
return None, None
def _getAxisEndPoints_postDataModel(self): # bruce 080212
atom1, atom2 = self.get_axis_end_baseatoms()
if atom1 is None:
return None, None
atmPosition1, atmPosition2 = [atom.posn() for atom in (atom1, atom2)]
# following code is duplicated from a method above
glpane = self.assy.o
quat = glpane.quat
vec = atmPosition2 - atmPosition1
vec = quat.rot(vec)
if vec[0] < 0.0:
atmPosition1, atmPosition2 = atmPosition2, atmPosition1
return atmPosition1, atmPosition2
def get_axis_end_baseatoms(self): # bruce 080212
"""
Return a sequence of length 2 of atoms or None:
for a chain: its two end baseatoms (arbitrary order);
for a ring: None, None.
"""
# this implem only works in the dna data model
# find an arbitrary DnaAxisChunk among our members
# (not the best way in theory, once we have proper attrs set,
# namely our controlling marker)
member = None
for member in self.members:
if isinstance(member, DnaAxisChunk):
break
if not isinstance(member, DnaAxisChunk):
# no DnaAxisChunk members (should not happen)
return None, None
end_baseatoms = member.wholechain.end_baseatoms()
if not end_baseatoms:
# ring
return None, None
# chain
return end_baseatoms
def getAxisVector(self, atomAtVectorOrigin = None):
"""
Returns the unit axis vector of the segment (vector between two axis
end points)
"""
endPoint1, endPoint2 = self.getAxisEndPoints()
if endPoint1 is None or endPoint2 is None:
return V(0, 0, 0)
if atomAtVectorOrigin is not None:
#If atomAtVectorOrigin is specified, we will return a vector that
#starts at this atom and ends at endPoint1 or endPoint2 .
#Which endPoint to choose will be dicided by the distance between
#atomAtVectorOrigin and the respective endPoints. (will choose the
#frthest endPoint
origin = atomAtVectorOrigin.posn()
if vlen(endPoint2 - origin ) > vlen(endPoint1 - origin):
return norm(endPoint2 - endPoint1)
else:
return norm(endPoint1 - endPoint2)
return norm(endPoint2 - endPoint1)
def setProps(self, props):
"""
Sets some properties. These will be used while editing the structure.
(but if the structure is read from an mmp file, this won't work. As a
fall back, it returns some constant values)
@see: InsertDna_EditCommand.createStructure which calls this method.
@see: self.getProps, DnaSegment_EditCommand.editStructure
"""
duplexRise, basesPerTurn = props
self.setDuplexRise(duplexRise)
self.setBasesPerTurn(basesPerTurn)
def getProps(self):
"""
Returns some properties such as duplexRise. This is a temporary
@see: DnaSegment_EditCommand.editStructure where it is used.
@see: DnaSegment_PropertyManager.getParameters
@see: DnaSegmentEditCommand._createStructure
"""
props = (self.getBasesPerTurn(),
self.getDuplexRise() )
return props
def getDuplexRise(self):
return self._duplexRise
def setDuplexRise(self, duplexRise):
if duplexRise:
self._duplexRise = duplexRise
def getBasesPerTurn(self):
return self._basesPerTurn
def setBasesPerTurn(self, basesPerTurn):
if basesPerTurn:
self._basesPerTurn = basesPerTurn
def setColor(self, color):
"""
Public method provided for convenience. Delegates the color
assignment task to self.setStrandColor()
@see: DnaOrCntPropertyManager._changeStructureColor()
"""
self.setSegmentColor(color)
def setSegmentColor(self, color):
"""
Set the color of the all the axis chunks within this DNA segment group
to the given color
@see: self.setColor()
"""
m = None
for m in self.members:
if isinstance(m, DnaAxisChunk):
m.setcolor(color)
def getColor(self):
"""
Returns the color of an arbitrary internal axis chunk. It iterates
over the axisChunk list until it gets a valid color. If no color
is assigned to any of its axis chunks, it simply returns None.
"""
color = None
for m in self.members:
if isinstance(m, DnaAxisChunk):
color = m.color
if color is not None:
break
return color
def writemmp_other_info_opengroup(self, mapping):
"""
"""
#This method is copied over from NanotubeSegment class .
#Retaining comments by Bruce in that method. Method added to write
#bases per turn and related info to the mmp file. -- Ninad 2008-06-26
#bruce 080507 refactoring (split this out of Group.writemmp)
# (I think the following condition is always true, but I didn't
# prove this just now, so I left in the test for now.)
encoded_classifications = self._encoded_classifications()
if encoded_classifications == "DnaSegment":
# Write the parameters into an info record so we can read and
#restore them in the next session.
mapping.write("info opengroup dnaSegment-parameters = %0.3f, %0.3f \n" % (self.getBasesPerTurn(),
self.getDuplexRise()))
pass
return
def readmmp_info_opengroup_setitem( self, key, val, interp ):
"""
[extends superclass method]
"""
#bruce 080507 refactoring (split this out of the superclass method)
if key == ['dnaSegment-parameters']:
# val includes all the parameters, separated by commas.
basesPerTurn, duplexRise = val.split(",")
self.setBasesPerTurn(float(basesPerTurn))
self.setDuplexRise(float(duplexRise))
else:
_superclass.readmmp_info_opengroup_setitem( self, key, val, interp)
return
def _computeDuplexRise(self):
"""
Compute the duplex rise
@see: self.getProps
TODO: THIS METHOD IS DEPRECATED AS OF 2008-03-05 AND IS SCHEDULED
FOR REMOVAL. IT MIGHT HAVE BUGS.
"""
duplexRise = None
numberOfAxisAtoms = self.getNumberOfAxisAtoms()
if numberOfAxisAtoms:
numberOfBasePairs = numberOfAxisAtoms
duplexLength = self.getSegmentLength()
duplexRise = getDuplexRiseFromNumberOfBasePairs(numberOfBasePairs,
duplexLength)
return duplexRise
def getSegmentLength(self):
"""
Returns the length of the segment.
"""
endPoint1, endPoint2 = self.getAxisEndPoints()
if endPoint1 is None:
#bruce 080212 mitigate a bug
env.history.orangemsg("Warning: segment length can't be determined")
return 10
segmentLength = vlen(endPoint1 - endPoint2)
return segmentLength
def isAncestorOf(self, obj):
"""
Checks whether the object is contained within the DnaSegment
Example: If the object is an Atom, it checks whether the
atom's chunk is a member of this DnaSegment (chunk.dad is self)
It also considers all the logical contents of the DnaSegment to determine
whetehr self is an ancestor. (returns True even for logical contents)
@see: self.get_all_content_chunks()
@see: DnaSegment_GraphicsMode.leftDrag
@Note: when dna data model is fully implemented, the code below that is
flaged 'pre-Dna data model' and thus the method should be revised
"""
#start of POST DNA DATA MODEL IMPLEMENTATION ===========================
c = None
if isinstance(obj, Atom):
c = obj.molecule
elif isinstance(obj, Bond):
chunk1 = obj.atom1.molecule
chunk2 = obj.atom1.molecule
if chunk1 is chunk2:
c = chunk1
elif isinstance(obj, Chunk):
c = obj
if c is not None:
if c in self.get_all_content_chunks():
return True
#end of POST DNA DATA MODEL IMPLEMENTATION =============================
#start of PRE- DNA DATA MODEL IMPLEMENTATION ===========================
#NOTE: Need to check if the isinstance checks are acceptable (apparently
#don't add any import cycle) Also this method needs to be revised
#after we completely switch to dna data model.
if isinstance(obj, Atom):
chunk = obj.molecule
if chunk.dad is self:
return True
else:
ladder = getattr(chunk, 'ladder', None)
if ladder:
pass
elif isinstance(obj, Bond):
chunk1 = obj.atom1.molecule
chunk2 = obj.atom1.molecule
if (chunk1.dad is self) or (chunk2.dad is self):
return True
elif isinstance(obj, Chunk):
if obj.dad is self:
return True
#end of PRE- DNA DATA MODEL IMPLEMENTATION ===========================
return False
def node_icon(self, display_prefs):
del display_prefs # unused
if self.all_content_is_hidden():
return imagename_to_pixmap( self.hide_iconPath)
else:
return imagename_to_pixmap( self.iconPath)
# end