def restoreMidasBase():
formattedPositions = {
'session-start':
(1.155351159691909, 8.86882709175692,
(1.3395405316555724, 3.9505837500000003, 8.726595046431203),
(16.370238401985695, 1.165040645195333), 8.726595046431203, {
(2, 0):
((-6.879216832661181, 1.2434449094635127, 13.102330090486209),
(-0.7791729689523519, 0.43582107891998634, -0.450499136095727,
109.18718989286837)),
(1, 0):
((-6.879216832661183, 1.2434449094635125, 13.10233009048621),
(-0.7791729689523519, 0.43582107891998634, -0.45049913609572706,
109.18718989286837)),
(0, 0):
((-6.879216832661183, 1.2434449094635125, 13.10233009048621),
(-0.7791729689523519, 0.43582107891998634, -0.45049913609572706,
109.18718989286837))
}, {
(0, 0, 'Molecule'):
(False, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, False, 5.0)
}, 4, (1.3892258043886745, 3.93424088720653,
8.767639523590514), False, 18.84968453493425)
}
import Midas
Midas.restoreMidasBase(formattedPositions)
def show_saxs_profile(molecules, selected_only, epath, expath, dialog=None):
if len(molecules) <= 2:
name = ', '.join([m.name for m in molecules])
else:
name = '%d models' % len(molecules)
import tempfile, os
fd, pdbpath = tempfile.mkstemp(suffix='.pdb')
os.close(fd)
import Midas
Midas.write(molecules, molecules[0], pdbpath, selOnly=selected_only)
if not epath:
# Use web services if no executable is given
if dialog is None:
dialog = PlotDialog()
ProfileOpalService(pdbpath, expath, name, dialog.figure)
else:
cmd = '%s %s %s' % (epath, pdbpath, expath)
from chimera.replyobj import info, warning
info('Executing command: %s\n' % cmd)
status = os.system(cmd)
if status != 0:
warning('Error %d executing command "%s"' % (status, cmd))
return dialog
if expath:
from os.path import basename
ppath = pdbpath[:-4] + '_' + basename(expath)
p = read_profile(ppath, 3)
else:
ppath = pdbpath + '.dat'
p = read_profile(ppath, 2)
plot_profile(p, name, dialog.figure)
return dialog
def render_callback(self, frame):
try:
self.molecule.deleteCoordSet(self.molecule.coordSets[frame])
except:
pass
self.molecule.LoadFrame(frame + 1)
Midas.match("#0:1-545", "#1:1-545")
Midas.undisplay("#0")
Midas.color("byatom", "#0")
Midas.undisplay("#0.=H=")
Midas.wait(1)
t = time.time()
pct_complete = self.frames_done / float(self.frames_total) * 100
if self.frames_done:
time_to_complete = (t - self.t0) / self.frames_done * (
self.frames_total - self.frames_done)
else:
time_to_complete = 0
self.f.write(
"Rendered frame %d (%d of %d, %d-%d), %5.2f%% complete, %5.2f seconds remaining)\n"
% (frame, self.frames_done, self.frames_total, start, stop,
pct_complete, time_to_complete))
self.f.flush()
self.frames_done += 1
return True
def show_saxs_profile(molecules, selected_only, epath, expath, dialog = None):
if len(molecules) <= 2:
name = ', '.join([m.name for m in molecules])
else:
name = '%d models' % len(molecules)
import tempfile, os
fd, pdbpath = tempfile.mkstemp(suffix = '.pdb')
os.close(fd)
import Midas
Midas.write(molecules, molecules[0], pdbpath, selOnly = selected_only)
if not epath:
# Use web services if no executable is given
if dialog is None:
dialog = PlotDialog()
ProfileOpalService(pdbpath, expath, name, dialog.figure)
else:
cmd = '%s %s %s' % (epath, pdbpath, expath)
from chimera.replyobj import info, warning
info('Executing command: %s\n' % cmd)
status = os.system(cmd)
if status != 0:
warning('Error %d executing command "%s"' % (status, cmd))
return dialog
if expath:
from os.path import basename
ppath = pdbpath[:-4] + '_' + basename(expath)
p = read_profile(ppath, 3)
else:
ppath = pdbpath + '.dat'
p = read_profile(ppath, 2)
plot_profile(p, name, dialog.figure)
return dialog
def pdbSelect(self):
# Identify selected pbid
sels = self.pdbListBox.getcurselection()
if not sels:
return
pdbid = sels[0]
# Set pdbid
self.pdbid = pdbid
# clean up previous pdbid selection
self.cleanupPdbSelect()
# Open Molecule if it isn't already open
if myvrml.getModelNo(pdbid.lower()) == None:
self.mol = myvrml.openMolecule(pdbid)
# highlight hetatms
Midas.represent("sphere", "#%d:.het" % self.mol.id)
Midas.represent("sphere", "#%d:ca" % self.mol.id)
# Get sites for the pdbid
self.sites = self.sitefile.getByPdbid(pdbid)
# Update listbox
siteStrings = [PrettySiteString(s) for s in self.sites]
self.siteListBox.setlist(siteStrings)
# Select all sites
self.siteListBox._listbox.select_set(0,'end')
self.siteSelect()
def restoreMidasBase():
formattedPositions = {
'session-start':
(1.0, 6.8744100148427, (46.179, 14.47249997139, 2.9510000367165),
(15.820337462141, -12.771337686254), 2.9510000367165, {
(0, 0): ((0.0, 0.0, 0.0), (0.0, 0.0, 1.0, 0.0)),
(102, 0): ((0.0, 0.0, 0.0), (0.0, 0.0, 1.0, 0.0)),
(2, 0): ((0.0, 0.0, 0.0), (0.0, 0.0, 1.0, 0.0)),
(101, 0): ((0.0, 0.0, 0.0), (0.0, 0.0, 1.0, 0.0)),
(1, 0): ((0.0, 0.0, 0.0), (0.0, 0.0, 1.0, 0.0)),
(100, 0): ((0.0, 0.0, 0.0), (0.0, 0.0, 1.0, 0.0))
}, {
(2, 0, 'Molecule'):
(False, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, False, 5.0),
(1, 0, 'Molecule'):
(False, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, False, 5.0),
(0, 0, 'Molecule'):
(False, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, False, 5.0),
(102, 0, 'Molecule'):
(False, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, False, 5.0),
(101, 0, 'Molecule'): (False, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, False,
5.0),
(100, 0, 'Molecule'): (False, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, False,
5.0)
}, 4, (46.669999921321875, 9.811500097751617,
1.5244998879432687), False, 17.567064639105)
}
import Midas
Midas.restoreMidasBase(formattedPositions)
def showSurface(warnLarge=True): if warnLarge: numSurfaces = len(selMolecules()) if numSurfaces > 20: import tkgui tkgui.SurfaceWarningDialog(numSurfaces, lambda : showSurface(warnLarge=False)) return empty = selection.currentEmpty() atoms = selAtoms() for a in atoms: a.surfaceDisplay = True import Midas Midas.surfaceVisibilityByAtom(atoms) plist = selectedSurfacePieces(implied = True) if plist: pa, pb = surfacePieceAtomsAndBonds(plist) if pa: # Don't surface atoms that have non-MSMS surface. paset = set(pa) atoms = [a for a in atoms if a not in paset] for p in plist: p.display = True p.model.display = True from Midas import surfaceNew molcat = list(set([(a.molecule, a.surfaceCategory) for a in atoms])) if empty: # Only surface main category if nothing selected. molcat = [mc for mc in molcat if mc[1] == 'main'] molcat.sort(lambda mc1,mc2: cmp(mc1[0].id, mc2[0].id)) for mol, cat in molcat: surfaceNew(cat, models=[mol])
def showSurface(warnLarge=True):
if warnLarge:
numSurfaces = len(selMolecules())
if numSurfaces > 20:
import tkgui
tkgui.SurfaceWarningDialog(numSurfaces,
lambda: showSurface(warnLarge=False))
return
empty = selection.currentEmpty()
atoms = selAtoms()
for a in atoms:
a.surfaceDisplay = True
import Midas
Midas.surfaceVisibilityByAtom(atoms)
plist = selectedSurfacePieces(implied=True)
if plist:
pa, pb = surfacePieceAtomsAndBonds(plist)
if pa:
# Don't surface atoms that have non-MSMS surface.
paset = set(pa)
atoms = [a for a in atoms if a not in paset]
for p in plist:
p.display = True
p.model.display = True
from Midas import surfaceNew
molcat = list(set([(a.molecule, a.surfaceCategory) for a in atoms]))
if empty:
# Only surface main category if nothing selected.
molcat = [mc for mc in molcat if mc[1] == 'main']
molcat.sort(lambda mc1, mc2: cmp(mc1[0].id, mc2[0].id))
for mol, cat in molcat:
surfaceNew(cat, models=[mol])
def __init__(self, hitfile, master=None):
Tkinter.Toplevel.__init__(self, master)
self.hitfile = hitfile
self.hitNodeList = HitNodeList(self.hitfile.hits)
self.maxScore = 0
self.models = []
basename = os.path.basename(hitfile.filename)
(pdbid, ext) = os.path.splitext(basename)
self.pdbid = pdbid
# Find MaxScore for slider
if self.hitfile.hits:
self.maxScore = max(self.hitfile.hits).score
# Open Molecule if it isn't already open
self.mol = None
if myvrml.getModelNo(pdbid.lower()) == None:
self.mol = myvrml.openMolecule(pdbid)
# highlight hetatms
Midas.represent("sphere", "#%d:.het" % self.mol.id)
Midas.represent("sphere", "#%d:ca" % self.mol.id)
self._buildGui()
def surfCmd(models, category): import Midas mols = filter(lambda m: isinstance(m, chimera.Molecule), models) Midas.surfaceNew(category, models=mols) for m in mols: for a in m.atoms: if a.surfaceCategory == category: a.surfaceDisplay = 1
def surfCmd(models, category):
import Midas
mols = filter(lambda m: isinstance(m, chimera.Molecule), models)
Midas.surfaceNew(category, models=mols)
for m in mols:
for a in m.atoms:
if a.surfaceCategory == category:
a.surfaceDisplay = 1
def _clearModelColor(self):
# obtain modelNo
modelNo = myvrml.getModelNo(self.pdbid.lower())
if modelNo == None:
return
# Reset model color
Midas.uncolor(None, "#%d" % modelNo)
Midas.unrescolor(None, "#%d" % modelNo)
def update_model_color(self):
model_id = openModels.listIds()[-1][0]
if not self.keep_selection:
Midas.color('orange red', '#%d' % self.movie_id)
else:
Midas.color('forest green', '#%d' % model_id)
Midas.color('byhet', '#%d' % model_id)
Midas.color('forest green', '#%d' % self.movie_id)
Midas.color('byhet', '#%d' % self.movie_id)
def zoomModel(self, model): self.manipulateModel(model) sel = selection.ItemizedSelection() for m in self.refModels: if m.openState.active: sel.add(m.atoms) for m in self.altModels: if m.openState.active: sel.add(m.atoms) Midas.window(sel)
def zoomModel(self, model):
self.manipulateModel(model)
sel = selection.ItemizedSelection()
for m in self.refModels:
if m.openState.active:
sel.add(m.atoms)
for m in self.altModels:
if m.openState.active:
sel.add(m.atoms)
Midas.window(sel)
def restoreWindowSize((width, height)):
import SimpleSession
if SimpleSession.preexistingModels:
return # Leave window size as is.
import Midas
Midas.windowsize((width, height))
def delay(arg1, arg2, arg3, width=width, height=height):
repairView(width, height)
from chimera.triggerSet import ONESHOT
return ONESHOT
chimera.triggers.addHandler('post-frame', delay, None)
def hideSurface(): atoms = selAtoms() for a in atoms: a.surfaceDisplay = False import Midas Midas.surfaceVisibilityByAtom(atoms) plist = selectedSurfacePieces(excludeMSMS = True, implied = True) for p in plist: p.display = False # Undisplay models that have all pieces undisplayed. for s in set([p.model for p in plist]): if not [p for p in s.surfacePieces if p.display]: s.display = False
def hideSurface():
atoms = selAtoms()
for a in atoms:
a.surfaceDisplay = False
import Midas
Midas.surfaceVisibilityByAtom(atoms)
plist = selectedSurfacePieces(excludeMSMS=True, implied=True)
for p in plist:
p.display = False
# Undisplay models that have all pieces undisplayed.
for s in set([p.model for p in plist]):
if not [p for p in s.surfacePieces if p.display]:
s.display = False
def html(*models):
if models:
for m in chimera.openModels.list():
m.display = False
chimera.selection.clearCurrent()
for model in models:
model.display = True
chimera.selection.addCurrent(model)
chimera.runCommand('focus sel')
chimera.viewer.windowSize = 800, 600
path = 'chimera_scene_export.html'
Midas.export(filename=path, format='WebGL')
return IFrame(path, *[x + 20 for x in chimera.viewer.windowSize])
def save(okay, dialog, lfits=lfits):
if okay:
paths = dialog.getPaths()
if paths:
path = paths[0]
import Midas
if len(lfits) > 1 and path.find('%d') == -1:
base, suf = os.path.splitext(path)
path = base + '_fit%d' + suf
for i, fit in enumerate(lfits):
p = path if len(lfits) == 1 else path % (i + 1)
fit.place_models(self.session)
Midas.write(fit.fit_molecules(),
relModel=fit.volume,
filename=p)
def doMidasCommand(self, cmd):
""" 'cmd' is the text of a Midas command
This function will execute 'cmd' using the Midas command line
"""
from Midas import midas_text
#code = None
try:
#code = Midas.midas_text.makeCommand(cmd)
if midas_text.makeCommand(cmd):
Midas.wait(1)
except IOError, v:
raise "Can't make command from %s" % cmd, v
def doMidasCommand(self, cmd):
""" 'cmd' is the text of a Midas command
This function will execute 'cmd' using the Midas command line
"""
from Midas import midas_text
#code = None
try:
#code = Midas.midas_text.makeCommand(cmd)
if midas_text.makeCommand(cmd):
Midas.wait(1)
except IOError, v:
raise "Can't make command from %s" % cmd, v
def matchModel(self, model):
n = self.matchVars[model].get()
va, vd = self.modelVars[model]
if n < 0:
va.set(0)
vd.set(0)
self.activateModel(model, 0)
self.displayModel(model, 0)
return
altOSL = '%s%s' % (model.oslIdent(), self.subSelection)
ref = self.refModels[n]
refOSL = '%s%s' % (ref.oslIdent(), self.subSelection)
try:
Midas.match(altOSL, refOSL)
except Midas.MidasError, e:
raise chimera.UserError(str(e))
def transpSurf(amount):
if amount != -1:
aopacity = opacity = min(1.0, 1 - amount)
else:
opacity = 1
aopacity = -1
atoms = selAtoms()
import Midas
surfatoms = Midas.atomMSMSModels(atoms)
for s,atoms in surfatoms.items():
adjustMSMSTransparency(s, atoms, opacity, aopacity)
splist = selectedSurfacePieces(implied = True)
from chimera import MSMSModel
for p in splist:
s = p.model
if isinstance(s, MSMSModel) and s.molecule:
adjustMSMSTransparency(s, s.atoms, opacity, aopacity)
else:
adjustSurfacePieceTransparency(p, opacity)
if (len(atoms) > 0 and not selection.currentEmpty()
and len(surfatoms) == 0 and len(splist) == 0):
from replyobj import warning
warning('No surfaces shown for selected atoms.\n')
def colorAtomByElement(a, attrs=["color"], hetero=False): import Midas if hetero and a.element.number == chimera.elements.C.number: return c = Midas.elementColor(a.element) for attr in attrs: setattr(a, attr, c)
def colorAtomByElement(a, attrs=["color"], hetero=False):
import Midas
if hetero and a.element.number == chimera.elements.C.number:
return
c = Midas.elementColor(a.element)
for attr in attrs:
setattr(a, attr, c)
def transpSurf(amount):
if amount != -1:
aopacity = opacity = min(1.0, 1 - amount)
else:
opacity = 1
aopacity = -1
atoms = selAtoms()
import Midas
surfatoms = Midas.atomMSMSModels(atoms)
for s, atoms in surfatoms.items():
adjustMSMSTransparency(s, atoms, opacity, aopacity)
splist = selectedSurfacePieces(implied=True)
from chimera import MSMSModel
for p in splist:
s = p.model
if isinstance(s, MSMSModel) and s.molecule:
adjustMSMSTransparency(s, s.atoms, opacity, aopacity)
else:
adjustSurfacePieceTransparency(p, opacity)
if (len(atoms) > 0 and not selection.currentEmpty() and len(surfatoms) == 0
and len(splist) == 0):
from replyobj import warning
warning('No surfaces shown for selected atoms.\n')
def matchModel(self, model): n = self.matchVars[model].get() va, vd = self.modelVars[model] if n < 0: va.set(0) vd.set(0) self.activateModel(model, 0) self.displayModel(model, 0) return altOSL = '%s%s' % (model.oslIdent(), self.subSelection) ref = self.refModels[n] refOSL = '%s%s' % (ref.oslIdent(), self.subSelection) try: Midas.match(altOSL, refOSL) except Midas.MidasError, e: raise chimera.UserError(str(e))
def __init__(self, pdbid, motifs, master=None):
Tkinter.Toplevel.__init__(self, master)
self.pdbid = pdbid
self.motifs = motifs
self.models = []
self.motifs.sort()
# Open Molecule if it isn't already open
self.mol = None
if myvrml.getModelNo(pdbid.lower()) == None:
self.mol = myvrml.openMolecule(pdbid)
# highlight hetatms
Midas.represent("sphere", "#%d:.het" % self.mol.id)
Midas.represent("sphere", "#%d:ca" % self.mol.id)
self._displayGui()
def NDBColors(self):
from chimera import selection
if selection.currentEmpty():
import Midas
residues = Midas._selectedResidues('#')
else:
residues = selection.currentResidues()
NA.NDBColors(residues)
def NDBColors(residues):
import Midas
color_names = set(std['NDB color'] for std in standard_bases.values())
colors = {}
for n in color_names:
colors[n] = []
for r in residues:
try:
info = standard_bases[nucleic3to1[r.type]]
except KeyError:
continue
color = info['NDB color']
colors[color].append(r)
for color, residues in colors.items():
if residues:
Midas.color(color, residues)
Midas.ribcolor(color, residues)
def oneTransparentLayer(ol):
slist = set([p.model for p in selectedSurfacePieces(implied=True)])
for s in slist:
s.oneTransparentLayer = ol
# MSMS surfaces with just atoms selected.
import Midas
surfatoms = Midas.atomMSMSModels(selAtoms())
for s, atoms in surfatoms.items():
s.oneTransparentLayer = ol
def oneTransparentLayer(ol): slist = set([p.model for p in selectedSurfacePieces(implied = True)]) for s in slist: s.oneTransparentLayer = ol # MSMS surfaces with just atoms selected. import Midas surfatoms = Midas.atomMSMSModels(selAtoms()) for s,atoms in surfatoms.items(): s.oneTransparentLayer = ol
def atoms_surfnet(osl,
useMesh=True,
interval=1.0,
cutoff=10,
density='Gaussian',
color=None):
try:
atomList = Midas._selectedAtoms(osl)
except (Midas.MidasError, chimera.oslParser.OSLSyntaxError), e:
return str(e)
def restoreMidasBase():
formattedPositions = {
'session-start':
(0.51656690745981, 212.3515733945, (0.42143249511719, -0.0260009765625,
-104.88691711426),
(430.69914501186, -402.44959815756), -104.88691711426, {
(3, 0):
((85.74991093647263, -19.130254540518578, 15.953759428724865),
(-0.5611631172296855, 0.5113469753074245, 0.650861142414425,
111.83901581399124)),
(2, 0):
((85.74991093647263, -19.130254540518578, 15.953759428724865),
(-0.5611631172296855, 0.5113469753074245, 0.650861142414425,
111.83901581399124)),
(1, 0):
((85.74991093647263, -19.130254540518578, 15.953759428724865),
(-0.5611631172296855, 0.5113469753074245, 0.650861142414425,
111.83901581399124)),
(0, 0):
((85.74991093647263, -19.130254540518578, 15.953759428724865),
(-0.5611631172296855, 0.5113469753074245, 0.650861142414425,
111.83901581399124)),
(4, 0): ((85.74991093647263, -19.130254540518578,
15.953759428724865),
(-0.5611631172296855, 0.5113469753074245,
0.650861142414425, 111.83901581399124))
}, {
(1, 0, 'Volume'):
(False, 0.0, 0.0, 0.0, 0.0, 0.0, -1.0, False, 5.0),
(3, 0, 'Volume'):
(False, 0.0, 0.0, 0.0, 0.0, 0.0, -1.0, False, 5.0),
(0, 0, 'Volume'):
(False, 0.0, 0.0, 0.0, 0.0, 0.0, -1.0, False, 5.0),
(2, 0, 'Volume'):
(False, 0.0, 0.0, 0.0, 0.0, 0.0, -1.0, False, 5.0),
(4, 0, 'Volume'): (False, 0.0, 0.0, 0.0, 0.0, 0.0, -1.0, False,
5.0)
}, 4, (86.38818617492556, -32.636260471782066,
16.781572916543098), False, 24.739146122928)
}
import Midas
Midas.restoreMidasBase(formattedPositions)
def interface_surfnet(receptorOSL,
ligandsOSL,
useMesh=True,
interval=1.0,
cutoff=10,
density='Gaussian',
color=None):
try:
receptorAtomList = Midas._selectedAtoms(receptorOSL)
except (Midas.MidasError, chimera.oslParser.OSLSyntaxError), e:
return str(e)
def restoreMidasBase():
formattedPositions = {
'session-start':
(0.76683262201217, 6.8744100148427, (50.727180703031, 9.8739736787576,
4.2693911011513),
(16.96991371182, -9.3554221033169), 2.9510000367165, {
(0, 0): ((68.201573465377, -15.759669552015, 43.458120084532),
(-0.46643889786615833, 0.31419420626180883,
0.8268716679805371, 117.23875474475)),
(102, 0): ((68.201573465377, -15.759669552015, 43.458120084532),
(-0.46643889786615833, 0.31419420626180883,
0.8268716679805371, 117.23875474475)),
(2, 0): ((68.201573465377, -15.759669552015, 43.458120084532),
(-0.46643889786615833, 0.31419420626180883,
0.8268716679805371, 117.23875474475)),
(101, 0): ((68.201573465377, -15.759669552015, 43.458120084532),
(-0.46643889786615833, 0.31419420626180883,
0.8268716679805371, 117.23875474475)),
(1, 0): ((68.201573465377, -15.759669552015, 43.458120084532),
(-0.46643889786615833, 0.31419420626180883,
0.8268716679805371, 117.23875474475)),
(100, 0): ((68.201573465377, -15.759669552015, 43.458120084532),
(-0.46643889786615833, 0.31419420626180883,
0.8268716679805371, 117.23875474475))
}, {
(2, 0, 'Molecule'):
(False, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, False, 5.0),
(1, 0, 'Molecule'):
(False, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, False, 5.0),
(0, 0, 'Molecule'):
(False, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, False, 5.0),
(102, 0, 'Molecule'):
(False, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, False, 5.0),
(101, 0, 'Molecule'): (False, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, False,
5.0),
(100, 0, 'Molecule'): (False, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, False,
5.0)
}, 0, (54.1234, 9.16877, 4.26939), False, 17.567064639105)
}
import Midas
Midas.restoreMidasBase(formattedPositions)
def do_molBenchmark(self, style):
self.set_standard_window_size()
import Midas
Midas.window('#')
show_main_chimera_window()
draw_scene()
# Use glFinish instead of swapping buffers to avoid maxing out
# at the screen's refresh rate
times = []
for i in range(5):
with benchmarking(chimera.viewer):
t = calls_per_second(draw_scene, self.averaging_interval)
times.append(t)
if self.halt_requested():
raise HaltRequest(style)
mean = sum(times) / 5.0
return mean
def __init__(self, m, grepPath):
# Generate a temporary file name for PDB file.
# We use Chimera's 'osTemporaryFile' function
# because it automatically deletes the file when
# Chimera exits.
import OpenSave
self.pdbFile = OpenSave.osTemporaryFile(suffix=".pdb", prefix="rg")
self.outFile = OpenSave.osTemporaryFile(suffix=".out", prefix="rg")
# Write molecule in to temporary file in PDB format.
self.molecule = m
import Midas
Midas.write([m], None, self.pdbFile)
# Set up a task instance for showing user our status.
from chimera import tasks
self.task = tasks.Task("atom count for %s" % m.name, self.cancelCB)
# Start by counting the ATOM records first.
self.countAtoms()
def __init__(self, m, grepPath):
# Generate a temporary file name for PDB file.
# We use Chimera's 'osTemporaryFile' function
# because it automatically deletes the file when
# Chimera exits.
import OpenSave
self.pdbFile = OpenSave.osTemporaryFile(suffix=".pdb", prefix="rg")
self.outFile = OpenSave.osTemporaryFile(suffix=".out", prefix="rg")
# Write molecule in to temporary file in PDB format.
self.molecule = m
import Midas
Midas.write([m], None, self.pdbFile)
# Set up a task instance for showing user our status.
from chimera import tasks
self.task = tasks.Task("atom count for %s" % m.name, self.cancelCB)
# Start by counting the ATOM records first.
self.countAtoms()
def do_molBenchmark(self, style):
self.set_standard_window_size()
import Midas
Midas.window('#')
show_main_chimera_window()
draw_scene()
# Use glFinish instead of swapping buffers to avoid maxing out
# at the screen's refresh rate
times = []
for i in range(5):
with benchmarking(chimera.viewer):
t = calls_per_second(draw_scene, self.averaging_interval)
times.append(t)
if self.halt_requested():
raise HaltRequest(style)
mean = sum(times) / 5.0
return mean
def sidechain(side, glycosidic=default.GLYCOSIDIC, orient=default.ORIENT,
thickness=default.THICKNESS, hide=default.HIDE,
shape=default.SHAPE, style=default.STYLE, radius=default.RADIUS,
stubs=default.STUBS, ignore=default.IGNORE,
useexisting=default.USE_EXISTING, sel='sel'):
if isinstance(sel, basestring):
sel = Midas.evalSpec(sel)
residues = sel.residues()
molecules = [g for g in sel.graphs()
if isinstance(g, chimera.Molecule)]
elif isinstance(sel, (list, tuple, set)):
residues = sel
molecules = set([r.molecule for r in residues])
else:
residues = sel.residues()
molecules = [g for g in sel.graphs()
if isinstance(g, chimera.Molecule)]
residues = [r for r in residues
if r.ribbonResidueClass.isNucleic()]
if side == 'atoms':
for r in residues:
r.fillDisplay = False
NA.set_normal(molecules, residues)
elif side == 'fill/fill':
for r in residues:
r.fillDisplay = True
if orient:
NA.set_orient(molecules, residues)
else:
NA.set_normal(molecules, residues)
elif side in ('fill/slab', 'tube/slab'):
if side.startswith('fill'):
for r in residues:
r.fillDisplay = True
showGly = True
else:
showGly = glycosidic
if showGly:
info = NA.findStyle(style)
showGly = info[NA.ANCHOR] != NA.SUGAR
NA.set_slab(side, molecules, residues, style=style,
thickness=thickness, orient=orient,
shape=shape, showGly=showGly, hide=hide)
elif side == 'ladder':
from FindHBond import recDistSlop, recAngleSlop
NA.set_ladder(molecules, residues,
rungRadius=radius,
showStubs=stubs,
skipNonBaseHBonds=ignore,
useExisting=useexisting,
distSlop=recDistSlop, angleSlop=recAngleSlop)
def fctMidas(p1, p2):
xp, yp, zp = mc.player.getTilePos()
if p1 == True:
s = 15
if p1 == False:
s = 5
if p2 == True:
idb = 57
if p2 == False:
idb = 41
Midas.Midascube(xp, yp, zp, s, idb)
os('omxplayer -o local Desktop/minecraft/Magic_Wand/songs/Midas.mp3')
def _displayMotif(self, motif):
# obtain modelNo
modelNo = myvrml.getModelNo(motif.pdbid.lower())
if modelNo == None:
print "No Model"
return
group = myvrml.GroupNode()
# obtain chain residue numbers
chainRes = []
mol = chimera.openModels.list(id=modelNo)[0]
residues = mol.residues
residues.sort(lambda a, b: cmp(a.id.position, b.id.position))
for res in residues:
if res.id.chainId.strip() == motif.chainid:
chainRes.append(res)
# Hilight motif
motifSel = "#%d:%d-%d.%s" % (
modelNo, chainRes[motif.start].id.position,
chainRes[motif.end - 1].id.position, motif.chainid)
if gVerbose:
print "MOTIFSEL:", motifSel
print "START RES:", chainRes[motif.start].type,
print "STOP RES:", chainRes[motif.end - 1].type
Midas.color("red", motifSel)
Midas.rescolor("red", motifSel)
if gHaveCore:
# Hilight coreMotif
coreMotifSel = "#%d:%d-%d.%s" % (
modelNo, chainRes[motif.coreStart].id.position,
chainRes[motif.coreEnd - 1].id.position, motif.chainid)
print "CORESEL:", coreMotifSel
Midas.color("yellow", coreMotifSel)
print motif
return group
def Apply(self):
from chimera import dialogs
selOnly = self.selOnlyVar.get()
paths = self.getPaths()
if not paths:
replyobj.error('No save location chosen.\n')
return
path = paths[0]
models = self.modelList.getvalue()
if not models:
replyobj.error("No models chosen to save.\n")
return
if len(openModels.listIds()) > 1:
if self.saveRelativeVar.get():
relModel = self.relModelMenu.getvalue()
else:
relModel = None
else:
if self.saveUntransformedVar.get():
relModel = models[0]
else:
relModel = None
if self.haveTraj and self.frameSave.getvalue() == "all frames":
allFrames=True
else:
allFrames=False
import Midas
if len(models) < 2:
replyobj.status("Writing %s to %s\n" %
(models[0].name, path))
Midas.write(models, relModel, path,
allFrames=allFrames,
dispOnly=self.dispOnlyVar.get(),
selOnly=selOnly)
replyobj.status("Wrote %s to %s\n" %
(models[0].name, path))
return
saveOpt = self.multiSaveMenu.getvalue()
for key, value in self.labelMap.items():
if saveOpt == value:
break
self.prefs["multiSavePDB"] = key
# write multiple models to multiple files
if key == "multiple":
if path.endswith(".pdb"):
start, end = path[:-4], ".pdb"
else:
start, end = path, ""
for m in models:
modelPath = start + m.oslIdent()[1:] + end
replyobj.status("Writing %s (%s) to %s\n" %
(m.name, m.oslIdent(), modelPath))
Midas.write(m, relModel, modelPath,
allFrames=allFrames,
dispOnly=self.dispOnlyVar.get(),
selOnly=selOnly)
replyobj.status("Wrote %s (%s) to %s\n" %
(m.name, m.oslIdent(), modelPath))
return
# write multiple models to single file
replyobj.status("Writing multiple models to %s\n" % path)
Midas.write(models, relModel, path, allFrames=allFrames,
dispOnly=self.dispOnlyVar.get(),
selOnly=selOnly)
replyobj.status("Wrote multiple models to %s\n" % path)
def restoreWindowSize((width, height)): import SimpleSession if SimpleSession.preexistingModels: return # Leave window size as is. import Midas Midas.windowsize((width, height))
def restoreMidasBase():
formattedPositions = {}
import Midas
Midas.restoreMidasBase(formattedPositions)
def ndbcolor(sel='sel'): residues = Midas._selectedResidues(sel) NA.NDBColors(residues)
def match(chainPairing, matchItems, matrix, alg, gapOpen, gapExtend,
iterate=None, showAlignment=False, align=align, **alignKw):
"""Superimpose structures based on sequence alignment
'chainPairing' is the method of pairing chains to match:
CP_SPECIFIC_SPECIFIC --
Each reference chain is paired with a specified match chain
CP_SPECIFIC_BEST --
Single reference chain is paired with best seq-aligning
chain from one or more molecules
CP_BEST --
Best seq-aligning pair of chains from reference molecule and
match molecule(s) is used
"""
ksdsspCache = set()
alg = alg.lower()
if alg == "nw" or alg.startswith("needle"):
alg = "nw"
algName = "Needleman-Wunsch"
elif alg =="sw" or alg.startswith("smith"):
alg = "sw"
algName = "Smith-Waterman"
else:
raise ValueError("Unknown sequence alignment algorithm: %s"
% alg)
pairings = {}
smallMolErrMsg = "Reference and/or match model contains no nucleic or"\
" amino acid chains.\nUse the command-line 'match' command" \
" to superimpose small molecules/ligands."
if chainPairing == CP_SPECIFIC_SPECIFIC:
# specific chain(s) in each
# various sanity checks
#
# (1) can't have same chain matched to multiple refs
# (2) reference molecule can't be a match molecule
matchChains = {}
matchMols = {}
refMols = {}
for ref, match in matchItems:
if not matrixCompatible(ref, matrix):
raise UserError("Reference chain (%s) not"
" compatible with %s similarity"
" matrix" % (ref.fullName(), matrix))
if not matrixCompatible(match, matrix):
raise UserError("Match chain (%s) not"
" compatible with %s similarity"
" matrix" % (match.fullName(), matrix))
if match in matchChains:
raise UserError("Cannot match the same chain"
" to multiple reference chains")
matchChains[match] = ref
if match.molecule in refMols \
or ref.molecule in matchMols \
or match.molecule == ref.molecule:
raise UserError("Cannot have same molecule"
" model provide both reference and"
" match chains")
matchMols[match.molecule] = ref
refMols[ref.molecule] = match
if not matchChains:
raise UserError("Must select at least one reference"
" chain.\n")
for match, ref in matchChains.items():
score, s1, s2 = align(ref, match, matrix, alg,
gapOpen, gapExtend,
ksdsspCache, **alignKw)
pairings.setdefault(s2.molecule, []).append(
(score, s1, s2))
elif chainPairing == CP_SPECIFIC_BEST:
# specific chain in reference;
# best seq-aligning chain in match model(s)
ref, matches = matchItems
if not ref or not matches:
raise UserError("Must select at least one reference"
" and match item.\n")
if not matrixCompatible(ref, matrix):
raise UserError("Reference chain (%s) not compatible"
" with %s similarity matrix"
% (ref.fullName(), matrix))
for match in matches:
bestScore = None
seqs = [s for s in match.sequences()
if matrixCompatible(s, matrix)]
if not seqs and match.sequences():
raise UserError("No chains in match structure"
" %s compatible with %s similarity"
" matrix" % (match, matrix))
for seq in seqs:
score, s1, s2 = align(ref, seq, matrix, alg,
gapOpen, gapExtend,
ksdsspCache, **alignKw)
if bestScore is None or score > bestScore:
bestScore = score
pairing = (score, s1, s2)
if bestScore is None:
raise LimitationError(smallMolErrMsg)
pairings[match]= [pairing]
elif chainPairing == CP_BEST:
# best seq-aligning pair of chains between
# reference and match structure(s)
ref, matches = matchItems
if not ref or not matches:
raise UserError("Must select at least one reference"
" and match item in different models.\n")
rseqs = [s for s in ref.sequences()
if matrixCompatible(s, matrix)]
if not rseqs and ref.sequences():
raise UserError("No chains in reference structure"
" %s compatible with %s similarity"
" matrix" % (ref, matrix))
for match in matches:
bestScore = None
mseqs = [s for s in match.sequences()
if matrixCompatible(s, matrix)]
if not mseqs and match.sequences():
raise UserError("No chains in match structure"
" %s compatible with %s similarity"
" matrix" % (match, matrix))
for mseq in mseqs:
for rseq in rseqs:
score, s1, s2 = align(rseq, mseq,
matrix, alg, gapOpen, gapExtend,
ksdsspCache, **alignKw)
if bestScore is None \
or score > bestScore:
bestScore = score
pairing = (score,s1,s2)
if bestScore is None:
raise LimitationError(smallMolErrMsg)
pairings[match]= [pairing]
else:
raise ValueError("No such chain-pairing method")
from chimera.misc import principalAtom
retVals = []
for matchMol, pairs in pairings.items():
refAtoms = []
matchAtoms = []
regionInfo = {}
for score, s1, s2 in pairs:
try:
ssMatrix = alignKw['ssMatrix']
except KeyError:
ssMatrix = defaultSSMatrix
try:
ssFraction = alignKw['ssFraction']
except KeyError:
ssFraction = defaults[SS_MIXTURE]
replyobj.status("match %s (%s) with %s (%s),"
" score = %g\n" % (
s1.name, s1.molecule.oslIdent(), s2.name,
s2.molecule.oslIdent(), score), log=1)
replyobj.info("with these parameters:\n"
"\tchain pairing: %s\n\t%s using %s\n"
% (chainPairing, algName, matrix))
if ssFraction is None or ssFraction is False:
replyobj.info("\tno secondary structure"
" guidance used\n")
replyobj.info("\tgap open %g, extend %g\n" % (
gapOpen, gapExtend))
else:
if 'gapOpenHelix' in alignKw:
gh = alignKw['gapOpenHelix']
else:
gh = defaults[HELIX_OPEN]
if 'gapOpenStrand' in alignKw:
gs = alignKw['gapOpenStrand']
else:
gs = defaults[STRAND_OPEN]
if 'gapOpenOther' in alignKw:
go = alignKw['gapOpenOther']
else:
go = defaults[OTHER_OPEN]
replyobj.info("\tss fraction: %g\n"
"\tgap open (HH/SS/other) %g/%g/%g, "
"extend %g\n"
"\tss matrix: " % (ssFraction, gh, gs,
go, gapExtend))
for ss1, ss2 in ssMatrix.keys():
if ss2 < ss1:
continue
replyobj.info(" (%s, %s): %g" % (ss1,
ss2, ssMatrix[(ss1, ss2)]))
replyobj.info("\n")
if iterate is None:
replyobj.info("\tno iteration\n")
else:
replyobj.info("\titeration cutoff: %g\n"
% iterate)
if showAlignment:
from MultAlignViewer.MAViewer import MAViewer
mav = MAViewer([s1,s2], autoAssociate=None)
mav.autoAssociate = True
mav.hideHeaders(mav.headers(shownOnly=True))
mav.showHeaders([h for h in mav.headers()
if h.name == "RMSD"])
for i in range(len(s1)):
if s1[i] == "." or s2[i] == ".":
continue
refRes = s1.residues[s1.gapped2ungapped(i)]
matchRes = s2.residues[s2.gapped2ungapped(i)]
if not refRes:
continue
refAtom = principalAtom(refRes)
if not refAtom:
continue
if not matchRes:
continue
matchAtom = principalAtom(matchRes)
if not matchAtom:
continue
if refAtom.name != matchAtom.name:
# nucleic P-only trace vs. full nucleic
if refAtom.name != "P":
try:
refAtom = refAtom.residue.atomsMap["P"][0]
except KeyError:
continue
else:
try:
matchAtom = matchAtom.residue.atomsMap["P"][0]
except KeyError:
continue
refAtoms.append(refAtom)
matchAtoms.append(matchAtom)
if showAlignment and iterate is not None:
regionInfo[refAtom] = (mav, i)
import Midas
if len(matchAtoms) < 3:
replyobj.error("Fewer than 3 residues aligned; cannot"
" match %s with %s\n" % (s1.name, s2.name))
continue
try:
retVals.append(Midas.match(matchAtoms, refAtoms,
iterate=iterate, minPoints=3))
except Midas.TooFewAtomsError:
replyobj.error("Iteration produces fewer than 3"
" residues aligned.\nCannot match %s with %s"
" satisfying iteration threshold.\n"
% (s1.name, s2.name))
continue
replyobj.info("\n") # separate matches with whitespace
if regionInfo:
byMav = {}
for ra in retVals[-1][1]:
mav, index = regionInfo[ra]
byMav.setdefault(mav, []).append(index)
for mav, indices in byMav.items():
indices.sort()
from MultAlignViewer.MAViewer import \
MATCHED_REGION_INFO
name, fill, outline = MATCHED_REGION_INFO
mav.newRegion(name=name, columns=indices,
fill=fill, outline=outline)
mav.status("Residues used in final fit"
" iteration are highlighted")
return retVals
def check_space_navigator(self, trigger_name, d1, d2):
e = self.device.last_event()
if e is None:
return
rot, trans, buttons = e
from math import sqrt, pow
from chimera import Vector, Xform, viewer
# Rotation
rx, ry, rz = rot # 10 bits, signed, +/-512
rmag = sqrt(rx*rx + ry*ry + rz*rz)
# Translation
tx, ty, tz = trans # 10 bits, signed, +/-512
if self.zoom and not self.fly_mode:
zm = tz
tz = 0
else:
zm = 0
tmag = sqrt(tx*tx + ty*ty + tz*tz)
zmag = abs(zm)
if self.dominant:
if tmag < rmag or tmag < zmag:
tmag = 0
if rmag < tmag or rmag < zmag:
rmag = 0
if zmag < tmag or zmag < rmag:
zmag = 0
if self.fly_mode:
rt = 50
if abs(ry) > abs(rx)+rt and abs(ry) > abs(rz)+rt: rx = rz = 0
else: ry = 0
rmag = sqrt(rx*rx + ry*ry + rz*rz)
if rmag > 0:
axis = Vector(rx/rmag, ry/rmag, rz/rmag)
if self.fly_mode: f = 3
else: f = 30
angle = self.speed*(f*rmag/512)
xf = Xform.rotation(axis, angle)
self.apply_transform(xf)
if tmag > 0:
axis = Vector(tx/tmag, ty/tmag, tz/tmag)
shift = axis * 0.15 * self.speed * viewer.viewSize * tmag/512
xf = Xform.translation(shift)
self.apply_transform(xf)
if zmag != 0:
f = pow(1.1, self.speed*float(zm)/512)
import Midas
Midas.updateZoomDepth(viewer)
try:
viewer.scaleFactor *= f
except ValueError:
import chimera
raise chimera.LimitationError("refocus to continue scaling")
if 'N1' in buttons or 31 in buttons:
self.view_all()
if 'N2' in buttons:
self.toggle_dominant_mode()
