/usr/lib/python2.7/dist-packages/pymol/exporting.py is in pymol 1.8.4.0+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#B* This file contains source code for the PyMOL computer program
#C* Copyright (c) Schrodinger, LLC.
#D* -------------------------------------------------------------------
#E* It is unlawful to modify or remove this copyright notice.
#F* -------------------------------------------------------------------
#G* Please see the accompanying LICENSE file for further information.
#H* -------------------------------------------------------------------
#I* Additional authors of this source file include:
#-*
#-*
#-*
#Z* -------------------------------------------------------------------
from __future__ import print_function, absolute_import
if __name__=='pymol.exporting':
import os
try:
import thread
import cPickle
except ImportError:
import _thread as thread
import pickle as cPickle
from . import selector
import re
import copy
import pymol
cmd = __import__("sys").modules["pymol.cmd"]
from .cmd import _cmd,lock,unlock,Shortcut,QuietException
from chempy import io
from chempy.sdf import SDF,SDFRec
from .cmd import _feedback,fb_module,fb_mask, \
DEFAULT_ERROR, DEFAULT_SUCCESS, _raising, is_ok, is_error, \
is_list, is_dict, is_tuple, loadable
import traceback
def copy_image(quiet=1,_self=cmd): # incentive feature / proprietary
r = DEFAULT_ERROR
if thread.get_ident() == pymol.glutThread:
r = _self._copy_image(_self,int(quiet))
else:
r = _self.do('cmd._copy_image(quiet=%d,_self=cmd)'%int(quiet))
if _self._raising(r,_self): raise QuietException
return r
cache_action_dict = {
'enable' : 0,
'disable' : 1,
'read_only' : 2,
'clear' : 3,
'optimize' : 4,
}
cache_action_sc = Shortcut(cache_action_dict.keys())
def cache(action='optimize', scenes='',state=-1, quiet=1, _self=cmd):
'''
DESCRIPTION
"cache" manages storage of precomputed results, such as
molecular surfaces.
USAGE
cache action [, scenes [, state ]]
ARGUMENTS
action = string: enable, disable, read_only, clear, or optimize
scenes = string: a space-separated list of scene names (default: '')
state = integer: state index (default: -1)
EXAMPLES
cache enable
cache optimize
cache optimize, F1 F2 F5
NOTES
"cache optimize" will iterate through the list of scenes provided
(or all defined scenes), compute any missing surfaces, and store
them in the cache for later reuse.
PYMOL API
cmd.cache(string action, string scenes, int state, int quiet)
'''
r = DEFAULT_ERROR
action = cache_action_dict[cache_action_sc.auto_err(str(action),'action')]
quiet = int(quiet)
if action == 0: # enable
r = _self.set('cache_mode',2,quiet=quiet)
elif action == 1: # disable
r =_self.set('cache_mode',0,quiet=quiet)
elif action == 2: # read_only
r =_self.set('cache_mode',1,quiet=quiet)
elif action == 3: # clear
r =_self._cache_clear(_self=_self)
elif action == 4: # optimize
r = DEFAULT_SUCCESS
_self._cache_mark(_self=_self)
cur_scene = _self.get('scene_current_name')
cache_max = int(_self.get('cache_max'))
if cache_max>0:
# allow double memory for an optimized cache
_self.set('cache_max',cache_max*2)
scenes = str(scenes)
scene_list = scenes.split()
cache_mode = int(_self.get('cache_mode'))
_self.set('cache_mode',2)
if not len(scene_list):
scene_list = _self.get_scene_list()
for scene in scene_list:
scene = scene.strip()
if not quiet:
print(" cache: optimizing scene '%s'."%scene)
cmd.scene(scene,animate=0)
cmd.rebuild()
cmd.refresh()
if len(cur_scene):
cmd.scene(cur_scene,animate=0)
else:
scene_list = _self.get_scene_list()
if len(scene_list):
cmd.scene(scene_list[0],animate=0)
else:
if not quiet:
print(" cache: no scenes defined -- optimizing current display.")
cmd.rebuild()
cmd.refresh()
usage = _self._cache_purge(-1,_self=_self)
if cache_mode:
_self.set('cache_mode',cache_mode)
else:
_self.set('cache_mode',2) # hmm... could use 1 here instead.
_self.set('cache_max',cache_max) # restore previous limits
if not quiet:
print(" cache: optimization complete (~%0.1f MB)."%(usage*4/1000000.0))
try:
_self.lock(_self)
finally:
_self.unlock(r,_self)
if _self._raising(r,_self): raise QuietException
return r
_resn_to_aa = {
'ALA' : 'A',
'CYS' : 'C',
'ASP' : 'D',
'GLU' : 'E',
'PHE' : 'F',
'GLY' : 'G',
'HIS' : 'H',
'ILE' : 'I',
'LYS' : 'K',
'LEU' : 'L',
'MET' : 'M',
'ASN' : 'N',
'PRO' : 'P',
'GLN' : 'Q',
'ARG' : 'R',
'SER' : 'S',
'THR' : 'T',
'VAL' : 'V',
'TRP' : 'W',
'TYR' : 'Y',
}
def get_fastastr(selection="all", state=-1, quiet=1, _self=cmd):
dict = { 'seq' : {} }
# we use (alt '' or alt 'A') because 'guide' picks up
# non-canonical structures: eg, 1ejg has residue 22 as a SER and
# PRO, which guide will report twice
_self.iterate("("+selection+") and polymer and name CA and alt +A",
"seq[model]=seq.get(model,[]);seq[model].append(resn)",space=dict)
seq = dict['seq']
result = []
for obj in _self.get_names("objects",selection='('+selection+')'):
if obj in seq:
cur_seq = [_resn_to_aa.get(x,'?') for x in seq[obj]]
result.append(">%s"%obj)
cur_seq = ''.join(cur_seq)
while len(cur_seq):
if len(cur_seq)>=70:
result.append(cur_seq[0:70])
cur_seq=cur_seq[70:]
else:
result.append(cur_seq)
break
result = '\n'.join(result)
if len(result):
result = result + '\n'
return result
def get_pdbstr(selection="all", state=-1, ref='', ref_state=-1, quiet=1, _self=cmd):
'''
DESCRIPTION
"get_pdbstr" in an API-only function which returns a pdb
corresponding to the atoms in the selection provided and that are
present in the indicated state
PYMOL API
cmd.get_pdbstr(string selection, int state)
NOTES
"state" is a 1-based state index for the object.
if state is -1, then current state is used.
if state is 0, then all states are saved.
'''
return get_str('pdb', selection, state, ref, ref_state, -1, quiet, _self)
def _get_dump_str(obj):
if is_list(obj):
list = map(_get_dump_str,obj)
result = "[ " + ",\n".join(list) + " ] "
elif is_dict(obj):
list = []
for key in obj.keys():
list.append( _get_dump_str(key)+" : "+_get_dump_str(obj[key]) )
result = "{ " + ",\n".join(list) + " } "
elif is_tuple(obj):
list = map(_get_dump_str,obj)
result = "( " + ",\n".join(list) + " ) "
else:
result = str(obj)
return result
def _session_convert_legacy(session, version, _self=cmd):
'''
Convert session contents to be compatible with previous PyMOL versions
'''
if version >= _self.get_version()[1]:
return
print(" Applying pse_export_version=%.3f compatibility" % (version))
def bitmaskToList(mask):
if not isinstance(mask, int):
return mask
r = []
while (mask >> len(r)):
r.append(1 if ((mask >> len(r)) & 1) else 0)
return r
def convert_settings(settings_list):
if not settings_list:
return
# get index -> setting dict
settings = dict((s[0], s) for s in settings_list if s is not None)
# changed type
cast_fn = {
3: float,
4: lambda v: list(_self.get_color_tuple(v)),
}
for (i, old, new) in [
(6, 4, 5), # bg_rgb
(254, 3, 1), # scenes_changed
]:
if i in settings and settings[i][1] == new:
settings[i][1] = old
settings[i][2] = cast_fn[old](settings[i][2])
# changed defaults
changed = []
if version < 1.76:
changed += [
(91, 7, -1), # cartoon_sampling
(93, 6., -1.), # cartoon_loop_quality
(102, 10., -1.), # cartoon_oval_quality
(104, 9., -1.), # cartoon_tube_quality
(378, 11., -1.), # cartoon_putty_quality
]
if version < 1.5:
changed += [
(421, -1, 9), # sphere_mode
]
for (i, old, new) in changed:
if i in settings and settings[i][2] == new:
settings[i][2] = old
if 'settings' in session:
convert_settings(session['settings'])
# objects
for name in session['names']:
if name is None:
continue
# spec repOn
if version < 1.76 and name[3] is None:
name[3] = [0] * 20
# only continue for objects
if name[1] != 0:
continue
if name[4] == 8: # gadget
cobject = name[5][0][0]
else:
cobject = name[5][0]
# object visRep
if version < 1.76:
cobject[3] = bitmaskToList(cobject[3])
# object settings
convert_settings(cobject[8])
# molecule
if name[4] == 1:
# atoms visRep
if version < 1.76:
for atom in name[5][7]:
atom[20] = bitmaskToList(atom[20])
# state settings
for cset in name[5][4]:
if cset:
convert_settings(cset[7])
# map
elif name[4] == 2:
if version < 1.5:
# crystal -> [crystal, spacegroup]
for state in name[5][2]:
if state and state[1]:
state[1] = state[1][0]
# cgo
elif name[4] == 6:
if version < 1.506:
for state in name[5][2]:
if len(state) == 1:
# std and ray CGO
state.append(state[0])
def get_session(names='', partial=0, quiet=1, compress=-1, cache=-1, _self=cmd):
session = {}
r = DEFAULT_SUCCESS
cache = int(cache)
compress = int(compress)
partial = int(partial)
pse_export_version = round(_self.get_setting_float('pse_export_version'), 4)
legacyscenes = (0 < pse_export_version < 1.76) and _self.get_scene_list()
if legacyscenes:
_self.pymol._scene_dict = {}
scene_current_name = _self.get('scene_current_name')
tempname = '_scene_db96724c3cef00875c3bebb4f348f711'
_self.scene(tempname, 'store')
for name in legacyscenes:
_self.scene(name, 'recall', animate=0)
wizard = _self.get_wizard()
message = wizard.message if getattr(wizard, 'from_scene', 0) else None
pymol.viewing._legacy_scene(name, 'store', message, _self=_self)
_self.scene(tempname, 'recall', animate=0)
_self.scene(tempname, 'clear')
_self.set('scene_current_name', scene_current_name)
if cache:
cache_opt = int(_self.get('session_cache_optimize'))
if cache != 0:
cache_mode = int(_self.get('cache_mode'))
if ((cache_mode > 0) and (cache_opt != 0)) or (cache_opt==1):
_self.cache('optimize')
for a in _self._pymol._session_save_tasks:
if a==None:
try:
_self.lock(_self)
r = _cmd.get_session(_self._COb,session,str(names),
int(partial),int(quiet))
finally:
_self.unlock(r,_self)
try:
session['session'] = copy.deepcopy(_self._pymol.session)
if cache and hasattr(_self._pymol,'_cache'):
session['cache'] = _self._pymol._cache
except:
traceback.print_exc()
else:
try:
if is_error(a(*(session,), **{'_self':_self})):
r = DEFAULT_ERROR
except:
traceback.print_exc()
print("Error: An error occurred when trying to generate session.")
print("Error: The resulting session file may be incomplete.")
if legacyscenes:
del session['moviescenes']
session['scene_dict'] = _self.pymol._scene_dict
session['scene_order'] = legacyscenes
pymol.viewing._legacy_scene('*', 'clear', _self=_self)
del _self.pymol._scene_dict
if is_ok(r):
if pse_export_version > 0.0:
try:
_session_convert_legacy(session, pse_export_version, _self)
except Exception as e:
print(' Warning: failed to backport session:', e)
if(compress<0):
compress = _self.get_setting_boolean('session_compression')
if(compress):
import zlib
session = zlib.compress(cPickle.dumps(session, 1))
return session
elif _self._raising(r,_self):
raise QuietException
return r
def _unit2px(value, dpi):
'''API only. Returns pixel units given a string representation in other units'''
if isinstance(value, str):
m = re.search(r'[a-z].*', value, re.I)
if m:
if dpi <= 0:
raise pymol.CmdException('need dpi if units are given')
value, unit = value[:m.start()], m.group(0).lower()
upi = {'in': 1.0, 'mm': 25.4, 'cm': 2.54}
if unit not in upi:
raise pymol.CmdException('unknown unit, supported units are: ' +
', '.join(upi))
value = float(value) * dpi / upi[unit] + 0.5
return int(value)
def png(filename, width=0, height=0, dpi=-1.0, ray=0,
quiet=1, prior=0, format=0, _self=cmd):
'''
DESCRIPTION
"png" saves a PNG format image file of the current display.
USAGE
png filename [, width [, height [, dpi [, ray]]]]
ARGUMENTS
filename = string: file path to be written
width = integer or string: width in pixels (without units), inches (in)
or centimeters (cm). If unit suffix is given, dpi argument is required
as well. If only one of width or height is given, the aspect ratio of
the viewport is preserved. {default: 0 (current)}
height = integer or string: height (see width) {default: 0 (current)}
dpi = float: dots-per-inch {default -1.0 (unspecified)}
ray = 0 or 1: should ray be run first {default: 0 (no)}
EXAMPLES
png image.png
png image.png, dpi=300
png image.png, 10cm, dpi=300, ray=1
NOTES
PNG is the only image format supported by PyMOL.
SEE ALSO
mpng, save
PYMOL API
cmd.png(string filename, int width, int height, float dpi,
int ray, int quiet)
'''
r = DEFAULT_ERROR
prior = int(prior)
if prior:
# fetch the prior image, without doing any work (fast-path / non-GLUT thread-safe)
r = _self._png(str(filename),0,0,float(dpi),0,int(quiet),1,
int(format),_self)
if r != 1: # no prior image available -- revert to default behavior
if prior < 0: # default is to fall back to actual rendering
prior = 0
if not prior:
dpi = float(dpi)
if dpi < 0:
dpi = cmd.get_setting_float('image_dots_per_inch')
width = _unit2px(width, dpi)
height = _unit2px(height, dpi)
if thread.get_ident() == pymol.glutThread:
r = _self._png(str(filename),int(width),int(height),float(dpi),
int(ray),int(quiet),0,int(format),_self)
else:
r = _self._do("cmd._png('''%s''',%d,%d,%1.6f,%d,%d,%d,%d)"%
(filename,width,height,dpi,
ray,int(quiet),0,int(format)),_self=_self)
if _self._raising(r,_self): raise QuietException
return r
def export_coords(obj,state,_self=cmd): # experimental
r = DEFAULT_ERROR
try:
_self.lock(_self)
r = _cmd.export_coords(_self._COb,str(obj),int(state)-1)
finally:
_self.unlock(r,_self)
if _self._raising(r,_self): raise QuietException
return r
def multisave(filename, pattern="all", state=-1,
append=0, format='', quiet=1, _self=cmd):
'''
DESCRIPTION
"multisave" is an unsupported command.
'''
if not format:
if filename.lower().endswith('.pmo'):
raise pymol.CmdException('pmo format not supported anymore')
format = 'pdb'
s = get_str(format, pattern, state, '', -1, 1, quiet, _self)
if s is None:
if _self._raising(): raise QuietException
return DEFAULT_ERROR
filename = _self.exp_path(filename)
with open(filename, 'a' if int(append) else 'w') as handle:
handle.write(s)
return DEFAULT_SUCCESS
def assign_atom_types( selection, format = "mol2", state=1, quiet=1, _self=cmd):
r = DEFAULT_ERROR
try:
_self.lock(_self)
# format : mol2/sybyl = 1, macromodel/mmd = 2, global setting atom_type_format = 0
r = _cmd.assign_atom_types(_self._COb, selection, int(1), int(state-1), quiet)
finally:
_self.unlock(r,_self)
return r
def get_str(format, selection='(all)', state=-1, ref='',
ref_state=-1, multi=-1, quiet=1, _self=cmd):
'''
DESCRIPTION
API-only function which exports the selection to a molecular file
format and returns it as a string.
'''
with _self.lockcm:
return _cmd.get_str(_self._COb, str(format), str(selection),
int(state) - 1, str(ref), int(ref_state),
int(multi), int(quiet))
def save(filename, selection='(all)', state=-1, format='', ref='',
ref_state=-1, quiet=1, partial=0,_self=cmd):
'''
DESCRIPTION
"save" writes content to a file.
USAGE
save filename [, selection [, state [, format ]]]
ARGUMENTS
filename = string: file path to be written
selection = string: atoms to save {default: (all)}
state = integer: state to save {default: -1 (current state)}
PYMOL API
cmd.save(string file, string selection, int state, string format)
NOTES
The file format is automatically chosen if the extesion is one of
the supported output formats: pdb, pqr, mol, sdf, pkl, pkla, mmd, out,
dat, mmod, cif, pov, png, pse, psw, aln, fasta, obj, mtl, wrl, dae, idtf,
or mol2.
If the file format is not recognized, then a PDB file is written
by default.
For molecular files and where applicable and supported:
* if state = -1 (default), then only the current state is written.
* if state = 0, then a multi-state output file is written.
SEE ALSO
load, get_model
'''
import gzip
quiet = int(quiet)
do_gzip = False
# preprocess selection
selection = selector.process(selection)
#
r = DEFAULT_ERROR
if format=='':
ext_list = filename.lower().rsplit('.', 2)
if ext_list[-1] == 'gz':
do_gzip = True
ext = ext_list[-2]
else:
ext = ext_list[-1]
if ext in ['cif', 'pqr', 'mol', 'sdf', 'pkl', 'xyz', 'pov',
'png', 'aln', 'fasta', 'obj', 'mtl', 'wrl', 'dae', 'idtf',
'mae',
'ccp4',
'mol2']:
format = ext
elif ext in ["pdb", "ent"]:
format = 'pdb'
elif ext in ["mmod", "mmd", "out", "dat"]:
format = 'mmod'
elif ext in ["pse", "psw"]:
format = 'pse'
elif ext in ["pze", "pzw"]:
do_gzip = True
format = 'pse'
else:
if not quiet:
print(" Save-Warning: Unrecognized file type -- defaulting to PDB format.")
format='pdb'
filename = _self.exp_path(filename)
func_type1 = {
'cif': get_cifstr, # mmCIF
'xyz': get_xyzstr,
'fasta': get_fastastr,
'aln': get_alnstr,
'ccp4': get_ccp4str,
}
func_type2 = {
'pdb': get_pdbstr,
'pqr': get_pqrstr,
'sdf': get_sdfstr,
'mol2': get_mol2str,
'mae': get_maestr,
'mol': lambda *a, **kw: get_str('mol', *a, **kw),
}
def safe_getitem(tup, idx):
return tup[idx] if tup else None
func_type3 = {
'dae': _self.get_collada,
'wrl': _self.get_vrml,
'mtl': lambda: safe_getitem(_self.get_mtl_obj(), 0),
'obj': lambda: safe_getitem(_self.get_mtl_obj(), 1),
'pov': _self.get_povray,
'idtf': _self.get_idtf,
}
func_type4 = {
'mmod': io.mmd.toFile,
'pkl': io.pkl.toFile, # binary pickle
'pkla': lambda model, filename: io.pkl.toFile(model, filename, bin=0), # ascii pickle
}
contents = None
if format in func_type1:
contents = func_type1[format](selection, state, quiet=quiet, _self=_self)
elif format in func_type2:
contents = func_type2[format](selection, state, ref, ref_state, quiet=quiet, _self=_self)
elif format in func_type3:
contents = func_type3[format]()
if isinstance(contents, tuple):
contents = ''.join(contents)
elif format in func_type4:
func_type4[format](_self.get_model(selection, state, ref, ref_state), filename)
r = DEFAULT_SUCCESS
elif format=='pse': # PyMOL session
filename = filename.replace("\\","/") # always use unix-like path separators
_self.set("session_file",filename,quiet=1)
if '(' in selection: # ignore selections
selection = ''
if not quiet:
print(" Save: Please wait -- writing session file...")
contents = cPickle.dumps(_self.get_session(selection, partial, quiet), 1)
elif format=='png':
return _self.png(filename, quiet=quiet)
if cmd.is_string(contents):
if not isinstance(contents, bytes):
contents = contents.encode()
with (gzip.open if do_gzip else open)(filename, 'wb') as handle:
handle.write(contents)
r = DEFAULT_SUCCESS
if _self._raising(r,_self): raise QuietException
if not quiet:
if r == DEFAULT_SUCCESS:
print(' Save: wrote "' + filename + '".')
else:
print(' Save-Error: no file written')
return r
def get_cifstr(selection="all", state=-1, quiet=1, _self=cmd):
'''
DESCRIPTION
API-only function which returns a mmCIF string.
SEE ALSO
get_pdbstr
'''
return get_str('cif', selection, state, '', -1, -1, quiet, _self)
def get_xyzstr(selection, state=-1, quiet=1, _self=cmd):
return get_str('xyz', selection, state, '', -1, -1, quiet, _self)
def get_sdfstr(selection, state=-1, ref='', ref_state=-1, quiet=1, _self=cmd):
return get_str('sdf', selection, state, ref, ref_state, -1, quiet, _self)
def get_mol2str(selection, state=-1, ref='', ref_state=-1, quiet=1, _self=cmd):
return get_str('mol2', selection, state, ref, ref_state, -1, quiet, _self)
def get_alnstr(selection, state=-1, quiet=1, _self=cmd):
with _self.lockcm:
return _cmd.get_seq_align_str(_self._COb, str(selection),
int(state)-1, 0, int(quiet))
def get_pqrstr(selection, state=-1, ref='', ref_state=-1, quiet=1, _self=cmd):
return get_str('pqr', selection, state, ref, ref_state, -1, quiet, _self)
def get_maestr(selection, state=-1, ref='', ref_state=-1, quiet=1, _self=cmd):
return get_str('mae', selection, state, ref, ref_state, -1, quiet, _self)
def get_ccp4str(name, state=1, quiet=1, _self=cmd):
with _self.lockcm:
return _cmd.get_ccp4str(_self._COb, str(name),
int(state) - 1, int(quiet))
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