def compareVersions():
from htmd.version import version
from natsort import natsorted
import os
import time
#t = time.time()
from os.path import expanduser
__home = expanduser("~")
__htmdconf = os.path.join(__home, '.htmd')
if not os.path.exists(__htmdconf):
try:
os.makedirs(__htmdconf)
except:
print('Unable to create {} folder. Will not check for new HTMD versions.'.format(__htmdconf))
return
__file = os.path.join(__htmdconf, '.latestversion')
# Check if one day has passed since last version check. If yes, get new version and write to file
if not os.path.isfile(__file) or time.time() > os.path.getmtime(__file) + 86400:
_writeLatestVersionFile(__file)
try:
f = open(__file, 'r')
except:
print('Unable to open {} file for reading. Will not check for new HTMD versions.'.format(__file))
return
latestversions = f.readlines()
f.close()
currver = version()
if currver != 'unpackaged' and len(latestversions) == 2: # Supporting users which still haven't passed the one day limit. Can remove in next
if _is_stable(currver):
latest = latestversions[0].strip()
verstring = 'stable'
else:
latest = latestversions[1].strip()
verstring = 'devel'
elif len(latestversions) == 1: # Supporting users which still haven't passed the one day limit. Can remove in next version
latest = latestversions[0].strip()
verstring = ''
elif currver == 'unpackaged':
pass
else:
return
if currver != 'unpackaged' and natsorted((latest, currver))[1] != currver:
print('New {} HTMD version ({}) is available. You are currently on ({}). Use \'conda update -c acellera htmd\' to '
'update to the new version.'.format(verstring, latest, currver))
else:
if currver != 'unpackaged':
print('You are on the latest HTMD version ({}).'.format(currver))
else:
from htmd import home
print('You are on the latest HTMD version ({} : {}).'.format(currver, home()))
print("")
def xtc_lib():
lib = {}
libdir = htmd.home(libDir=True)
import platform
if platform.system() == "Windows":
lib['libc'] = ct.cdll.msvcrt
ct.cdll.LoadLibrary(os.path.join(libdir, "libgcc_s_seh-1.dll"))
if os.path.exists(os.path.join(libdir, "psprolib.dll")):
ct.cdll.LoadLibrary(os.path.join(libdir, "psprolib.dll"))
else:
# lib['libc'] = cdll.LoadLibrary("libc.so.6")
lib['libc'] = ct.cdll.LoadLibrary("libc.{}".format("so.6" if platform.uname()[0] != "Darwin" else "dylib"))
lib['libxtc'] = ct.cdll.LoadLibrary(os.path.join(libdir, "libxtc.so"))
return lib
def xtc_lib():
lib = {}
libdir = htmd.home(libDir=True)
import platform
if platform.system() == "Windows":
lib['libc'] = ct.cdll.msvcrt
ct.cdll.LoadLibrary(os.path.join(libdir, "libgcc_s_seh-1.dll"))
if os.path.exists(os.path.join(libdir, "psprolib.dll")):
ct.cdll.LoadLibrary(os.path.join(libdir, "psprolib.dll"))
else:
# lib['libc'] = cdll.LoadLibrary("libc.so.6")
lib['libc'] = ct.cdll.LoadLibrary("libc.{}".format(
"so.6" if platform.uname()[0] != "Darwin" else "dylib"))
lib['libxtc'] = ct.cdll.LoadLibrary(os.path.join(libdir, "libxtc.so"))
return lib
outfile = os.path.join(outputdir, self.acemd.coordinates)
inmol.write(outfile)
def addConstraint(self, atomselect, factor=1):
""" Convenience function for adding a new constraint to existing constraints.
Parameters
----------
atomselect : str
Atom selection of atoms we want to constrain
factor : float
The scaling factor of the constraints applied to the atoms
Example
-------
>>> eq.addConstraint('chain X', 0.3)
"""
self.constraints[atomselect] = factor
if __name__ == "__main__":
import htmd
eq = Equilibration()
eq.numsteps = 1000000
eq.temperature = 300
eq.reference = 'protein and name CA'
eq.selection = 'segname L and noh'
eq.box = [-20, 20, -20, 20, 43, 45]
eq.k = 5
eq.write(htmd.home() + '/data/equilibrate', '/tmp/equil1')
if self.fb_k > 0: #use TCL only for flatbottom
mol = Molecule(os.path.join(inputdir, self.acemd.coordinates))
self.acemd.tclforces = 'on'
tcl = list(self.acemd.TCL)
tcl[0] = tcl[0].format(
NUMSTEPS=numsteps,
KCONST=self.fb_k,
REFINDEX=' '.join(map(str, mol.get('index',
self.fb_reference))),
SELINDEX=' '.join(map(str, mol.get('index',
self.fb_selection))),
BOX=' '.join(map(str, self.fb_box)))
self.acemd.TCL = tcl[0] + tcl[1]
else:
self.acemd.TCL = 'set numsteps {}\n'.format(numsteps)
self.acemd.setup(inputdir, outputdir, overwrite=True)
if __name__ == "__main__":
md = Production()
md.temperature = 300
md.fb_reference = 'protein and name CA'
md.fb_selection = 'segname L and noh'
md.acemd.extendedsystem = None # use different data
md.acemd.binindex = None # use different data
md.fb_box = [-20, 20, -20, 20, 43, 45]
md.fb_k = 5
md.write(htmd.home() + '/data/equilibrate', '/tmp/prod')
md.fb_k = 0
md.write(htmd.home() + '/data/equilibrate', '/tmp/prod0')
centers
"""
centers = centers.astype(np.float64)
channelsigmas = channelsigmas.astype(np.float64)
nchannels = channelsigmas.shape[1]
occus = np.zeros((centers.shape[0], nchannels))
coords = np.squeeze(mol.coords[:, :, 0])
occupancylib.descriptor_ext(centers.ctypes.data_as(ctypes.POINTER(ctypes.c_double)),
coords.ctypes.data_as(ctypes.POINTER(ctypes.c_float)),
channelsigmas.ctypes.data_as(ctypes.POINTER(ctypes.c_double)),
occus.ctypes.data_as(ctypes.POINTER(ctypes.c_double)),
ctypes.c_int(occus.shape[0]), # n of centers
ctypes.c_int(coords.shape[0]), # n of atoms
ctypes.c_int(nchannels)) # n of channels
return occus
if __name__ == '__main__':
from htmd.molecule.molecule import Molecule
from htmd.home import home
import os
import numpy as np
testf = os.path.join(home(), 'data', 'test-voxeldescriptors')
resOcc, resCent, N = getVoxelDescriptors(Molecule(os.path.join(testf, '3ptb.pdbqt')), buffer=8, voxelsize=1)
resOcc = resOcc.reshape(N[0], N[1], N[2], resOcc.shape[1])
refOcc = np.load(os.path.join(testf, '3PTB_occ.npy'))
refCent = np.load(os.path.join(testf, '3PTB_center.npy'))
assert np.allclose(resOcc, refOcc)
assert np.allclose(resCent, refCent)
def _spawn(self, ranking, N, truncated=False):
if truncated:
idx = np.argsort(ranking)
idx = idx[::-1] # decreasing sort
errs = ranking[idx]
H = (N * errs / np.cumsum(errs)) < 1
ranking[idx[H]] = 0
prob = ranking / np.sum(ranking)
spawnmicro = np.random.multinomial(N, prob)
return spawnmicro, prob
if __name__ == "__main__":
from htmd import AcemdLocal
import htmd
from os import chdir
from tempfile import mkdtemp
chdir(mkdtemp())
md = AdaptiveRun()
md.dryrun = True
md.nmin = 2
md.nmax = 3
md.nepochs = 2
md.ticadim = 0
md.metricsel1 = 'name CA'
md.generatorspath = htmd.home() + '/data/dhfr'
#md.app = AcemdLocal()
# md.run() # Disabled because I can't assume acemd is installed in travis machines
def _writeBashRun(self, fname):
with open(fname, 'w') as f:
f.write('#!/bin/bash\nacemd >log.txt 2>&1')
os.chmod(fname, 0o700)
def __repr__(self):
return self.show(quiet=True)
def writeConf(self, fname='input'):
""" Write an acemd configuration file
Parameters
----------
fname : output file name
"""
text = self.show(quiet=True)
fo = open(fname, 'w')
fo.write(text)
fo.close()
if __name__ == "__main__":
#l=Acemd.protocols(quiet=True)
acemd = Acemd()
acemd.structure = '5dhfr_cube.psf'
acemd.parameters = 'par_all22_prot.inp'
homedir = htmd.home()
acemd.coordinates = '5dhfr_cube.pdb'
acemd.setup(homedir + '/data/dhfr', '/tmp/testdir', overwrite=True)
print(acemd)
import sys
import numpy as np
import htmd
from htmd.projections.metricplumed2 import MetricPlumed2
try:
_getPlumedRoot()
except:
print("Tests in %s skipped because plumed executable not found." % __file__)
sys.exit()
import doctest
doctest.testmod()
# One simulation
mol = Molecule(os.path.join(htmd.home(), 'data', '1kdx', '1kdx_0.pdb'))
mol.read(os.path.join(htmd.home(), 'data', '1kdx', '1kdx.dcd'))
metric = MetricPlumed2(['d1: DISTANCE ATOMS=1,200',
'd2: DISTANCE ATOMS=5,6'])
# metric = MetricPlumed2(['']) # to test exceptions
data = metric.project(mol)
ref = np.array([0.536674, 21.722393, 22.689391, 18.402114, 23.431387, 23.13392, 19.16376, 20.393544,
23.665517, 22.298349, 22.659769, 22.667669, 22.484084, 20.893447, 18.791701,
21.833056, 19.901318])
assert np.all(np.abs(ref - data[:, 0]) < 0.01), 'Plumed demo calculation is broken'
# Simlist
# datadirs=glob(os.path.join(home(), 'data', 'adaptive', 'data', '*' )
# fsims=simlist(glob(os.path.join(home(), 'data', 'adaptive', 'data', '*', '/')),
# os.path.join(home(), 'data', 'adaptive', 'generators', '1','structure.pdb'))
def compareVersions():
from htmd.version import version
from natsort import natsorted
import os
import time
#t = time.time()
from os.path import expanduser
__home = expanduser("~")
__htmdconf = os.path.join(__home, '.htmd')
if not os.path.exists(__htmdconf):
try:
os.makedirs(__htmdconf)
except:
print(
'Unable to create {} folder. Will not check for new HTMD versions.'
.format(__htmdconf))
return
__file = os.path.join(__htmdconf, '.latestversion')
# Check if one day has passed since last version check. If yes, get new version and write to file
if not os.path.isfile(
__file) or time.time() > os.path.getmtime(__file) + 86400:
_writeLatestVersionFile(__file)
try:
f = open(__file, 'r')
except:
print(
'Unable to open {} file for reading. Will not check for new HTMD versions.'
.format(__file))
return
latestversions = f.readlines()
f.close()
currver = version()
if currver != 'unpackaged' and len(
latestversions
) == 2: # Supporting users which still haven't passed the one day limit. Can remove in next
if _is_stable(currver):
latest = latestversions[0].strip()
verstring = 'stable'
else:
latest = latestversions[1].strip()
verstring = 'devel'
elif len(
latestversions
) == 1: # Supporting users which still haven't passed the one day limit. Can remove in next version
latest = latestversions[0].strip()
verstring = ''
elif currver == 'unpackaged':
pass
else:
return
if currver != 'unpackaged' and natsorted((latest, currver))[1] != currver:
print(
'New {} HTMD version ({}) is available. You are currently on ({}). Use \'conda update htmd\' to '
'update to the new version.'.format(verstring, latest, currver))
else:
if currver != 'unpackaged':
print('You are on the latest HTMD version ({}).'.format(currver))
else:
from htmd import home
print('You are on the latest HTMD version ({} : {}).'.format(
currver, home()))
lib = xtc_lib()
bbox = (c_float * 3)()
natoms = c_int(coords.shape[0])
cstep = c_int()
# print(coords.shape)
for f in range(coords.shape[2]):
cstep = c_int(step[f])
ctime = c_float(time[f]) # TODO FIXME
# print ( step )
# print ( time )
bbox[0] = box[0, f] * 0.1
bbox[1] = box[1, f] * 0.1
bbox[2] = box[2, f] * 0.1
data = coords[:, :, f].astype(
numpy.float32) * 0.1 # Convert from A to nm
pos = data.ctypes.data_as(POINTER(c_float))
lib['libxtc'].xtc_write(c_char_p(filename.encode("ascii")), natoms,
cstep, ctime, pos, bbox)
pass
if __name__ == "__main__":
from htmd.molecule.molecule import Molecule
from htmd.home import home
from os import path
m = Molecule(path.join(home(), 'data', 'dhfr', 'dhfr.pdb'))
m.read(path.join(home(), 'data', 'dhfr', 'dhfr.xtc'))
m.write('/tmp/test.xtc')
import numpy as np
import htmd
from htmd.projections.metricplumed2 import *
try:
_getPlumedRoot()
except:
print("Tests in %s skipped because plumed executable not found." %
__file__)
sys.exit()
import doctest
doctest.testmod()
# Simlist
dd = htmd.home(dataDir="adaptive")
fsims = htmd.simlist([dd + '/data/e1s1_1/', dd + '/data/e1s2_1/'],
dd + '/generators/1/structure.pdb')
metr = Metric(fsims)
metr.projection(
MetricPlumed2(['d1: DISTANCE ATOMS=2,3', 'd2: DISTANCE ATOMS=5,6']))
data2 = metr.project()
# One simulation
testpath = os.path.join(htmd.home(), 'data', '1kdx')
mol = Molecule(os.path.join(testpath, '1kdx_0.pdb'))
mol.read(os.path.join(htmd.home(), 'data', '1kdx', '1kdx.dcd'))
metric = MetricPlumed2(
['d1: DISTANCE ATOMS=1,200', 'd2: DISTANCE ATOMS=5,6'])
data = metric.project(mol)
# (c) 2015-2016 Acellera Ltd http://www.acellera.com
# All Rights Reserved
# Distributed under HTMD Software License Agreement
# No redistribution in whole or part
#
import htmd
import os
import inspect
def home():
return os.path.dirname(inspect.getfile(htmd))
#Don't know how to do this
# def modulehome(modname):
# return os.path.dirname(os.path.dirname(inspect.getfile(modname)))
if __name__ == "__main__":
h = htmd.home()
print(h)
import numpy as np
import htmd
from htmd.projections.metricplumed2 import MetricPlumed2
try:
_getPlumedRoot()
except:
print("Tests in %s skipped because plumed executable not found." %
__file__)
sys.exit()
import doctest
doctest.testmod()
# One simulation
mol = Molecule(os.path.join(htmd.home(), 'data', '1kdx', '1kdx_0.pdb'))
mol.read(os.path.join(htmd.home(), 'data', '1kdx', '1kdx.dcd'))
metric = MetricPlumed2(
['d1: DISTANCE ATOMS=1,200', 'd2: DISTANCE ATOMS=5,6'])
# metric = MetricPlumed2(['']) # to test exceptions
data = metric.project(mol)
ref = np.array([
0.536674, 21.722393, 22.689391, 18.402114, 23.431387, 23.13392,
19.16376, 20.393544, 23.665517, 22.298349, 22.659769, 22.667669,
22.484084, 20.893447, 18.791701, 21.833056, 19.901318
])
assert np.all(
np.abs(ref - data[:, 0]) < 0.01), 'Plumed demo calculation is broken'
# Simlist
H = (N * errs / np.cumsum(errs)) < 1
ranking[idx[H]] = 0
prob = ranking / np.sum(ranking)
spawnmicro = np.random.multinomial(N, prob)
return spawnmicro, prob
if __name__ == "__main__":
from htmd import AcemdLocal
import htmd
import os
import shutil
from htmd.util import tempname
tmpdir = tempname()
shutil.copytree(htmd.home()+'/data/adaptive/', tmpdir)
os.chdir(tmpdir)
md = AdaptiveMD()
# md.dryrun = True
md.nmin = 1
md.nmax = 2
md.nepochs = 3
md.ticalag = 2
md.ticadim = 3
md.updateperiod = 5
md.projection = MetricDistance('protein and name CA', 'resname BEN and noh')
# md.generatorspath = htmd.home()+'/data/dhfr'
# md.datapath = 'input'
# md.app = AcemdLocal(inputfile='input.acemd')
# md.app = AcemdLocal(datadir='data')
else:
return text
def __str__(self):
return self.show(quiet=True)
def writeConf(self, fname='input'):
""" Write an acemd configuration file
Parameters
----------
fname : output file name
"""
text = self.show(quiet=True)
fo = open(fname, 'w')
fo.write(text)
fo.close()
if __name__ == "__main__":
#l=Acemd.protocols(quiet=True)
acemd = Acemd()
acemd.structure = '5dhfr_cube.psf'
acemd.consref = None
acemd.constraintscaling = None
acemd.parameters = 'par_all22_prot.inp'
homedir = htmd.home()
acemd.coordinates = '5dhfr_cube.pdb'
acemd.setup(homedir + '/data/dhfr', '/tmp/testdir', overwrite=True)
print(acemd)
H = (N * errs / np.cumsum(errs)) < 1
ranking[idx[H]] = 0
prob = ranking / np.sum(ranking)
spawnmicro = np.random.multinomial(N, prob)
return spawnmicro, prob
if __name__ == "__main__":
from htmd import AcemdLocal
import htmd
import os
import shutil
from htmd.util import tempname
tmpdir = tempname()
shutil.copytree(htmd.home() + '/data/adaptive/', tmpdir)
os.chdir(tmpdir)
md = AdaptiveMD()
# md.dryrun = True
md.nmin = 1
md.nmax = 2
md.nepochs = 3
md.ticalag = 2
md.ticadim = 3
md.updateperiod = 5
md.projection = MetricDistance('protein and name CA',
'resname BEN and noh')
# md.generatorspath = htmd.home()+'/data/dhfr'
# md.datapath = 'input'
# md.app = AcemdLocal(inputfile='input.acemd')
from htmd.molecule.util import boundingBox
import numpy as np
import ctypes
import htmd
import os
_order = ('hydrophobic', 'aromatic', 'hbond_acceptor', 'hbond_donor', 'positive_ionizable', 'negative_ionizable', 'metal', 'occupancies')
libdir = htmd.home(libDir=True)
occupancylib = ctypes.cdll.LoadLibrary(os.path.join(libdir, "occupancy_ext.so"))
def getVoxelDescriptors(mol, buffer, voxelsize=1):
""" Calculate descriptors of atom properties for voxels in a grid bounding the Molecule object.
Constructs a bounding box around Molecule with some buffer space. Then it
Parameters
----------
mol :
A Molecule object.
buffer : float
The buffer space to add to the bounding box. This adds zeros to the grid around the protein so that properties
which are at the edge of the box can be found in the center of one. Should be usually set to boxsize/2.
voxelsize : float
The voxel size in A
Returns
-------
features : np.ndarray
A list of boxes containing voxels and their properties
centers : np.ndarray
inmol.set('beta', self.constraints[sel], sel)
outfile = os.path.join(outputdir, self.acemd.coordinates)
inmol.write(outfile)
def addConstraint(self, atomselect, factor=1):
""" Convenience function for adding a new constraint to existing constraints.
Parameters
----------
atomselect : str
Atom selection of atoms we want to constrain
factor : float
The scaling factor of the constraints applied to the atoms
Example
-------
>>> eq.addConstraint('chain X', 0.3)
"""
self.constraints[atomselect] = factor
if __name__ == "__main__":
import htmd
eq = Equilibration()
eq.numsteps = 1000000
eq.temperature = 300
eq.reference = 'protein and name CA'
eq.selection = 'segname L and noh'
eq.box = [-20, 20, -20, 20, 43, 45]
eq.k = 5
eq.write(htmd.home() + '/data/equilibrate', '/tmp/equil1')
pass
if dataDir:
return os.path.join(homeDir, "data", dataDir)
elif libDir:
libdir = os.path.join(homeDir, "lib", platform.system() )
if not os.path.exists( libdir ):
raise FileNotFoundError('Could not find libs.')
return libdir
# if os.path.exists(os.path.join(libdir, "basic")):
# return os.path.join(libdir, "basic", platform.system())
# elif os.path.exists(os.path.join(libdir, "pro")):
# return os.path.join(libdir, "pro", platform.system())
# else:
# raise FileNotFoundError('Could not find libs.')
else:
return homeDir
#Don't know how to do this
# def modulehome(modname):
# return os.path.dirname(os.path.dirname(inspect.getfile(modname)))
if __name__ == "__main__":
import doctest
doctest.testmod()
h = htmd.home()
print(h)
centers
"""
centers = centers.astype(np.float64)
channelsigmas = channelsigmas.astype(np.float64)
nchannels = channelsigmas.shape[1]
occus = np.zeros((centers.shape[0], nchannels))
coords = np.squeeze(mol.coords[:, :, 0])
occupancylib.descriptor_ext(centers.ctypes.data_as(ctypes.POINTER(ctypes.c_double)),
coords.ctypes.data_as(ctypes.POINTER(ctypes.c_float)),
channelsigmas.ctypes.data_as(ctypes.POINTER(ctypes.c_double)),
occus.ctypes.data_as(ctypes.POINTER(ctypes.c_double)),
ctypes.c_int(occus.shape[0]), # n of centers
ctypes.c_int(coords.shape[0]), # n of atoms
ctypes.c_int(nchannels)) # n of channels
return occus
if __name__ == '__main__':
from htmd.molecule.molecule import Molecule
from htmd.home import home
import os
import numpy as np
testf = os.path.join(home(), 'data', 'test-voxeldescriptors')
resOcc, resCent, N = getVoxelDescriptors(Molecule(os.path.join(testf, '3ptb.pdbqt')), buffer=8, voxelsize=1)
resOcc = resOcc.reshape(N[0], N[1], N[2], resOcc.shape[1])
refOcc = np.load(os.path.join(testf, '3PTB_occ.npy'))
refCent = np.load(os.path.join(testf, '3PTB_center.npy'))
assert np.allclose(resOcc, refOcc)
assert np.allclose(resCent, refCent)
md.updateperiod = 5
md.projection = MetricDistance("protein and name CA",
"resname BEN and noh",
periodic="selections")
# md.goalprojection = MetricRmsd(Molecule(htmd.home() + '/data/adaptive/generators/1/structure.pdb'),
# 'protein and name CA')
md.goalfunction = rmsdgoal
# md.app = LocalGPUQueue()
# md.run()
# Some real testing now
from moleculekit.projections.metricsecondarystructure import (
MetricSecondaryStructure, )
from moleculekit.projections.metricdistance import MetricSelfDistance
os.chdir(path.join(home(), "data", "test-adaptive"))
goalProjectionDict = {
"ss":
MetricSecondaryStructure(),
"contacts":
MetricSelfDistance("protein and name CA",
metric="contacts",
threshold=10),
"ss_contacts": [
MetricSecondaryStructure(),
MetricSelfDistance("protein and name CA",
metric="contacts",
threshold=10),
],
}
-------
data : np.ndarray
An array containing the null data.
"""
trajlen = mol.numFrames
data = np.zeros((trajlen, self._ndim), dtype=np.float32)
return data
if __name__ == "__main__":
import htmd
import htmd.projections.metricnull
dd = htmd.home(dataDir="adaptive")
fsims = htmd.simlist([dd + '/data/e1s1_1/', dd + '/data/e1s2_1/'],
dd + '/generators/1/structure.pdb')
metr2 = htmd.Metric(fsims)
metr2.projection(htmd.projections.metricnull.MetricNull(2))
data2 = metr2.project()
assert data2.dat[0].shape == (6, 2)
metr1 = htmd.Metric(fsims)
metr1.projection(htmd.projections.metricnull.MetricNull(1))
data1 = metr1.project()
assert data1.dat[0].shape == (6, 1)
pass
md.ticalag = 2
md.ticadim = 3
md.updateperiod = 5
md.projection = MetricDistance('protein and name CA', 'resname BEN and noh')
# md.goalprojection = MetricRmsd(Molecule(htmd.home() + '/data/adaptive/generators/1/structure.pdb'),
# 'protein and name CA')
md.goalfunction = rmsdgoal
# md.app = AcemdLocal()
# md.run()
# Some real testing now
from htmd.projections.metricsecondarystructure import MetricSecondaryStructure
from htmd.projections.metricdistance import MetricSelfDistance
import numpy as np
os.chdir(path.join(home(), 'data', 'test-adaptive'))
goalProjectionDict = {'ss': MetricSecondaryStructure(),
'contacts': MetricSelfDistance('protein and name CA', metric='contacts', threshold=10),
'ss_contacts': [MetricSecondaryStructure(),
MetricSelfDistance('protein and name CA', metric='contacts', threshold=10)]}
def getLongContacts(crystal, long=8):
crystalMap = MetricSelfDistance('protein and name CA', metric='contacts', threshold=10, pbc=False).getMapping(
crystal)
indexes = np.vstack(crystalMap.atomIndexes.values)
return crystal.resid[indexes[:, 1]] - crystal.resid[indexes[:, 0]] > long
def getCrystalSS(crystal):
return MetricSecondaryStructure().project(crystal)[0]
md.ticadim = 3
md.updateperiod = 5
md.projection = MetricDistance('protein and name CA',
'resname BEN and noh')
# md.goalprojection = MetricRmsd(Molecule(htmd.home() + '/data/adaptive/generators/1/structure.pdb'),
# 'protein and name CA')
md.goalfunction = rmsdgoal
# md.app = AcemdLocal()
# md.run()
# Some real testing now
from htmd.projections.metricsecondarystructure import MetricSecondaryStructure
from htmd.projections.metricdistance import MetricSelfDistance
import numpy as np
os.chdir(path.join(home(), 'data', 'test-adaptive'))
goalProjectionDict = {
'ss':
MetricSecondaryStructure(),
'contacts':
MetricSelfDistance('protein and name CA',
metric='contacts',
threshold=10),
'ss_contacts': [
MetricSecondaryStructure(),
MetricSelfDistance('protein and name CA',
metric='contacts',
threshold=10)
]
}
-------
data : np.ndarray
An array containing the null data.
"""
trajlen = mol.numFrames
data = np.zeros((trajlen, self._ndim), dtype=np.float32)
return data
if __name__ == "__main__":
import htmd
import htmd.projections.metricnull
dd = htmd.home(dataDir="adaptive")
fsims = htmd.simlist([dd + '/data/e1s1_1/', dd + '/data/e1s2_1/'],
dd + '/generators/1/structure.pdb')
metr2 = htmd.Metric(fsims)
metr2.projection(htmd.projections.metricnull.MetricNull(2))
data2 = metr2.project()
assert data2.dat[0].shape == (6, 2)
metr1 = htmd.Metric(fsims)
metr1.projection(htmd.projections.metricnull.MetricNull(1))
data1 = metr1.project()
assert data1.dat[0].shape == (6, 1)
pass
# print(coords.shape)
for f in range(coords.shape[2]):
cstep = c_int(step[f])
ctime = c_float(time[f]) # TODO FIXME
# print ( step )
# print ( time )
bbox[0] = box[0, f] * 0.1
bbox[1] = box[1, f] * 0.1
bbox[2] = box[2, f] * 0.1
data = coords[:, :, f].astype(numpy.float32) * 0.1 # Convert from A to nm
pos = data.ctypes.data_as(POINTER(c_float))
lib['libxtc'].xtc_write(
c_char_p(filename.encode("ascii")),
natoms,
cstep,
ctime,
pos,
bbox)
pass
if __name__ == "__main__":
from htmd.molecule.molecule import Molecule
from htmd.home import home
from os import path
m = Molecule(path.join(home(), 'data', 'dhfr', 'dhfr.pdb'))
m.read(path.join(home(), 'data', 'dhfr', 'dhfr.xtc'))
m.write('/tmp/test.xtc')
def _spawn(self, ranking, N, truncated=False):
if truncated:
idx = np.argsort(ranking)
idx = idx[::-1] # decreasing sort
errs = ranking[idx]
H = (N * errs / np.cumsum(errs)) < 1
ranking[idx[H]] = 0
prob = ranking / np.sum(ranking)
spawnmicro = np.random.multinomial(N, prob)
return spawnmicro, prob
if __name__ == "__main__":
from htmd import AcemdLocal
import htmd
from os import chdir
from tempfile import mkdtemp
chdir(mkdtemp())
md = AdaptiveRun()
md.dryrun = True
md.nmin = 2
md.nmax = 3
md.nepochs = 2
md.ticadim = 0
md.metricsel1 = 'name CA'
md.generatorspath = htmd.home()+'/data/dhfr'
#md.app = AcemdLocal()
# md.run() # Disabled because I can't assume acemd is installed in travis machines
inputdir : str
Path to a directory containing the files produced by a equilibration process.
outputdir : str
Directory where to write the production setup files.
"""
self.acemd.temperature = self.temperature
self.acemd.langevintemp = self.temperature
if self.k > 0: #use TCL only for flatbottom
mol = Molecule(os.path.join(inputdir, self.acemd.coordinates))
self.acemd.tclforces = 'on'
TCL = self._TCL
TCL = TCL.replace('KCONST', str(self.k))
TCL = TCL.replace('REFINDEX', ' '.join(map(str, mol.get('index', self.reference))))
TCL = TCL.replace('SELINDEX', ' '.join(map(str, mol.get('index', self.selection))))
TCL = TCL.replace('BOX', ' '.join(map(str, self.box)))
self.acemd.TCL = TCL
self.acemd.setup(inputdir, outputdir, overwrite=True)
if __name__ == "__main__":
md = Production()
md.temperature = 300
md.reference = 'protein and name CA'
md.selection = 'segname L and noh'
md.acemd.extendedsystem = None # use different data
md.acemd.binindex = None # use different data
md.box = [-20, 20, -20, 20, 43, 45]
md.k = 5
md.write(htmd.home() +'/data/equilibrate', '/tmp/prod')
md.k = 0
md.write(htmd.home() +'/data/equilibrate', '/tmp/prod0')
mol = Molecule(os.path.join(self.inputdir, self.acemd.coordinates))
self.acemd.tclforces = 'on'
TCL = self._TCL
TCL = TCL.replace('KCONST', str(self.k))
TCL = TCL.replace(
'REFINDEX', ' '.join(map(str, mol.get('index',
self.reference))))
TCL = TCL.replace(
'SELINDEX', ' '.join(map(str, mol.get('index',
self.selection))))
TCL = TCL.replace('BOX', ' '.join(map(str, self.box)))
self.acemd.TCL = TCL
self.acemd.setup(self.inputdir, self.outputdir, overwrite=True)
if __name__ == "__main__":
eq = Production()
eq.temperature = 300
eq.reference = 'protein and name CA'
eq.selection = 'segname L and noh'
eq.acemd.extendedsystem = None # use different data
eq.acemd.binindex = None # use different data
eq.box = [-20, 20, -20, 20, 43, 45]
eq.k = 5
eq.inputdir = htmd.home() + '/data/equilibrate'
eq.outputdir = '/tmp/prod'
eq.write()
eq.k = 0
eq.outputdir = '/tmp/prod0'
eq.write()