Ejemplo n.º 1
0
different trajectory formats.

"""

# from MDAnalysis.tests.datafiles import PRMpbc,TRJpbc_bz2
from MDAnalysis.tests.datafiles import PRM, TRJ_bz2
from MDAnalysis import Universe, Writer
from MDAnalysis.core.util import greedy_splitext

import os.path

topol = PRM  # PRMpbc
intrj = TRJ_bz2  # TRJpbc_bz2
ext = '.dcd'  # output format determined by extension

root, oldext = greedy_splitext(os.path.basename(intrj))
outtrj = root + ext
outpdb = root + '.pdb'

u = Universe(topol, intrj)

# create a writer instance for the output trajectory
w = Writer(outtrj, u.trajectory.numatoms)

# loop through the trajectory and write a frame for every step
for ts in u.trajectory:
    w.write(ts)
    print "Converted frame %d" % ts.frame
w.close_trajectory()
print "Converted %r --> %r" % (intrj, outtrj)
Ejemplo n.º 2
0
def Run(topol, intrj):
    ext = '.dcd'
    atom_l = Simple_atom.Get_Simple_atom_list(topol)
    new_list, store_list = Check(atom_l)

    NUM = store_list[0][2]
    for a in store_list:
        if NUM > a[2]:
            NUM = a[2]

    root, oldext = greedy_splitext(os.path.basename(intrj))
    outpdb = root + '.pdb'

    u = Universe(topol, intrj)
    NUM_ATOMS = len(new_list)

    # create a writer instance for the output trajectory
    outtrj = [root + str(i) + ext for i in range(NUM)]
    w = [Writer(outtrj[i], NUM_ATOMS) for i in range(NUM)]
    Atom_list = [copy.deepcopy(new_list) for i in range(NUM)]
    '''
    NUM copies new_list   
    '''

    # loop through the trajectory and write a frame for every step
    for ts in u.trajectory:
        for i in range(NUM_ATOMS):
            if i < store_list[0][0] - 1:
                for s in range(NUM):
                    Atom_list[s][i].atom_coor_x = ts._x[i]
                    Atom_list[s][i].atom_coor_y = ts._y[i]
                    Atom_list[s][i].atom_coor_z = ts._z[i]

            elif i > store_list[-1][1] - 1:
                LENGTH = 0
                for a in store_list:
                    LENGTH = LENGTH + (a[2] - 1) * (a[1] - a[0] + 1)
                for s in range(NUM):
                    Atom_list[s][i].atom_coor_x = ts._x[i + LENGTH]
                    Atom_list[s][i].atom_coor_y = ts._y[i + LENGTH]
                    Atom_list[s][i].atom_coor_z = ts._z[i + LENGTH]
            else:
                LENGTH = 0
                for j in range(len(store_list)):
                    if i > store_list[j][0] - 2 and i < store_list[j][1]:
                        if j > 0:
                            for a in store_list[:j]:
                                LENGTH = LENGTH + (a[2] - 1) * (a[1] - a[0] +
                                                                1)
                        else:
                            LENGTH = 0

                        for s in range(NUM):
                            Atom_list[s][i].atom_coor_x = ts._x[
                                store_list[j][0] - 1 + LENGTH + s +
                                (i + 1 - store_list[j][0]) * store_list[j][2]]
                            Atom_list[s][i].atom_coor_y = ts._y[
                                store_list[j][0] - 1 + LENGTH + s +
                                (i + 1 - store_list[j][0]) * store_list[j][2]]
                            Atom_list[s][i].atom_coor_z = ts._z[
                                store_list[j][0] - 1 + LENGTH + s +
                                (i + 1 - store_list[j][0]) * store_list[j][2]]

                for j in range(len(store_list) - 1):
                    if i > store_list[j][1] - 1 and i < store_list[j +
                                                                   1][0] - 1:
                        for a in store_list[:j + 1]:
                            LENGTH = LENGTH + (a[2] - 1) * (a[1] - a[0] + 1)

                        for s in range(NUM):
                            Atom_list[s][i].atom_coor_x = ts._x[i + LENGTH]
                            Atom_list[s][i].atom_coor_y = ts._y[i + LENGTH]
                            Atom_list[s][i].atom_coor_z = ts._z[i + LENGTH]

        new_ts = [Timestep(NUM_ATOMS) for i in range(NUM)]

        for i in range(NUM_ATOMS):
            for s in range(NUM):
                new_ts[s]._x[i] = Atom_list[s][i].atom_coor_x
                new_ts[s]._y[i] = Atom_list[s][i].atom_coor_y
                new_ts[s]._z[i] = Atom_list[s][i].atom_coor_z

        for s in range(NUM):
            w[s].write(new_ts[s])
        usage.echo("Converted frame %d\r" % ts.frame)
    for s in range(NUM):
        w[s].close_trajectory()
    print "Converted %r --> %r" % (intrj, outtrj)

    # make a pdb file as a simple 'topology'
    u.trajectory.rewind()
    for atom in Atom_list[0]:
        atom.atom_coor_x = atom.atom_coor_x / 10
        atom.atom_coor_y = atom.atom_coor_y / 10
        atom.atom_coor_z = atom.atom_coor_z / 10

    Simple_atom.Save_file(outpdb, Atom_list[0])
    print "Created %r to be used with the trajectory" % outpdb
Ejemplo n.º 3
0
def Run(topol,intrj):
    ext='.dcd'
    atom_l=Simple_atom.Get_Simple_atom_list(topol)
    new_list,store_list=Check(atom_l)

    NUM=store_list[0][2]
    for a in store_list:
        if NUM> a[2]:
            NUM=a[2]
        

    root, oldext = greedy_splitext(os.path.basename(intrj))
    outpdb = root + '.pdb'

    u = Universe(topol, intrj)
    NUM_ATOMS=len(new_list)

    # create a writer instance for the output trajectory
    outtrj = [root+str(i)+ ext for i in range(NUM)]
    w =[ Writer(outtrj[i], NUM_ATOMS) for i in range(NUM)]
    Atom_list=[copy.deepcopy(new_list) for i in range(NUM)]
    '''
    NUM copies new_list   
    '''

    # loop through the trajectory and write a frame for every step
    for ts in u.trajectory:
        for i in range(NUM_ATOMS):
            if i < store_list[0][0]-1 :
                for s in range(NUM):
                    Atom_list[s][i].atom_coor_x=ts._x[i]
                    Atom_list[s][i].atom_coor_y=ts._y[i]
                    Atom_list[s][i].atom_coor_z=ts._z[i]

            elif i > store_list[-1][1]-1:
                LENGTH=0
                for a in store_list:
                    LENGTH=LENGTH+(a[2]-1)*(a[1]-a[0]+1)
                for s in range(NUM):
                    Atom_list[s][i].atom_coor_x=ts._x[i+LENGTH]
                    Atom_list[s][i].atom_coor_y=ts._y[i+LENGTH]
                    Atom_list[s][i].atom_coor_z=ts._z[i+LENGTH]
            else:
                LENGTH=0
                for j in range(len(store_list)):
                    if i > store_list[j][0]-2 and i < store_list[j][1]:
                        if j > 0:
                            for a in store_list[:j]:
                                LENGTH=LENGTH+(a[2]-1)*(a[1]-a[0]+1)
                        else:
                            LENGTH=0

                        for s in range(NUM):
                            Atom_list[s][i].atom_coor_x=ts._x[store_list[j][0]-1+LENGTH+s+(i+1-store_list[j][0])*store_list[j][2]]
                            Atom_list[s][i].atom_coor_y=ts._y[store_list[j][0]-1+LENGTH+s+(i+1-store_list[j][0])*store_list[j][2]]
                            Atom_list[s][i].atom_coor_z=ts._z[store_list[j][0]-1+LENGTH+s+(i+1-store_list[j][0])*store_list[j][2]]

                for j in range(len(store_list)-1):
                    if i > store_list[j][1]-1 and i < store_list[j+1][0]-1:
                        for a in store_list[:j+1]:
                            LENGTH=LENGTH+(a[2]-1)*(a[1]-a[0]+1)

                        for s in range(NUM):
                            Atom_list[s][i].atom_coor_x=ts._x[i+LENGTH]
                            Atom_list[s][i].atom_coor_y=ts._y[i+LENGTH]
                            Atom_list[s][i].atom_coor_z=ts._z[i+LENGTH]

        
        new_ts=[Timestep(NUM_ATOMS) for i in range(NUM)]
        

        for i in range(NUM_ATOMS):
            for s in range(NUM):
                new_ts[s]._x[i]=Atom_list[s][i].atom_coor_x
                new_ts[s]._y[i]=Atom_list[s][i].atom_coor_y
                new_ts[s]._z[i]=Atom_list[s][i].atom_coor_z

        for s in range(NUM):
            w[s].write(new_ts[s])
        usage.echo("Converted frame %d\r" % ts.frame)
    for s in range(NUM):
        w[s].close_trajectory()
    print "Converted %r --> %r" % (intrj, outtrj)

    # make a pdb file as a simple 'topology'
    u.trajectory.rewind()
    for atom in Atom_list[0]:
        atom.atom_coor_x=atom.atom_coor_x/10
        atom.atom_coor_y=atom.atom_coor_y/10
        atom.atom_coor_z=atom.atom_coor_z/10

    Simple_atom.Save_file(outpdb,Atom_list[0])
    print "Created %r to be used with the trajectory" % outpdb
Ejemplo n.º 4
0
"""

#from MDAnalysis.tests.datafiles import PRMpbc,TRJpbc_bz2
#from MDAnalysis.tests.datafiles import PRM,TRJ_bz2
from MDAnalysis import Universe, Writer
from MDAnalysis.core.util import greedy_splitext
from MDPackage import Simple_atom

import os.path
import sys

pdbfile = sys.argv[1]  #PRMpbc
#intrj =sys.argv[2] #TRJpbc_bz2
ext = '.xtc'  # output format determined by extension

root, oldext = greedy_splitext(os.path.basename(pdbfile))
outtrj = root + ext
outpdb = root + '_new.pdb'

u = Universe(pdbfile, )

# create a writer instance for the output trajectory
w = Writer(outtrj, u.trajectory.numatoms)
aa = Simple_atom.Get_Simple_atom_list(pdbfile)
NUM_FRAMES = len(aa) / u.trajectory.numatoms
# loop through the trajectory and write a frame for every step
ts = u.trajectory[0]
for i in range(NUM_FRAMES):
    for j in range(u.trajectory.numatoms):
        ts._x[j] = aa[i * u.trajectory.numatoms + j].atom_coor_x * 10
        ts._y[j] = aa[i * u.trajectory.numatoms + j].atom_coor_y * 10
Ejemplo n.º 5
0
"""

#from MDAnalysis.tests.datafiles import PRMpbc,TRJpbc_bz2
#from MDAnalysis.tests.datafiles import PRM,TRJ_bz2
from MDAnalysis import Universe, Writer
from MDAnalysis.core.util import greedy_splitext

import os.path
import sys

topol =sys.argv[1] #PRMpbc
intrj =sys.argv[2] #TRJpbc_bz2
ext = '.xtc'   # output format determined by extension

root, oldext = greedy_splitext(os.path.basename(intrj))
outtrj = root + ext
outpdb = root + '.pdb'

u = Universe(topol, intrj)

# create a writer instance for the output trajectory
w = Writer(outtrj, u.trajectory.numatoms)

# loop through the trajectory and write a frame for every step
for ts in u.trajectory:
    w.write(ts)
    print "Converted frame %d" % ts.frame
w.close_trajectory()
print "Converted %r --> %r" % (intrj, outtrj)
Ejemplo n.º 6
0
"""

#from MDAnalysis.tests.datafiles import PRMpbc,TRJpbc_bz2
#from MDAnalysis.tests.datafiles import PRM,TRJ_bz2
from MDAnalysis import Universe, Writer
from MDAnalysis.core.util import greedy_splitext
from MDPackage import Simple_atom

import os.path
import sys

pdbfile =sys.argv[1] #PRMpbc
#intrj =sys.argv[2] #TRJpbc_bz2
ext = '.xtc'   # output format determined by extension

root, oldext = greedy_splitext(os.path.basename(pdbfile))
outtrj = root + ext
outpdb = root + '_new.pdb'

u = Universe(pdbfile,)

# create a writer instance for the output trajectory
w = Writer(outtrj, u.trajectory.numatoms)
aa=Simple_atom.Get_Simple_atom_list(pdbfile)
NUM_FRAMES=len(aa)/u.trajectory.numatoms
# loop through the trajectory and write a frame for every step
ts = u.trajectory[0]
for i in range(NUM_FRAMES):
    for j in range(u.trajectory.numatoms):
        ts._x[j]=aa[i*u.trajectory.numatoms+j].atom_coor_x*10
        ts._y[j]=aa[i*u.trajectory.numatoms+j].atom_coor_y*10