def _extract_phi6_values(phi6_key,conn,fr_num):
'''Takes in a phi6 computation number, assumed to be a length one tuple
as comes out of the sql function the sql connection, and a frame number'''
(fname,iden_key,dset_key) = conn.execute("select fout,iden_key,dset_key from phi6" +
" where comp_key = ?",
phi6_key).fetchone()
f = h5py.File(fname,'r')
ns = f[ff(fr_num)][fd('neighborhood_size',phi6_key[0])][:]
x = f[ff(fr_num)][fd('x',iden_key)][:]
# hack to deal with bug in size of output vectors, now fixed in the c++
if(x.shape != ns.shape):
if(x.shape > ns.shape and len(x.shape) ==1):
ns_full = np.append(ns,-1*np.ones(np.array(x.shape) - np.array(ns.shape)))
else:
ns_full = ns
x = x[ns>0]
y = f[ff(fr_num)][fd('y',iden_key)][:]
y = y[ns_full>0]
phi = f[ff(fr_num)][fd('scaler_order_parameter',phi6_key[0])]
phi = phi[ns>0]
f.close()
del f
return x,y,phi,ns[ns>0]
def _plot_file_frame_nsize(key,conn,fr_num,fnameg=None):
'''
'''
(fname,p_comp) = conn.execute("select fout,comp_key from comps where function = 'phi6' and dset_key = ?;",(key,)).fetchone()
(comp_number,) = conn.execute("select comp_key from comps where function = 'Iden' and fout = ?",(fname,)).fetchone()
(sname,stype,temp) = conn.execute("select sname,dtype,temp from dsets where key = ?",(key,)).fetchone()
f = h5py.File(fname,'r')
x = f[ff(fr_num)][fd('x',iden_key)]
x = f[ff(fr_num)][fd('y',iden_key)]
ns = f[ff(fr_num)][fd('neighborhood_size',iden_key)]
print np.mean(ns)
# check interactive plotting and turn it off
istatus = plt.isinteractive();
print istatus
if istatus:plt.ioff()
leg_hands = []
leg_strs = []
fig = plt.figure()
ax = fig.add_axes([.1,.1,.8,.8])
ax.hold(True)
#ax.set_aspect('equal')
# ax.scatter(x,y,c=ns)
ax.hist(ns,bins=range(0,10))
ax.set_title(sname + " temp: " + str(temp))
# plt.plot(x,y,'ro')
if not fnameg == None:
f_path = '/home/tcaswell/python/figures/' + sname + '/'
if not os.path.isdir(f_path):
os.makedirs(f_path)
fnameg = f_path + str(key) + '_phi6.eps'
fig.savefig(fnameg)
if istatus:
print "displaying figure"
plt.ion()
plt.show()
else:
print "closing figure"
plt.close(fig)
def testing(phi6_key,conn,fr_num):
'''Takes in a phi6 computation number, assumed to be a length one tuple
as comes out of the sql function the sql connection, and a frame number'''
(fname,iden_key,dset_key) = conn.execute("select fout,iden_key,dset_key from phi6" +
" where comp_key = ?",
phi6_key).fetchone()
f = h5py.File(fname,'r')
ns = f[ff(fr_num)][fd('neighborhood_size',phi6_key[0])][:]
x = f[ff(fr_num)][fd('x',iden_key)][:]
f.close()
del f
return (x.shape,ns.shape)
def new_track_density(track_key,hist_dims,conn):
"""This makes a 2D histogram of where new tracks are found in the
sample. This is useful to check if there are regions of the
sample that are tracking badly"""
# extract all of the md needed to look up the data
(fname,iden_key,track_key,dset_key) = conn.execute("select fout,iden_key,comp_key,dset_key from tracking where comp_key = ?",
track_key).fetchone()
print fname
F = h5py.File(fname,'r')
print F.keys()[:5]
try:
start_plane = F[fd('tracking',track_key)]['start_plane'][:]
start_part = F[fd('tracking',track_key)]['start_particle'][:]
print len(start_plane)
# figure out the right size to make the array
dims = F.attrs['dims']
print dims
# make data collection object
hist2D_ac = Hist2D_accumlator(dims,hist_dims)
# loop over the heads of track index and hash result
cur_plane = None
cur_x = None
cur_y = None
temp = 0
fr_count = 0
for plane,part in zip(start_plane,start_part):
if not plane == cur_plane:
cur_plane = plane
cp = F[ff(cur_plane)]
cur_x = cp[fd('x',iden_key)]
cur_y = cp[fd('y',iden_key)]
temp += cp.attrs['temperature']
fr_count += 1
hist2D_ac.add_point(
(cur_x[part],
cur_y[part])
)
pass
except ValueError,er:
print ff(cur_plane)
def extract_region(track_comp_key,region,init_frame,conn):
''' Extracts the tracks in a given region starting from the frame init_frame
region = [x_offset y_offset x_len y_len]
'''
# make sure track id is valid
# extract comp_id
(fin,dset_key,iden_key) = conn.execute("select fout,dset_key,iden_key from tracking where" +
" comp_key=?",
(track_comp_key,)).fetchone()
# open file
F = h5py.File(fin,'r')
tc = Track_shelf()
try:
# extract list of particles in ROI
x = F[ff(init_frame)][fd('x',iden_key)][:]
y = F[ff(init_frame)][fd('y',iden_key)][:]
tc.dtime = F[ff(init_frame)].attrs['dtime']
tc.sp_scale = gen.extract_spatial_calibration(F[ff(init_frame)])
ind = matplotlib.mlab.find((x>region[0]) * (y>region[1]) \
* (x<(region[0] + region[2] ) )*( y<(region[1] + region[3])))
DW = data_wrapper(F,iden_key,track_comp_key)
# loop over particles in region and extract tracks
tc.tracks = [extract_track(DW,init_frame,i,track(init_frame)) for i in ind]
return tc
finally:
# close hdf file and clean up
F.close()
del F
def _extract_tracks(F,start_plane,start_indx,iden_key,track_key):
frame_num = start_plane
g_x = F[ff(frame_num)][fd('x',iden_key)]
g_y = F[ff(frame_num)][fd('y',iden_key)]
g_nxt = F[ff(frame_num)][fd('next_part',track_key)]
trks = [[(g_x[s],g_y[s],g_nxt[s])] for s in start_indx]
frame_num += 1
while ff(frame_num) in F.keys():
g_x = F[ff(frame_num)][fd('x',iden_key)]
g_y = F[ff(frame_num)][fd('y',iden_key)]
g_nxt = F[ff(frame_num)][fd('next_part',track_key)]
for t in trks:
s = t[-1][-1]
if s != -1:
t.append((g_x[s],g_y[s],g_nxt[s]))
frame_num += 1
return trks
def get_cords(self,frame_num):
return (self.F[gen.ff(frame_num)][gen.fd('x',self.cnum)],
self.F[gen.ff(frame_num)][gen.fd('y',self.cnum)])
def coarse_grain_dedrift(track_key,conn,frame_start,forward_step,grid_size):
"""Coarse grains tracking data to detect anisotropic drift. This
version is slower because it computes the cumulative displacement
as it goes instead of using the MD in the tracking file. This
needs to be done because the was a bug that did not compute the
displacement."""
# sql stuff
(iden_key,fout) = conn.execute("select iden_key,fout from tracking inner join comps on tracking.comp_key = comps.comp_key where " +
"tracking.comp_key = ?",
track_key).fetchone()
try:
# open file
F = h5py.File(fout,'r')
# extract the data dimensions
dims = F.attrs['dims'][:]
hash_dims = dims//grid_size +1
# define a local has function
def hash_fun(x,y):
'''Local hash function '''
return int(x//grid_size + (y//grid_size )*hash_dims[0])
# set up data structures
cg_vectors = [np.array([0,0]) for i in range(0,hash_dims.prod())]
cg_count = np.zeros(hash_dims.prod())
# extract all of the relevant data
try:
start_frame = F[ff(frame_start)]
end_frame = F[ff(frame_start+forward_step)]
init_pos = zip(start_frame[fd('x',iden_key)][:],
start_frame[fd('y',iden_key)][:],
)
init_next_part = start_frame[fd('next_part',track_key[0])][:]
final_pos = zip(end_frame[fd('x',iden_key)][:],
end_frame[fd('y',iden_key)][:],
)
drift_val = (start_frame.attrs[fd('cumulative_displacement',track_key[0])][:]
- end_frame.attrs[fd('cumulative_displacement',track_key[0])][:])
except Exception:
raise
finally:
del start_frame
del end_frame
print F
next_part = []
poses = []
for j in range(0,forward_step):
frame_tmp = None
try:
frame_tmp = F[ff(frame_start + j + 1)]
next_part.append(frame_tmp[fd('next_part',track_key[0])][:])
poses.append(zip(frame_tmp[fd('x',iden_key)][:],
frame_tmp[fd('y',iden_key)][:],
))
del frame_tmp
except Exception:
print ff(frame_start + j + 1)
print F
print F.keys()
raise
finally:
# clean up hdf
F.close()
del F
# loop over particles in start frame
disp_sum = [(0,0) for j in range(0,forward_step-1)]
plane_count = np.zeros(forward_step-1)
for pos,nxt_p in zip(init_pos,init_next_part):
die_flag = False
prev_pos = pos
if nxt_p == -1:
continue
for j in range(0,forward_step-1):
if nxt_p == -1:
die_flag = True
break
try:
tp = poses[j]
tmp_pos = tp[nxt_p]
disp_sum[j] = disp_sum[j] + ( np.array(tmp_pos) -np.array(prev_pos))
plane_count[j] +=1
prev_pos = tmp_pos
except Exception:
print j,nxt_p
nxt_p = next_part[j][nxt_p]
if die_flag or nxt_p == -1:
continue
fn_pos = final_pos[nxt_p]
disp = np.array(fn_pos) - np.array(pos)
n = hash_fun(*pos)
try:
cg_vectors[n] = cg_vectors[n] + disp
cg_count[n] += 1
except Exception:
print n
drift_val = np.sum([v/c for (v,c) in zip(disp_sum,plane_count)],0)
print drift_val
print np.mean([(v)/c for (v,c) in zip( cg_vectors,cg_count)],0)
# average the vectors
cg_avg = [(v)/c-drift_val for (v,c) in zip( cg_vectors,cg_count)]
# split up the results
u,v = zip(*cg_avg)
x,y = np.meshgrid(grid_size*(np.arange(0,hash_dims[0]) + .5),grid_size*(np.arange(0,hash_dims[1]) + .5))
return x,y,np.array(u),np.array(v),cg_count
def coarse_grain(track_key,conn,frame_start,forward_step,grid_size):
"""Coarse grains tracking data to detect anisotropic drift """
# sql stuff
(iden_key,fout) = conn.execute("select iden_key,fout from tracking inner join comps on tracking.comp_key = comps.comp_key where " +
"tracking.comp_key = ?",
track_key).fetchone()
# open file
F = h5py.File(fout,'r')
# extract the data dimensions
dims = F.attrs['dims'][:]
hash_dims = dims//grid_size +1
# define a local has function
def hash_fun(x,y):
'''Local hash function '''
return int(x//grid_size + (y//grid_size )*hash_dims[0])
# set up data structures
cg_vectors = [np.array([0,0]) for i in range(0,hash_dims.prod())]
cg_count = np.zeros(hash_dims.prod())
try:
# extract all of the relevant data
start_frame = F[ff(frame_start)]
init_pos = zip(start_frame[fd('x',iden_key)][:],
start_frame[fd('y',iden_key)][:],
)
init_next_part = start_frame[fd('next_part',track_key[0])][:]
end_frame = F[ff(frame_start+forward_step)]
final_pos = zip(end_frame[fd('x',iden_key)][:],
end_frame[fd('y',iden_key)][:],
)
next_part = []
for j in range(0,forward_step-1):
frame_tmp = F[ff(frame_start + j + 1)]
next_part.append(frame_tmp[fd('next_part',track_key[0])][:])
del frame_tmp
drift_val = (-start_frame.attrs[fd('cumulative_displacement',track_key[0])][:]
+ end_frame.attrs[fd('cumulative_displacement',track_key[0])][:])
del start_frame
del end_frame
finally:
# clean up hdf
F.close()
del F
# loop over particles in start frame
for pos,nxt_p in zip(init_pos,init_next_part):
die_flag = False
if nxt_p == -1:
continue
for j in range(0,forward_step-1):
if nxt_p == -1:
die_flag = True
break
nxt_p = next_part[j][nxt_p]
if die_flag or nxt_p == -1:
continue
fn_pos = final_pos[nxt_p]
disp = np.array(fn_pos) - np.array(pos)
n = hash_fun(*pos)
try:
cg_vectors[n] = cg_vectors[n] + disp
cg_count[n] += 1
except Exception:
print n
# average the vectors
cg_avg = [v for (v,c) in zip( cg_vectors,cg_count)]
print drift_val
print cg_vectors[:10]
cg_avg = [(v )/c - drift_val for (v,c) in zip( cg_vectors,cg_count)]
print cg_avg[:10]
# split up the results
u,v = zip(*cg_avg)
x,y = np.meshgrid(grid_size*(np.arange(0,hash_dims[0]) + .5),
grid_size*(np.arange(0,hash_dims[1]) + .5))
return x,y,u,v,cg_count
def population_sort_tracks(track_key,conn,frame_start,frame_step, cut_off):
"""This function takes in a track_key, a connection, and a displacement cut off.
Three lists are return: two lists of tuples that pair initial
position, final position, and displacement of each track that is
present in frame frame_start and lasts until at least frame_start
+ frame_step corresponding to above and below the cut off.
A list of the particles that are present in frame_start and do not
last long enough is ruterns"""
# defs
short_list = []
long_list = []
die_list = []
# sql stuff
(iden_key,fout) = conn.execute("select iden_key,fout from tracking inner join comps on tracking.comp_key = comps.comp_key where " +
"tracking.comp_key = ?",
track_key).fetchone()
# open file
F = h5py.File(fout,'r')
try:
# extract the initial position data
frame_tmp = F[ff(frame_start)]
init_pos = zip(frame_tmp[fd('x',iden_key)][:],
frame_tmp[fd('y',iden_key)][:],
)
track_id = frame_tmp[fd('track_id',track_key[0])][:]
init_next_part = frame_tmp[fd('next_part',track_key[0])][:]
del frame_tmp
frame_tmp = F[ff(frame_start + frame_step)]
# extract the final position data
final_pos = zip(frame_tmp[fd('x',iden_key)][:],
frame_tmp[fd('y',iden_key)][:])
del frame_tmp
# extract the next_particle data from all the frames between the two
next_part = []
for j in range(0,frame_step-1):
next_part.append(F[ff(frame_start + j + 1)][fd('next_part',track_key[0])][:])
pass
finally:
# make sure we clean up the hdf stuff
F.close()
print 'cleaned up'
del F
# walk along tracks to sort in to lists
for pos,nxt_p,tid in zip(init_pos,init_next_part,track_id):
die_flag = False
if tid == -1:
continue
for j in range(0,frame_step-1):
if nxt_p == -1:
die_flag = True
break
nxt_p = next_part[j][nxt_p]
if die_flag or nxt_p == -1:
die_list.append(pos)
continue
fn_pos = final_pos[nxt_p]
disp = np.array(pos) - np.array(fn_pos)
if np.abs(disp[0]) > cut_off or np.abs(disp[1]) > cut_off:
long_list.append((pos,fn_pos))
else:
short_list.append((pos,fn_pos))
return short_list,long_list,die_list
def print_info(F,frame_num,part_num,comp_num):
"""Prints returns (prev_part,next_part,track_id) for the given
particle and computation"""
return (F[ff(frame_num)][fd('prev_part',comp_num)][part_num],
F[ff(frame_num)][fd('next_part',comp_num)][part_num],
F[ff(frame_num)][fd('track_id',comp_num)][part_num])
def __init__(self,F,iden_key,track_key):
self.iden_key = iden_key
self.track_key = track_key
self.planes = [plane_wrapper(F[ff(f)],iden_key,track_key) for f in range(0,F.attrs['number-of-planes'])]
pass
def _plot_file_frame_phi6(key,conn,fr_num,fnameg=None):
'''
'''
(fname,p_comp) = conn.execute("select fout,comp_key from comps where function = 'phi6' and dset_key = ?;",(key,)).fetchone()
(comp_number,) = conn.execute("select comp_key from comps where function = 'Iden' and fout = ?",(fname,)).fetchone()
(sname,stype,temp) = conn.execute("select sname,dtype,temp from dsets where key = ?",(key,)).fetchone()
f = h5py.File(fname,'r')
fc = f.attrs['number-of-planes']
if fr_num <fc:
fr_num = fc-1
x = f[ff(fr_num)][fd('x',iden_key)][:]
x = f[ff(fr_num)][fd('y',iden_key)][:]
phi = f[ff(fr_num)][fd('scaler_order_parameter',iden_key)]
phir = np.zeros(phi.shape[0])
phii = np.zeros(phi.shape[0])
for j in range(0,phi.shape[0]):
phir[j] = phi[j][0]
phii[j] = phi[j][1]
print np.mean(abs(phir))
print np.mean(abs(phii))
print np.mean((phir))
print np.mean((phii))
# check interactive plotting and turn it off
istatus = plt.isinteractive();
print istatus
if istatus:plt.ioff()
leg_hands = []
leg_strs = []
fig = plt.figure()
ax = fig.add_axes([.1,.1,.8,.8])
ax.hold(True)
ax.set_aspect('equal')
ax.quiver(x,y,phir,phii,scale = 100,headlength = 2,headwidth= 1.5,headaxislength=2)
ax.set_title(sname + " temp: " + str(temp))
# plt.plot(x,y,'ro')
if not fnameg == None:
f_path = '/home/tcaswell/python/figures/' + sname + '/'
if not os.path.isdir(f_path):
os.makedirs(f_path)
fnameg = f_path + str(key) + '_phi6.png'
fig.savefig(fnameg,dpi = 500)
if istatus:
print "displaying figure"
plt.ion()
plt.show()
else:
print "closing figure"
plt.close(fig)
