#!/usr/bin/env python

#
# $Id: pvid.py,v 1.3 2011/10/28 13:47:17 dintrans Exp $
# Animate the entropy snapshots with the velocity field superimposed
#

import numpy as N
import pylab as P
import pencil as pc

f, t = pc.read_slices(field='uu1', proc=0, extension='xy')

dim=pc.read_dim()
par=pc.read_param(quiet=True)
par2=pc.read_param(quiet=True, param2=True)
grid=pc.read_grid(param=par, quiet=True, trim=True)
nt=len(t)

#qs1=N.random.random_integers(0,dim.nx-1, 1000)
#qs2=N.random.random_integers(0,dim.nz-1, 1000)
#xx,zz=P.meshgrid(grid.x, grid.z)
frame=par.xyz0[0],par.xyz1[0],par.xyz0[1],par.xyz1[1]

P.ion()
im=P.imshow(f[0,...], extent=frame, origin='lower', aspect='auto')
#vel=P.quiver(xx[qs2, qs1], zz[qs2, qs1], ux[0, qs2, qs1],
#uz[0, qs2, qs1], scale=0.2) #, units='width')
st=P.figtext(0.8,0.2,'t=%.1f'%t[0], color='w')
P.xlabel('x')
P.ylabel('y')

for i in range(1, nt):
  im.set_data(f[i, ...])
# vel.set_UVC(ux[i, qs2, qs1], uz[i, qs2, qs1])
  st.set_text('t=%.1f'%t[i])

  P.draw()

P.show()