#!/usr/bin/env python
""" This example illustrates visualizing a four dimensional data set
(a series of 3D volumes). The same method can be used to visualize
the motion of lines, images, meshes, etc.
"""
import visvis as vv
# create multiple instances of the same volume (simulate motion)
vols = [vv.aVolume()]
for i in range(9):
vol = vols[i].copy()
vol[2:] = vol[:-2]
vol[:2] = 0
vols.append(vol)
# create figure, axes, and data container object
f = vv.clf()
a = vv.gca()
m = vv.MotionDataContainer(a)
# create volumes, loading them into opengl memory, and insert into container.
for vol in vols:
t = vv.volshow(vol)
t.parent = m
t.colormap = vv.CM_HOT
# Remove comments to use iso-surface rendering
#t.renderStyle = 'iso'
#t.isoThreshold = 0.2
# set some settings
a.daspect = 1,1,-1
a.xLabel = 'x'
a.yLabel = 'y'
a.zLabel = 'z'
# Enter main loop
app = vv.use()
app.Run()
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