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#import Tkinter
#from Tkinter import *
#from Scientific.TkWidgets.TkPlotCanvas import *
from Numeric import *
from scipy_base.fastumath import *
#from _Graphics import *
#import PIL.ImageTk,PIL.Image
#ImageTk = PIL.ImageTk
#Image = PIL.Image
import gist, types, string, os
import Mplot
import scipy.io as io
def read_act(filename):
fid = io.fopen('%s.act'%filename)
p = fid.fread(256*3,'byte')
fid.close()
p.shape = (256,3)
return p
Palette = {}
def make_palettes():
p = arange(0,256,1,typecode='b')[:,NewAxis] * \
ones((3,),typecode='b')[NewAxis,:]
Palette['gray'] = p
p = arange(0,256,1,typecode='b')[:,NewAxis] * \
array([0,0,1],typecode='b')[NewAxis,:]
Palette['blue'] = p
p = arange(0,256,1,typecode='b')[:,NewAxis] * \
array([1,0,0],typecode='b')[NewAxis,:]
Palette['red'] = p
p = arange(0,256,1,typecode='b')[:,NewAxis] * \
array([0,1,0],typecode='b')[NewAxis,:]
Palette['green'] = p
p = zeros((256,3),'b')
dp = (256-40)/128.0
p[:128,2] = arange(40,256,dp,typecode='b')[::-1]
p[128:,0] = arange(40,256,dp,typecode='b')
Palette['wave'] = p
Palette['Aaasmo'] = read_act('%s/Research/Library/Python/Graphics/Aaasmo'% os.environ['HOME'])
Palette['awave'] = read_act('%s/Research/Library/Python/Graphics/awave'% os.environ['HOME'])
def _interpolate_colormap(p,num):
assert(len(p.shape)==2)
assert(p.shape[1]<=3)
pf = p.astype('d')
pfnew = signaltools.resample(pf,num,axis=0)
return pfnew.astype('b')
def read_gist_palettes():
import commands
make_palettes()
read_gist_palettes()
##def NumPyToTkImage(data,size):
## data = ZeroOrderHold(data,size)
## shape = tuple(array(data.shape)[::-1])
## return ImageTk.PhotoImage(Image.fromstring("L",shape,data.tostring()))
def _makebytes(data,top,cmin,cmax):
if data.typecode == UnsignedInt8:
return data
if cmin is None:
if cmax is None:
bytedata = gist.bytscl(data,top=255)
else:
bytedata = gist.bytscl(data,cmax=cmax,top=255)
else:
if cmax is None:
bytedata = gist.bytscl(data,cmin=cmin,top=255)
else:
bytedata = gist.bytscl(data,cmin=cmin,cmax=cmax,top=255)
return bytedata
def _makewavebytes(data,bot,top,cmin,cmax):
if top is None:
top = 255
if bot is None:
bot = 1
mid = (top+1) / 2 # Zero will get mapped to here.
if cmin is None:
cmin = min(ravel(data))
if cmax is None:
cmax = max(ravel(data))
bytelow = (mid-bot)/(0.0-cmin) * data + mid
bytehigh = (top - mid)/(cmax-0.0) * data + mid
bytedata = where(greater(data,0),bytehigh,bytelow).astype('b')
return bytedata
##def array2image(data,expand=None,top=255,cmin=None,cmax=None,p=None):
## """array2image(data,expand=None,cmin=None,cmax=None,p=None)"""
## assert(len(data.shape) == 2)
## shape = (data.shape[1],data.shape[0])
## bytedata = _makebytes(data,top,cmin,cmax)
## if expand is not None:
## if type(expand) is types.IntType:
## expand = (expand,expand)
## assert(type(expand) in [types.TupleType, ArrayType, types.ListType])
## assert(expand[0] > 0 and expand[1] > 0)
## size = tuple(array(shape)*array(expand))
## bytedata = ZeroOrderHold(bytedata,size)
## shape = (size[1],size[0])
## image = Image.fromstring("L",shape,bytedata.tostring())
## if p is not None:
## image.putpalette(asarray(p,typecode='b').tostring())
## return image
def write_frames(data,filename,dim=0,expand=None,cmin=None,cmax=None,p=None):
"""filelist =
write_frames(data,filename,dim=0,expand=None,cmin=None,cmax=None,p=None)
"""
assert(dim < 3)
assert(len(data.shape) == 3)
slobj = [slice(None)]*3
filelist = []
#data = _makebytes(data,255,cmin,cmax) # scale all frames the same
for k in range(data.shape[dim]):
slobj[dim] = k
im = array2image(data[slobj],expand,cmin=cmin,cmax=cmax,p=p)
file = '%s%03d.png'%(filename,k)
im.save(file)
filelist.append(file)
return filelist
def make_movie(data,filename,dim=0,expand=None,cmin=None,cmax=None,p=None):
"""make_movie(data,filename,dim=0,expand=None,cmin=None,cmax=None,p=None)"""
assert(dim < 3)
assert(len(data.shape) == 3)
slobj = [slice(None)]*3
filelist = []
data = _makebytes(data,255,cmin,cmax) # scale all frames the same
for k in range(data.shape[dim]):
slobj[dim] = k
im = array2image(data[slobj],expand,top=255,cmin=cmin,cmax=cmax,p=p)
im2 = im.convert('RGB')
file = '/tmp/%s%03d.tiff'%(filename,k)
im2.save(file)
filelist.append(file)
os.system('convert %s %s.mpg' % (string.join(filelist," "),filename))
os.system('rm %s' % string.join(filelist," "))
def make_wavemovie(data,filename,dim=0,expand=None,cmin=None,cmax=None,p=None):
"""make_wavemovie(data,filename,dim=0,expand=None,cmin=None,cmax=None,p=None)"""
assert(dim < 3)
assert(len(data.shape) == 3)
slobj = [slice(None)]*3
filelist = []
data = _makewavebytes(data,0,255,cmin,cmax) # scale all frames the same
for k in range(data.shape[dim]):
slobj[dim] = k
im = array2image(data[slobj],expand,top=255,cmin=cmin,cmax=cmax,p=p)
file = '/tmp/%s%03d.gif'%(filename,k)
im.save(file)
filelist.append(file)
os.system('convert %s %s.gif' % (string.join(filelist," "),filename))
os.system('rm %s' % string.join(filelist," "))
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