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#!/usr/bin/env python
"""
Copyright 2001 Pearu Peterson all rights reserved,
Pearu Peterson <pearu@ioc.ee>
Permission to use, modify, and distribute this software is given under the
terms of the LGPL. See http://www.fsf.org
NO WARRANTY IS EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
$Revision: 1.1 $
$Date: 2001-05-20 12:51:29 $
Pearu Peterson
"""
__version__ = "$Id: LookupTable.py,v 1.1 2001-05-20 12:51:29 pearu Exp $"
import common
import DataSetAttr
import string
class LookupTable(DataSetAttr.DataSetAttr):
"""Holds VTK LookupTable.
"""
def __init__(self,table,name=None):
self.name = self._get_name(name)
self.table = self.get_n_seq_seq(table,[0,0,0,0])
if len(self.table[0])!=4:
raise ValueError,'expected sequence of 4-sequences but got %s'%(len(self.table[0]))
def to_string(self,format='ascii'):
ret = ['LOOKUP_TABLE %s %s'%(self.name,len(self.table))]
seq = self.table
if format=='binary':
if not common.is_int255(seq):
seq = self.float01_to_int255(seq)
ret.append(self.seq_to_string(seq,format,'unsigned char'))
else:
if not common.is_float01(seq):
seq = self.int255_to_float01(seq)
ret.append(self.seq_to_string(seq,format,'float'))
return string.join(ret,'\n')
def get_size(self):
return len(self.table)
if __name__ == "__main__":
print LookupTable([[3,3],[4,3],240,3,2]).to_string()
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