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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: DataSet.py,v 1.1 2001/05/20 12:51:29 pearu Exp $"
import common
class DataSet(common.Common):
"""Abstract class.
It describes the geometry and topology of VTK dataset.
"""
def get_size(self):
if hasattr(self,'points'):
return len(self.points)
return reduce(lambda x,y:x*y,self.dimensions,1)
def get_cell_size(self):
return 0
def _check_dimensions(self):
for i in range(3):
d = self.dimensions[i]
if not common.is_int(d):
self.error('dimensions[%s] must be int but got %s'%(i,type(d)))
return 1
if d<=0:
self.error('dimensions[%s] must be positive int but got %s'%(i,d))
return 1
if hasattr(self,'points'):
d = reduce(lambda x,y:x*y,self.dimensions,1)
if len(self.points)!=d:
self.error('mismatch of points length (%s) and dimensions size (%s)'%(len(self.points),d))
return 1
return 0
def _check_origin(self):
for i in range(3):
d = self.origin[i]
if not common.is_number(d):
self.error('origin[%s] must be number but got %s'%(i,type(d)))
return 1
return 0
def _check_spacing(self):
for i in range(3):
d = self.spacing[i]
if not common.is_number(d):
self.error('spacing[%s] must be number but got %s'%(i,type(d)))
return 1
if d<=0:
self.error('spacing[%s] must be positive number but got %s'%(i,d))
return 1
return 0
def _check_int_seq(self,obj,mx_int):
if common.is_sequence(obj):
for o in obj:
if self._check_int_seq(o,mx_int):
return 1
elif not common.is_int(obj) or obj>=mx_int:
return 1
return 0
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