def _get_lookup_table(self,name):
if name is None:
name = 'default'
log.info('Using default lookup_table=%s'%(repr(name)))
return name
if common.is_string(name):
name = name.strip().replace(' ','_')
if name:
return name
raise ValueError('lookup_table=%s must be nonempty string'%(repr(name)))
def _get_name(self,name):
if name is None:
name = self._get_default_name()
log.info('Using default name=%s'%(repr(name)))
return name
if common.is_string(name):
name = name.strip().replace(' ','_')
if name:
return name
raise ValueError('name=%s must be non-empty string'%(repr(name)))
def __init__(self, *args, **kws):
assert args, 'expected at least one argument'
if type(args[0]) is str:
if 'only_structure' in kws and kws['only_structure']:
self.fromfile(args[0], 1)
else:
self.fromfile(args[0])
return
else:
structure = args[0]
args = list(args)[1:]
if not is_dataset(structure):
raise TypeError(
'argument structure must be StructuredPoints|StructuredGrid|UnstructuredGrid|RectilinearGrid|PolyData but got %s'
% (type(structure)))
self.structure = structure
for a in args:
if common.is_string(a):
if len(a) > 255:
log.warning('striping header string to a length =255')
self.header = a[:255]
elif is_pointdata(a):
self.point_data = a
elif is_celldata(a):
self.cell_data = a
else:
log.warning('unexpexted argument %s', type(a))
if self.header is None:
self.header = 'Really cool data'
log.info('Using default header=%s' % (repr(self.header)))
if self.point_data is None and self.cell_data is None:
log.info('No point/cell data defined')
if self.point_data is not None:
s = self.structure.get_size()
s1 = self.point_data.get_size()
if s1 != s:
raise ValueError(
'DataSet (size=%s) and PointData (size=%s) have different sizes'
% (s, s1))
else:
self.point_data = PointData()
if self.cell_data is not None:
s = self.structure.get_cell_size()
s1 = self.cell_data.get_size()
if s1 != s:
raise ValueError(
'DataSet (cell_size=%s) and CellData (size=%s) have different sizes'
% (s, s1))
else:
self.cell_data = CellData()
def tofile(self, filename, format = 'ascii'):
"""Save VTK data to file.
"""
if not common.is_string(filename):
raise TypeError('argument filename must be string but got %s'%(type(filename)))
if format not in ['ascii','binary']:
raise TypeError('argument format must be ascii | binary')
filename = filename.strip()
if not filename:
raise ValueError('filename must be non-empty string')
if filename[-4:]!='.vtk':
filename += '.vtk'
f = open(filename,'wb')
f.write(self.to_string(format))
f.close()
def tofile(self, filename, format='ascii'):
"""Save VTK data to file.
"""
if not common.is_string(filename):
raise TypeError('argument filename must be string but got %s' %
(type(filename)))
if format not in ['ascii', 'binary']:
raise TypeError('argument format must be ascii | binary')
filename = filename.strip()
if not filename:
raise ValueError('filename must be non-empty string')
if filename[-4:] != '.vtk':
filename += '.vtk'
f = open(filename, 'wb')
f.write(self.to_string(format))
f.close()
def __init__(self,*args,**kws):
assert args,'expected at least one argument'
if type(args[0]) is str:
if 'only_structure' in kws and kws['only_structure']:
self.fromfile(args[0],1)
else:
self.fromfile(args[0])
return
else:
structure = args[0]
args = list(args)[1:]
if not is_dataset(structure):
raise TypeError('argument structure must be StructuredPoints|StructuredGrid|UnstructuredGrid|RectilinearGrid|PolyData but got %s'%(type(structure)))
self.structure = structure
for a in args:
if common.is_string(a):
if len(a)>255:
log.warning('striping header string to a length =255')
self.header = a[:255]
elif is_pointdata(a):
self.point_data = a
elif is_celldata(a):
self.cell_data = a
else:
log.warning('unexpexted argument %s', type(a))
if self.header is None:
self.header = 'Really cool data'
log.info('Using default header=%s'%(repr(self.header)))
if self.point_data is None and self.cell_data is None:
log.info('No point/cell data defined')
if self.point_data is not None:
s = self.structure.get_size()
s1 = self.point_data.get_size()
if s1 != s:
raise ValueError('DataSet (size=%s) and PointData (size=%s) have different sizes'%(s,s1))
else:
self.point_data = PointData()
if self.cell_data is not None:
s = self.structure.get_cell_size()
s1 = self.cell_data.get_size()
if s1 != s:
raise ValueError('DataSet (cell_size=%s) and CellData (size=%s) have different sizes'%(s,s1))
else:
self.cell_data = CellData()
