def ReadFile(self, filename, name=None, forsequence=False):
'''
Only method to get a sequence of the manager from its index.
returns NULL pointer if out of range.
@param filename: str
@param name: str
@param forsequence: bool
@rtype: vtkMetaDataSet
'''
if os.path.isdir(filename):
return self.ScanDirectoryForSequence(filename)
type=vtkPythonMetaDataSet.VTK_META_UNKNOWN
if type==vtkPythonMetaDataSet.VTK_META_UNKNOWN:
metadataset=vtkPythonMetaVolumeMesh()
if metadataset.CanReadFile(filename):
type=vtkPythonMetaDataSet.VTK_META_VOLUME_MESH
if type==vtkPythonMetaDataSet.VTK_META_UNKNOWN:
metadataset=vtkPythonMetaSurfaceMesh()
if metadataset.CanReadFile(filename):
type=vtkPythonMetaDataSet.VTK_META_SURFACE_MESH
if type==vtkPythonMetaDataSet.VTK_META_UNKNOWN:
metadataset=vtkPythonMetaImageData()
if metadataset.CanReadFile(filename):
type=vtkPythonMetaDataSet.VTK_META_IMAGE_DATA
if type==vtkPythonMetaDataSet.VTK_META_UNKNOWN:
metadataset=vtkPythonMetaDataSetSequence()
if metadataset.CanReadFile(filename):
type=vtkPythonMetaDataSet.VTK_META_IMAGE_DATA
if type==vtkPythonMetaDataSet.VTK_META_UNKNOWN:
print "unknown file format : %s"%(filename)
raise IOError, "Unrecognized File Type!"
try:
metadataset.Read(filename)
if name==None:
metadataset.setName(os.path.splitext(os.path.split(filename)[1])[0])
else:
metadataset.setName(name)
self.AddMetaDataSet(metadataset)
# del metadataset
return metadataset
except:
# del metadataset
raise IOError
return None
def ScanDirectoryForSequence(self, dirname, duration):
'''
Call this method to scan an entire directory where files belong to a sequence.
This will add every dataset that is readable in a sequence, set it to the given duration
and add the sequence to the manager.
@param dirname: str
@param duration: double
@rtype: vtkMetaDataSetSequence
'''
Sequence = vtkPythonMetaDataSetSequence()
try:
Sequence.SetSequenceDuration(duration)
Sequence.Read(dirname)
Sequence.setName(os.path.split(dirname)[1])
self.AddMetaDataSet(Sequence)
# del Sequence
except:
# del Sequence
raise IOError
return Sequence
