paraview.simple.VTKHDFWriter(*input, **params)

The VTKHDF Writer writes files in VTKHDF format, using extension .vtkhdf, a format derived from HDF5. Currently, it supports writing Unstructured Grid and PolyData datasets, possibly transient, as well as composite types Partitioned Dataset Collection and Multiblock Dataset, without transient support.

Data Descriptors


Chunk Size controls the size of HDF5 datasets chunks. Chunk size can impact multi-process reading performance and compression efficiency.


Compression level controls how much user wants to compress the written data. Using a higher level of compression will decrease file size but significantly slow down read and write operations.


The name of the file to be written.


The input filter/source whose output dataset is written to the file.


Write composite leaf blocks in different files. Only applies to vtkPartitionedDataSetCollection and vtkMultiBlockDataSet inputs.


Write each partition in a different file. Only applies to vtkPartitionedDataSet and composite inputs.


Write each time step data in a different file, referrenced by the main file to form a time-varying dataset.


When WriteAllTimeSteps is turned ON, the writer writes every available timestep to file. Otherwise, only the current timestep is written.

Data Descriptors inherited from Proxy


dictionary for instance variables (if defined)


list of weak references to the object (if defined)


Initialize = aInitialize(self, connection=None, update=True)

Methods inherited from SourceProxy


Called when the filename of a source proxy is changed.


Returns the associated cell data information.

GetDataInformation(self, idx=None)

This method returns a DataInformation wrapper around a vtkPVDataInformation


Returns the associated cell data information.


Returns the associated point data information.

UpdatePipeline(self, time=None)

This method updates the server-side VTK pipeline and the associated data information. Make sure to update a source to validate the output meta-data.


This method updates the meta-data of the server-side VTK pipeline and the associated information properties

__getitem__(self, idx)

Given a slice, int or string, returns the corresponding output port

Methods inherited from Proxy

GetProperty(self, name)

Given a property name, returns the property object.

GetPropertyValue(self, name)

Returns a scalar for properties with 1 elements, the property itself for vectors.

InitializeFromProxy(self, aProxy, update=True)

Constructor. Assigns proxy to self.SMProxy, updates the server object as well as register the proxy in _pyproxies dictionary.


Returns a list of all property names on this proxy.

SetPropertyWithName(self, pname, arg)

Generic method for setting the value of a property.


Destructor. Cleans up all observers as well as remove the proxy from the _pyproxies dictionary

__eq__(self, other)

Returns true if the underlying SMProxies are the same.

__getattr__(self, name)

With the exception of a few overloaded methods, returns the SMProxy method


Return hash(self).

__init__(self, **args)

Default constructor. It can be used to initialize properties by passing keyword arguments where the key is the name of the property. In addition registrationGroup and registrationName (optional) can be specified (as keyword arguments) to automatically register the proxy with the proxy manager.


Creates an iterator for the properties.

__ne__(self, other)

Returns false if the underlying SMProxies are the same.

__setattr__(self, name, value)

Implement setattr(self, name, value).

add_attribute(self, name, value)

For the full list of servermanager proxies, please refer to Available readers, sources, writers, filters and animation cues