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

Write Exodus files using IOSS library.

Data Descriptors


If input dataset has displacements pre-applied, setting the displacement magnitude to non-zero ensures that the point coordinates in the dataset are correctly transformed using the displacement field array, if present.


The name of the file to be written.


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


A debugging option, set this to non-zero positive number to save at most the specified number of timesteps in a single file before starting a new one. The writer may start new files (aka restarts) automatically if it determines that the mesh has changed. Defaults to 0 i.e. unlimited timesteps per file.


Exodus wants global ids to start with 1, while VTK generally produces global ids starting with 0. Set this to true (default false), if the global ids are generated by VTK and hence start with 0. When writing to the output file, they will be offset by 1 to ensure the ids are valid exodus ids.


If input is untransformed IOSS dataset, then the writer can preserve entity group classifications, such as element blocks, side sets etc. The same is not true if the input has been transformed e.g. through a clip filter. Thus flag is used to indicate whether the input has valid element classifications.

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