paraview.simple.Tessellate(*input, **params)
The Tessellate filter

tessellates cells with nonlinear geometry and/or scalar fields into a simplicial complex with linearly interpolated field values that more closely approximate the original field. This is useful for datasets containing quadratic cells.

Data Descriptors


This property controls the maximum chord error allowed at any edge midpoint in the output tessellation. The chord error is measured as the distance between the midpoint of any output edge and the original nonlinear geometry.


This property controls the maximum field error allowed at any edge midpoint in the output tessellation. The field error is measured as the difference between a field value at the midpoint of an output edge and the value of the corresponding field in the original nonlinear geometry.


This property specifies the input to the Tessellate filter.


This property specifies the maximum number of times an edge may be subdivided. Increasing this number allows further refinement but can drastically increase the computational and storage requirements, especially when the value of the OutputDimension property is 3.


If the value of this property is set to 1, coincident vertices will be merged after tessellation has occurred. Only geometry is considered during the merge and the first vertex encountered is the one whose point attributes will be used. Any discontinuities in point fields will be lost. On the other hand, many operations, such as streamline generation, require coincident vertices to be merged. Toggle whether to merge coincident vertices.


The value of this property sets the maximum dimensionality of the output tessellation. When the value of this property is 3, 3D cells produce tetrahedra, 2D cells produce triangles, and 1D cells produce line segments. When the value is 2, 3D cells will have their boundaries tessellated with triangles. When the value is 1, all cells except points produce line segments.


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