====== VTK ======

<WRAP round box important>
**Important!!**

**VTK** is normally used by other applications within one of our [[advanced:software:x11|X11 Linux Desktop]] sessions. Do not attempt to load/run VTK applications over SSH+X11 as this is unsupported and against the use policies of the login nodes.
</WRAP>

**VTK** is a software module available on **Comet**.

===== VTK overview =====

To access **VTK** on Comet, run ''module load VTK''. This will load the //default// version of **VTK**.

An overview of the module information is shown below (''module -r spider ^VTK$''):

<code lang=text>
  VTK: VTK/9.3.0-foss-2023a
    Description:
      The Visualization Toolkit (VTK) is an open-source, freely available software system for 3D computer graphics, image processing and
      visualization. VTK consists of a C++ class library and several interpreted interface layers including Tcl/Tk, Java, and Python. VTK
      supports a wide variety of visualization algorithms including: scalar, vector, tensor, texture, and volumetric methods; and
      advanced modeling techniques such as: implicit modeling, polygon reduction, mesh smoothing, cutting, contouring, and Delaunay
      triangulation.

    This module can be loaded directly: module load VTK/9.3.0-foss-2023a

    Help:
      
      Description
      ===========
      The Visualization Toolkit (VTK) is an open-source, freely available software system for
       3D computer graphics, image processing and visualization. VTK consists of a C++ class library and several
       interpreted interface layers including Tcl/Tk, Java, and Python. VTK supports a wide variety of visualization
       algorithms including: scalar, vector, tensor, texture, and volumetric methods; and advanced modeling techniques
       such as: implicit modeling, polygon reduction, mesh smoothing, cutting, contouring, and Delaunay triangulation.
      
      More information
      ================
       - Homepage: https://www.vtk.org
</code>

If there are multiple versions of **VTK** listed, then you can load a //specific// version as follows:
<code lang=bash>
$ module load VTK/version_string
</code>

You can find the most //up to date information// whilst logged on to Comet by running ''module -r spider ^VTK$''.

----

===== VTK Help =====

The module **VTK** has the following embedded help text (''module help VTK''):

<code lang=text>Description
===========
The Visualization Toolkit (VTK) is an open-source, freely available software system for
 3D computer graphics, image processing and visualization. VTK consists of a C++ class library and several
 interpreted interface layers including Tcl/Tk, Java, and Python. VTK supports a wide variety of visualization
 algorithms including: scalar, vector, tensor, texture, and volumetric methods; and advanced modeling techniques
 such as: implicit modeling, polygon reduction, mesh smoothing, cutting, contouring, and Delaunay triangulation.

More information
================
 - Homepage: https://www.vtk.org

</code>

----

===== VTK Dependencies =====

The //default// version of the module **VTK** has the following dependencies:

   * foss/2023a
   * Python/3.11.3-GCCcore-12.3.0
   * SciPy-bundle/2023.07-gfbf-2023a
   * XZ/5.4.2-GCCcore-12.3.0
   * libGLU/9.0.3-GCCcore-12.3.0
   * X11/20230603-GCCcore-12.3.0
   * Qt5/5.15.10-GCCcore-12.3.0

----

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