Geometry Output

To inspect the domain, a lightweight visualization method is provided via the show() member function. This function utilizes VTK to render the current state of the simulation domain in an interactive window. It offers a quick and convenient way to visualize the geometry without the need for exporting files or using external visualization tools.

For advanced interactive rendering, the VTKRenderWindow class exposes camera, render-mode, screenshot, and multi-domain controls.

ViennaPS provides various methods for outputting the processed domain. The data is typically saved in the VTK file format, with surfaces, hulls, disks, and Level-Set grids stored in .vtp files and volume visualizations stored in .vtu files. For visualization, we recommend using ParaView, a powerful open-source visualization tool. Below, you’ll find further details on the available geometry outputs.

Raw Level-Sets can also be written to .lvst files for later reuse with ViennaLS readers. Complete ViennaPS domains can be serialized with Writer and restored with Reader using the .vpsd domain format.

Common domain output functions include:

  • saveSurfaceMesh / getSurfaceMesh for triangulated surfaces and interfaces.
  • saveHullMesh / getHullMesh for hull meshes.
  • saveDiskMesh / getDiskMesh for disk meshes containing material IDs.
  • saveVolumeMesh for volume visualization meshes.
  • saveLevelSetMesh / getLevelSetMesh for VTK Level-Set grid meshes.
  • saveLevelSets for raw .lvst Level-Set files.
  • Writer / Reader for full-domain .vpsd serialization.

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