pyvista-wasm

pyvista-wasm#

JupyterLite Stlite marimo

PyVista-like API for VTK.wasm — bring intuitive 3D visualization to the browser using WebAssembly.

Try it with JupyterLite

Try it with Stlite

Try it with marimo

jupyterlite-preview

stlite-preview

marimo-preview

Table of Contents#

Install#

PyPI

pip install pyvista-wasm

For Pyodide/stlite:

import micropip

await micropip.install("pyvista-wasm")

Usage#

import pyvista_wasm as pv

plotter = pv.Plotter()
plotter.add_mesh(pv.Sphere(), color="red")
plotter.show()

Differences from pyvista-js#

This project replaces the vtk.js rendering backend used in pyvista-js with VTK.wasm (@kitware/vtk-wasm npm package).

Key differences:

  • Rendering backend: VTK.wasm (WebAssembly port of VTK C++) instead of vtk.js (pure JavaScript reimplementation)

  • API style: VTK.wasm uses vtk.vtkRenderer() factory functions on a namespace object, vs vtk.js’s vtk.Rendering.Core.vtkRenderer.newInstance() hierarchy

  • Initialization: VTK.wasm requires async initialization via vtkWASM.createNamespace() to load the WASM binary

  • Feature parity: VTK.wasm provides access to the full VTK C++ API, enabling features not available in vtk.js

Contributing#

Contributions are welcome! Please open an issue or pull request on GitHub.

License#

Apache License 2.0 © Tetsuo Koyama

Tutorials

Topic driven themed lessons.

tutorials/index
How-To Guides

Focused guides for common tasks.

How-To Guides
Explanation

Deeper understanding awaits.

Explanation
Reference

No fuss facts.

API Reference

Choose your approach to learning and pyvista-wasm knowledge discovery (Diátaxis).