sorokinvld/stpyvista

🧊 Show pyvista 3D visualizations in streamlit

🧊 stpyvista

Show PyVista 3D visualizations in Streamlit

This is a simple component that takes a PyVista plotter object and shows it on Streamlit as an interactive element (as in it can be zoomed in/out, moved and rotated, but the visualization state is not returned). It uses Panel to render PyVista plotter objects within an iframe.

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Installation

pip install stpyvista

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Check app demo with examples at https://stpyvista.streamlit.app

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Basic example

import streamlit as st
import pyvista as pv
from stpyvista import stpyvista

## Initialize a plotter object
plotter = pv.Plotter(window_size=[400,400])

## Create a mesh with a cube 
mesh = pv.Cube(center=(0,0,0))

## Add some scalar field associated to the mesh
mesh['myscalar'] = mesh.points[:, 2]*mesh.points[:, 0]

## Add mesh to the plotter
plotter.add_mesh(mesh, scalars='myscalar', cmap='bwr', line_width=1)

## Final touches
plotter.view_isometric()
plotter.add_scalar_bar()
plotter.background_color = 'white'

## Pass a key to avoid re-rendering at each time something changes in the page
stpyvista(plotter, key="pv_cube")

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Also check:

• The PyVista project at https://www.pyvista.org/
• Working with Panel and Pyvista https://panel.holoviz.org
• @blackary's blog post on how to build a custom component
• Other stuff from me on https://edsaac.github.io