Using VTK, PyVista, and Trame

This example demonstrates how to use VTK, PyVista, and Trame together to show how the three libraries complement each other.

import pyvista as pv
from pyvista.trame.ui import plotter_ui
from trame.app import get_server
from trame.ui.vuetify3 import SinglePageLayout
from trame.widgets import vuetify3
from vtkmodules.vtkFiltersSources import vtkConeSource

pv.OFF_SCREEN = True

server = get_server()
state, ctrl = server.state, server.controller

source = vtkConeSource()

pl = pv.Plotter()
pl.add_mesh(source, color="seagreen")


@state.change("resolution")
def update_contour(resolution, **kwargs) -> None:
    source.SetResolution(int(resolution))
    ctrl.view_update()


with SinglePageLayout(server) as layout:
    with layout.toolbar:
        vuetify3.VSpacer()
        vuetify3.VSlider(
            v_model=("resolution", 15),
            min=5,
            max=30,
            hide_details=True,
            density="compact",
            style="max-width: 300px",
            change=ctrl.view_update,
        )
        vuetify3.VProgressLinear(
            indeterminate=True,
            absolute=True,
            bottom=True,
            active=("trame__busy",),
        )

    with (
        layout.content,
        vuetify3.VContainer(
            fluid=True,
            classes="pa-0 fill-height",
        ),
    ):
        # Use PyVista UI template for Plotters
        view = plotter_ui(pl)
        ctrl.view_update = view.update

# Show UI
await layout.ready
layout