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Macro components for ParaView

Project description

ParaView Trame Components

This project gather helper classes that can be used with ParaView to create quickly and simply web solution for interacting with your data.

Usage example

The ./examples/ directory gather simple Python scripts using ParaView and exposing them as standalone trame applications.

Virtual Environment setup

Since ParaView does not come with trame, you need to create a virtual environment that brings all the missing dependency for paraview to use.

# Create and activate venv
python3.10 -m venv .venv
source .venv/bin/activate

# Install published package
pip install paraview-trame-components

# Let ParaView know about the location of that venv
export PV_VENV=$PWD/.venv

Running examples

# Adjust path to point to your ParaView executable
export PVPYTHON=/Applications/ParaView-5.12.0.app/Contents/bin/pvpython

# Run the scripts
$PVPYTHON --force-offscreen-rendering ./examples/cone.py
$PVPYTHON --force-offscreen-rendering ./examples/cone-width-slider.py
$PVPYTHON --force-offscreen-rendering ./examples/wavelet-contour-state.py
$PVPYTHON --force-offscreen-rendering ./examples/pipeline.py

Scripts structure

Each script add import paraview.web.venv at the top to enable your virtual environment via the PV_VENV environment variable.

Then we use the ptc (ParaView Trame Components) package to quickly create a trame application to view the data.

The wavelet-contour-state.py script was created by ParaView when saving its state as a Python file. Then we added few lines at the end to create an interactive web viewer.

Check code

# one time
pip install ".[dev]"
pre-commit install

# check but automatic on commit
pre-commit run --all-files

ParaView code example

import paraview.web.venv
from ptc import Viewer
from paraview import simple

cone = simple.Cone()
simple.Show()
simple.Render()

# Make it a web app
web_app = Viewer()
web_app.start()

And if you want to add some UI

import paraview.web.venv
from paraview import simple

from ptc import Viewer
from trame.widgets.vuetify3 import VSlider

cone = simple.Cone()
simple.Show()
simple.Render()

# Make it a web app
web_app = Viewer()

with web_app.side_top:
    VSlider(
        v_model=("resolution", 6),
        min=3, max=60, step=1,
    )

@web_app.state.change("resolution")
def on_resolution_change(resolution, **kwargs):
    cone.Resolution = resolution
    web_app.update()

web_app.start()

Example in image

Code Web App
Write some python code And get a web app

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