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io4dolfinx - A framework for reading and writing data to various mesh formats

How to guides

Installation
Quick Start Guide
Adding a custom backend
Migration Guide: Transitions to io4dolfinx
Testing Strategy
Reading Legacy DOLFIN Data

Introduction to IPyParallel

Introduction to IPython parallel

Writing and reading mesh data

Writing a mesh checkpoint
Storing mesh partition
Time-dependent mesh checkpoints
Writing MeshTags data to a checkpoint file

Writing and reading functions

Writing a function checkpoint
Snapshot checkpoint (non-persistent)
Checkpoint on input mesh

Python API

API Reference
Backend API
ADIOS2-backend
H5PY-backend
PyVista-backend
XDMF-backend
VTKHDF-backend

Contributing

Contributor guidelines

Repository
Open issue

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By Jørgen S. Dokken

© Copyright 2023.

Last updated on Feb 26, 2026.