OCCT3D

Open CASCADE Technology 8.0.1

Documentation for working with OCCT

Use the guides to understand OCCT concepts and workflows. Use the API reference when you already know the package, class, or method you need.

Open the guides Open the API reference
FORMAT / STRUCTUREEXCHANGE PIPELINESTEPXCAFglTFDE01Choose a workflow02Follow the relevantguide03Open the exact APIentry
  1. 01Choose a workflow
  2. 02Follow the relevant guide
  3. 03Open the exact API entry

Two ways in

Begin with the task, then move to the API

The overview explains architecture, tools, and end-to-end workflows. Every guide can link directly to the corresponding C++ types in the reference manual, without leaving this website.

Concepts and workflows

Overview and user guides

Start here when evaluating OCCT, setting up a build, or learning a modeling, visualization, exchange, or application-framework workflow.

Browse the guides

C++ packages and types

API reference

Find modules, packages, classes, inheritance relationships, methods, parameters, and source-level documentation for OCCT 8.0.1.

Browse the API reference

Common starting points

Go directly to the relevant material

Documentation search is available inside both generated collections.

01Getting startedInstallation, environment setup, build options, and first steps with OCCT.02User guidesModeling, visualization, data exchange, OCAF, shape healing, and mesh workflows.03Upgrade guidesBehavior and API changes to review when moving an application to a newer release.04Contribution guideCoding rules, tests, documentation, and the public contribution workflow.

Versioned material

Documentation follows the published OCCT build

These pages describe OCCT 8.0.1. Check the version shown in the documentation header before applying API details to another release.