Model Viewer Example

The cross-vault viewer demonstrates the reusable viewer infrastructure with a nontrivial model:

python examples/contact_detection/cross_vault_model_viewer.py

It loads the original polygonal block meshes, computes contacts, and provides navigation by hierarchy, collection, element type, and interaction. Contacts are individual selectable scene objects and can be hidden independently.

Install the viewer extra first:

python -m pip install -e ".[viz]"

Use --no-viewer to build and verify the model without launching the GUI.