How to rotate the iTwin model using ModelDisplayTransform and ModelDisplayTransformProvider

[ilyasbelfar]

Hello people,
I read in the iTwin.js documentation that the ModelDisplayTransform can apply transformations at model's display time to the model loaded inside the iTwin viewer viewport (screenshots attached). How can ModelDisplayTransform and ModelDisplayTransformProvider be used to rotate the iTwin model along the x, y, and z axes at the model's display time? How should this be implemented?

Any guidance or examples would be greatly appreciated!

Here is the links to the iTwin.js docs:

• https://www.itwinjs.org/reference/core-frontend/views/modeldisplaytransform/
• https://itwinjs.org/reference/core-frontend/views/viewstate/modeldisplaytransformprovider/

[pmconne]

Take a look at this simple tool that applies a transform to the set of models displayed in a viewport using ModelDisplayTransformProvider. You should be able to extract the bits you need.