Coordinate conversion from IIIF to Blender systems #27
Description
Opening this with the intention of avoiding duplication of efforts.
At least some of our use cases, those aimed at using Blender UI to generate manifests, accept the coordinate conversion that is performed when a glTF/glb model is imported into Blender. This can be thought of as a coordinate transform from "IIIF coordinates" to "Blender coordinates". The current (in main branch) of the plugin sets up a stub class and functions in file coordinates.py.
I have created a fork project and branch to implement and test these conversions. The branch is at vincentmarchetti/iiif_3d_blender_plugin : coordinate-system , see the documentation in coordinates.py for geometric details.
A quick way to get a first evaluation is to see that applying the coordinate transform gives better result reading the positioned_camera_lookat_point.json manifest and placing the camera defined in annotation.