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Undocumented change in interface for setting vertex tangent bases?

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
35/100
Issue type
Documentation
Clarity
Clearly specified
Activity status
Stale
Tech stack
cpp
Domain
documentation

Research direction

Start with the tangent vector documentation at the linked surface-mesh page and compare its examples with the current codebase. Check the status of setVertexTangentBasisX, addVertexIntrinsicVectorQuantity, and addVertexTangentVectorQuantity, then update the documentation and examples so they use the current interface consistently.

Written by the indexing model from the issue text.

Description

The current documentation for tangent vector fields says they should be specified using the methods setVertexTangentBasisX and addVertexIntrinsicVectorQuantity. See for instance the example on this page: https://polyscope.run/structures/surface_mesh/vector_quantities/#tangent-vectors

However, these methods seem to longer exist. Another method, addVertexTangentVectorQuantity, appears in the codebase but is not documented or used in the examples. (Note that gc-polyscope-project-template also uses the seemingly defunct methods.)

Thanks!

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