Feature request: expose plate stress/strain field (result mesh) via the API for 3D visualization

[linkwisesrl-coder]

Summary

Would it be possible to expose the per-node (or per-element) stress and plastic
strain field of plates through the API, i.e. the result mesh that IDEA StatiCa
already uses internally to draw the stress contour plots in the UI and in the report?

Context / what is already available

Using the Connection REST API (Python client ideastatica_connection_api), I can
already retrieve:

• Per-component check results via get_raw_json_results (equivalent to
  GetCheckResultsJSON): plates[id].maxStress, plates[id].maxStrain,
  boltsAnchor[...] forces, welds, etc. — see discussion Expansion of result access through IDEA Statica API #243.
• The 3D geometry via presentation.get_data_scene3_d → DrawData { vertices, normals, groups }, where each group is a set of triangles colored by part
  (steel / concrete / bolts), not by result.

What is missing

There is no way to obtain the stress/strain field mapped to the mesh:

• plates[id].form and plates[id].items are empty / null.
• platesDeformation exposes only maxDeformation (+ node ids), no stress array.
• get_data_scene3_d only carries geometry + part colors, no nodal result values.

So only the single maximum value per plate is available, not the field needed to
render a stress contour.

Proposed solution (any of these would help)

1. A result-colored scene, e.g. an option/parameter on get_data_scene3_d to
   return the mesh colored by equivalent stress σ_Ed / plastic strain ε_Pl
   (the same data the report renders).
2. Or a nodal/element results array per plate in the results JSON, aligned with a
   mesh (node coordinates + connectivity + value per node), so it can be rendered
   externally (e.g. pyvista).

Use case

Programmatic / automated stress visualization and custom 3D rendering (parametric
studies, batch reporting, integration into our own tools) without opening the IDEA
StatiCa UI.

Environment

• IDEA StatiCa 25.1, Connection REST API, Python client ideastatica_connection_api 25.1.x.
• Related: discussion Expansion of result access through IDEA Statica API #243 (detailed bolt/anchor forces).

Thanks!