BUG: Accessing SpectralAnalysisMembersInternalForces for different Envelopes not possible

[MaximilianFranz]

Describe the bug
We're trying to access the results of the spectral analysis for different Envelopes (in German: "Umhüllende Y" and "Umhüllende X") via the webservices API.
However, we only received the results of the one envelope that's currently selected in the UI and cannot change the envelope programmatically.

To Reproduce
We're using this code:

      member_inner_forces = ResultTables.SpectralAnalysisMembersInternalForces(
          loading_type=CaseObjectType.E_OBJECT_TYPE_LOAD_CASE,
          loading_no=loading_id,
          object_no=beam_idx,
          model=model,
      )

where loading_id is the load_case number of "Antwortspektrenverfahren" and beam_idx is the id of a result-beam (type=RESULT_BEAM_TYPE).

We've experimented with using using CaseObjectType.E_OBJECT_TYPE_RESULT_COMBINATION but that didn't yield any results.

Expected behavior
Some way to change the envelope type.

Screenshots

This is the envelope we want to switch:

to fetch the results from this table:

[OndraMichal]

Hi @MaximilianFranz,
none of these functions yield intended table?
get_results_for_spectral_analysis_building_model_member_forces_in_shear_walls()
get_results_for_spectral_analysis_building_stories_centres_mass_rigidity()
get_results_for_spectral_analysis_building_stories_forces_in_deep_beams()
get_results_for_spectral_analysis_building_stories_forces_in_shear_walls()
get_results_for_spectral_analysis_building_stories_interstory_drifts()
get_results_for_spectral_analysis_building_stories_sensitivity_coefficients()
get_results_for_spectral_analysis_building_stories_story_actions()
get_results_for_spectral_analysis_line_hinges_deformations()
get_results_for_spectral_analysis_line_hinges_forces()
get_results_for_spectral_analysis_line_releases_deformations()
get_results_for_spectral_analysis_line_releases_forces()
get_results_for_spectral_analysis_lines_slab_wall_connections()
get_results_for_spectral_analysis_lines_support_forces()
get_results_for_spectral_analysis_members_contact_forces()
get_results_for_spectral_analysis_members_global_deformations()
get_results_for_spectral_analysis_members_hinge_deformations()
get_results_for_spectral_analysis_members_hinge_forces()
get_results_for_spectral_analysis_members_internal_forces()
get_results_for_spectral_analysis_members_internal_forces_by_member_set()
get_results_for_spectral_analysis_members_internal_forces_by_section()
get_results_for_spectral_analysis_members_local_deformations()
get_results_for_spectral_analysis_members_local_plastic_deformation_ratios()
get_results_for_spectral_analysis_members_strains()
get_results_for_spectral_analysis_nodes_deformations()
get_results_for_spectral_analysis_nodes_pseudo_accelerations()
get_results_for_spectral_analysis_nodes_pseudo_velocities()
get_results_for_spectral_analysis_nodes_support_forces()
get_results_for_spectral_analysis_solids_basic_stresses()
get_results_for_spectral_analysis_solids_basic_total_strains()
get_results_for_spectral_analysis_solids_deformations()
get_results_for_spectral_analysis_solids_equivalent_stresses()
get_results_for_spectral_analysis_solids_equivalent_total_strains()
get_results_for_spectral_analysis_solids_gas_quantities()
get_results_for_spectral_analysis_solids_principal_stresses()
get_results_for_spectral_analysis_solids_principal_total_strains()
get_results_for_spectral_analysis_summary()
get_results_for_spectral_analysis_surfaces_basic_internal_forces()
get_results_for_spectral_analysis_surfaces_basic_stresses()
get_results_for_spectral_analysis_surfaces_basic_total_strains()
get_results_for_spectral_analysis_surfaces_contact_stresses()
get_results_for_spectral_analysis_surfaces_design_internal_forces()
get_results_for_spectral_analysis_surfaces_elastic_stress_components()
get_results_for_spectral_analysis_surfaces_equivalent_stresses_bach()
get_results_for_spectral_analysis_surfaces_equivalent_stresses_mises()
get_results_for_spectral_analysis_surfaces_equivalent_stresses_rankine()
get_results_for_spectral_analysis_surfaces_equivalent_stresses_tresca()
get_results_for_spectral_analysis_surfaces_equivalent_total_strains_bach()
get_results_for_spectral_analysis_surfaces_equivalent_total_strains_mises()
get_results_for_spectral_analysis_surfaces_equivalent_total_strains_rankine()
get_results_for_spectral_analysis_surfaces_equivalent_total_strains_tresca()
get_results_for_spectral_analysis_surfaces_global_deformations()
get_results_for_spectral_analysis_surfaces_local_deformations()
get_results_for_spectral_analysis_surfaces_maximum_total_strains()
get_results_for_spectral_analysis_surfaces_principal_internal_forces()
get_results_for_spectral_analysis_surfaces_principal_stresses()
get_results_for_spectral_analysis_surfaces_principal_total_strains()

[MaximilianFranz]

I can see the table and get the correct results, but I am not able to switch programmatically between Envelope Y / X (see the first screenshot).

What we are doing now is to run the script once with Umhüllende X set then switch in the UI to Umhüllende Y and run the script again. Then we have both results. But I would like to do that switch programmitcally.

[OndraMichal]

Ok, so this is something we don't support yet. Will have to create ToDo for it.