Error in dashboard 3D model view when getting units

Description

There are issues getting the units for promoted names of variables when they refer to multiple inputs. This occurs in the dashboard Aircraft 3d Model tab creation.

Example

Run this script, run_simple_weight_with_driver_history.py, to generate the files

from copy import deepcopy
import aviary.api as av

from aviary.examples.external_subsystems.simple_weight.simple_weight_builder import WingWeightBuilder

phase_info = deepcopy(av.default_height_energy_phase_info)
# Here we just add the simple weight system to only the pre-mission
phase_info['pre_mission']['external_subsystems'] = [WingWeightBuilder()]

prob = av.AviaryProblem()

# Load aircraft and options data from user
# Allow for user overrides here
prob.load_inputs('models/test_aircraft/aircraft_for_bench_FwFm.csv', phase_info)

# Preprocess inputs
prob.check_and_preprocess_inputs()

prob.add_pre_mission_systems()

prob.add_phases()

prob.add_post_mission_systems()

# Link phases and variables
prob.link_phases()

prob.add_driver("SLSQP")

prob.add_design_variables()

prob.add_objective()

prob.setup()

prob.set_initial_guesses()

prob.run_aviary_problem(suppress_solver_print=True, optimization_history_filename='driver_history.db')

Then run

aviary dashboard run_simple_weight_with_driver_history

In the Results -> Aircraft 3d model tab, there is the error

Unable to create aircraft 3D model display due to error: Can't get units for the promoted name 'aircraft:fuselage:length' because it refers to multiple inputs: ['pre_mission.core_subsystems.core_geometry.characteristic_lengths.aircraft:fuselage:length', 'pre_mission.core_subsystems.core_geometry.fuselage.aircraft:fuselage:length', 'pre_mission.core_subsystems.core_geometry.fuselage_prelim.aircraft:fuselage:length', 'pre_mission.core_subsystems.core_mass.electrical.aircraft:fuselage:length', 'pre_mission.core_subsystems.core_mass.fuselage.aircraft:fuselage:length', 'pre_mission.core_subsystems.core_mass.landing_group.main_landing_gear_length.aircraft:fuselage:length']. Access the units using an absolute path name.

Aviary Version

0.9.4-dev

Relevant environment information

No response

Reproduce the failure with run_simple_weight_with_driver_history.py, then run aviary dashboard run_simple_weight_with_driver_history. Start at the Results → Aircraft 3d model dashboard path and trace how units are retrieved for promoted names. Done means the Aircraft 3D model tab renders without the multiple-input units error for this example.