PDS4 Viewer: Display Settings Warning

[jennifergward]

PDS4 Viewer gives a warning, "No valid/supported Display Settings found. Displayed image may not be correct," if multiple bands are listed as local_identifier_references in one Display_Settings class rather than in separate classes. Please update the PDS4 Viewer to deal with the recent change to the standards that allows multiple references.

e.g.
<Discipline_Area>
disp:Display_Settings
<Local_Internal_Reference>
<local_identifier_reference>INA_at_areoid_image</local_identifier_reference>
<local_identifier_reference>EMA_at_areoid_image</local_identifier_reference>
<local_identifier_reference>Phase_angle_image</local_identifier_reference>
<local_identifier_reference>Latitude_image</local_identifier_reference>
<local_identifier_reference>Longitude_image</local_identifier_reference>
<local_identifier_reference>INA_at_surface_from_MOLA_image</local_identifier_reference>
<local_identifier_reference>EMA_at_surface_from_MOLA_image</local_identifier_reference>
<local_identifier_reference>Slope_magnitude_from_MOLA_image</local_identifier_reference>
<local_identifier_reference>MOLA_slope_azimuth_image</local_identifier_reference>
<local_identifier_reference>Elevation_image</local_identifier_reference>
<local_identifier_reference>Thermal_inertia_image</local_identifier_reference>
<local_identifier_reference>Bolometic_albedo_image</local_identifier_reference>
<local_identifier_reference>Local_solar_time_image</local_identifier_reference>
<local_identifier_reference>Spare_image</local_identifier_reference>
<local_reference_type>display_settings_to_array</local_reference_type>
</Local_Internal_Reference>
disp:Display_Direction
disp:horizontal_display_axisSample</disp:horizontal_display_axis>
disp:horizontal_display_directionLeft to Right</disp:horizontal_display_direction>
disp:vertical_display_axisLine</disp:vertical_display_axis>
disp:vertical_display_directionTop to Bottom</disp:vertical_display_direction>
</disp:Display_Direction>
</disp:Display_Settings>

vs.

<Discipline_Area>
disp:Display_Settings
<Local_Internal_Reference>
<local_identifier_reference>INA_at_areoid_image</local_identifier_reference>
<local_reference_type>display_settings_to_array</local_reference_type>
</Local_Internal_Reference>
disp:Display_Direction
disp:horizontal_display_axisSample</disp:horizontal_display_axis>
disp:horizontal_display_directionLeft to Right</disp:horizontal_display_direction>
disp:vertical_display_axisLine</disp:vertical_display_axis>
disp:vertical_display_directionTop to Bottom</disp:vertical_display_direction>
</disp:Display_Direction>
</disp:Display_Settings>
disp:Display_Settings
<Local_Internal_Reference>
<local_identifier_reference>EMA_at_areoid_image</local_identifier_reference>
<local_reference_type>display_settings_to_array</local_reference_type>
</Local_Internal_Reference>
disp:Display_Direction
disp:horizontal_display_axisSample</disp:horizontal_display_axis>
disp:horizontal_display_directionLeft to Right</disp:horizontal_display_direction>
disp:vertical_display_axisLine</disp:vertical_display_axis>
disp:vertical_display_directionTop to Bottom</disp:vertical_display_direction>
</disp:Display_Direction>
</disp:Display_Settings>
...

[LevN0]

Thank you for reporting. This has been on my agenda for a while. I wanted to do a more comprehensive refactoring for discipline dictionaries, but looks like for now I will stick to just addressing this specifically.