#2651 HAPI data doesn't come up as spectrograms by default

[Jeremy Faden]

Some data which is best veiwed as spectrograms is coming up as a stack of line plots. For example, try:

vap+hapi:https://cdaweb.gsfc.nasa.gov/hapi?id=MMS2_FEEPS_SRVY_L2_ION&parameters=Time,mms2_epd_feeps_srvy_l2_ion_bottom_count_rate_sensorid_6&timerange=2024-05-10

To work around this:

1. plot vap+hapi:https://cdaweb.gsfc.nasa.gov/hapi?id=MMS2_FEEPS_SRVY_L2_ION&parameters=Time,mms2_epd_feeps_srvy_l2_ion_bottom_count_rate_sensorid_6&timerange=2024-05-10
2. right-click on the plot, Plot Element Type->Spectrogram

[Jeremy Faden]

It looks like any QDataSet which contains a bundle will be drawn as a stack of lines. This is surprising since some of the LANL RBSP datasets had bundles so you could look at them either way, and it must be that renderType was used to force spectrograms by default. There was 2012 code which detected spectrograms which had a bundle, but this was commented out (in guessRenderType).

I'm adding code so that if the bundle channels are not named and the units are all the same.