Layers from ncWMS2 don't seem to display properly

[rsignell-usgs]

I'm trying to visualize WMS layers from the new ncWMS2 service that comes with the Unidata THREDDS Data Server version 5.0.

The getCapabilities seem okay:
http://thredds-jumbo.unidata.ucar.edu/thredds/wms/grib/NCEP/GFS/Global_2p5deg/Best?service=WMS&version=1.3.0&request=GetCapabilities

And getMap requests work:
http://thredds-jumbo.unidata.ucar.edu/thredds/wms/grib/NCEP/GFS/Global_2p5deg/Best?LAYERS=Best/Temperature_height_above_ground&ELEVATION=2&TIME=2016-06-30T00%3A00%3A00.000Z&TRANSPARENT=true&STYLES=default-scalar%2Fx-Rainbow&COLORSCALERANGE=200%2C310&NUMCOLORBANDS=20&LOGSCALE=false&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&FORMAT=image%2Fpng&SRS=EPSG%3A4326&BBOX=-180,-90,180,90&WIDTH=256&HEIGHT=256

But nothing seems to show up when I add this layer to the new UI instance at:
http://preview.nationalmap.terria.io/

[kring]

@rsignell-usgs it seems to be working ok here, but that server is _very_slow: tens of seconds per tile for the tiles in the vicinity of Australia.

You'll probably need to pause the animation, otherwise the clock will have moved on well before any tiles are loaded.

[kring]

I should mention, what I'm see on the globe is much less interesting then in your GetMap request above. It's mostly all black. I'm guessing that's because you've specified an elevation, style, colorscalerange, etc., and I haven't.

[rsignell-usgs]

@kring, my bad (again). You are correct, of course. I got confused by by an error that was actually a DescribeLayer request, not a GetMap request. And yes, we need to set the COLORSCALERANGE to get something that looks decent. Luckily, with your help, we have that in the works! 😸 USGS-CMG/terriajs-dive#10