Heatmap fails to take WMS1.3 axes switch into account

Heatmap fails to take WMS1.3 axes switch into account

Using WMS 1.1.1 everything looks OK: the heatmap and the polygon layer in my example are well aligned.

http://localhost:8080/geoserver/geomesa/wms?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&FORMAT=image/png&TRANSPARENT=true&STYLES=polygon,heatmap&TIME=2017-08-01T11:00:00.000Z/2017-08-01T12:00:00.000Z&DPI=14&LAYERS=geomesa:zbez,geomesa:origins&SRS=EPSG:4326&WIDTH=1430&HEIGHT=768&BBOX=15.759201049804688,47.93609619140625,16.741104125976562,48.46343994140625

In WMS 1.3.0, the axes switch, i.e. the order of lat and lon has to be changed in the BBOX parameter. The heatmap vanishes:

http://localhost:8080/geoserver/geomesa/wms?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&FORMAT=image/png&TRANSPARENT=true&STYLES=polygon,heatmap&TIME=2017-08-01T11:00:00.000Z/2017-08-01T12:00:00.000Z&DPI=14&LAYERS=geomesa:zbez,geomesa:origins&SRS=EPSG:4326&WIDTH=1430&HEIGHT=768&BBOX=47.93609619140625,15.759201049804688,48.46343994140625,16.741104125976562

To see the heatmap, one has to send a request with the 1.1.1 axis order:

http://localhost:8080/geoserver/geomesa/wms?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&FORMAT=image/png&TRANSPARENT=true&STYLES=polygon,heatmap&TIME=2017-08-01T11:00:00.000Z/2017-08-01T12:00:00.000Z&DPI=14&LAYERS=geomesa:zbez,geomesa:origins&SRS=EPSG:4326&WIDTH=1430&HEIGHT=768&BBOX=15.759201049804688,47.93609619140625,16.741104125976562,48.46343994140625

Of course, now we only see the heatmap and the second layer is gone.

Update 1: The situation seems even more complex: "WMS 1.3.0 server and client code needs to be aware of the axis order for each SRS that it supports and to use the correct coordinate order in its BBOX"
Source: http://dmorissette.blogspot.co.at/2012/12/dont-upgrade-to-wms-130-unless-you.html

Original JIRA Issue: https://geomesa.atlassian.net/browse/GEOMESA-2054

Key: GEOMESA-2054
Type: Bug
Priority: Major
Status: To Do
Resolution: Unresolved
Reporter: Anita Graser
Created: Fri, 6 Oct 2017 09:24:53 -0400
Updated: Fri, 6 Oct 2017 15:14:03 -0400
Affects Version(s): 2.0.0, 1.3.3
JIRA Labels: geoserver

Start by reproducing the supplied WMS 1.1.1 and 1.3.0 GetMap requests and compare the BBOX axis order with the rendered polygon and heatmap layers. Trace the GeoServer WMS heatmap handling from the request entry point; done means the heatmap and polygon remain aligned for the correct WMS 1.3.0 EPSG:4326 axis order.