WmsOverlay sends requests like the following to the WMS-server:
SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application/vnd.ogc.se_inimage&FORMAT=image/jpeg&.....
.... &UNIT=Meter&SCALE=577792.022145319
I would like to change the FORMAT of images from JPEG (the default) to PNG, is there a way to change the image format ?
I also would like to remove UNIT and SCALE from requests.
Using the Parameters collection I can add keys/values to requests but I can not change (override) default value.
Thank You in advance