Hello everybody,

I'm experimenting to enable advanced projection support with
StreamingRenderer options ADVANCED_PROJECTION_HANDLING_KEY
<https://docs.geotools.org/stable/javadocs/org/geotools/renderer/lite/StreamingRenderer.html#ADVANCED_PROJECTION_HANDLING_KEY>
&
CONTINUOUS_MAP_WRAPPING
<https://docs.geotools.org/stable/javadocs/org/geotools/renderer/lite/StreamingRenderer.html#CONTINUOUS_MAP_WRAPPING>
in
uDig.

Everything works as expected, I'm wondering how to pass information hint
for prefered request-Format to WebMapServer getMap Request.

I've seen a hint-option for WebMapServer but I'm not sure regarding:
* what key I might have to use to give a format hint (e.g. IMAGE_FORMAT
image/jpeg) rather then default image/png
* how this option is passed  to GetMapRequest

I would love to get a hint on how to implement this feature (request) to
allow me to contribute to GeoTools again.

User-Scenario:
* user can configure preferred image format for wms requests un uDig UI
* the selected image format should be used for getMap requests

Class in uDig : BasicWMSRenderer2
<https://github.com/locationtech/udig-platform/blob/master/plugins/org.locationtech.udig.render.wms.basic/src/org/locationtech/udig/render/internal/wms/basic/BasicWMSRenderer2.java>
doesn't
uses StreamingRenderer at the moment of writing and I'd like to use
GeoTools renderer here as well to enable advanced rendering options.

Many Thanks in advance
--
Frank b/o uDig project
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