Re: AW: OMRaster Projection

Hi Christof,

That's kind of what OMRaster.setImageFilter() was intended to do. I
haven't looked at the JAI package yet to see if there's a way to use it
for projection warping.

There is another goal to work toward: it would be great to modify
OpenMap to be able to handle other projection definitions, including
non-OpenMap projections. Then, the WMSPlugIn could ask the server for a
SRS that matches the projection the MapBean is using.

If the map server and OpenMap couldn't agree on the projection that
OpenMap was using, then some image transformation could be performed on
the image that the map server *could* provide, and then do the JAI thing
if that's possible.

Something to think about, definitely.

- Don

Christof Krug wrote:
>
> Hi Don
>
> In WMSPlugin SRS=EPSG:4326 is hardcoded, but that is what my WMS Server is
> sending anyway. I am happy with the CADRG projection for now.
>
> I am just curious, if the OMRaster can be easily enhanced to perform warping
> may be using Java Advanced Imaging. I think JAI supports warping.
>
> Christof
>
> -----Ursprungliche Nachricht-----
> Von: owner-openmap-users@bbn.com [mailto:owner-openmap-users@bbn.com]Im
> Auftrag von Donald F. Dietrick
> Gesendet: Dienstag, 12. Juni 2001 00:04
> An: Christof Krug
> Cc: Openmap Discussion
> Betreff: Re: OMRaster Projection
>
> Hi Christof,
>
> You'll want to check your WMSPlugIn to see what projection (SRS) it is
> requesting the image be in when it comes from the WMS server. I haven't
> looked at it yet, so I don't know if it's hardcoded, or what. If the
> projection parameters of the MapBean don't match the image's projection,
> there will be inaccuracies.
>
> - Don
>
> Christof Krug wrote:
> >
> > Hi All
> >
> > I got the WMSPlugIn working. When I get a raster image (PNG) from a WMS
> > Server, the image is added as a OMRaster object to the OMGraphicsList.
> > Using the projections in the OpenMap application the map looks OK for
> CADRG,
> > but all the other projections are wrong compared to non raster objects.
> >
> > Does anybody have a hint what's wrong?
> >
> > Kind regards
> > Christof
> >
> > --
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