[Merkaartor] problems w/ some WMS-Servers

[Chris Browet]

I think I got it.

This WMS is unusual (or even maybe non-standard) in that it somehow gives
priority the WIDTH/HEIGHT vs. the BBOX.

All other WMS servers I know honour the bounding box, then resize the image
to match the width/height requested.
This one doesn't deform the image and prefer to give a larger BBOX than the
one requested.

There is unfortunately no quick fix for this. It'll have to wait for 0.14
and maybe a specific plugin (bacgkrounds will be pluggable, then).

Regards
- Chris -

On Sun, Mar 1, 2009 at 1:56 PM, kannix <test at grade.de> wrote:

> Chris Browet schrieb:
> >
> >     Getting closer, reverse engineering requests, I found out
> >     - JOSM ask for a 45 deg azimuth bbox
> >     - Merkaartor ask for approx. 26 deg azimuth bbox
> >
> >
> > I'm no geographer, but if I understand you, there should be some minimal
> > latitude span, right?
> > I noticed the tiles are stitching correctly, longitude-wise.
>
> I do not know much about this, either :-(
>
> To me, it looks like 2nd (upper-right) coordinate should have 45°
> azimuth offset from lower-left coordinate.
>
> JOSM requests seem to always use this. Projection (called EPSG:4326,
> Mercator,...) is adjusted by width and hight of requested tiles.
>
> Have a nice day, Dirk
>
>
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