Google maps projections..

[Frank Warmerdam]

On 11/6/05, Steve Young <steve at sierraclub.bc.ca> wrote:
> Google map's projection is Mercator, but uses lat long as units (rather than
> metres). I think there's something that Mapserver does with bounding boxes
> that other WMS don't do. I haven't successfully got a WMS overlaid correctly
> using my mapserver WMSs (3.6.1 and 4.0). I've got close using John Deck's
> method, but suffer tile alignment issues that don't affect other WMS
> servers.

Steve,

In the early days (ie. Up MapServer 4.2 or so) MapServer did not honour
non-square pixel requests.  It would basically adjust the extents of
the request to force the pixel size to be square.    This was fixed in
MapServer 4.4 (or perhaps 4.6?)

I don't have anything to add on the Google overlay business.

Best regards,
--
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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