Hi,
I guess would be that the WMS use non-square pixels. So if your BBOX x/y
(rectangle in your case) doesn't match you WIDTH/HEIGHT ratio (square
in your case) the map will appear stretched. MapServer will actually
stretch the map to fit the extent in the WIDTH/HEIGHT.
The mode=map don't do that. If your extent doesn't have the same ratio,
it adds some degree in your extent to fit the size.
Make sure your BBOX and EXTENT are a square in your requests and retry
Julien
Roger André wrote:
Hi All,
I think I'm having an instance of cranial flatulation, but maybe not.
Hopefully you can set me straight.
I need to create an image with Mapserver using mapscript that I can then
georeference manually and use in another application. It needs to look
exactly the same as the image I can already generate via a WMS call that
looks like this:
http://localhost/cgi-bin/mapserv?map=/var/www/mapfiles/hydro/hydro.map
&SERVICE=WMS
&version=%221.1.1%22
&REQUEST=GetMap
&LAYERS=imagery
&STYLES=&BBOX=-125,39,-108,54
&WIDTH=600
&HEIGHT=600
&FORMAT=png
&SRS=epsg:4326
I'm testing my mapscript parameters using a simple "mode=map" call to
Mapserver, and the results I'm getting so far don't match the appearance
of the WMS output at all. My mapfile has the following extent and
projection info in it:
PROJECTION
"init=epsg:4326"
END
EXTENT -125.0 39.0 -108.0 54.0
SIZE 600 600
In addition to the mapfile projection specification, I am also
specifying the same projection info in each of my LAYERS as well.
Is it possible to do what I'm trying to accomplish here?
Thanks,
Roger
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Julien-Samuel Lacroix
Mapgears
http://www.mapgears.com/
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