[mapserver-users] Difference in appearance between "mode=map" andWMS

[Roger André]

Perfect, yes.  That should do exactly what I need.  I'd forgotten about
those OWSRequests.  Tilecache uses those in its MapServerLayer requests as
well.

Thanks very much Tom
--

On Mon, Dec 8, 2008 at 2:33 PM, Kralidis,Tom [Ontario] <
Tom.Kralidis at ec.gc.ca> wrote:

>
> Roger: you can use MapScript WxS
> http://mapserver.gis.umn.edu/docs/howto/wxs_mapscript as an approach to
> run a WMS request via mapscript.  Maybe that can work for you?
>
> ..Tom
>
>
>
> -----Original Message-----
> From: mapserver-users-bounces at lists.osgeo.org on behalf of Roger André
> Sent: Mon 08-Dec-08 16:21
> To: Julien-Samuel Lacroix
> Cc: mapserver-users at lists.osgeo.org
> Subject: Re: [mapserver-users] Difference in appearance between "mode=map"
> andWMS
>
> Hi Julien,
>
> That makes sense, but it doesn't work.  I modified my mapfile so that I now
> generate a 20_deg x 20_deg tile that is 600_pixels x 600_pixels.  If I
> georeference that image using the extents, I still get incorrect placement.
> Maybe if I choose an output projection which always has square pixels, like
> spherical mercator (?) this will work.  I'll give it a shot.
>
> Is there any way to give a WMS request via mapscript and NOT go through
> CGI?
>
> Roger
> --
>
>
>
> On Mon, Dec 8, 2008 at 12:25 PM, Julien-Samuel Lacroix <
> jlacroix at mapgears.com> wrote:
>
> > 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
> >> --
> >>
> >>
> >> ------------------------------------------------------------------------
> >>
> >> _______________________________________________
> >> mapserver-users mailing list
> >> mapserver-users at lists.osgeo.org
> >> http://lists.osgeo.org/mailman/listinfo/mapserver-users
> >>
> >
> > --
> > Julien-Samuel Lacroix
> > Mapgears
> > http://www.mapgears.com/
> >
>
>
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