On the fly RASTER warping

[Marc Monnerat]

Hi,

I think you could use the ProjectionObj in Mapscript to convert your points:
http://mapserver.gis.umn.edu/docs/reference/phpmapscript-class/classes/projectionobj

Copied/pasted from the above link::

Creates a projection object based on the projection string passed as 
argument.

Eg : $projInObj = ms_newprojectionobj("proj=latlong") will create a 
geographic projection class.

Eg of usage : the following example will convert a lat/long point to an 
LCC projection :

  $projInObj = ms_newprojectionobj("proj=latlong");
  $projOutObj = ms_newprojectionobj("proj=lcc,ellps=GRS80,lat_0=49,".
                       "lon_0=-95,lat_1=49,lat_2=77");
  $poPoint = ms_newpointobj();
  $poPoint->setXY(-92.0, 62.0);
  $poPoint->project($projInObj, $projOutObj);


So replace the parameters according to your projections

Marc Monnerat



Michael S. Birkmose wrote:
>> Hello,
>>
>> If your EXTENT are degrees (-180 -90 180 90), so your UNITS should be
> DD
>>   and not METERS and this should match your map projection setting.
>> And if your wms server is Danmark only, try focusing on Danmark, not
> the
>> world!
>>
>> Didn't found any epsg:54004, is it standard ?
>>
>> Marc Monnerat
> 
> Hi Marc
> 
> Your input helped me further - now I can actually generate the map with
> the 54004 (Mercator) projection).
> 
> However I have a bit of a problem.
> 
> In my PHP mapscript I can only display something by using the
> coordinates in meters as you supplied it:
> 
> 
> $gpoMap = ms_newMapObj("wmsmmap.map");
> $gpoMap->setExtent(868292.03, 7135562.57, 1447153.38, 7931049.58);
> 
> However I would like to set the extent using degrees - i.e:
> 
> $gpoMap->setExtent(7.8, 54, 13, 58);
> 
> How would I do this?
> Alternativly how could I convert my degrees to meters as you supplied
> it?
> 
> Best regards,
> Michael
> 
>