[mapserver-users] Projections and raster files

[Jeff McKenna]

On 2013-08-29 12:00 PM, David Power wrote:
> Hello,
> 
> I have a number of geotiffs which are currently using epsg:4326 and I
> would like to output a region using epsg:3857.
> 
> I am new to mapserver but from what I have read the way achieve this is
> by setting the projection of the map to epsg:3857 and the layer to
> epsg:4326.
> 
> When I set the projections to the same value I get the output I expect
> without a problem, if I set the projections to different values I do not
> get an error but the output is blank.
> 
> To make life more complicated I am using mapscript via the Java swig
> interface, the version of mapserver I am using is mapserver 6.1.2.1
> which I built from source.
> 
> If anybody has any advice I would be most grateful.
> 
> David
> 
> - 
> 

You might also want to review the "Important Notes" section of the
PROJECTION documentation:
http://www.mapserver.org/mapfile/projection.html#important-notes

-jeff


-- 
Jeff McKenna
MapServer Consulting and Training Services
http://www.gatewaygeomatics.com/