Hi, I am using
MapServer version 6.4.0 OUTPUT=PNG OUTPUT=JPEG SUPPORTS=PROJ SUPPORTS=AGG SUPPORTS=FREETYPE SUPPORTS=ICONV SUPPORTS=WMS_SERVER SUPPORTS=WCS_SERVER INPUT=JPEG INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE While overlaying two latlong point layers using a map file with an epsg:3003 output projection I noticed an offset resulting for one of the two layers. this comes from the fact that one layer is an epsg:4326 shapefile, which is being reprojected to epsg:3003 by mapserver, while the other layer is generated on the fly be reading lat+lon from a database, and generating a point layer for which x,y coordinates are obtained by calling the system's gdaltransform, so it seems that the two packages don't use the same process to execute the reprojection. I am aware of the towgs84 correction to be applied in Italy, so I was able to reconcile the issue by specifying the mapfile projection with the customized projection string what I would like to understand is if there is a way to check which what version of proj is being used by my version of mapserver, to pin-point the source of the difference between the two systems I tried fiddling with ldd and strings, but would appreciate a lead (also to check if the issue may be elsewhere) TIA for any feedback, and regards Andrea http://www.pibinko.org -- Andrea Giacomelli http://www.pibinko.org i...@pibinko.org +39 347 15 33 857
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