Hello all!
I'm trying to convert my regular MAP file to be WMS compliant and to be
able to get the contents through WMS requests. I am following the
tutorial here: http://mapserver.org/ogc/wms_server.html.
The GetCapabilities request works:
http://terra/cgi-bin/mapserv?map=/var/www/html/map/rtc_base.map&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetCapabilities
The GetMap request fails:
http://terra/cgi-bin/mapserv?map=/var/www/html/map/rtc_base.map&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&LAYERS=GranitaJudete&STYLES=&SRS=EPSG:4326
The output returned is:
<?xml version='1.0' encoding="ISO-8859-1" standalone="no" ?>
<!DOCTYPE ServiceExceptionReport SYSTEM
"http://schemas.opengis.net/wms/1.1.1/exception_1_1_1.dtd";>
<ServiceExceptionReport version="1.1.1">
<ServiceException>
msProcessProjection(): Projection library error. no system list, errno: 13
</ServiceException>
</ServiceExceptionReport>
The Map file has the following definitions:
MAP
...
WEB
...
METADATA
...
"wms_title" "Basic Map"
"wms_attribution_title" "Basic Map"
"wms_srs" "EPSG:900913"
END
END
PROJECTION
#spherical mercator/google
"+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0
+y_0=0 +k=1.0 +units=m +nadgri...@null +no_defs"
END
LAYER
NAME "GranitaJudete"
...
METADATA
"wms_title" "GranitaJudete"
"wms_srs" "EPSG:4326"
END
PROJECTION
#WGS84
"+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"
END
...
END
END
The thing is (if I remember correctly) my mapserver doesn't really
recognize projections by their EPSG code, but it works if I supply the
other definition. I'm not sure how to correct that and I don't know if
this is the cause.
I've looked into PROJ4 source code and I found refrences to errorcode
-13 in this function: PJ *pj_latlong_from_proj( PJ *pj_in ) from
src/pj_utils.c. It returns errorcode -13 if can't find "datum", "ellps"
or "a".
I'm not sure where to go from here, as google doesn't find this
particular error code...
Thanks
--
---
Adrian Popa
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