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Hello everyone!<br>
<br>
I'm trying to troubleshoot a proj error, and I need your help! I have
started this thread also on the mapserver mailing list, but I didn't
find a solution yet:
<a class="moz-txt-link-freetext" href="http://n2.nabble.com/msProcessProjection-Projection-library-error-no-system-list-errno-13-td3807641.html">http://n2.nabble.com/msProcessProjection-Projection-library-error-no-system-list-errno-13-td3807641.html</a><br>
<br>
I'm running mapserver, and I'm trying to configure it to act as a WMS
server. My data is in wgs84 (epsg:4326) and I want to project it to
mercator projection (epsg:900913).<br>
<br>
I have configured the mapfile and the projections according to the
Mapserver documentation and they work as long as the projection
sections are defined like: <br>
PROJECTION<br>
#spherical mercator/google<br>
"+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 +nadgrids=@null +no_defs"<br>
END<br>
<br>
and <br>
<br>
PROJECTION<br>
#WGS84<br>
"+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"<br>
END<br>
<br>
If I ask for EPSG projections (through WMS), I get the error in the
subject.<br>
Here is my WMS url: <br>
<pre wrap=""><a moz-do-not-send="true" class="moz-txt-link-freetext"
href="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">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:900913</a>
</pre>
<br>
I have tried to debug the problem by using shp2img, and it seems that
mapserver tries to open /usr/share/proj/null as a file. I created a
symlink between /usr/share/proj/epsg and /usr/share/proj/null, and now
shp2img reads the file, but I get the same error while trying to call
the WMS server.<br>
<br>
My question is: how can I try to troubleshoot this issue - to see if
there's a problem with proj? <br>
<br>
<font color="#000000">I'd like to mention that I have added </font><font
color="#000000" size="2"><span class="078092008-13102009"><900913>
+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 <a href="mailto:+nadgrids=@null">+nadgrids=@null</a>
+no_defs to my epsg file and my proj version is:<br>
</span></font>[adrianp@terra mapserver]$ rpm -qa | grep proj<br>
proj-devel-4.5.0-1.fc5<br>
proj-4.5.0-1.fc5<br>
<font color="#000000" size="2"><span class="078092008-13102009"><br>
Regards,<br>
Adrian<br>
</span></font><font color="#0000ff" face="Arial" size="2"><span
class="078092008-13102009"></span></font>
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</pre>
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