Hi Johnson,
Welcome to the MapServer community.
Regarding those errors, here are some rules that I always follow, that
may help your case:
- when serving through WMS/WFS etc, always make sure to remove all
errors from a GetCapabilities response first (in your case, there might
be warnings of missing metadata such as "wfs_srs").
- try not to use a non-standard projection (EPSG:900913 was officially
replaced by EPSG:3857 https://epsg.io/3857), you're just asking for
possible trouble down the road if you do...
- just to see if these errors are related to a projection, possibly
setup a test case where your source data is in 4326, you serve the data
through WFS in 4326, and your client-side application requests the data
in 4326 (and see if those errors still exist)
- possibly set the EXTENT values for the map object to the whole world:
-180 -90 180 90
- test your mapfile locally with the shp2img commandline utility
(http://mapserver.org/utilities/shp2img.html)
Other notes:
I have seen odd projection errors like yours before, somehow being
caused in a client-side javascript application requesting WMS/WFS
layers. In my case I believe the maps were generated fine, so I might
have 'lived' with those errors, not sure.
-jeff
--
Jeff McKenna
MapServer Consulting and Training Services
http://www.gatewaygeomatics.com/
On 2017-07-10 8:31 PM, Vu, Johnson (EC) wrote:
Hi,
I’m a student working on a webapp that uses mapserv 6.4.1. I’ve been
getting this error in my ms_error.txt and I’m having trouble finding the
cause. At first I thought it was a problem with my extents, so I
verified all of them with my .shp files and everything was OK. I am
using epsg:4326 as my projection. I’ve bolded the two errors I’ve been
seeing the most. They fill the error log when I click on a region on the
map.
Does anyone know possible causes for the error I’ve posted below? I’m
very new to mapserv and would appreciate any help.
wxo_mapserv/tmp_output/ms_error.txt:
[Mon Jul 10 23:06:29 2017].538763 msProjectPoint(): Projection library
error. proj says: latitude or longitude exceeded limits
[Mon Jul 10 23:06:29 2017].538797 msProjectPoint(): Projection library
error. proj says: latitude or longitude exceeded limits
[Mon Jul 10 23:06:29 2017].538813 msProjectRect(): some points failed to
reproject, doing internal sampling.
[Mon Jul 10 23:06:29 2017].539124 mapserv request processing time
(msLoadMap not incl.): 0.352s
[Mon Jul 10 23:06:29 2017].539162 msFreeMap(): freeing map at 0x2188de0.
[Mon Jul 10 23:06:35 2017].301195 CGI Request 1 on process 31628
[Mon Jul 10 23:06:35 2017].302266 msWFSParseRequest(): WFS post request:
<GetFeature service="WFS"
version="1.1.0"
srsName="EPSG:900913" xmlns:topp="http://www.openplan
s.org/topp"
xmlns:wfs="http://www.opengis.net/wfs";
xmlns:ogc="http://www.opengis.net
/ogc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http
://www.opengis.net/wfs
http://schemas.opengis.net/wfs/1.0.0/WFS-basic.xsd";>
<Query
typeName="clc_he_site_e"
srsName="EPSG:900913">
<Filter><Intersects> <Pr
opertyName>the_geom</PropertyName> <Point
srsName="EPSG:900913">
<coordinates>-11383613.748454727,6924094.039571445</coordinates>
</Point>
</Intersects></Filter>
</Query> </GetFeature>
[Mon Jul 10 23:06:35 2017].303829 msProjectPoint(): Projection library
error. proj says: tolerance condition error
[Mon Jul 10 23:06:35 2017].303882 msProjectPoint(): Projection library
error. proj says: tolerance condition error
[Mon Jul 10 23:06:35 2017].303909 msProjectPoint(): Projection library
error. proj says: tolerance condition error
[Mon Jul 10 23:06:35 2017].303954 msProjectPoint(): Projection library
error. proj says: tolerance condition error
*“msProjectPoint(): Projection library error. proj says: tolerance
condition error” <- repeats several hundred
lines*
*“msProjectPoint(): Projection library error. proj says: latitude or
longitude exceeded limits” <- repeats several hundred lines*
Post Request param:
<?xml version="1.0"encoding="UTF-8"?>||
<GetFeaturexmlns:ogc="http://www.opengis.net/ogc"xmlns:topp="http://www.openplans.org/topp"xmlns:wfs="http://www.opengis.net/wfs"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"service="WFS"version="1.1.0"srsName="EPSG:900913"xsi:schemaLocation="http://www.opengis.net/wfs
http://schemas.opengis.net/wfs/1.0.0/WFS-basic.xsd
<http://www.opengis.net/wfs %20http:/schemas.opengis.net/wfs/1.0.0/WFS-basic.xsd>">||
||<QuerytypeName="clc_he_site_e"srsName="EPSG:900913">||
||<Filter>||
||<Intersects>||
||<PropertyName>|the_geom|</PropertyName>||
||<PointsrsName="EPSG:900913">||
||<coordinates>|-11452101.325798245,7031717.375396973|</coordinates>||
||</Point>||
||</Intersects>||
||</Filter>||
||</Query>||
</GetFeature>
Thanks,
Johnson
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