[mapserver-users] RE Problem using WMS GetFeatureInfo in OpenLayers with different projections

[Steve.Toutant at inspq.qc.ca]

In the metadata tag of your layer try set
"wms_srs"   "EPSG:4326 EPSG:900913"





Dejan Gambin <dejan.gambin at coin.hr>@lists.osgeo.org 
Envoyé par : mapserver-users-bounces at lists.osgeo.org
2014-01-16 05:03

A
mapserver-users at lists.osgeo.org
cc

Objet
[mapserver-users] Problem using WMS GetFeatureInfo in OpenLayers with 
different projections








Hi,

I am trying to send WMS GetFeatureInfo request using OL WMSGetFeatureInfo 
control. My source data is in 4326 and map is displayed in 900913. I have 
something like this in mapfile:

LAYER
  NAME "mylayer"
  TYPE RASTER
  STATUS ON
  PROJECTION
    "init=epsg:4326"
  END 
  METADATA
    "wms_srs"   "EPSG:4326"
    "wms_title"  "whatever"
    "gml_include_items" "value_0"
    "gml_value_0_alias" "Value 0"
    "gml_geometries" "none"
  END
  OPACITY 0
  TILEINDEX "mylayer_index"
  TILEITEM "LOCATION"
  TEMPLATE void
  DUMP true
END

In OL, I am using something like:

            var layer = new OpenLayers.Layer.WMS(
                'mylayer',
                'http://my.domain.com/cgi-bin/mywms?',
                {
                    format:'image/png',
                    transparent:true,
                    isBaseLayer:false,
                    layers:'mylayer'
                });

            control = new OpenLayers.Control.WMSGetFeatureInfo({
                url:  "http://my.domain.com/cgi-bin/mywms?",
                layers: [layer],
                hover: false,
                infoFormat: 'gml',
                maxFeatures: 1
            });

wms_srs in WEB part is "EPSG:900913 EPSG:4326" so it can serve data in 
both projections

The problem is - when I click to get the info I get "Internal server 
error" and in apache log I get "Segmentation fault" followed by "Premature 
end of script headers: mywms"

For test, I reprojected my source rasters to 900913, changed PROJECTION 
and wms_srs in LAYER to 900913 and then everything works.

Does anyone know what can be the problem? I am using MapServer 6.0.1 on 
debian os.

Thanks for any help

regards, dejan





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