[OpenLayers-Users] MapServer OpenLayers Layer fails to load

[Burgholzer,Robert]

Jeff,
I have had some trouble loading more than one WFS layer in a single OL
interface - only one layer of that type could be loaded (at least at the
time I tried).  Perhaps the same limitation exists for type mapserver -
or perhaps it was the mapserver layer that I had problems with, not WFS.


Try switching the order, and also, in case this has already been solved,
make sure that you are using 2.7.

HTH

Robert W. Burgholzer
Surface Water Modeler
Office of Water Supply and Planning
Virginia Department of Environmental Quality
rwburgholzer at deq.virginia.gov
804-698-4405
Open Source Modeling Tools:
http://sourceforge.net/projects/npsource/

-----Original Message-----
From: users-bounces at openlayers.org [mailto:users-bounces at openlayers.org]
On Behalf Of jeffcopes
Sent: Tuesday, October 14, 2008 5:55 PM
To: users at openlayers.org
Subject: [OpenLayers-Users] MapServer OpenLayers Layer fails to load


All,

I have three layers I am loading through OpenLayers. One is a raster
layer
with two sets of global imagery. That is being created as an
"OpenLayers.Layer.MapServer" object. This layer loads fine. Another
layer
"rivers" is a vector layer and is created as an "OpenLayers.Layer.WMS"
object; it loads fine also. The remaining vector layers ("cities" and
"countries" do not load, even their mapfiles are from the same mapfile
template, their metadata is nearly identical, and their OpenLayers layer
definitions and MapServer layer definitions are similar. The results are
the
same regardless of the order of the object creation and layer adding to
the
map. I also know the mapfiles are seen because when I make these layers
the
only layers, the result is a gray background, and when I munge the
mapfile
names, I get pink tiles.

Both vector layers load when added to the "OpenLayers.Layer.MapServer"
object by appending the layer definition to the WMS map call, so I am
working under the assumption the layer definitions are OK. Where should
I
begin troubleshooting this problem?

Here is the OpenLayers application:

        map = new OpenLayers.Map('map',options );
        var landsat =
           new OpenLayers.Layer.MapServer("LandSat",
               "http://dnocc8067:8090/cgi-bin/harrismaps?map="
              +
"/usr/local/mapserver/www/htdocs/maps/world_highres_experimental.map"
              + "&layer=blue_marble_world"
              + "&layer=landsat"
              ,{layers: "blue_marble_world,landsat"}
              ,{'displayInLayerSwitcher':"false"}
         );

        var countries =
           new OpenLayers.Layer.WMS("Country Borders",
               "http://dnocc8067:8090/cgi-bin/harrismaps?map="
              + "/usr/local/mapserver/www/htdocs/maps/countries.map"
              ,{layers: "countries", 'isBaseLayer': "false",
transparent:
"true"});

        var rivers =
           new OpenLayers.Layer.WMS("Rivers",
               "http://dnocc8067:8090/cgi-bin/harrismaps?map="
              + "/usr/local/mapserver/www/htdocs/maps/rivers.map"
              ,{layers: "rivers", 'isBaseLayer': "false", transparent:
"true"});

        var cities =
           new OpenLayers.Layer.WMS("Cities",
               "http://dnocc8067:8090/cgi-bin/harrismaps?map="
              + "/usr/local/mapserver/www/htdocs/maps/cities.map"
              ,{layers: "largecities,cities", 'isBaseLayer': "false",
transparent: "true"});

         map.addLayer(landsat);
         map.addLayer(countries);
         map.addLayer(rivers);
         map.addLayer(cities);
         countries.setVisibility(false);
         rivers.setVisibility(false);
         cities.setVisibility(false);


Thanks,

Jeff
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