[OpenLayers-Users] Call Mapfile layer with Openlayers when status ON or OFF

[Paul Curran]

Thanks for your responses

I have now removed the map parameter as suggested. I am just trying to
display one layer correctly and i will then add my second layer when my
single layer looks right.

My layer is now displaying tiled across the screen several times and quite
zoomed out, i cannot zoom in or out

My code now looks as follows:

      var bounds = new OpenLayers.Bounds(0, 0, 660046, 1229782);
      var map, layer1, layer2;
      var options = { maxExtent: bounds, maxResolution: 600, numZoomLevels:
10};


      function init(){
          map = new OpenLayers.Map('map', options);
      layer1 = new OpenLayers.Layer.WMS("OpenLayers WMS",
      "
http://localhost/cgi-bin/mapserv.exe?mode=map&map=c:/ms4w/apps/openlayers-2.5/data/uk2.map",
{ layers: "250" },
      { gutter: 15, minZoomLevel: 1, maxZoomLevel: 4 });
      map.addLayer(layer1);

      map.zoomToExtent(bounds);
      map.setCenter(bounds);
      map.zoomToMaxExtent();
      map.addControl(new OpenLayers.Control.PanZoomBar());
      map.addControl(new OpenLayers.Control.MousePosition());
      }

Any more much much appreciatted

Cheers

2009/9/9 Alexandre Dube <adube at mapgears.com>

> Hi Paul,
>
> You can copy the image url by right clicking on it and open it in a new
> window. You'll see the request url constructed by OpenLayers and maybe an
> error message from MapServer.
>
> I noticed that you use the "map" parameter. WMS has no such parameter so it
> should be part of your main url, like below. Also, if you look in the
> OpenLayers/Layer/WMS.js code, you'll see that this object takes 4
> parameters, the 3e being the server-side "parameters" and the 4th being the
> OpenLayers object "options". min/maxZoomLevel are not parameters but OL
> options.
>
> layer1 = new OpenLayers.Layer.WMS(
> "OpenLayers WMS",
>
> "
> http://127.0.0.1/cgi-bin/mapserv.exe?map=/ms4w/apps/openlayers-2.5/data/uk2.map&
> ",
> { layers: "uk"},
>
> { gutter: 15, minZoomLevel: 1, maxZoomLevel: 4 }
> );
>
>
> If you still get pink tiles, copy the link in a new window to see the
> error.
>
> Regards,
>
> Alexandre
>
> Paul Curran wrote:
>
>>
>> Hi
>>
>> I can view my UK Layer via Mapserver with the following url:
>> 'ms4w/cgi-bin/mapserv.exe?mode=map&map=c:mapdirectory*&layer=uk'.* The
>> *&layer=uk *is calling my layer.
>>
>> However I can’t find any documentation on how to call the layer when
>> viewing my map within OpenLayers.
>>
>> I am currently trying to call the layer like this:
>>
>> var map, layer1, layer2;
>>
>> var options = { maxExtent: bounds, maxResolution: 600, numZoomLevels: 10};
>>
>> layer1 = new OpenLayers.Layer.WMS("OpenLayers WMS",
>>
>> "http://127.0.0.1/cgi-bin/mapserv.exe?", { layers: "uk", map:
>> '/ms4w/apps/openlayers-2.5/data/uk2.map',
>>
>> minZoomLevel: 1, maxZoomLevel: 4 },
>>
>> { gutter: 15 });
>>
>> layer2 = new OpenLayers.Layer.WMS("OpenLayers WMS",
>>
>> "http://127.0.0.1/cgi-bin/mapserv.exe?", { layers: "250", map:
>> '/ms4w/apps/openlayers-2.5/data/uk2.map',
>>
>> minZoomLevel: 5, maxZoomLevel: 10},
>>
>> { gutter: 15 });
>>
>> map.addLayer(uk, 250);
>>
>> map.zoomToExtent(bounds);
>>
>> map.setCenter(bounds);
>>
>> map.zoomToMaxExtent();
>>
>> However I am just seeing pink tiles within OpenLayers.
>>
>> Note: If my layers are set to default within my Mapfile all my layers are
>> displayed.
>>
>> Thanks for any help in advance
>>
>> Paul
>>
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> Users mailing list
>> Users at openlayers.org
>> http://openlayers.org/mailman/listinfo/users
>>
>>
>
>
> --
> Alexandre Dubé
> Mapgears
> www.mapgears.com
>
>
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