[OpenLayers-Users] Display specific layer from mapfile

[Paul Curran]

Thanks for the response, you are right both my layers are set as STATUS
DEFAULT. However when I set one layer status to ON and the other OFF and
view via mapserver (cgi-bin/mapserv.exe?) I can only see a blank white
screen  and via open layers I get the error message 'WMS server
error.WMSLoadGetMapParams()'.
The same happens if both my layers are set to ON, I seem to only be able to
view them when status set to DEFAULT.
Thanks for any help in advance

Paul

2009/9/8 Arnd Wippermann <arnd.wippermann at web.de>

>  Hi,
>
> from your code both layers should be baselayers. That means only one layer
> would displayed. That seems, that in your mapfile both layers have status
> default.
>
> Arnd
>
>  ------------------------------
> *Von:* users-bounces at openlayers.org [mailto:users-bounces at openlayers.org]
> *Im Auftrag von *Paul Curran
> *Gesendet:* Dienstag, 8. September 2009 23:10
> *An:* users at openlayers.org
> *Betreff:* [OpenLayers-Users] Display specific layer from mapfile
>
>   Hi,
>
> I am having trouble displaying a specific layer from my mapfile. I have two
> layers called '250' and 'uk'. I wish to display my '250' layer origninally,
> then zoom closer to display my 'uk' layer. however both my layers are
> currenlty displayed at all times.
>
> Am i going about this the correct way by having two variables 'layer1 and
> 'layer2' for layers from the same mapfile?
>
> Currently my code is as follows
>
> var bounds = new OpenLayers.Bounds(0, 0, 660046, 1229782);
> 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: "250", map:
> '/ms4w/apps/openlayers-2.8/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: "uk", map:
> '/ms4w/apps/openlayers-2.8/data/uk2.map', minZoomLevel: 5, maxZoomLevel: 10
> },
>       { gutter: 15 });
>
> map.addLayer(layer1, layer2);
>
> Thanks for any help in advance
>
>
> Paul
>
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