landview mapserver application and treatment of layers

[Dylan Beaudette]

Steve,

Thanks for the reply. Here is a link to the mapserver application in 
question:

http://tinyurl.com/mrdp5

Dylan

On Apr 10, 2006, at 6:31 PM, Steve Lime wrote:

> Dylan: Do you have an application to look at? The answer depends on 
> the age of your landview code. Newer versions maintain layers as an 
> associative arrary where layer name is the key and the value is either 
> 1 or 0 (true or false). If you're using mapserv.js then you have a 
> instance of the Mapserv object. If that is called, say 'myMap', then 
> you'd manipulate the layers are using something like:
>
>   myMap.layers[name] = true;
>
> There are a few methods in the in the mapserv.js file to help with 
> this. The main one is called setlayer I believe. Again if you've got 
> something to look at it would be much easier to help you debug.
>
> Steve
>
>>>> Dylan Beaudette <dylan.beaudette at GMAIL.COM> 04/07/06 12:28 PM >>>
> Greetings,
>
> I have been struggling with getting layers to function properly with 
> the
> landview DHTML application.
>
> Currently, all of my layers defined in a mapfile, are set to DEFAULT. 
> I would
> like to be able to toggle them from the legend (and HTML legend) so I 
> have
> started setting key layers to ON .
>
> However, when i do this none of these layers show up on the map. If i
> explicitly define a layer to be on in the URL with layers=layer1 
> layer2 ...
> they layers appear on the map, but the checkbox next the the legend 
> entry is
> not checked. checking or unchecking the box has no effect.
>
> also, with every load of the page, I am getting the following error:
> Error: document.layers has no properties
> Source Line: 226
>
> any thoughts on what might be happening ?
>
> -- 
> Dylan Beaudette
> Soils and Biogeochemistry Graduate Group
> University of California at Davis
> 530.754.7341
>
>
--
Dylan Beaudette
Soils and Biogeochemistry Graduate Group
University of California at Davis
530.754.7341