Thanks, I am trying to get this.
Even if I change the createLayer function I am still confused as to
the layer name:
function createWmsLayer(name, url, params, options) {
var layer = new OpenLayers.Layer.WMS(name, url, params, options)
map.addLayer(layer);
return layer;
};
createWmsLayer("<span class='locc'>Ikke listet</span>",
"http://localhost/geoserver/wms";,
{layers: 'gbif_ns:ikke_listet',format:
'image/png', transparent: 'true'}, {singleTile: true, ratio: 1,
isBaseLayer:false,
visibility: false} );
It seems the layer name is now: "<span class='locc'>Ikke
listet</span>". That is the way it is displayed and there may be a
better way to style the menu (that is why I do it that way).
If I understand you correctly I should put the filter params inside
the createWMS function? And run the create function every time I do a
search? All these layers are from one PostGIS DB and filtered in
GeoServer. How about this:
function createWmsLayer(name, url, params, options) {
var layer = new OpenLayers.Layer.WMS(name, url, params, options)
map.addLayer(layer);
return layer;
// get search field value... var searchF =
$('#searchField').val() // query method
// if checkbox is A then cqlParam = "collector", if checbox is
B then cqlParam ="species" ......
filterParams = {
filter: null,
cql_filter: cqlPa LIKE '%" + search + "%' ",
featureId: null
};
};
Am I on the right path? Thanks for helping out :-)
~asle
2012/5/9 Phil Scadden <[email protected]>:
> This is all client side stuff - you would be better placing queries like
> this on the openlayers-users mailing list.
>
> However, looking at your issue.
>> Still I do not know how to call this in my page. In the example above it
>> says:
>> wms_layer.mergeNewParams({'CQL_FILTER':.....
>> Since I am a newbie I don't know how to call my layer. I.ex. I make a
>> layer this way:
>>
>> var createWmsLayer = function(name, url, params, options) {
>> map.addLayer(new OpenLayers.Layer.WMS(name, url, params, options));
>> };
>>
>> createWmsLayer("<span class='locc'>Ikke listet</span>",
>> "http://localhost/geoserver/wms";,
>> {layers: 'gbif_ns:ikke_listet',format: 'image/png',
>> transparent: 'true'}, {singleTile: true, ratio: 1, isBaseLayer:false,
>> visibility: false}
>> );
>>
>> So what do I put in the "wms_layer" in the example above?
>>
>> I tried to make a function like this:
>> function CQLfilter(param){
>> filter_list = []
>> filter_list.append("collector LIKE '%H%' ")
>> var cql = ' AND '.join(filter_list)
>> gbif_ns:ikke_listet.mergeNewParams({'CQL_FILTER': "collector LIKE
>> '%H%' "})
>> }
>>
>
> With your factory:
>
> var createWmsLayer = function(name, url, params, options) {
> map.addLayer(new OpenLayers.Layer.WMS(name, url, params, options));
> };
>
> The WMS layer is an anonymous variable. This makes it difficult to do
> other operations on.
>
> One approach would be
>
> function createWmsLayer(name, url, params, options) {
> var layer = new OpenLayers.Layer.WMS(name, url, params, options)
> map.addLayer(layer);
> return layer;
> };
>
> You need the layer object to do other things with.
>
> The CQLfilter doesnt make much sense me. I would pass in the layer object
> from createWmsLayer.
>
> When I add a CQL filter, I do it with
> filterParams = {
> filter: null,
> cql_filter: "collector LIKE '%H%' ",
> featureId: null
> };
> layer.mergeNewParams(filterParams);
>
> where layer is what is returned from createWmsLayer. If you want to stick
> with anomymous layers, then you have to search the layers array of the map
> object for the one you want to apply the CQL too.
>
> --
> Phil Scadden, Senior Scientist GNS Science Ltd 764 Cumberland St,
> Private Bag 1930, Dunedin, New Zealand Ph +64 3 4799663, fax +64 3 477 5232
>
> Notice: This email and any attachments are confidential. If received in error
> please destroy and immediately notify us. Do not copy or disclose the
> contents.
>
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