Hi Dushan,
This looks like a OpenLayers thing; you might want to try mailing it to
their mailing list as they're more likely to be able to help you.
Jonathan
On 9 July 2013 06:08, Dushan Niwantha <[email protected]> wrote:
> Hi,
> I'm using 5 layers and passing random values to VIEWPARAMS to select the
> wanted area. I added a layer switcher(mentioned in red at the bottom of the
> script) to show/hide layers. but switch layer component doesn't appear on
> openlayers map viewer. Please be kind to respond. need help.
>
> Regards.
>
> <script src="wms_files/OpenLayers.js" type="text/javascript"></script>
> <script defer="defer" type="text/javascript">
> var legs = "<%= geoParam %>";
> var layer_one_legs = "<%= geoParamLayerOne %>";
> var layer_two_legs = "<%= geoParamLayerTwo %>";
> var layer_three_legs = "<%= geoParamLayerThree %>";
> var layer_four_legs = "<%= geoParamLayerFour %>";
> var layer_four_five = "<%= geoParamLayerFive %>";
>
> var map;
> var base;
>
> var layer_one;
> var layer_two;
> var layer_three;
> var layer_four;
> var layer_five;
>
> /* pink tile avoidance */
> OpenLayers.IMAGE_RELOAD_ATTEMPTS = 5;
> /* make OL compute scale according to WMS spec */
> OpenLayers.DOTS_PER_INCH = 25.4 / 0.28;
>
> function init() {
>
> format = 'image/png';
> var bounds = new OpenLayers.Bounds(
> 97057.023,
> 174768.406,
> 118472.391,
> 192859.141);
> var options = {
> controls : [],
> maxExtent : bounds,
> maxResolution : 83.65378125000001,
> projection : "EPSG:2020",
> units : 'm'
> };
> map = new OpenLayers.Map('map', options);
>
> /* setup base layer */
> base = new OpenLayers.Layer.WMS(
> "Base",
> "http://localhost:8080/geoserver/wms";,
> {
> LAYERS : 'rda2',
> transparent: "true",
> singleTile: true,
> format : format
> },
> {
> buffer : 0,
> isBaseLayer : true,
> displayInLayerSwitcher:false
> });
>
> /* setup layer_one */
> layer_one = new OpenLayers.Layer.WMS(
> "Layer 01",
> "http://localhost:8080/geoserver/wms";,
> {
> VIEWPARAMS: layer_one_legs,
> LAYERS : 'RDA2_VIEW_LAYER_ONE',
> transparent: "true",
> singleTile: true,
> format : format
> },
> {
> buffer : 0,
> isBaseLayer : false,
> displayInLayerSwitcher:true
> });
>
> /* setup layer_two */
> layer_two = new OpenLayers.Layer.WMS(
> "Layer 02",
> "http://localhost:8080/geoserver/wms";,
> {
> VIEWPARAMS: layer_two_legs,
> LAYERS : 'RDA2_VIEW_LAYER_TWO',
> transparent: "true",
> singleTile: true,
> format : format
> },
> {
> buffer : 0,
> isBaseLayer : false,
> displayInLayerSwitcher:true
> });
>
> /* setup layer_three */
> layer_three = new OpenLayers.Layer.WMS(
> "Layer 03",
> "http://localhost:8080/geoserver/wms";,
> {
> VIEWPARAMS: layer_three_legs,
> LAYERS : 'RDA2_VIEW_LAYER_THREE',
> transparent: "true",
> singleTile: true,
> format : format
> },
> {
> buffer : 0,
> isBaseLayer : false,
> displayInLayerSwitcher:true
> });
>
> /* setup layer_four */
> layer_four = new OpenLayers.Layer.WMS(
> "Layer 04",
> "http://localhost:8080/geoserver/wms";,
> {
> VIEWPARAMS: layer_four_legs,
> LAYERS : 'RDA2_VIEW_LAYER_FOUR',
> transparent: "true",
> singleTile: true,
> format : format
> },
> {
> buffer : 0,
> isBaseLayer : false,
> displayInLayerSwitcher:true
> });
>
> /* setup layer_five */
> layer_five = new OpenLayers.Layer.WMS(
> "Layer 05",
> "http://localhost:8080/geoserver/wms";,
> {
> VIEWPARAMS: layer_four_five,
> LAYERS : 'RDA2_VIEW_LAYER_FIVE',
> transparent: "true",
> singleTile: true,
> format : format
> },
> {
> buffer : 0,
> isBaseLayer : false,
> displayInLayerSwitcher:true
> });
>
> /* map.addLayers([untiled, tiled ]); */
> map.addLayers([base, layer_five, layer_four, layer_three, layer_two,
> layer_one]);
>
> /* build up all controls */
> map.addControl(new OpenLayers.Control.PanZoomBar(
> {
> position : new OpenLayers.Pixel(2,15)
> }));
> map.addControl(new OpenLayers.Control.Navigation());
> map.addControl(new OpenLayers.Control.LayerSwitcher());
> map.zoomToExtent(bounds);
> }
>
> </script>
>
> --
> Me on Web
> http://dushan888.wordpress.com
> http://www.linkedin.com/pub/dushan-basnayake/18/9a7/8b9
> http://www.twitter.com/Dushi
>
>
>
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