Well, I'm cloning them. It would be your second approach except instead
of [LAY1, LAY2, LAY3] I would use [LAY1.clone(), LAY2.clone(),
LAY3.clone()].
The LAY* variables being undefined must be some issue with your
particular code, I think. Like, you define them in some scope that is
not accessible in the place where you're trying to use them. If your
overview map code immediately follows the map creation code, I cannot
think of what could be the problem.
Janis
On 2011.05.23. 11:16, Sukuchha Shrestha wrote:
Hello Janis,
Thanks for your input, but i am having some problems to add layers in my
OverviewMap.
I have three layers:
var LAY1 = new OpenLayers.Layer.OSM("OpenStreetMap_Mapnik");
var LAY2 = new OpenLayers.Layer.Google("Google Hybrid",
{type: G_HYBRID_MAP, sphericalMercator: true, numZoomLevels: 20});
var LAY3 = new OpenLayers.Layer.Google("Google Terrain",
{type: G_PHYSICAL_MAP, sphericalMercator: true, numZoomLevels: 20 });
//map.addLayers([osmarenderLayer, mapnikLayer, ghyb, gter]);
Now how would i add these layers in OverviewMap.
1)I have tried to pass names of the layers ( first parameters of layers
constructor as you said);
var overviewMapControl = new OpenLayers.Control.OverviewMap();
var options = {layers: [OpenStreetMap_Mapnik,Google Hybrid,Google Terrain]}
map.addControl(overviewMapControl,options);
Doing this it returns this;
px.clone is not a function
if(px!=null){this.position=px.clone();}
2) When i tried to pass layers ID.
var overviewMapControl = new OpenLayers.Control.OverviewMap();
var options = {layers: [LAY1,LAY2,LAY3]}
map.addControl(overviewMapControl,options);
Doing this it returns this:
Lay1 is not defined !!
Please, give me suggestions what is the write way, and why it is not working.
Have a nive day.
I'm doing it like this:
map = new OpenLayers.Map (...);
overviewMapControl = new OpenLayers.Control.OverviewMap (...);
// Update the base layer of the overview map along with the base
layer of the main map.
map.events.register ('changebaselayer', this, function (layer,
properties)
{
if (overviewMapControl.ovmap) {
overviewMapControl.ovmap.setBaseLayer
(overviewMapControl.ovmap.getLayersByName (layer.layer.name)[0]);
}
// else the overview map is not drawn yet.
});
You must make sure that you've added to the overview map all the same
layers you added to the big map, and that they have unique names (the
first parameter for a layer constructor).
Janis
On 2011.05.19. 18:52, Sukuchha Shrestha wrote:
>/ Hello nice people,
/>/
/>/ I want to synchronize the layerswitcher and overview map. I mean when
/>/ i select my layerA in layerswitcher, the overview map should display
/>/ layerA and similarly when i select my layerB in layerswitcher the
/>/ overview map should display layerB.
/>/
/>/ Any idea how to do it !
/>/
/>/ thanks
/>/ sukuchha
/>/
/>
_______________________________________________
Users mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/openlayers-users
