[OpenLayers-Users] delete layers

[eider at fh-bingen.de]

map.removeLayer(gml_new,true);  //THIS DOESN'T WORK

cannot work as gml_new will always be null

gml_new is locally defined in the else-branch of this if-switch

make gml_new global

Quoting "Luis Ortiz (lortiz)" <lortiz at compegps.com>:

> Hi,
>
> I want to delete/destroy/remove a layer previously loaded in a zoom
> event I'm trying this method, but it seems to don't work:
>
> var zoomed =false;
> function mapEvent(event) {
>        var EPSG4326 = new OpenLayers.Projection("EPSG:4326");
>     var EPSG900913 = new OpenLayers.Projection("EPSG:900913");
>     var bounds = map.getExtent();
>     bounds = bounds.transform(EPSG900913, EPSG4326);
>
>     if (map.zoom==8) {
>         zoomed = true;
>         link = "http://localhost/getmap.php?bbox=" + bounds.toBBOX();
>         if (zoomed) {
>              map.removeLayer(gml_new,true);  //THIS DOESN'T WORK
>              zoomed = false;
>         } else {
>             var gml_new = new OpenLayers.Layer.GML("ZONE", link,
> {format: OpenLayers.Format.GeoJSON, projection: map.displayProjection,
> styleMap : aStyleMap });
>             map.addLayer(gml_new);
>         }
>     }
> }
>
>
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