First, the process involves accessing all Vector layers, checking if they are visible and retrieving their names. After that, we need to clear any applied filters on those layers and refresh them.
Below is a snippet of the code:
var mLayers = map.getLayersByClass("OpenLayers.Layer.Vector");
for(var a = 0; a < mLayers.length; a++ ){
if(mLayers[a].getVisibility()){
var layerName = mLayers[a].name;
var vlayer = map.getLayersByName(layerName);
//console.log(vlayer);
vlayer.filter = null;
vlayer.refresh({
force: true
});
}
};
However, an error is thrown:
Uncaught TypeError: vlayer.refresh is not a function
I've observed that using a specific variable assigned to the vector layer allows the refresh function to work properly.
For instance:
var vector_bldg =new OpenLayers.Layer.Vector("Buildings", {
...
}
Then
vector_bldg .filter = null;
vector_bldg .refresh({
force: true
});