Toggling visibility of KML layer

BetsySchenck-Gardner — Wed, 04 Jan 2012 20:20:32 GMT

Has anyone had any success with toggling the visibility of a KML layer? I can get a KML layer to display on a map with no problem. I've been able to show and hide other layers such as WMS layers or dynamic layers with no problem. But when I try to hide the KML layer, it will not remove itself from the map and all subsequent calls to add other layers are stopped. Here is a snippet of my code for showing and hiding my KML layer:

if (modis == "true") {
if (mapLayers.length == 0) {
    var kmlUrl = "http://www.ncddc.noaa.gov/website/kmls/A20113632012004.1KM.GCOOS.7DAY.L3D.OCI.png.kml";
    var lyr = new esri.layers.KMLLayer(kmlUrl);
    lyr.name = "MODIS";
    mapLayers.push(lyr);
    map.addLayer(lyr);
}
else {
    var foundIt = false;
    var lyrID;
    for (i=0;i<mapLayers.length;i++) {
      if (mapLayers.name.indexOf("MODIS") != -1) {
        foundIt = true;
        lyrID = i;
      }
    }
    if (!foundIt) {
      var kmlUrl = "http://www.ncddc.noaa.gov/website/kmls/A20113632012004.1KM.GCOOS.7DAY.L3D.OCI.png.kml";
      var lyr = new esri.layers.KMLLayer(kmlUrl);
      lyr.name = "MODIS";
      mapLayers.push(lyr);
      map.addLayer(lyr);
    }
    else {
      mapLayers[lyrID].show();
    }
}
}
else {
if (mapLayers.length != 0) {
    for (i=0;i<mapLayers.length;i++) {
      if (mapLayers.name.indexOf("MODIS") != -1) {
        mapLayers.hide();
      }
    }
}
}

Any help would be greatly appreciated. TIA.

Re: Toggling visibility of KML layer

BetsySchenck-Gardner — Fri, 06 Jan 2012 12:24:23 GMT

I was able to answer my own question. Instead of creating a separate array in which I was keeping the name of the layer, I used .id of the Layer class to save the name and then used the getLayer function to pull the ids back out. Once I did that, I was able to turn on and off any kml layers on the map.

topic Toggling visibility of KML layer in ArcGIS JavaScript Maps SDK Questions

Toggling visibility of KML layer

Re: Toggling visibility of KML layer