Toby my man! You are a genius. I can't tell you how long I've been looking for this :-D. I looked over and over on the docs and I just could not put it together. This worked like a charm!
I can't thank you enough for getting me out of this jam. Thanks Miguel From: Tobias Reinicke [mailto:[email protected]] Sent: Wednesday, October 31, 2012 7:23 AM To: miguel Cc: [email protected] Subject: Re: [OpenLayers-Users] How to remove vector layer properly or just peieces of a vector layer? Hi Miguel, You'll have to use the map getlayersby function to actually grab the layer. so http://dev.openlayers.org/docs/files/OpenLayers/Map-js.html#OpenLayers.Map.g etLayersByName so something like (untested) var myLayer = map.getLayersByName('LineLayer'); myLayer[0].destroy(); getLayersByName returns an array, and as long as you only have one layer called "LineLayer" you can use the [0] (first) entry of that array. Give that a go. Toby On 31 October 2012 11:19, miguel <[email protected]> wrote: Hi guys I've been racking my head on how to remove just the vector layer from my map. Below is my code I have a function call killLayer(), but it does not work at all I have try different variations. So I just need to understand if I add a layer in my init function, how can I get a reference to that layer to remove later on from another function. In this case my vector layer. I would like to remove it and just keep the base layer. Any help would be immensely appreciated. Miguel My Code: var map; var lineLayer = new OpenLayers.Layer.Vector("LineLayer"); var mapBounds = new OpenLayers.Bounds( 0.0, -906.0, 800.0, 0.0); var mapMinZoom = 0; var mapMaxZoom = 7; // avoid pink tiles OpenLayers.IMAGE_RELOAD_ATTEMPTS = 3; OpenLayers.Util.onImageLoadErrorColor = "transparent"; function init(){ var navigation_control = new OpenLayers.Control.Navigation({}); var controls_array = [ navigation_control, new OpenLayers.Control.PanZoomBar({}), new OpenLayers.Control.LayerSwitcher({}), new OpenLayers.Control.Permalink(), new OpenLayers.Control.MousePosition({}) ]; var options = { controls: [], maxExtent: new OpenLayers.Bounds( 0.0, -906.0, 800.0, 0.0 ), maxResolution: 4.000000, numZoomLevels: 8 }; //{controls: controls_array} map = new OpenLayers.Map('map', options ); ; //tile map service TMS stands for tile map service. var layer = new OpenLayers.Layer.TMS( "TMS Layer","", { url: '', serviceVersion: '.', layername: '.', alpha: true, type: 'png', getURL: overlay_getTileURL }); map.addLayer(layer); map.zoomToExtent( mapBounds ); //create the new layer vector layer which includes all the drawings. /*here im addding to lines separate line segments.*/ map.addLayer(lineLayer); var points = new Array( new OpenLayers.Geometry.Point(56.0000, -244) , //x and y cordinate of first point new OpenLayers.Geometry.Point(368,-248) //x and y cordinate of the second point ); var second_segment = new Array( new OpenLayers.Geometry.Point(480,-230), //x and y cordinate of first point new OpenLayers.Geometry.Point(668,-250) //x and y cordinate of first point ); var line = new OpenLayers.Geometry.LineString(points); var line2 = new OpenLayers.Geometry.LineString(second_segment); var style={ strokeColor: '#0000ff', strokeOpacity: 0.5, strokeWidth: 6}; var lineFeature = new OpenLayers.Feature.Vector(line, null, style); var lineFeatureN = new OpenLayers.Feature.Vector(line2, null, style); lineLayer.addFeatures([lineFeature]); lineLayer.addFeatures([lineFeatureN]); map.addControl(new OpenLayers.Control.PanZoomBar()); map.addControl(new OpenLayers.Control.MousePosition()); map.addControl(new OpenLayers.Control.MouseDefaults()); map.addControl(new OpenLayers.Control.KeyboardDefaults()); } function killLayer() { //map.removeLayer("LineLayer"); //lineLayer.destroy(); //map.destroy("LineLayer"); lineLayer.removeFeatures(lineFeature); } _______________________________________________ Users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/openlayers-users
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