[OpenLayers-Users] Conversion of BBox for GetFeature Request

[Jerome A. Wendell]

Gery,

 

Thanks for your quick reply.  I will give your suggestion a try, and see what happens.

 

Thanks again for all of your help.

 

Jerome

 

 

From: Gery . [mailto:gamejihou at hotmail.com] 
Sent: Wednesday, March 06, 2013 4:48 PM
To: <jawendell at digitalmapping.com>
Cc: OpenLayers User List
Subject: Re: [OpenLayers-Users] Conversion of BBox for GetFeature Request

 

Hi Jerome,

 

Not sure here, but seems to me that the problem is the events.register, try this to see what is going on there:

 

myControl.events.register("featureselected", this, function(e) {

                                highlightLayer.addFeatures(e.features);

console.log("THIS HAS BEEN ADDED: " + e.features);

                });

                myControl.events.register("featureunselected", this, function(e) {

                                highlightLayer.removeFeatures(e.features);

console.log("THIS HAS BEEN DELETED: " + e.features);

 

Try some variants inside the parentheses of each console.log call.

 

Sent from my iBath


On Mar 6, 2013, at 22:38, "Jerome A. Wendell" <jawendell at digitalmapping.com> wrote:

I was having a difficult time getting the code to work for a box selection, so I decided to set it up for selection on click.  The click selection actually works better for my particular situation.  The control is now returning features, but there seems to be a problem with adding them to the highlight layer.  The code that I am using is below:

var highlightLayer = new OpenLayers.Layer.Vector("Highlighted Features", {

                                                styleMap: myStyles,

                                                displayInLayerSwitcher: false,

                                                isBaseLayer: false

                                                }

                                );

                                OpenLayers.Control.myGetFeature = OpenLayers.Class(OpenLayers.Control.GetFeature,{

                                                               selectClick: function(evt){

                                                                               var layerSRSgeo = new OpenLayers.Projection('EPSG:4326');

                                                                                var baseSRSmer = new OpenLayers.Projection('EPSG:900913');

                                                                               var bounds = this.pixelToBounds(evt.xy).transform(baseSRSmer,layerSRSgeo);

                                                                               this.request(bounds, {single: this.single});

                                                               },

                                                    CLASS_NAME: 'OpenLayers.Control.myGetFeature'

                                });

                var myControl = new OpenLayers.Control.myGetFeature({

                                protocol: OpenLayers.Protocol.WFS.fromWMSLayer(mylayer),

                                                box: false,

                                                hover: false,

                                                maxFeatures: 40,

                                                clickTolerance: 1

                });

                myControl.events.register("featureselected", this, function(e) {

                                highlightLayer.addFeatures(e.features);

                });

                myControl.events.register("featureunselected", this, function(e) {

                                highlightLayer.removeFeatures(e.features);

                });

                map.addControl(myControl);

                myControl.activate();

 

The error that I now get is below:

<image001.png>

I have been working on troubleshooting this issue for quite a while and have been searching for an answer.  So far I have been unsuccessful in getting the selected features added to the highlight layer.

 

Any suggestions that you might have are greatly appreciated.

 

Thanks.

 

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