CODEWITHSUNDEEP
openlayersgeojson
Russell
Russell

Reputation: 2812

Retrieving GeoJson properties from OpenLayers.Layer.Vector object

After looking at dev.openlayers.org/apidocs/files/OpenLayers/Layer/Vector-js.htm - it isn't clear how to extract the properties value from the geojson example below, using the following javascript:

{ "type": "FeatureCollection",
    "features": [
    { "type": "Feature",
        "geometry":
            {   "type": "MultiPoint",
                "coordinates": [[[0,0]]]   
            },  
        "properties": {"test" : "this"}
        }   
    ]   
 }


layer = new OpenLayers.Layer.Vector("GML", {
           strategies: [new OpenLayers.Strategy.Fixed()],
           protocol: new OpenLayers.Protocol.HTTP({
             url: "some_url",
             params: {...},
             format: new OpenLayers.Format.GeoJSON()
           }),
        });

The way I understand it so far is that layer is an object that has contains "properties" as an attribute of the feature type. But not sure how to access it.

Any help would be appreciated. Thanks in advance!

Upvotes: 0

Views: 4209

Answers (1)

igorti
igorti

Reputation: 3856

It's features of the layer that have properties from geojson file, not layer itself. You can access them like this:

for(var i=0; i < layer.features.length; i++){
  console.log(layer.features[i].attributes.test);
}

So, property attributes of feature object will have all the properties.

Upvotes: 2

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