Query a feature layer against another feature layer

TimWitt2

Hey everybody,

I am trying to query a point feature layer against a polygon feature layer. In ArcGIS Desktop this is very easy, just go to select by location and then query the point feature layer to see when it intersects with the polygon feature layer.

What is the best approach to do this via ArcGIS Javascript API? I am trying to find an example but the closest I can find is this Select with Feature Layer | ArcGIS API for JavaScript

Is there an example that uses 2 feature layers?

Thanks for any help!

Tim

thejuskambi

You can use two Feature layers instead of one, similar to same example like this

function selectInBuffer(response){   
    var feature;
    var features = response.features;       
    var inBuffer = [];         
   
    //filter out features that are not actually in buffer, since we got all points in the buffer's bounding box
    for (var i = 0; i < features.length; i++) {
        feature = features;
        if(circle.contains(feature.geometry)){
           
            //TODO: if the feature.geometry is point then buffer the point here             
            inBuffer.push(feature.geometry);           
        }         
    }         
   
    var query = new Query();         
    query.geometry =geometryEngine.union(inBuffer);         
   
    featureLayer2.selectFeatures(query, function(results){           
        //TODO: do something with the second layer result         
    });       
}