getSource() not a function

[steve...@t1cg.com]

I have defined my own featureOverlay for the purposes of highlighting any polygon layer I hover over.  When I try to make this work with featureOverlay.getSource(), I get the error featureOverlay.getSource() is not a function.  Below is the code where I define my feature Overlay, as well as the functionality for adding the featureOverlay(which is essentially a new Overlay with designated highlight details.  

const featureOverlay = new Overlay({

            source: new VectorSource(),

            zIndex: 0,

            map: map,

            style: new ol.style.Style({

                stroke: new ol.style.Stroke({

                    color: [155, 155, 0],

                    width: 3.5

                }),

                fill: new ol.style.Fill({

                    color: 'rgba(0, 0, 0, 0.8)'

                })

            })

        });

    map.on('pointermove', function(e){

      if (cursorSet) return;

         if (e.dragging) return;

         var pixel = map.getEventPixel(e.originalEvent);

         var hit = map.hasFeatureAtPixel(pixel);

         // console.log("Place break point here")

         if(hit) {

           var feature = map.forEachFeatureAtPixel(e.pixel,function(feature) {

                    if (clicked && feature) {

                        e.map.getTargetElement().style.cursor = hit ? 'pointer' : '';

                        cursorSet = true;

                        return;

                        console.log("clicked and Feature");

                    }

                    featureToRemove = feature;

                    if (!clicked && feature !== highlight) {

                        if (highlight) {

                            featureOverlay.getSource().removeFeature(highlight);

                        }

                        if (!clicked && feature) {

                            featureOverlay.getSource().addFeature(feature);

                        }

                        console.log("Hit me man")

                        highlight = feature;

                    }

                });

            } else {

                console.log("do something ELSE")

            }

  });

[Richard Greenwood]

"source" is not listed as a property of ol.Overlay http://openlayers.org/en/latest/apidoc/ol.Overlay.html

The developers prefer that questions are posted on stackoverflow https://stackoverflow.com/questions/tagged/openlayers rather than this list.

Rich

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Richard W. Greenwood, PLS
www.greenwoodmap.com