This sample shows how to highlight features in a SceneLayer representing campus buildings. When the SceneLayerView finished updating we loop through all the loaded features and put them in a list. An event listener is added on each list item which zooms to the 3D extent of the feature and highlights it.
To highlight a feature, call the highlight method of the feature's corresponding layerView with the feature or its objectID as parameter.
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// add event listener on each list item
li.addEventListener("click", (event) => {
const target = event.target;
// get objectId of the feature that we previously stored as a data attribute
const objectId = parseInt(target.getAttribute("data-object-id"));
// create an extent query on the layer view that will return the 3D extent of the feature
const queryExtent = new Query({
objectIds: [objectId]
});
campusLayerView.queryExtent(queryExtent).then((result) => {
// zoom to the extent of the feature; we use the expand method as we don't want to zoom very close to it
view.goTo(result.extent.expand(4), { speedFactor: 0.5 });
});
// if any, remove the previous highlights
if (highlight) {
highlight.remove();
}
// highlight the feature with the returned objectId
highlight = campusLayerView.highlight([objectId]);
});
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