identify

[ForrestLin]

I use identify to identify feature when click on map:

import * as identify from "@arcgis/core/rest/identify.js";

view.on("click", (event: ViewClickEvent) => {

     const params = new IdentifyParameters({

                   geometry: event.mapPoint

                   // .....

             });

      identify.identify(url, params);

});

Is it possible to know a feature that is already identified, so that identify.identify won't be called when clicked on it again?

When I click on it again, I want show it's popup.

Thanks.

Forrest

[ForrestLin · Accepted solution]

I got a solution: use hitTest

view.on("click", (event: ViewClickEvent) => {

     view.hitTest(event).then(({ results }) => {

          if (results.length == 0) {

               const params = new IdentifyParameters({

                   geometry: event.mapPoint

                   // .....

             });

              identify.identify(url, params);

           }

        });

});