topic Re: Add listeners to objects created by sketch in ArcGIS JavaScript Maps SDK Questions

Add listeners to objects created by sketch

Aeseir — Wed, 01 Jun 2022 10:28:48 GMT

I am using Sketch widget to reduce overhead on some items and it mostly works (mostly).

This is how i set it up:

let sketch = new Sketch({ availableCreateTools: ["point", "polyline", "polygon"], layer: this.graphicsLayer, view: this.view, creationMode: "single", defaultUpdateOptions: { enableRotation: false, enableScaling: false, enableZ: false, toggleToolOnClick: false, }, visibleElements: { settingsMenu: false, selectionTools: { "lasso-selection": false, "rectangle-selection": false } } });

This results in me being able to create polygons which is great.

Question is how do i attach listeners to these shapes, so that on click it triggers a specific function/code?

Re: Add listeners to objects created by sketch

AdrianaPaese — Wed, 01 Jun 2022 10:59:50 GMT

I suspect the answer from @BenElan to the post

“SketchViewModel methods turning off layerList toogle” in the Calcite Design System Questions

may help you

Re: Add listeners to objects created by sketch

Aeseir — Wed, 01 Jun 2022 11:18:04 GMT

How does this help attach listeners to shapes created through Sketch widget?

Re: Add listeners to objects created by sketch

AdrianaPaese — Wed, 01 Jun 2022 11:37:16 GMT

I don´t know which function you are trying to trigger but in the example below, the output Sketch geometry is used as a parameter (sketchEvent.graphics[0].geometry) to a query..

sketch.on("update", (sketchEvent) => {

const sketck_action_id = sketckEvent.action.id;

if (sketchEvent.state === "start") {

queryFeatureLayer(sketchEvent.graphics[0].geometry);

}

if (sketchEvent.state === "complete"){

graphicsLayer.remove(sketchEvent.graphics[0]);

if (sketchEvent.toolEventInfo && (sketchEvent.toolEventInfo.type === "scale-stop" || sketchEvent.toolEventInfo.type === "reshape-stop" || sketchEvent.toolEventInfo.type === "move-stop")) {

queryFeatureLayer(sketchEvent.graphics[0].geometry);

}

});

Re: Add listeners to objects created by sketch

Aeseir — Wed, 01 Jun 2022 11:42:36 GMT

Sorry i might not be clear with what i am trying to achieve.

Lets assume i have a bunch of graphics on the map, in this case they were added in by Sketch.

Is it possible to attach a listener to each graphic, so that when clicked on it alerts("hello world").

I am fairly new to ArcgJS and the documentation is not as clear as i am used to.

Re: Add listeners to objects created by sketch

BenElan — Wed, 01 Jun 2022 16:27:37 GMT

The MapView's hitTest method is what you're looking for, here is a sample.