topic goTo issues with zooming in ArcGIS JavaScript Maps SDK Questions

goTo issues with zooming

Olivier_MOUGEL — Wed, 09 Feb 2022 07:15:13 GMT

I try to understand the folowing error :
TypeError: Cannot read properties of null (reading 'targetGeometry')
in my code.
I just define a featurelayer :

const secteur = new FeatureLayer({

url: "https://sig.gironde.fr/arcgis/rest/services/Colleges_rentree_2022/FeatureServer/1",

title:"Secteurs des collèges",

definitionExpression: expr,

popupTemplate: popup,

labelingInfo: [labelClass]

});

map.add(secteur);

secteur.when(() => {

zoomToLayer(secteur);

});

and this function :

function zoomToLayer(layer) {

return layer.queryExtent().then((response) => {

view.goTo(response.extent)

});

}

The definition expression retrieves a single polygon in the view without zooming on it.
Where have I to define a target geometry ?
Thank's for some help

Re: goTo issues with zooming

ReneRubalcava — Wed, 09 Feb 2022 16:05:12 GMT

I am going to guess that your basemap is a different spatial reference than your service. When you query against the service, the SR will be the original SR of the service. You can. request the geometries to be converted to match your map like this.

function zoomToLayer(layer) { // create query from layer const query = layer.createQuery(); // ask for SR to match the View query.outSpatialReference = view.spatialReference; return layer.queryExtent(query).then((response) => { view.goTo(response.extent) }); }

Re: goTo issues with zooming

Olivier_MOUGEL — Thu, 10 Feb 2022 08:02:27 GMT

Thank's a lot. It's true I use a local SR for my feature layer
Have a nice day