topic ArcGIS Javascript API layerlist trigger action "zoom-to" using view.goTo() not working in ArcGIS JavaScript Maps SDK Questions

ArcGIS Javascript API layerlist trigger action "zoom-to" using view.goTo() not working

JennyHuang3 — Mon, 22 Jul 2019 17:49:45 GMT

Hi all,

Seems like this should be an easy operation but for some reason the view.goTo() is not doing anything at all

Thinking this might be a spatial reference issue (?) but not sure how to fix it...(the online sample code worked for me but the zoom imagery layer's wkid is 4326...)

Additional info:

view.spatialReference's wkid is 102100

event.item.layer's wkid is 102190

Any help is appreciated!! Thank you!! - Jenny

const layerlist = new LayerList({
 view: view,
 container: dom.byId("legend"),
 listItemCreatedFunction: function(event){
 const item = event.item // ListItem class
 if (item.layer.type !== "group"){
 item.actionsSections = [[{
 title: "Zoom To",
 className: "esri-icon-zoom-in-magnifying-glass",
 id: "zoom-to"
 }....
view.when(function(){
 // layer list trigger action:
 layerlist.on("trigger-action", function(event){
 console.log("triggered event", event.item.layer)
 // capture action id:
 let id = event.action.id;
 if (id === "zoom-to"){
 view.goTo(event.item.layer.fullExtent) // not working...
 }....

Re: ArcGIS Javascript API layerlist trigger action "zoom-to" using view.goTo() not working

RobertScheitlin__GISP — Mon, 22 Jul 2019 17:52:03 GMT

Jenny,

You need to project the layer full extent to the maps spatial reference.

Re: ArcGIS Javascript API layerlist trigger action "zoom-to" using view.goTo() not working

JennyHuang3 — Mon, 22 Jul 2019 17:58:53 GMT

Thanks for the quick reply Rob!

that's what i was thinking...tried below but getting Type Error: g is null....

am i even on the right track?

let transformation = projection.getTransformation(event.item.layer.fullExtent.spatialReference, view.spatialReference)
 let projExtent = projection.project(event.item.layer.fullExtent, view.spatialReference, transformation)
 view.goTo(projExtent) // not working...

Re: ArcGIS Javascript API layerlist trigger action "zoom-to" using view.goTo() not working

RobertScheitlin__GISP — Mon, 22 Jul 2019 18:05:47 GMT

Jenny,

That looks fine. Did you call projection.load() earlier in your code?

Re: ArcGIS Javascript API layerlist trigger action "zoom-to" using view.goTo() not working

JennyHuang3 — Mon, 22 Jul 2019 18:11:30 GMT

no lol it's working now.

thanks Rob. much appreciated