topic Re: Javascript 4.x zoomEnd Event / Scale Text in ArcGIS JavaScript Maps SDK Questions

Javascript 4.x zoomEnd Event / Scale Text

DavidPlume1 — Mon, 30 Oct 2017 23:14:19 GMT

I'm trying to generate scale text (e.g. 1/100,000 ) in the JS 4.5 API. I can find MapView.scale but have not been able to locate anything like a "zoomEnd" event.

In 4.x API -- where might I find and event at the end zooming in our out please?

Thanks

David

Re: Javascript 4.x zoomEnd Event / Scale Text

RobertScheitlin__GISP — Sun, 12 Dec 2021 05:20:26 GMT

David,

In 4.x you need to dismiss the old ideas of having events for everything and you need to get use to watching properties.

view.watch('extent', function(){
  //do something because the extent has changed. 
});‍‍‍‍‍‍

Re: Javascript 4.x zoomEnd Event / Scale Text

DavidPlume1 — Tue, 31 Oct 2017 00:00:00 GMT

Robert,

As usual your very helpful suggestions are welcome -- I'll check it out!

Thanks

David

Re: Javascript 4.x zoomEnd Event / Scale Text

DavidPlume1 — Tue, 31 Oct 2017 15:50:24 GMT

Robert -- very nice, I'm watching now!

David

Re: Javascript 4.x zoomEnd Event / Scale Text

RobertScheitlin__GISP — Tue, 31 Oct 2017 16:02:10 GMT

David,

FYI, you should mark the reply that answered your question as the correct answer so that people can find the answer easier.

Re: Javascript 4.x zoomEnd Event / Scale Text

LeoDeng — Thu, 17 May 2018 03:32:19 GMT

Hi @Robert,

When I watch the extent property, there will be lots of triggers when zoom the map only once.

My question is:

How to determine the zoom event is end?

Thanks,

Leo

Re: Javascript 4.x zoomEnd Event / Scale Text

RobertScheitlin__GISP — Thu, 17 May 2018 13:09:38 GMT

Leo,

You can watch the stationary property.