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Javascript 4.x zoomEnd Event / Scale Text

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10-30-2017 04:14 PM
DavidPlume1
Occasional Contributor

Hi

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

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1 Solution

Accepted Solutions
RobertScheitlin__GISP
MVP Emeritus

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. 
});‍‍‍

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6 Replies
RobertScheitlin__GISP
MVP Emeritus

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. 
});‍‍‍
DavidPlume1
Occasional Contributor

Robert,

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

Thanks

David

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DavidPlume1
Occasional Contributor

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

David

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RobertScheitlin__GISP
MVP Emeritus

David,

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

LeoDeng
Frequent Contributor

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

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RobertScheitlin__GISP
MVP Emeritus

Leo,

   You can watch the stationary property.

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