topic Re: Refresh MapImageLayer JS API 4.5 in ArcGIS JavaScript Maps SDK Questions

Refresh MapImageLayer JS API 4.5

RodrigoFelga — Wed, 01 Nov 2017 09:54:14 GMT

I have a MapImageLayer with a point sublayer that I insert data outside the API, mt problem is that the newly inserted data is not refreshed until I move the map, how to refresh te MapImageLayer to reflect the changes made outside the API?

Re: Refresh MapImageLayer JS API 4.5

RobertScheitlin__GISP — Wed, 01 Nov 2017 12:33:40 GMT

Rodrigo,

Since there is no such thing as view.reresh or layer refresh or any other method I can find to force a referesh you will have to use a workaround like view.goto. The best way to do this is to get the current view center and add 1 to the X or Y and use view goto with that new point coordinates. This will force a refresh and have minimal effect on the maps extent.

Re: Refresh MapImageLayer JS API 4.5

AndrewLindley — Mon, 06 Nov 2017 21:20:29 GMT

I was having a similar problem and fixed it like this:

view.extent = view.extent;‍

Robert's solution definitely works too, but just wanted to share this if anyone else is having this issue.

Cheers

Re: Refresh MapImageLayer JS API 4.5

AndrewLindley — Mon, 13 Nov 2017 23:20:01 GMT

Just a quick update:

The above method of setting view.extent = view.extent has been unreliable for me, so I'm using Robert's suggested method now as well.

Cheers

Re: Refresh MapImageLayer JS API 4.5

KenBuja — Thu, 14 Dec 2017 21:10:57 GMT

Most layers now can be refreshed in 2D MapViews by setting refreshInterval property or by calling refresh() method on it.

Release notes for 4.6 | ArcGIS API for JavaScript 4.6