topic Re: Set overview map extent in ArcGIS JavaScript Maps SDK Questions

Set overview map extent

Udaya_BhaskerCheerala — Mon, 25 Mar 2013 17:39:48 GMT

Hi All,

I'd like to add an overview map to my map but in all of the samples using overview maps that I've seen, the overview map pans and zooms (albeit at the specification ratio compared to the main map). I don't want this behavior. Is it possible to "lock" the background of the overview map to a specified extent and have just the main map's map extent move around?

I want my overview map to show the full extent of my State Layer and just have the representation of the main map's map extent move around.

We are using Javascript API 3.1

Thanks,
-U

Re: Set overview map extent

Udaya_BhaskerCheerala — Wed, 27 Mar 2013 08:39:15 GMT

Anybody found solution?

Thanks,
-U

Hi All,

I'd like to add an overview map to my map but in all of the samples using overview maps that I've seen, the overview map pans and zooms (albeit at the specification ratio compared to the main map). I don't want this behavior. Is it possible to "lock" the background of the overview map to a specified extent and have just the main map's map extent move around?

I want my overview map to show the full extent of my State Layer and just have the representation of the main map's map extent move around.

We are using Javascript API 3.1

Thanks,
-U

Re: Set overview map extent

DavideLimosani — Wed, 27 Mar 2013 11:10:01 GMT

You can't get this behaviour with the OverviewMap widget.

I think you should create a second map, remove the zoom slider, disable navigation and in an 'OnExtentChange' event of the main map create an extent graphic on the second one.

Re: Set overview map extent

ManojrajTeli — Sat, 11 Dec 2021 06:45:36 GMT

You can do something like this

 var initExtent = new esri.geometry.Extent(-12516666.18100186, -14473454.10510185, 5059768.712762767, 4075259.788449963, new esri.SpatialReference({ wkid: 102100 }));
          overviewMapDijit.map.setExtent(esri.geometry.geographicToWebMercator(initExtent));

or you can specify the lods for the map. I tried on sample example and it worked but did not get it correct extent but it should definetly work when you specify correct extent.