topic Re: How do you get "Center" Initial Extent? in ArcGIS JavaScript Maps SDK Questions

How do you get "Center" Initial Extent?

melissaGomez — Thu, 30 May 2013 17:57:36 GMT

Hello,

I am trying to figure out how to get the "Center" initial extent vs the xy min and max? I have tried a couple of ways using the following sources, but still am unable to figure it out. Any help would be greating appreciated.

Sources:
http://psstl.esri.com/apps/extenthelper/

http://help.arcgis.com/en/webapps/flexviewer/extenthelper/flexviewer_extenthelper.html

(with this flexviewer/extenthelper, i've tried using the "current mouse coordinates," but not getting the extent.)

I am looking for the "center" initial extent I've attached below:

map = new esri.Map("map", {
          basemap: "streets",
          center: [-98.49946448681641, 29.4205708789947],
          zoom: 10,
          infoWindow: popup

    });

Please help. Thanks..

Re: How do you get "Center" Initial Extent?

ReneRubalcava — Thu, 30 May 2013 21:36:00 GMT

Are you trying to find the center coordinates to use in your map constructor, similar to how the apps you link show the extent?

I've been using this to get my map centers.
http://teczno.com/squares

I could have sworn I saw someone had hosted a modified version of the extenthelper to show the center coordinates, but don't know link. The link above works fine for me.

Re: How do you get "Center" Initial Extent?

VinayBansal — Fri, 31 May 2013 02:44:39 GMT

You can try this...once the map is loaded....
// get current scale of map
var scale = esri.geometry.getScale(map);

//Based on scale get the map extent.
var extent = new esri.geometry.getExtentForScale(map, scale);

topic Re: How do you get "Center" Initial Extent? in ArcGIS JavaScript Maps SDK Questions

How do you get &quot;Center&quot; Initial Extent?

Re: How do you get "Center" Initial Extent?

Re: How do you get "Center" Initial Extent?

How do you get "Center" Initial Extent?