topic two maps in app - not overview in ArcGIS JavaScript Maps SDK Questions

two maps in app - not overview

deleted-user-VeZur_n9o0OZ — Fri, 14 Oct 2011 11:10:32 GMT

Hi all,

I'm writing an app which requires two seperate maps. They need to display difference featurelayers but be responsive to changes in extent to one another. I've managed to create two basic maps and add a baselayer to both. However, I only have control over the second map i.e if i click and pan the left hand map - the right hand map moves. Can i pass control to a map depending on where I've clicked? In the overview map sample you are not able to do this to the overview map.

Thanks,
James

Re: two maps in app - not overview

HemingZhu — Fri, 14 Oct 2011 13:03:50 GMT

Hi all,

I'm writing an app which requires two seperate maps. They need to display difference featurelayers but be responsive to changes in extent to one another. I've managed to create two basic maps and add a baselayer to both. However, I only have control over the second map i.e if i click and pan the left hand map - the right hand map moves. Can i pass control to a map depending on where I've clicked? In the overview map sample you are not able to do this to the overview map.

Thanks,
James

I think a feasible way to achieve your goal is to activate and synchronize both map's OnExtentChange event and make sure the two map have the same extent all the time.

Re: two maps in app - not overview

derekswingley1 — Fri, 14 Oct 2011 14:34:23 GMT

The "Compare Web Maps" template on arcgis.com does this, here's an example: http://apps.arcgis.com/hosted/Compare/Configure/index.html?webmap=ce4cbe1d06e2484284ffd692dfa62545

Make sure you check on "scale" and "location" under synchronize maps near the bottom of the page.

Re: two maps in app - not overview

deleted-user-VeZur_n9o0OZ — Mon, 24 Oct 2011 08:35:07 GMT

Derek thanks for pointing me towards that template. It has all the functionality and more that I need in my app. I have dowloaded the source and tried to take the pieces of code i need. I've noticed in my left hand map my basemap does not refresh when I navigate but my operational layer does. Has anyone observed that behavoir?

Thanks,
James

Re: two maps in app - not overview

deleted-user-VeZur_n9o0OZ — Mon, 24 Oct 2011 09:14:04 GMT

Derek,

As per my post here:http://forums.arcgis.com/threads/33051-How-to-refresh-map

I was able to resolve the issue by creating two seperate basemap objects rather than adding the same one to both maps.

Thanks,
James