topic Re: Overview map not redrawing after pan in ArcGIS JavaScript Maps SDK Questions

Overview map not redrawing after pan

mdonnelly — Fri, 26 Nov 2010 04:52:47 GMT

Hi,

Has anyone had the problem where the overview map does not redraw after panning within it?

ie, I click on the overview map and then drag the map to a new position. My larger base map redraws fine but the overview map does not. It also does not redraw the overview map if I minimise and then open it.

I've taken the suggestion of another forum posting and created a instance of the base map to be consumed by the overview map but that doesn't seem to make any difference. Any ideas?

Mark

Re: Overview map not redrawing after pan

mdonnelly — Sun, 28 Nov 2010 21:17:33 GMT

OK,

This looks like a known problem as described in this thread:

http://forums.arcgis.com/threads/10033-Overview-map-does-not-show-contents-until-after-view-extent-changed

Re: Overview map not redrawing after pan

Venkata_RaoTammineni — Mon, 29 Nov 2010 04:49:58 GMT

hi,

There are some issues might cause ...
1) Please Coordinate system...is your data is projected ?
2) Overview map all settings are correct ?

there are some solutions may help you...

1) on Page_Load

Refresh your overview map

OverviewMap.Refresh();

2) add on page_load or OnPreRender

OverviewMap1.Extent = Map1.Extent;

Above i have tested perfectly working for me...Please check any overview map configuration issues.

Thanks and Regards,

Venkat Tammineni

Re: Overview map not redrawing after pan

HugoAhlenius — Mon, 29 Nov 2010 10:02:20 GMT

I had an issue with this, and managed to work around it by attaching a "onPanEnd" event to my main map to trigger a _syncOverviewMap() in the ov map...

Re: Overview map not redrawing after pan

Venkata_RaoTammineni — Mon, 29 Nov 2010 11:04:40 GMT

hi,

I have tested in IE 7 too.. it working fine for me...is your Overviewmap is placed in updatepanel ?

Thanks and Regards

Venkat

Re: Overview map not redrawing after pan

DominickCisson — Thu, 06 Jan 2011 20:45:47 GMT

I had an issue with this, and managed to work around it by attaching a "onPanEnd" event to my main map to trigger a _syncOverviewMap() in the ov map...

What is a "_syncOverviewMap()"? Is is a method that can be called on the overview map? If so, it's not exposed in the API documentation. Do you have a code snippet that demonstrates this in action?

Thanks!

Re: Overview map not redrawing after pan

HugoAhlenius — Tue, 11 Jan 2011 07:12:09 GMT

Actually I didn't check if that was in the API, that was a method that I saw exposed in FireBug... it may be an undocumented method, and maybe should be avoided - is there an alternative way?