topic Re: Overview Map - Initial Extent in ArcGIS Viewer for Flex Questions

Overview Map - Initial Extent

EricVenden — Thu, 12 May 2011 13:16:59 GMT

I am using the 2.3.1 version of the Flex Viewer and would like to change the behavior, if possible, of the Overview Map. I have attached an image of the initial extent of the Overview map - it is zoomed out much further than I would like. I also have attached an image of this Map Service rendered using the Javascript API. The extent is as it "should" be. Is there a way to limit the initial extent of the Overview Map?
Thank you
Eric V
Gurnee, IL

Re: Overview Map - Initial Extent

Anonymous User — Fri, 13 May 2011 13:58:01 GMT

Original User: jgeisen

Eric,

Have you modified your OverviewMap config file at all? Are you using the same map service as in your main map?

Jay

Re: Overview Map - Initial Extent

EricVenden — Fri, 13 May 2011 14:06:55 GMT

Hi Jay,
I have modified the config...I have a separate map service for the Overview map. But I believe I this is a non-issue as I had tweaked the code in v2.2 to get the Overview map to work properly (there was a bug)...it appears I had the added code moved over to the 2.3.1 viewer...this was causing the issue. When I copied the "new" swf file from 2.3.1, it appears to be working as it should
Thanks
Eric

Re: Overview Map - Initial Extent

Anonymous User — Fri, 13 May 2011 14:08:00 GMT

Original User: jgeisen

Sounds good. Glad you got it working.

Re: Overview Map - Initial Extent

StuartBlumberg — Mon, 16 May 2011 12:53:16 GMT

I've been having the same problem. I have a seperate map service for the overview map and I am having the same behavior described above. I used this service in my 1.3 Flexviewer and it worked fine. I started all over with the 2.3.1 API, plugged in my service in the config however the initial extent is zoomed out. I would like the overview map to stay at the full extent and never zoom in/out. Is this possible?

Re: Overview Map - Initial Extent

Anonymous User — Mon, 16 May 2011 15:38:25 GMT

Original User: ericv

Stuart,
Is the overview map service tiled or dynamic?

In my OverviewMap.xml I have the following:

type="dynamic"
url="http://gis-srv3.village.gurnee.il.us/ArcGIS/rest/services/OverviewMap/MapServer"/>

Eric

Re: Overview Map - Initial Extent

StuartBlumberg — Mon, 16 May 2011 16:06:22 GMT

The service is not cached and the type="dynamic"
I have tried variations of everything, with cached services as "dynamic" and "tiled" and non-cached services as "dynamic" and "tiled" and I still can't seem to get the behavior I'm looking for. We're looking for a static map showing the entire city, as you zoom into the main map, a red rectangle will show where you are in the static overview map. Basically I'm trying to get it where the overview map doesn't move or zoom. Thanks.

Re: Overview Map - Initial Extent

Anonymous User — Mon, 16 May 2011 16:48:08 GMT

Original User: ericv

Stuart,
What you are looking for is the behavior I'm experiencing. I did not customize the widget with the 2.3.1 version..it's out-of-the box. Sorry I can't help you out. You said this map service worked in v1.3 of the viewer? Are you using ArcGIS 10? Maybe recreate the mxd/msd.

Re: Overview Map - Initial Extent

StuartBlumberg — Mon, 16 May 2011 18:38:46 GMT

Hey Eric,

Are you experiencing the behavior I am looking for on accident? Are you showing a static overview map that doesn't zoom or move? Is your overview map a cached service? I tried recreating my service in 10 and I still have the same problem. Thanks.

Re: Overview Map - Initial Extent

Anonymous User — Mon, 16 May 2011 19:40:51 GMT

Original User: ericv

Stuart,
I moved the overview widget from my 2.2 viewer. In the 2.2 version, there was a bug when defining a different overview map service, so I had modified the code. When I started using 2.3 & 2.3.1, I noticed that the overview map did not work, so I messed around with caching the service, etc. When the service was cached, the overview map would zoom in/out. If the map was not cached, the overview map was zoomed WAY out - too far. I then remembered the issue was supposed to have been fixed in 2.3, etc...so I deleted the cache and copied in the fresh swf and xml from the 2.3.1 viewer. Now the overview map is behaving properly.
Is this consistent with what you are seeing?
Eric

Re: Overview Map - Initial Extent

StuartBlumberg — Mon, 16 May 2011 19:51:16 GMT

Yes, this is pretty much what I'm experiencing, the map is zoomed way too far out. When you say, "the overview map is beahving properly" do you mean it is a static image like I want mine?

Re: Overview Map - Initial Extent

Anonymous User — Tue, 17 May 2011 10:36:47 GMT

Original User: ericv

Stuart,
Yes, I have a static image that shows the current display window in a red box. Have you looked at the extents of the layers in your mxd?
Eric

Re: Overview Map - Initial Extent

StuartBlumberg — Thu, 19 May 2011 14:55:16 GMT

Eric,

What should I be looking for when I am checking the extents? I am using a dynamic service like yours, how does the overview map widget know what extents to start at? Do I need to set this somewhere in the MXD? Thanks for your help and patience!

Stuart

Re: Overview Map - Initial Extent

Anonymous User — Thu, 19 May 2011 15:16:48 GMT

Original User: ericv

Eric,

What should I be looking for when I am checking the extents? I am using a dynamic service like yours, how does the overview map widget know what extents to start at? Do I need to set this somewhere in the MXD? Thanks for your help and patience!

Stuart

Stuart,
I checked the extents of my mxd's by going to the Rest services directory at: http://{server name}/ArcGIS/rest/services

You can click on a service and then view the extents there. i did this when I was working through my issue - just to see if the overview was zoomed way out due to a goofy extent. This was not the case....
Eric

Re: Overview Map - Initial Extent

StuartBlumberg — Thu, 19 May 2011 15:30:05 GMT

The extents seem to be fine, nothing weird going on there. You just used the out-of-the-box code from the 2.3.1 version, correct? Thats what I'm using along with a dynamic map service.

Re: Overview Map - Initial Extent

Anonymous User — Thu, 19 May 2011 15:55:29 GMT

Original User: ericv

Yup..out of the box...How about clearing Rest cache? Browser cache?

Re: Overview Map - Initial Extent

StuartBlumberg — Thu, 19 May 2011 16:12:20 GMT

Tried all that, no luck. Probably something really simple I am missing. I am going to try repost this in a new thread and see what happens. Thanks for your help!

Re: Overview Map - Initial Extent

Anonymous User — Thu, 19 May 2011 16:58:42 GMT

Original User: ericv

Sounds good Stuart...sorry I couldn't help...
I've pasted in my config for the Overview widget......sounds like I did experience the same issue you are having, but mine has somehow cleared up...I'm keeping my fingers crossed.

<?xml version="1.0" ?>
<configuration>
    
    <initialstate>closed</initialstate>
    
    <layer
            type="dynamic"
            url="http://gis-srv3.village.gurnee.il.us/ArcGIS/rest/services/OverviewMap/MapServer"/>

</configuration>

Re: Overview Map - Initial Extent

StuartBlumberg — Thu, 19 May 2011 17:54:36 GMT

Hehe, thanks again Eric!

Re: Overview Map - Initial Extent

StuartBlumberg — Thu, 26 May 2011 19:53:16 GMT

Robert helped with this issue here: http://forums.arcgis.com/threads/30788-Static-Overview-Map?p=105461#post105461