topic Re: Features disappear on zoom? in ArcGIS Explorer Desktop Questions

Features disappear on zoom?

Public_HealthObservatory — Wed, 14 Apr 2010 14:12:30 GMT

I have an AGX 1200 project with a series of boundary shapefiles in it. At the full extent of the shapefiles (all shapefiles have the same extent), I can see all the features of all of the shapefiles. However, when I zoom in, some of them disappear. Some shapefiles work at any zoom level, and some of them disappear when I zoom in. First just part of the features will disappear, like the right half of the extent. Then as I go in further, they disappear completely. None of them have any minimum/maximum display scales set. The ones that work, work consistently, and the ones that fail, fail consistently.

Can anyone help? Thanks in advance!

Features disappear on zoom?

KenBuja — Wed, 14 Apr 2010 14:50:53 GMT

Use the Repair Geometry tool in the ArcGIS's Toolbox to fix this problem.

Features disappear on zoom?

Public_HealthObservatory — Wed, 14 Apr 2010 15:01:34 GMT

Further to my original post: I uninstalled 1200 and reinstalled 900, without repairing the geometry or anything. Rolling back to 900 solved the problem, so I don't suspect it's the geometry...?

Features disappear on zoom?

MichaelBranscomb — Thu, 15 Apr 2010 07:47:04 GMT

I would also suggest (if you reinstall 1200) using the delete all caches tool within the ArcGIs Explorer options > Advanced dialog.

Regards

Mike

Reinstall 1200

JoeFlannery — Thu, 15 Apr 2010 16:48:26 GMT

This happened in build 900 and happens less frequently in build 1200 (from my experience). Instead of clearing all the caches for you map, go to the Manage Layers button on the Home tab and highlight the failing shapefile layer and then click on the Clear Cache button. This clears the cache for the chosen layer, only.

Clearing cache only works temporarily

JohnPower — Thu, 15 Apr 2010 17:42:35 GMT

I am experiencing the same problem as skimmer. I followed the suggestion to clear the cache. This worked the next time I opened the map file. But when I opened it the next time the layer had the same problem - it vanished when zoomed in too closely or too far out.

Features disappear on zoom?

BobLooney — Sat, 17 Apr 2010 04:28:57 GMT

edited ....

Re: Features disappear on zoom?

AdamBaer — Thu, 12 Aug 2010 16:22:53 GMT

In the old forums, I found a solution for this issue. They suggested exporting the shapefile to a new shapefile (right click --> data --> export). This fixed this issue for me. Hope it helps. Adam

Re: Features disappear on zoom?

PeterLindstrom — Fri, 27 Aug 2010 18:45:32 GMT

I can't seem to find a way to get this problem to go away for good. Clearing the cache always seems to fix it, but not the next time I open the map (even if it's in the same ArcGIS Explorer session). I tried repairing the geometry and exporting to a new layer, but neither worked beyond the first time the map was accessed.

If anyone has any new ideas about this issue, I'd love to hear them.

Re: Features disappear on zoom?

BobLooney — Sat, 28 Aug 2010 19:50:12 GMT

Does the problem go away when you switch the map to 2d?

Re: Features disappear on zoom?

PeterLindstrom — Mon, 30 Aug 2010 16:44:56 GMT

Oddly enough, I only have the problem in 2D. I'd rather clear the cache every time than use 3D when I don't need it, though (because of performance issues).

Re: Features disappear on zoom?

KristinWinchell — Thu, 11 Nov 2010 19:52:58 GMT

I found a solution to this here: http://resources.arcgis.com/content/kbase?fa=articleShow&d=24610

Deleting the corresponding .sbx and .sbn files seems to fix the issue. I'm guessing that if the issue reappears then re-deleting these files will fix it again...

Re: Features disappear on zoom?

PeterLindstrom — Mon, 15 Nov 2010 14:44:59 GMT

I'm using file geodatabases, so the shapefile fix won't work for me.

Re: Features disappear on zoom?

MichaelBranscomb — Mon, 15 Nov 2010 14:52:42 GMT

Peter,

If you can post your data on the forum I'll happily test it here.

Regards

Mike

Re: Need to Clear C:\Temp\E3 Cache Location

ShellyBianchi-Williamson — Tue, 23 Nov 2010 19:45:45 GMT

Although time has passed from the last posting, I wished to provide insight. Under C:\Documents and Settings\[username]\Local Settings\Temp, the A3 folder contains the caches that need to be purged on a regular basis, especially if the same default map or AGE project is opened time and again. By not clearing the cache, the feature class/layer symbology [not labeling] will disappear.

As a resolve to the matter, I use a .vbs script that purges all of the C:\Temp folder when a user logs in and for those, that rarely logout during the day, a desktop shortcut to purge as needed during the day. I have also upgraded from AGE 1200 to the latest version 1500.

Re: Features disappear on zoom?

ShellyBianchi-Williamson — Tue, 23 Nov 2010 19:48:07 GMT

Re: Features disappear on zoom?

PeterLindstrom — Mon, 29 Nov 2010 19:07:30 GMT

sbianchiwilliamson's method seems like a decent work-around, but I'd still like to see this resolved in a way that doesn't require any user intervention.

I've been testing the main layer that's been giving me problems (ownership), and here are a couple of observations:

Exporting from my central file geodatabase to a layer package seems to resolve the problem, at least mostly. I still get an occasional "hole" when it uses cached data. And I'd rather have ArcGIS Explorer users connect directly to corporate data rather than derived layer packages.

The effect seems to be worse when the data is added to maps with a lot of layers on them.

I would upload some data for others to look at, but I can't seem to get the file to attach to my message - I get this error message: "Bad Gateway - the proxy server received an invalid response from an upstream server."

Re: Features disappear on zoom?

MichaelBranscomb — Tue, 30 Nov 2010 06:20:58 GMT

Peter,

As far as I'm aware we have not yet been able to reproduce this issue. If you are not able to upload data to the forum please feel free to email me at mbranscomb@esri.com.

Regards

Mike

Re: Features disappear on zoom?

NicholasGross — Tue, 14 Dec 2010 15:24:22 GMT

I have the exact same problem. Features disappearing as I pan or zoom in on the map or sometimes only labels showing up. Deleting the entire cache, or just the cache for that layer solves the problem, but only temporarily. The next time or two that I use the same map, the same problem begins again. It's a hassle when several layers aren't functioning properly, making a full cache delete and restart the only practical option.

This problem is common on at least three machines (all of different makes and models) that I'm aware of. I'm using layer files referencing file geodatabase feature classes. The gdb is version 10 and Explorer is Build 1500.

Re: Features disappear on zoom?

RickHollatz — Wed, 29 Dec 2010 16:56:25 GMT

I've also had the exact same problem but seem to have found a means to work around it. I'm using Explorer build 1500. In my current case the failing layers are layer packages (.lpk) built in ArcGIS 10. I've also watched it happen last week in shapefiles and FGDB feature classes. Only two out of several layer packages are experiencing this issue in my current Explorer project. They work fine for a while panning and zooming, but it seems that once the cache for these particular layers gets to a certain size of around 2mb they start to fail in the map (I've been watching the file sizes in the default cache directory C:\Documents and Settings\...username...\Local Settings\Temp\E3).

My work around is to change the 'Refresh Options' for the particular problem layers. Go to Layer Properties, Source Data, and choose the radio button for "At a specific time interval". It doesn't seem to matter what time interval you set. I tried "1 hour" and also "1 minute" and both worked immediately to solve the problem. You need to save the your project for the setting to take effect permanently.

As a side note...It seems like the refresh option for "When the map is opened or the layer is added" would similarly solve the problem but it does not. That option apparently has a bug. See this forum http://forums.arcgis.com/threads/15362-Help-me-understand-caches-and-refresh-options?highlight=explorer+cache
-Rick