1 4 1 Issues

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Revision as of 21:18, 1 August 2009


1.4.1 Issues List

All known Issues for World Wind .NET that are in 1.4.1 release

ID Issue Description (short) JIRA id (if applicable) Priority (H,M,L) Assigned To Status Fixed in Revision
1 blocking issue between Rismo's code and ROL locks - High unassigned Still Open -
2 James' Icon Performance changes - High unassigned Still Open -
3 Download code error response handling - High ammianus Fix available -
4 starfield listed in layer manager is the older plugin - Low ammianus Still Open -
5 WWC to support WWJ cache location and files - Low fiveofoh Testing -
6 Camera.cs - High unassigned Still Open -
7 WorldWind.log rollover - Low unassigned Still Open -
8 Mars tiles do not load - Med unassigned Still Open -

Detail Issue Notes

blocking issue between Rismo's code and ROL locks

Description: The issue with Rismo's code is that he had pushed ROL deletes into a list that were then handled on the main (gui) thread. But you need to do this for both adds and deletes because you can end up with blocking for either one.

The problem then was things in WW and plugins assumed that an add or delete happened immediately so you'd end up with breakage because somethings avoided using the getters and setters but hit the ROL array directly. They would do an ROL.add(...) then try to get at those objects immediately and they weren't there. Or they'd do an ROL.remove(...) and maybe do a dispose on it or something else not nice. So when you got around to handling deletes the object was bad or in some not good state.

The breakage can be pretty obvious (crash) or somewhat more subtle (ROs don't render or behave right).

Forum Threads: N/A


James' Icon Performance changes

Description: New rendering for icons changed in June 26th and performance degrades with more than a few thousand icons to render

Forum Threads: http://forum.worldwindcentral.com/showthread.php?t=20138&highlight=icon+performance


Download code error response handling

Description: Download code will download repeatedly request tiles after a error response code from the server, e.g. 400,404. World Wind will also not handle 500 or other server error responses with appropriate time-out behavior.

Forum Threads: http://forum.worldwindcentral.com/showthread.php?t=8207 http://forum.worldwindcentral.com/showthread.php?t=20337&page=2 http://forum.worldwindcentral.com/showthread.php?t=20700 http://forum.worldwindcentral.com/showthread.php?t=21085

Comments: (ammianus) - 7/26/09 - I've made some changes and tested with the help of James_in_Utah. The changes I made include:

  • 4xx / Client error are cached as failures and WW will not retry to download them during that session (cache is in memory only and cleared when WW is exited).
    • 400 Bad Request
    • 401 Unauthorized
    • 403 Forbidden
    • 404 Not Found
    • 206 Partial Content
    • 200 OK && Content length == 0
  • 5xx / Server Error are recorded and a timeout period will begin before requests are allowed to this server again. A message is displayed in the top right of the UI stating the timeout length. If server response contains "retry-after" header, that period is used, otherwise default is 2 minutes.
    • 500 Internal Server Error
    • 501 Not Implemented
    • 502 Bad Gateway
    • 503 Service Unavailable

Changes made to source files:

  • WebDownload/WebDownload.cs
  • PluginSDK/QuadTileSet.cs
  • PluginSDK/Renderable/GeoSpatialDownloadRequest.cs

See source code svn: https://nasa-exp.svn.sourceforge.net/svnroot/nasa-exp/branches/ammianus

starfield listed in layer manager is the older plugin

Description: when you uncheck "Starfield" in the Layer Manager, it doesn't actually remove the stars that are in the background.

Forum Threads: N/A

Comments: The Starfield issue isn't exactly a bug, the starfield listed in layer manager is the older plugin and probably isn't actually needed, the other starfield is Stars3D.

It seems that the Starfield in the layer manager is for Stars3D plugin. If you load/unload the plugin from Menu > Plug-ins > Load/Unload... it will show or hide the starfield in the background. It seems that unchecking in LayerManager doesn't actually unload this layer. That should be fixed. Ammianus 18:39, 1 August 2009 (UTC)

WWC to support WWJ cache location and files

Description: WWC (.NET) should be changed to accept data from the cache WITHOUT the leading "00".

Both the WWC and WWJ (and most other) servers do not have the leading "00". There is no reason a WWC layer cannot be made to download from the WWJ server.

Default cache location changed to match the Java. Vista has a Program Data folder in the C drive, just like Program Files, that should do the trick for storing the cache (in fact this is where WWJava stores it cache on Vista) and then there are AppData folders in the user folders that could store the config files and possibly some plug-ins (the World settings and World Wind settings files are already stored in this AppData folder, along with the debug reports C:\Users\<user>\AppData\Roaming\NASA\World Wind)

Forum Threads: N/A

Comments: I've implemented the structure compatibility in my branch in SVN. I've configured it to default (for reading and writing) to the WWJ cache structure, and resort to the WWC cache structure only for reading, and only if it can't find it in a WWJ structure. This could be easily changed to default to WWC, and use WWJ only for reading, or what have you. But this way was mentioned, and made the most sense to me.

Preliminary testing looks like it's working fine. Because it is per file, this change, when set loose on a WWC-style cache, will create duplicate-looking folders (64 and 0064), but the 0064 will contain the old cache files, any new files will be written to 64, and WW will be able to find them in either place. Again, 0064 will only contain cache files from before the switch, and 64 will contain only cache files from after the switch. Any scheme to "convert" the cache to a pure WWJ format will need to take this into consideration.

--5of0 11:33, 1 August 2009 (UTC)


Description: IRC - it looks like some raytracing/3D geometry issues

Forum Threads: N/A


WorldWind.log rollover

Description: The WorldWind.log file will continue to append indefinitely and it will never rollover to a new file. Idea to have the log file have a configurable size to rollover. Previous logs could be archived for a certain length of time then also deleted.

Forum Threads: N/A


Mars tiles do not load

Description: Reported by an Unregistered user in the Bug Reports forum. The tiles for Mars do not download from the NASA server. The error response is: "The remote server returned an error: (401) Unauthorized." The URL is for example http://worldwind25.arc.nasa.gov/mars/mars.aspx?T=mocC256&L=0&X=7&Y=0

We should update to a new server or if not maybe not include Mars with the next official release.

Forum Threads: http://forum.worldwindcentral.com/showthread.php?t=21573

Comments: Should any action need to be taken to alert all users on 1.4.0? Like an announcment on the wiki?

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