[mapserver-dev] Tilecache WMS-C patch for 5.6.5

Yewondwossen Assefa yassefa at dmsolutions.ca
Mon Aug 9 21:10:04 EDT 2010

On 09/08/2010 11:23 AM, Stephen Woodbridge wrote:
> Hi Assefa,
> I could not find a bug for this feature, did you ever open one? I will 
> if you would like. I think it would be a good place to collect 
> patches, comments and what nots. For example I have patches for 5.4.2, 
> 5.6.1, 5.6.4, and now 5.6.5.
> To use this patch, get a clean copy of mapserver-5.6.5, apply tha 
> patch to it, run autoconf, ./doit-mapserver-svn is my configure 
> script, make it as normal.
> I have compiled and linked the above on linux, but have not had time 
> to do any testing yet, but the changes between 5.6.4 and 5.6.5 do not 
> really impact the tilecache code. I made changes to the windows build 
> files, but have no way to test them here.
  No there is no bug currently on it. Yes please add a bug on it.

> Next I am going to look into adding support for VirtualEarth/Bing 
> quadtree URLs. I think the tasks related to this are:
> 1. how to select which tile scheme? I'm thinking it should be defined 
> in the tilecache.cfg file but could be defined in the mapfile like 
> map->web->metadata->tilescheme.
> 2. tools to read, write, validate quadtree URI and map them to tiles 
> and metatiles
> 3. algorithm mapping tile to a directory structure. My plan here is to 
> define MAX_FILES_PER_DIR=1024 or something like that and then have 
> tiles cached into directories so we have some control over the number 
> of directories and the number of files in a directory because these 
> all have performance implications.
> I would appreciate any ideas, thoughts, collaboration you might be 
> able to offer.
  I have not looked into details on the VirtualEarth/Bing quadtree, but 
one question that comes in mind is there for you  a need to store tiles 
using the VE structure or are you looking mainly to be able to 
parse/respond VE type urls that use a quadtree value?


> Thanks,
>   -Steve W
> _______________________________________________
> mapserver-dev mailing list
> mapserver-dev at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/mapserver-dev

Assefa Yewondwossen
Software Analyst

Email:yassefa at dmsolutions.ca

Phone: (613) 565-5056 (ext 14)
Fax:   (613) 565-0925

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