[Mass-Market-GEO] Status of (WMS) tiling specification at OGC and OSGEO?

Stefan Keller sfkeller at gmail.com
Sun Aug 10 08:51:29 EDT 2008


Hi Petr, hello all,

That GSoC project GDAL2Tiles from you is an awesome work. You're giving also
a good overview on viewers and "Tile Structures for Custom Map Publishing"
here: http://www.klokan.cz/projects/gdal2tiles/

This raises for me some questions to you but ultimately are targeted to OGC,
OSGEO as well as to other members regarding the status of (WMS) tiling
specification(s).

You speak of "TMS compatible". I think there is quite some confusion
regarding (WMS) tiling and caching standards, especially but not only on
OSGEO ( http://wiki.osgeo.org/wiki/WMS_Tile_Caching;
http://wiki.osgeo.org/wiki/Tile_Map_Service_Specification;
http://wiki.osgeo.org/wiki/WMS_Tiling_Client_Recommendation;
http://wiki.osgeo.org/wiki/TilingStandard). There's also a recent thread
about this about "WMS-C tile caching spec" here
https://lists.opengeospatial.org/mailman/private/mass-market-geo/ where
David P. prepares a talk.

I think it would be worthwhile especially for OGC and OSGEO to clarify:

1. What is the status of "WMS Tiling"at OGC?

2. What is the status of the tiling standard from an OSGEO view (same as
OGC's "WMS Tiling"? Will it follow OGC's proposal if there's one)?

3. Someone to summarize the relationship of "WMS Tiling/Tiles (OGC)", "Tile
Map Service Specification/TMS (OSGEO)" and WMS-C (OSGEO,
http://tilecache.org)?

- Stefan
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