Guess I got that one totally wrong (I'm very new to all this) I had looked at those posts - but they still show just a single TMS layer - not TMS and WMS combined. The bit I was looking for was an example of using a TMS on top of a WMS layer - for example - say a small custom raster map (not of the whole world) split into TMS tiles that should sit at a certain spot on a world basemap. I'd still love to see an example of that if you know of any.
As for the popper prep of data for serving and mapserver speed - yes the data probably could be much better - I'd just doing my best trying to learn way more about GIS and these systems then I ever intended to do :) It's all converted to shapefiles and only 2 TIFs - large shapefiles are split into tiles, everything has tile indexes, limits for various layers by scale, and all the unused data has been stripped out - but I'm really just fumbling to make it work - that said there are 27 layers (about 8GB) of data I need to combine into a nice map - I was happy I got it to work at all :) PS: Please don't get me wrong - I hope that last email didn't come across as being angry or negative about OL or this group (email sometimes comes across that way even when not intended) - I was just trying to help someone with seemingly the same problem. There is an immense amount of knowledge built up inside many of the people here - I am truly in awe of how much people know about all this stuff - I think there are a lot of us just trying to catch up enough to get something to work - please bear with our/my ignorance. For example suggesting writing another tool to do something like what gdal2tiles does - I wouldn't ever even think of embarking upon a task like that until I finally manage, for example, to wrap my head around how a bounding box can be specified using metres instead of Lat/Long for units (still stumps me - and yes I have read the posts about it) "@^# it jim, I'm a programmer not a cartographer!" ;) Christopher Schmidt wrote: > On Wed, Jun 04, 2008 at 09:55:40AM -0700, Scott Baker wrote: > >> I was trying to do something similar to this when I first started - I >> asked here in the list about it too - but received no response. So I >> spent 3 months figuring it out myself... Correct me if I'm wrong, but I >> couldn't find any way to use gdal2tiles for anything other then a single >> map - always in pixel coordinates and not suitable for any sort of >> overlays. >> > > I think I responded to that claim from another user here: > > http://www.nabble.com/GDAL2Tiles-td16458672.html > > http://openlayers.org/pipermail/users/2008-April/005362.html > > >> It's a great method for creating a standalone OL viewer of a raster map >> but that's about it. >> > > I would tend to disagree. > > >> As soon as you want to get into mixing layers, overlaying stuff - etc... >> you will need a mapserver to do it. >> > > This is definitely not true -- even if you can't use gdal2tiles, you > could always write another tool that did something similar. > > >> I ended up with mapserver running and then implementing tilecache >> (mapserver is incredibly slow directly) >> > > I doubt this is true. It is more likely that your data is poorly > prepared for serving dynamically. (Properly preparing data for dynamic > serving is hard. For vector data, it requires intelligent cartographic > decisions. For Raster data, it requires effort to be put into ensuring > that your data is properly overlay-ed, tiled, not-compressed, etc.) > > >> then an OL display. The >> combination of the three is the only way I found to get nice looking >> maps and have floexibility enough to include raster, vector, and public >> data in OL. >> > > Sure, but that's not related to the question at hand. gdal2tiles can't > draw vector data into tiles, so you'll need to set up a server for that > part of it. > > Regards, > -- skype pawprint_net telephone 604.885.7449 toll-free 1.888.493.2360 Scott W. Baker B.A.Sc *President*, PawPrint.net <http://www.pawprint.net/> _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users
