Hi Roger, I am trying to get my mapserver and tilecache work together but its somehow not working. I am using the same projection as you in all my layers and the mapfile. (This works when I call my mapserver directly from google and hence the projection is right).
Here is my mapfile (Only things that might be important). MAP EXTENT -173 5 -45 75 IMAGETYPE PNG PROJECTION "init=epsg:4326" END WEB METADATA wms_srs "EPSG:4326 EPSG:900913" END .... END LAYER .... PROJECTION "init=epsg:4326" END END Next I added the 900913 epsg to the proj.4 of mapserver and made the required changes in tilecache.cfg file as you specified. [google-tiles] type=MapServerLayer mapfile=C:/ms4w/apps/QCTGIS/drawMap.map metaTile=true metaSize=2,2 metaBuffer=0,500 layers=tr20_d00 spherical_mercator=true srs=EPSG:900913 I am not sure if the linkn I am using is wrong. I have tilecache installed in the cgi directory of the apache server that was installed using "ms4". The example index.html that comes with tilecache works fine and I can see the images being cached. Also my mapserver directly works fine. Can you tell me what is it that I am doing wrong here? the link I use for the tileUrlTemplate in google maps is "http://127.0.0.1:8123/cgi-bin/tilecache-2.10/tilecache.cgi/1.0.0/google-tiles/{Y}/{X}/{Z}.png?type=google". I can also see that this call gets initiated in the apache logs (access.log) but nothing happens therafter. I don't even know if this is failing at tilecache end and mapserver isn't being called at all or at mapserver's end where the image is not being sent by mapserver. Can you help me out here? Thanks a lot. Varun On Thu, May 21, 2009 at 12:46 PM, Roger André<ran...@gmail.com> wrote: > Ahh, ok. I'm not sure in what fashion you are using TileCache, but my > experience has been with using it to create tiles to display in Google > Maps. Google Maps uses the projection which is EPSG:900913. I > believe there are other codes for it, but that is the one I use. > > All of my source data for the MapServer projects I make are in > EPSG:4326. So there are 3 things I need to do in order to make the > Tilecache output tiles align correctly in Gmaps. > > 1. I set both the mapfile and the layer projections to EPSG:4326. > MAP > NAME 'v2_80m_global' > PROJECTION > "init=epsg:4326" > END > > LAYER > NAME 'imagery' > PROJECTION > "init=epsg:4326" > END > <snip...> > > 2. I explicity allow for a wms request to be made for the layer in > EPSG:900913 by setting the following in my MapServer LAYER: > METADATA > "wms_srs" "EPSG:4326 EPSG:900913" > <snip...> > > 3. I define my TileCache layer so that it requests images from > Mapserver in EPSG:900913. > [v2_20m_global] > type=MapServerLayer > mapfile=/var/www/mapfiles/v2_20m_global/v2_20m_global.map > metaTile=true > metaSize=2,2 > metaBuffer=0,500 > layers=imagery > spherical_mercator=true > srs=EPSG:900913 > > That's what works for me. > > Roger > -- > > On Thu, May 21, 2009 at 5:24 AM, Chad Clabaugh <cclaba...@centwire.com> wrote: >> Thank you Roger, for your response. I have done that but I do not >> understand how tilecache works. The images that are returned from mapserver >> line up perfectly. But the images returned from tilecache do not align very >> well (they're distorted). If tilecache is simply caching the returned >> images then I do not understand where this distortion comes from. Any >> thoughts? >> >> Thanks! >> >> -----Original Message----- >> From: Roger André [mailto:ran...@gmail.com] >> Sent: Wednesday, May 20, 2009 11:46 PM >> To: Chad Clabaugh >> Cc: mapserver-users@lists.osgeo.org >> Subject: Re: [mapserver-users] Precache >> >> Your request is somewhat lacking in detail, but assuming that your >> goal is a simple one, here is one way to accomplish this. >> >> 1. Create a MapServer project that displays your shapefile in whatever >> style you choose. >> 2. Setup a TileCache instance that points to your MapServer project. >> 3. Run the tilecache_seed.py script to pre-generate tiles. >> >> Roger >> -- >> >> On Wed, May 20, 2009 at 12:16 PM, Chad Clabaugh <cclaba...@centwire.com> >> wrote: >>> How can I precache tile images from shapefiles? >>> >>> >>> >>> Thanks >>> >>> >>> >>> Chad Clabaugh >>> >>> Technical Support, Engineering >>> >>> Office: 260.760.6398 >>> >>> Mobile: 260.466.8861 >>> >>> >>> >>> _______________________________________________ >>> mapserver-users mailing list >>> mapserver-users@lists.osgeo.org >>> http://lists.osgeo.org/mailman/listinfo/mapserver-users >>> >>> >> >> >> > _______________________________________________ > mapserver-users mailing list > mapserver-users@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/mapserver-users > _______________________________________________ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users