hi, the "easiest" way imho would be to create a custom batch script that creates wld georeferencing files for each of your jpegs:
- use grep on the file name to extract the upper left coordinate (minx, maxy) - calculate the size of a single pixel (either from the image size and extent, or hardcoded if all your images have the same pixel size) - write the georeferencing matrix to disk (check http://duff.ess.washington.edu/data/raster/drg/tfw.html) - check with gdalinfo that your georeferencing is taken into account cheers, thomas On Sun, Dec 14, 2008 at 11:13, bibbob <te...@cam.ac.uk> wrote: > > Hello, > > Sorry if this question is a bit newbie-ish, but I've searched quite a bit > for a guide on how to do this and haven't come up with anything yet. > > I have a pile of JPEG images which are tiles of a map. I'd like to serve > them as a layer in MapServer (to use them within OpenLayers, but that's > another story). Each image has its co-ordinates built into the filename, > like so: > > ~/tiles $ ls > tile-250000-253000-340000-343000.jpg tile-256000-259000-340000-343000.jpg > tile-262000-265000-340000-343000.jpg tile-268000-271000-340000-343000.jpg > tile-250000-253000-343000-346000.jpg tile-256000-259000-343000-346000.jpg > > The list is truncated - the format is tile-minX-maxX-minY-maxY.jpg where the > origin is in the bottom-left of the map. > > I've read that I can use gdaltindex to create the shapefile to index these > tiles, but when I try it, it complains that they aren't georeferenced: > "It appears no georeferencing is available for > `tile-271000-274000-358000-361000.jpg', skipping." > > ...which is understandable, as they're just JPEGs. Any idea how I tell it > where each tile is? How do I put this into Mapserver? If there's a HOWTO > or similar out there that I've missed, could someone please let me know > where it is? > > Thank you. > > PS. Sorry about the newbieness - there's just so much to learn about mapping > software and I'm a bit lost. > -- > View this message in context: > http://www.nabble.com/Serving-jpeg-tiles---is-there-a-howto--tp20998876p20998876.html > Sent from the Mapserver - User mailing list archive at Nabble.com. > > _______________________________________________ > 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