You may try to have a look to the output of the command gdalinfo applied to your tiff files.
It sometimes reports errors or warning, expecially on compressed tiff files created with some applications. This probably means that gdal have some problem reading the file even if it appears correctly in image viewers/editors. The most common issues, in my experience, are non conventional headers, missing data at the end of some blocks, application specific metatadata information. Minor things that however may confuse gdal. We've had the same issues with some tiff files and similar results: the layer sometimes is partially showing, sometimes completely missing and sometimes working correctly. Even a very small pan produces a quite different result, almost unpredictably We recreated the tiff file, checked that gdalinfo output was positive and that fixed the issue (however in mapguide 1.2) Regards, Gabriele _______________________________________________ mapguide-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapguide-users
