Good to know. Thanks. I've never seen it for other geospatial data entry, but good to know that GDAL can read such a file.
Michael ____________________ C. Michael Barton Director, Center for Social Dynamics & Complexity Professor of Anthropology, School of Human Evolution & Social Change Arizona State University voice: 480-965-6262 (SHESC), 480-727-9746 (CSDC) fax: 480-965-7671 (SHESC), 480-727-0709 (CSDC) www: http://www.public.asu.edu/~cmbarton, http://csdc.asu.edu On Aug 13, 2011, at 8:52 PM, Hamish wrote: > Michael wrote: >> Unless there is some kind of geocoded version of PNG's (I don't >> know of any), the PNG would not be georeferenced and hence not >> useable in any way for the GIS without some kind of >> transformation. > > for the record, you can create a "worldfile" for a PNG the same > as for a plain TIFF image, and GDAL will pick it up. It needs to > be named the same as the image but with a .pgw extension. > http://gdal.org/frmt_various.html#PNG > > I'm not sure if anything other than GDAL-based things would > respect that though, or if this trick helps for Sudeep's > question or not. > > (GDAL's virtual-raster format is another wonderful cpu-saving > device worth mentioning btw) > http://www.gdal.org/gdal_vrttut.html > > > Hamish > _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
