I am using 6.3,my tiff info:--------------------------------------- Coordinate System is: PROJCS["WGS 84 / UTM zone 20S", GEOGCS["WGS 84", DATUM["WGS_1984", SPHEROID["WGS 84",6378137,298.2572235630016, AUTHORITY["EPSG","7030"]], AUTHORITY["EPSG","6326"]], PRIMEM["Greenwich",0], UNIT["degree",0.0174532925199433], AUTHORITY["EPSG","4326"]], PROJECTION["Transverse_Mercator"], PARAMETER["latitude_of_origin",0], PARAMETER["central_meridian",-63], PARAMETER["scale_factor",0.9996], PARAMETER["false_easting",500000], PARAMETER["false_northing",10000000], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AUTHORITY["EPSG","32720"]] -------------------------------------------------------------- First I create location :g.proj -c georef=d:/swilAlphaTIFF.tif datumtrans=0 location=newlocation then import it to the new location: get four raster maps(it has three band),I composite them and then transfer the composted raster to vector,then extract each category to a vector,one of them is named bule. Then I start to covert the projection. I creation new epsg4326 location: then "v.proj input=bule location=newlocation mapset=PERMANENT dbase=D:\GrassDataBase output=newblue But when I display the newblue it is blank,just like the projection is not matched...... I ...... have no idea.
============================= Actually I have exported the vector data to shapefile ,then use arcgis to transfer the shapefile to kml,but I think the accurcy is low... 2009/6/19 Hamish <hamis...@yahoo.com> > > Hamish: > > create a new lat/lon WGS84 location with EPSG code # > > 4326, then pull in maps from source mapset using r.proj, v.proj. > > maven: > > I have lose my heart so.... So many > > people have gave me help,.......I can not do it. > > > ok probably that I broke g.proj in 6.4.0rc5 makes it my fault that you > can't create any new locations :) sorry. > > > > try this: > > start grass from the command line with > > grass64 -text > > then type a new location name, esc-enter, and create new Lat/Lon location. > follow prompts, when it asks for a datum type "wgs84". > > > > or try to install another version besides 6.4.0rc5 > (not 6.5svn or 7svn either). > > > > good luck, > Hamish > > > > > >
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