[GRASS5] V.proj error

[Michael Barton]

Hamish,

The conus file does exist in the following location

/Applications/Grass/grass61cvs.app/Contents/Resources/grass-6.1.cvs/etc/nad/
conus

Michael

On 7/21/05 11:52 PM, "Hamish" <hamish_nospam at yahoo.com> wrote:

>> This is an error that I haven¹t seen come across the list. I¹m trying
>> to reproject vectors from a latlon nad27 location into a wgs84 utm
>> location. I¹m using a 9 July 2005 MAC OSX binary. Any thoughts?
>> 
>> v.proj input=chev_heb_roads location=mrss_latlon
>> mapset=Apache-Sitgreaves output=chevheber_roads
>> 
>> Input Projection Parameters: +proj=latlong +a=6378206.4
>> +rf=294.9786982 +no_defs
>> +nadgrids=/Applications/Grass/grass61cvs.app/Contents/Resources/grass
>> -6.1.cv s/etc/nad/conus
>> Input Unit Factor: 1
>> 
>> Output Projection Parameters: +proj=utm +zone=12 +a=6378137
>> +rf=298.257223563 +no_defs +towgs84=0.000,0.000,0.000
>> Output Unit Factor: 1
>> 
>> Creating vector file...
>> pj_transform() failed
>> cause: failed to load NAD27-83 correction file
>> Error in pj_do_transform
> 
> 
> this has to do with Paul's recent fix to make `g.proj -j` display the
> full path name to the nadgrid file. Does the
> /Applications/Grass/grass61cvs.app/Contents/Resources/grass-6.1.cvs/etc/nad/co
> nus
> 
> file exist? I saw the same problem with r(?).proj when I changed the
> string to $GISBASE locally, but it has been working fine for me using
> the full path (in linux).
> 
> 
> try using cs2cs from the command line with some test points:
> 
> IN_PROJ="`g.proj -jf`"
> OUT_PROJ="+proj=longlat +towgs84=0.000,0.000,0.000"
> 
> echo "lon lat" | cs2cs -f %.7f $IN_PROJ +to $OUT_PROJ
> 
> 
> 
> Hamish

____________________
C. Michael Barton, Professor of Anthropology
School of Human Evolution and Social Change
PO Box 872402
Arizona State University
Tempe, AZ  85287-2402
USA

Phone: 480-965-6262
Fax: 480-965-7671
www: <www.public.asu.edu/~cmbarton>