On Mon, Dec 8, 2008 at 6:08 PM, Dylan Beaudette <[email protected]> wrote: >> Richard Greenwood wrote: >> The files in http://svn.osgeo.org/metacrs/proj/trunk/proj/nad/ are >> ASCII. In the nad directory, you need to do: >> ./configure >> make >> install >> to create the binary grid shift files that proj actually uses. (Proj >> doesn't read the ASCII files). And I'm not sure that the >> config-make-install of the proj program does the nad directory. >> >> Rich > > REALLY? > > I have never heard that the config-make-make install steps would not process > the NAD grid files... Can someone verify this? > > Cheers, > > Dylan
Dylan On my Ubuntu 8.04 with a binary proj installed from the Ubuntu repository I get: echo '-121.000000 37.000000' | cs2cs +proj=latlong +datum=NAD27 \ +to +proj=latlong +datum=NAD83 121dW 37dN 0.000 # obviously no datum transform So I fetched the proj source and proj-datumgrid-1.4.zip and did ./configure make make install. But still no datum transform from my new copy of proj. So I did: $ nad2bin <src/proj-4.6.1/nad/proj-datumgrid-1.4/conus.lla conus and copied it to /usr/share/proj/ and finally I get the expected results: $ echo '-121.000000 37.000000' | cs2cs +proj=latlong +datum=NAD27 +to +proj=latlong +datum=NAD83 121d0'3.704"W 36d59'59.804"N 0.000 The only copy of conus that $ locate found on my system prior to my making it with nad2bin was in /usr/lib/grass/etc/nad/ Probably doing $ export PROJ_LIB=/usr/lib/grass/etc/nad/ would have saved me making conus. Rich -- Richard Greenwood [email protected] www.greenwoodmap.com _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
