> H.S.Rai wrote: > > On using GRASS 6.2.2, for leics data (probably which is for > > GRASS 5.2),
Actually, it's 4.2. Yeah, it's old. Hamish wrote: > Looking in the leics DEFAULT_WIND, WIND and cellhd/* files I see that > the proj: listed there is "1", which include/gis.h tells us is > PROJECTION_UTM. (nb. those files report "zone: 0" while UTM starts at > 1; UK is in zone 30) I think that may be a historical artifact, from the time before PROJECTION_OTHER existed. > I am not sure what projection is used. Maybe someone who lives close > to Leicestershire knows. The extents look like: > > north: 322000 > south: 310000 > east: 456000 > west: 444000 > > or perhaps it is something custom? It's: # OSGB 1936 / British National Grid <27700> +proj=tmerc +lat_0=49 +lon_0=-2 +k=0.999601 +x_0=400000 +y_0=-100000 +ellps=airy +units=m +no_defs <> The tutorial's introduction (gs_intro.ps) mentions that Loughborough is at the north of the region. Wikipedia puts Loughborough at 52.7705N 1.2046W, which is: $ echo 52.7705N 1.2046W | proj -r +proj=tmerc +lat_0=49 +lon_0=-2 +k=0.999601 +x_0=400000 +y_0=-100000 +ellps=airy +units=m +no_defs 453656.57 319545.52 -- Glynn Clements <[EMAIL PROTECTED]> _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user