when i use r.proj to reproject it from lat-long location to albers equal area projection. it is not reponding. After one hour the output is same on screen.
#i entered the following command:
r.proj input=ras_1 location=ll_rast mapset=root dbase=/root/GRASSDATA output=ra_map2 method=nearest
#when executed i receive message on screen as :
Input Projection Parameters: +proj=longlat +a=6377301.243 +rf=300.8017 +no_defs
Input Unit Factor: 1
Output Projection Parameters: +proj=aea +lat_0=0.0000000000 +lat_1=13.0000000000 +lat_2=43.0000000000 +lon_0=82.0000000000 +x_0=0.0000000000 +y_0=0.0000000000 +a=6377301.243 +rf=300.8017 +no_defs
Output Unit Factor: 1
#output of my g.region of albers equal area is as follows:
projection: 99 (Albers Equal Area)
zone: 0
datum: WGS84
ellipsoid: evrst56
north: 4319524.94
south: 838278.56
west: -1700818.5
east: 1371967.17
nsres: 0.1
ewres: 0.1
rows: 34812464
cols: 30727857
cells: 1069712415609648
WOW! With such small resolution in your Alberts location, no wonder
r.proj is having a hard time. Try to set the resolution in the output
location to something more reasonable and compatible with you original
map resolution...
Cheers
Daniel
On Thu, Jan 29, 2009 at 11:16 AM, Mohammed Rashad <rashadkm@gmail.com> wrote:
when i use r.proj to reproject it from lat-long location to albers equal
area projection. it is not reponding. After one hour the output is same on
screen.
#i entered the following command:
r.proj input=ras_1 location=ll_rast mapset=root dbase=/root/GRASSDATA
output=ra_map2 method=nearest
#when executed i receive message on screen as :
Input Projection Parameters: +proj=longlat +a=6377301.243 +rf=300.8017
+no_defs
Input Unit Factor: 1
Output Projection Parameters: +proj=aea +lat_0=0.0000000000
+lat_1=13.0000000000 +lat_2=43.0000000000 +lon_0=82.0000000000
+x_0=0.0000000000 +y_0=0.0000000000 +a=6377301.243 +rf=300.8017 +no_defs
Output Unit Factor: 1
#output of my g.region of albers equal area is as follows:
projection: 99 (Albers Equal Area)
zone: 0
datum: WGS84
ellipsoid: evrst56
north: 4319524.94
south: 838278.56
west: -1700818.5
east: 1371967.17
nsres: 0.1
ewres: 0.1
rows: 34812464
cols: 30727857
cells: 1069712415609648
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