On 07/13/2011 01:40 AM, Thomas Wootten wrote:
I want to project some data into an Oblique Equidistant Cylindrical (AKA
Equirectangular) projection. Proj.4 itself understands the following
parameters string
+proj=ob_tran +o_proj=eqc +o_alpha=315 +a=9213000 +b=9213000 +no_defs
+units=m
(Whether it actually gives the desired projection is another matter.
Also the ellipsoid dimensions are funny because this is for a fictional
extrasolar planet, not Earth.)
But GRASS just gives "ERROR: Can't parse PROJ.4-style parameter string"
How can I make this projection work in GRASS?
ob_tran has three possible ways of providing parameters. I think GRASS
only supports the first one of these, i.e. latitude and longitude for
the new pole.
# proj -l=ob_tran
ob_tran : General Oblique Transformation
Misc Sph
o_proj= plus parameters for projection
o_lat_p= o_lon_p= (new pole) or
o_alpha= o_lon_c= o_lat_c= or
o_lon_1= o_lat_1= o_lon_2= o_lat_2=
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