[GRASS-user] Oblique Equidistant Cylindrical / Equirectangular projection

2011-07-12 Thread Thomas Wootten 
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?
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[GRASS-user] Weighted Voronoi diagram

2009-07-23 Thread Thomas Wootten 
Is there any way to create a Weighted Voronoi Diagram in grass?
v.voronoi.* will create ordinary ones, but not weighted.
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