[GRASSLIST:10328] Re: robinson (winkel) projection

Markus Neteler neteler at itc.it
Wed Feb 15 15:25:08 EST 2006


On Wed, Feb 15, 2006 at 10:29:54AM -0800, Ian MacMillan wrote:
... 
> Degrees would be really nice as a standard unit for these kinds of 
> projections, but since their absolute length varies depending on your 
> location on the earth, they can't be used in grass.  My workaround to 
> this has been to make a vector grid in a latlong location that is 
> spaced about ten or fifteen degrees apart for the entire earth.  I then 
> project (with v.proj) that vector file into my robinson location as a 
> first step so that I can see where I am in the world.
>

Ian,

you may want to enjoy the new d.grid which supports LatLong
grids in non-LatLong locations:
 http://grass.itc.it/grass61/manuals/html61_user/d.grid.html

 -g
    Draw geographic grid


Markus




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