[GRASSLIST:5938] Re: newbie trying to get started with a USGS DEM

[Ian MacMillan]

try r.patch, and v.mkgrid

-Ian

On Feb 27, 2005, at 10:31 PM, Russell Senior wrote:

>>>>>> "Hamish" == Hamish  <hamish_nospam at yahoo.com> writes:
>
> Hamish> Zoom to the geographic extents of your map before trying to
> Hamish> display them:
>
> Hamish> g.region rast=A145121
>
>
> Hamish> also, it might be better to start with a simpler 2D view
> Hamish> before trying NVIZ.
>
> Hamish> d.mon x0
> Hamish> d.rast A145121
>
> Excellent!  Thank you, that's got me off to a start.  The DEMs are in
> 7.5-minute chunks.  When I try to combine them, e.g.:
>
>   $ g.region rast=C645121,D645121
>   $ nviz elevation=C645121,D645121
>
> There is a small gap between the two rasters.  How can I stitch them
> together?  Also, is there an easy way to draw on a long/lat grid so
> that I can orient myself more easily?
>
> Thanks!
>
>
> -- 
> Russell Senior         ``I have nine fingers; you have ten.''
> seniorr at aracnet.com
>