surface contouring

[Randy Hills]

On Thu, 23 Feb 1995 Rick.Collins at CCIW.ca wrote:

> I was wondering if there is a method of creating a surface contour from an
> elevation site list within a restricted boundary.  When using s.surf.idw,
> a raster for the entire geographic region is created.  I would like to
> to create a surface within the confines of an irregular political boundary.
> I would appreciate any suggestions that you might have in solving this
> problem.
>                                               Rick 
>

Try creating a raster representing this boundary, and turn this raster into
a mask.  s.surf.idw will use the mask to create a surface inside the 
boundary.  If your boundary is described as a vector, you'll need to use
v.to.rast to create this raster.
 
Randy Hills, National Operational Hydrologic Remote Sensing Center (NOHRSC)
National Weather Service
Minneapolis,  MN