distance -Reply

[Gerald Nelson]

>>>>>>>>>>>>>>>
>You may want to get the program r.distance.
>
>GRASS 4.1 > r.distance help
>
>Usage:
 >r.distance [-lq] maps=map1,map2 [fs=name]
>
>Flags:
>  -l   include category labels in the output
>  -q   run quietly
>
>Parameters:
>  maps   maps for computing inter-class distances
>    fs   output field separator
>         default: :
>
>Here is an example of the output:
 
>GRASS 4.1 > r.distance -l maps=dist,dist
>Reading map dist at jackson ... 100%
>Reading map dist at jackson ... 100%
>Processing...
>1:1:0:693510:3600110:693510:3600110:1:1
>1:2:5942.6929922385:695390:3588470:696490:3582630:1:2
>2:1:5942.6929922385:696490:3582630:695390:3588470:2:1
>..etc
>
>You should be able to get the program off moon.
>
>Bill Jackson
>ENL
>USA-CERL

Bill, I couldn't find r.distance on the moon, at least in incoming.  Also, Im
not sure it does what I want.  From the example above, it looks like
r.distance outputs distances between sets of features in two maps.  I
want to end up with a new map whose cell values are the distances to
the nearest specified feature, in my case the nearest distance to a road.
 Am I missing something?  Jerry Nelson