[GRASS-user] Distance layer

Moritz Lennert mlennert at club.worldonline.be
Fri Oct 27 12:28:03 EDT 2006

Nomad Rain wrote:
> Hello GRASS group!
> Currently  I  try  to  make  an  environmental  application - a script
> implementing  one  of  the  atmospheric polution models. The algorithm
> demands  to  include the function which returns the value depending on
> distance from the polution source.
> Thus,  I want to calculate the layer of distances (first map) from the
> only pollution source (point on second map).
> I cannot find the command which can automaticaly return the value of
> distance between two pixels on two maps.
> Does anybody know how to do it (find the distance betw. 2 pixels)?
> I use grass-6.2.0RC2

r.distance ?

There was some discussion about a potential problem with r.distance


Markus Neteler wrote:
> r.distance happily calculates the distance even if
> one object is within the other


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