[GRASS-user] how to measure distances in a constrained space

[Facundo Muñoz]

Moritz Lennert escribió:
>> - See the v.surf.icw script in wiki addons. it is like IDW interpolation
>> but replaces euclidean distance with true (cost) distance and goes
>> around corners/coastlines.
> Interesting, but:
> "Input data points [...] but should be kept within a few dozen as the 
> module becomes very computationally expensive"
>
> IISC, Facundo's module is based on that, or ?
Ja! you got me!
No, the module is not based on v.surf.icw. I just used it as a 
"template" or a guide for programming mine, since i had never wrote one. 
And since I also make intensive use of r.cost, I just kept that phrase 
in the description.

Regards!
ƒacu.-