From fb696656f2ac3388b6bc33ba13caf0f0feddb87e Mon Sep 17 00:00:00 2001 From: Michael Barton Date: Thu, 30 Nov 2023 20:15:31 -0700 Subject: [PATCH] docs: update friction map info for r.walk.html (#3279) --- raster/r.walk/r.walk.html | 3 +++ 1 file changed, 3 insertions(+) diff --git a/raster/r.walk/r.walk.html b/raster/r.walk/r.walk.html index ad20d842198..1ab039a4a2f 100644 --- a/raster/r.walk/r.walk.html +++ b/raster/r.walk/r.walk.html @@ -64,6 +64,9 @@

NOTES

The friction cost parameter represents a time penalty in seconds of additional walking time to cross 1 meter distance. +Friction cost can be any floating point value ≥ 0. +A friction map is a required parameter; if no friction costs are desired, +a friction map should be a raster in which all cells have a value of 0.

The lambda parameter is a dimensionless scaling factor of the friction cost: