[Raster-commits] r193 - in pkg/raster: R man

[noreply at r-forge.r-project.org]

Author: jacobvanetten
Date: 2009-01-27 10:33:01 +0100 (Tue, 27 Jan 2009)
New Revision: 193

Modified:
   pkg/raster/R/adjacency.R
   pkg/raster/man/adjacency.Rd
Log:
adjacency doc

Modified: pkg/raster/R/adjacency.R
===================================================================
--- pkg/raster/R/adjacency.R	2009-01-27 09:19:10 UTC (rev 192)
+++ pkg/raster/R/adjacency.R	2009-01-27 09:33:01 UTC (rev 193)
@@ -251,8 +251,6 @@
 	return(fromto)
 }
 
-
-
 .adjBishop <- function(raster, fromCells, toCells, outerMeridianConnect)  {
 	nCols <- ncol(raster)
 	nCells <- ncell(raster)

Modified: pkg/raster/man/adjacency.Rd
===================================================================
--- pkg/raster/man/adjacency.Rd	2009-01-27 09:19:10 UTC (rev 192)
+++ pkg/raster/man/adjacency.Rd	2009-01-27 09:33:01 UTC (rev 193)
@@ -20,6 +20,7 @@
 Cell numbers start with 1 in the upperleft corner and increase from left to right and from top to bottom.
 Number of directions: 4 connects cells with one-cell rook moves, 8 with one-cell queen moves, and 16 with knight and one-cell queen moves.
 Bishop connects cells with one-cell diagonal moves (special cases).
+The function connects the outer meridians if the raster is in a geographic (latlon) projection and longitudes between -180 and 180 degrees are covered.
 }
 
 \value{
@@ -30,6 +31,8 @@
 \examples{
 	rs <- newRaster(nrows=10, ncols=10)
 	adj <- adjacency(raster = rs, fromCells = c(1,30,55,72,100), toCells = c(1:ncell(rs)), directions=4) 
+	
+	#Visualize the outcome in a raster
 	v <- vector(length=ncell(rs))
 	v[adj[,2]] <- 2
 	v[adj[,1]] <- 1