sjevor {sjevor} | R Documentation |
Voronoi analysis
Description
Compute the Voronoi tesselation, using Steve Fortune's code.
Usage
vorcr(x,y, xl, xh, yl, yh, fuzz, opts)
Arguments
x,y |
x and y coordinates of the sites |
xl, xh |
lowest and highest x coordinate value |
yl, yh |
lowest and highest y coordinate value |
fuzz |
amount of random noise to add to the position of each point |
opts |
useful options when calculating voronoi information. TODO
These will need documenting. |
v |
The structure returned by the Voronoi code. |
show.pts,show.rejects |
If true, then sites are drawn as circles.
Furthermore, if show.rejects is true, the reject cells are filled. |
show.areas |
If true, then show.pts is ignored and instead the
area of each polygon is displayed. |
Value
A data structure that contains several interesting things...
Examples
x <- runif(100); y <- runif(100)
plot(x, y, asp=1)
v <- vorcr(x, y, 0, 1, 0, 1)
class(v)
names(v)
plot(v)
del.plot(v)
vorcr.polygons(v)
ianglesplot(v$iangles, show=TRUE)
stopifnot((apply(v$delangs, 1, sum) - 180) < 0.001)
[Package
sjevor version 0.3
Index]