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Ingy döt Net 2013-04-10 23:57:08 -07:00
parent 47bf37c096
commit b83f433714
12433 changed files with 156208 additions and 123 deletions
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Task/Ray-casting-algorithm/R/ray-casting-algorithm-2.r Normal file
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######## utility functions #########
point <- function(x,y) list(x=x, y=y)
# pts = list(p1, p2, ... )... coords
# segs = list(c(1,2), c(2,1) ...) indices
createPolygon <- function(pts, segs) {
pol <- list()
for(pseg in segs) {
pol <- c(pol, list(list(A=pts[[pseg[1]]], B=pts[[pseg[2]]])))
}
pol
}