perpendicular marks along line
draw perpendicular marks along line
perpen(x, y, h, rot, col = "black", lwd = 1)
x
: x-coordinatesy
: y coordinatesh
: height of toothrot
: rotation of teethcol
: color of linelwd
: line widthUsed by faultperp
graphical side effects
Jonathan M. Lees<jonathan.lees@unc.edu
PointsAlong, faultperp
plot(c(-5,5), c(-5,5), asp=1, type='n' ) ff=list() ff$x=c(-4.850,-4.700,-3.934,-2.528, 0.603, 2.647, 3.861, 2.626) ff$y=c(-4.045,-2.087,-0.710, 0.172, 1.291, 2.087,-0.753,-4.131) G =getsplineG(ff$x, ff$y, kdiv=20) g = PointsAlong(G$x, G$y, N=5) lines(G) perpen(g$x, g$y, 5, g$rot, col = "black", lwd = 1)
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