G=list()
G$x=c(-1.0960,-0.9942,-0.8909,-0.7846,-0.6738,-0.5570,-0.4657,-0.3709,
-0.2734,-0.1740,-0.0734, 0.0246, 0.1218, 0.2169, 0.3086, 0.3956, 0.4641,
0.5293, 0.5919, 0.6530, 0.7131)
G$y=c(-0.72392,-0.62145,-0.52135,-0.42599,-0.33774,-0.25896,-0.20759,
-0.16160,-0.11981,-0.08105,-0.04414,-0.00885, 0.02774, 0.06759, 0.11262,
0.16480, 0.21487, 0.27001, 0.32895, 0.39044, 0.45319)
g = PointsAlong(G$x, G$y, N=6)
sk = 3
###############
plot(G$x, G$y, type='n',asp=1, axes=FALSE, xlab='', ylab='')
lines(G$x,G$y,col='blue')
bcars(g$x,g$y,h1=sk,h2=sk*.5, rot=g$rot , col='blue')
###############
plot(G$x, G$y, type='n',asp=1, axes=FALSE, xlab='', ylab='')
lines(G$x,G$y,col='blue')
bcars(g$x,g$y,h1=sk,h2=sk*.5, rot=g$rot , col=NA, border='blue')
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