horseshoe function

Horseshoe Symbol

Horseshoe Symbol

Draw a Horseshoe Symbol

horseshoe(x, y, r1 = 1, r2 = 1.2, h1 = 0.5, h2 = 0.5, rot = list(cs = 1, sn = 0), col = "black", lwd = lwd, fill=FALSE)

Arguments

  • x: x-coordinates
  • y: y-coordinates
  • r1: x-radius of curled part
  • r2: y-radius of curled part
  • h1: length of first leg
  • h2: length of 2nd leg
  • rot: rotation, cos, sine
  • col: color of teeth and line
  • lwd: line width
  • fill: logical, TRUE=fill

Returns

Grapical Side Effect

Author(s)

Jonathan M. Lees<jonathan.lees@unc.edu

See Also

PointsAlong

Examples

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) plot(c(-5,5), c(-5,5), asp=1, type='n' ) lines(G) horseshoe(g$x , g$y , r1=.5, r2=.8, h2=0, h1=0, rot=g$rot , col='blue') ### to make a "warm front" use something liek this: ### shorten r2 relative to r1, to get a more squat shape for the half-suns plot(c(-5,5), c(-5,5), asp=1, type='n' ) w1=list() w1$x=c(-1.208, 0.113, 1.242, 2.200, 2.349) w1$y=c( 3.206, 2.280, 0.344,-2.560,-3.485) G =getsplineG(w1$x, w1$y, kdiv=20) lines(G) g = PointsAlong(G$x, G$y, N=5) horseshoe(g$x , g$y , r1=.5, r2=.4, h2=0, h1=0, rot=g$rot , col='blue')
  • Maintainer: Jonathan M. Lees
  • License: GPL (>= 2)
  • Last published: 2024-07-09

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