Nothing

```
spline.arrow<-function(x,y=0,kdiv=20, arrow=1, length=.2, col="black",
thick = 0.01, headlength = 0.2, headthick = 0.1, code=2, ...)
{
#### make a spline interpolated line from a set of clicks
#### add an arrow at the end
### arrow=2 -> fancy arrow
### require(GEOmap)
if(arrow>1)
{
### should be plotted with asp=1
###require(RFOC)
}
if(is.list(x))
{
y = x$y
x = x$x
}
G = GEOmap::getspline(x, y, kdiv=kdiv)
lines(G, col = col, ...)
n = length(G$x)
if(arrow==1)
{
arrows(G$x[n-1], G$y[n-1], G$x[n], G$y[n], length=length, col = col)
if(code==3)
{
arrows(G$x[2], G$y[2], G$x[1], G$y[1], length=length, col = col)
}
}
if(arrow==2)
{
fancyarrows(G$x[n-1], G$y[n-1], G$x[n], G$y[n],
thick =thick ,
headlength = headlength,
headthick =headthick,
col = col , border = col )
}
invisible(G)
}
```

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