1 | semicircle(x.center, y.center, radius, start_angle, end_angle, ...)
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x.center |
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y.center |
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radius |
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start_angle |
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end_angle |
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... |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | ##---- Should be DIRECTLY executable !! ----
##-- ==> Define data, use random,
##-- or do help(data=index) for the standard data sets.
## The function is currently defined as
function (x.center, y.center, radius = r, start_angle, end_angle,
...)
{
nseg = 360
start_angler = start_angle * pi/180
end_angler = end_angle * pi/180
xx <- x.center + radius * cos(seq(start_angler, end_angler,
length.out = nseg))
yy <- y.center + radius * sin(seq(start_angler, end_angler,
length.out = nseg))
print(x.center)
return(cbind(xx, yy))
}
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