Description Usage Arguments Details Author(s) See Also Examples

adds a segment of a cylinder to a plot

1 2 3 |

`rx ` |
horizontal radius of full cylinder. |

`ry ` |
vertical radius of full cylinder. |

`from ` |
start radius of segment, radians. |

`to ` |
end radius of segment, radians. |

`len ` |
cylinder length. |

`mid ` |
midpoint of cylinder. |

`angle ` |
rotation angle, degrees. |

`dr ` |
size of segments, in radians, to draw top/bottom ellipse (decrease for smoother). |

`col ` |
color of slice. |

`delt ` |
increase factor, from left to right. |

`... ` |
arguments passed to polygon function. |

When `angle`

= 0 (the default), the cylindersegment is parallel
to the x-axis.

`rx`

and `ry`

are the horizontal and vertical radiusses of
the bordering ellipses.
Here "horizontal" and "vertical" denote the position BEFORE rotation

if `delt`

> 1, the width of the cylinder will increase from
left to right.

Karline Soetaert <karline.soetaert@nioz.nl>

1 2 3 4 5 6 7 8 9 10 11 12 13 14 | ```
emptyplot(main = "cylindersegment")
cylindersegment(mid = c(0.1, 0.5), rx = 0.1, ry = 0.1,
from = pi, to = 3*pi/2, col = "blue",
len = 0.5, delt = 1.1, lwd = 2, angle = 90)
cylindersegment(mid = c(0.8, 0.5), rx = 0.1, ry = 0.1,
from = 0, to = pi/2, col = "red", len = 0.5,
delt = 1.0, lwd = 2, angle = 45)
cylindersegment(mid = c(0.5, 0.5), rx = 0.1, ry = 0.1,
from = pi/2, to = pi, col = "lightblue",
len = 0.2, delt = 1.5, lwd = 2)
for (i in seq(0.1, 0.9, 0.1))
cylindersegment(mid = c(i, 0.9), rx = 0.035, ry = 0.05,
from = pi/2, to = 3*pi/2, col = "darkblue",
len = 0.1, angle = 90)
``` |

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