Description Usage Arguments Details Value Author(s) See Also Examples

Draw one or more elliptic (or circular) arcs from `theta.1`

to `theta.2`

on an existing plot using classic graphics.

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`x, y` |
a vector (or scalar) of xy-coordinates of the center(s) of the arc(s). |

`rx` |
a scalar or a vector giving the semi-major axis of the ellipse for the arc(s) |

`ry` |
a scalar or a vector giving the semi-minor axis of the ellipse for the arc(s). Default is radius.x which will result in a circle arc with radius.x. |

`theta.1` |
a scalar or a vector of starting angles in radians. |

`theta.2` |
a scalar or a vector of ending angles in radians. |

`nv` |
number of vertices used to plot the arc. Scalar or vector. |

`col` |
color for the arc(s). Scalar or vector. |

`lty` |
line type used for drawing. |

`lwd` |
line width used for drawing. |

`plot` |
logical. If |

All parameters are recycled if necessary.

Be sure to use an aspect ratio of 1 as shown in the example to avoid distortion.

`DrawArc`

invisibly returns a list of the calculated coordinates for all shapes.

Andri Signorell <[email protected]>

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