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

This function returns the circumcircle of a triangle.

1 | ```
circum(x, y)
``` |

`x` |
Vector of three elements, giving the x coordinatres of the triangle nodes. |

`y` |
Vector of three elements, giving the y coordinatres of the triangle nodes. |

This is an interface to the Fortran function CIRCUM found in TRIPACK.

` x ` |
'x' coordinate of center |

` y ` |
'y' coordinate of center |

` radius ` |
circumcircle radius |

` signed.area ` |
signed area of riangle (positive iff nodes are numbered counter clock wise) |

` aspect.ratio ` |
ratio "radius of inscribed circle"/"radius of circumcircle", varies between 0 and 0.5 0 means collinear points, 0.5 equilateral trangle. |

This function is mainly intended to be used by `circumcircle`

.

Fortran code: R. J. Renka, R code: A. Gebhardt

R. J. Renka (1996). Algorithm 751: TRIPACK: a constrained
two-dimensional Delaunay triangulation package.
ACM Transactions on Mathematical Software.
**22**, 1-8.

1 |

tripack documentation built on May 29, 2017, 9:52 p.m.

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