Signed distance from points `p`

to boundary of circle to
allow easy definition of regions in `distmesh2d`

.

1 | ```
mesh.dcircle(p, radius = 1, ...)
``` |

`p` |
A matrix with 2 columns (3 in |

`radius` |
radius of circle |

`...` |
additional arguments (not used) |

A vector of length `nrow(p)`

containing the signed
distances to the circle

Raoul Grasman; translated from original Matlab sources of Per-Olof Persson.

http://persson.berkeley.edu/distmesh/

P.-O. Persson, G. Strang, A Simple Mesh Generator in MATLAB. SIAM Review, Volume 46 (2), pp. 329-345, June 2004

`distmesh2d`

, `mesh.drectangle`

,
`mesh.diff`

, `mesh.intersect`

,
`mesh.union`

1 |

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