R: Circle distance function

mesh.dcircle {geometry} | R Documentation

## Circle distance function

### Description

Signed distance from points `p` to boundary of circle to allow easy definition of regions in `distmesh2d`.

### Usage

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

### Arguments

`p` | A matrix with 2 columns (3 in `mesh.dsphere`), each row representing a point in the plane.
`radius` | radius of circle
`...` | additional arguments (not used)

### Value

A vector of length `nrow(p)` containing the signed distances to the circle

### Author(s)

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

### References

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

### See Also

`distmesh2d`, `mesh.drectangle`, `mesh.diff`, `mesh.intersect`, `mesh.union`

### Examples

    example(distmesh2d)

[Package geometry version 0.4.2 Index]