geometry (version 0.3-6)

mesh.drectangle: Rectangle distance function

Description

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

Usage

mesh.drectangle(p, x1 = -1/2, y1 = -1/2, x2 = 1/2, y2 = 1/2, ...)

Arguments

p

A matrix with 2 columns, each row representing a point in the plane.

x1

lower left corner of rectangle

y1

lower left corner of rectangle

x2

upper right corner of rectangle

y2

upper right corner of rectangle

…

additional arguments (not used)

Value

a vector of length nrow(p) containing the signed distances

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

# NOT RUN {
example(distmesh2d)
# }