mesh.diff

mesh.intersect

mesh.union

A matrix with 2 columns (3 in
  <code>mesh.dsphere</code>), each row representing a point in
  the plane.

vectorized function describing region A in
  the union / intersection / difference

regionA

vectorized function describing region B in
  the union / intersection / difference

regionB

additional arguments passed to <code>regionA</code>
  and <code>regionB</code>

Compute the signed distances from points <code>p</code> to a
  region defined by the difference, union or intersection
  of regions specified by the functions <code>regionA</code> and
  <code>regionB</code>. <code>regionA</code> and <code>regionB</code> must
  accept a matrix <code>p</code> with 2 columns as their first
  argument, and must return a vector of length
  <code>nrow(p)</code> containing the signed distances of the
  supplied points in <code>p</code> to their respective regions.

This package makes the qhull library (www.qhull.org)
        available in R, in a similar manner as in Octave and MATLAB.
        Qhull computes convex hulls, Delaunay triangulations, halfspace
        intersections about a point, Voronoi diagrams, furthest-site
        Delaunay triangulations, and furthest-site Voronoi diagrams. It
        runs in 2-d, 3-d, 4-d, and higher dimensions. It implements the
        Quickhull algorithm for computing the convex hull. Qhull does
        not support constrained Delaunay triangulations, or mesh
        generation of non-convex objects, but the package does include
        some R functions that allow for this. Currently the package
        only gives access to Delaunay triangulation and convex hull
        computation.

mesh.diff: Difference, union and intesection operation on two regions

Description

Usage

Arguments

Value

See Also