Triangulation of irregularly spaced data

add.constraint	Add a constraint to an triangulaion object
convex.hull	Return the convex hull of a triangulation object
identify.tri	Identify points in a triangulation plot
in.convex.hull	Determines if points are in the convex hull of a triangulation object
neighbours	List of neighbours from a triangulation object
on.convex.hull	Determines if points are on the convex hull of a triangulation object
outer.convhull	Version of outer which operates only in a convex hull
plot.tri	Plot a triangulation object
plot.voronoi	Plot a voronoi object
print.summary.tri	Print a summary of a triangulation object
print.summary.voronoi	Print a summary of a voronoi object
print.tri	Print a triangulation object
print.voronoi	Print a voronoi object
summary.tri	Return a summary of a triangulation object
summary.voronoi	Return a summary of a voronoi object
tri	A triangulation object
tri.find	Locate a point in a triangulation
tri.mesh	Create a delaunay triangulation
triangles	Extract a list of triangle from a triangulation object
voronoi	Voronoi object
voronoi.mosaic	Create a Voronoi mosaic