| interp-package | Interpolation of data |
| arcs | Extract a list of arcs from a triangulation object. |
| area | Extract a list of triangle areas from a triangulation object. |
| circles | Add circles to a plot |
| convex.hull | Return the convex hull of a triangulation object |
| franke | Test datasets from Franke for interpolation of scattered data |
| franke.data | Test datasets from Franke for interpolation of scattered data |
| franke.fn | Test datasets from Franke for interpolation of scattered data |
| identify.triSht | Identify points in a triangulation plot |
| in.convex.hull | Determines if points are on or in the convex hull of a triangulation object |
| interp | Interpolation function |
| interpp | Pointwise interpolate irregular gridded data |
| left | Determines if a point is on or left of the vector described by two other points. |
| locpoly | Local polynomial fit. |
| nearest.neighbours | Nearest neighbour structure for a data set |
| on | Determines if a point is on or left of the vector described by two other points. |
| on.convex.hull | Determines if points are on or in the convex hull of a triangulation object |
| outer.convhull | Version of outer which operates only in a convex hull |
| plot.triSht | Plot a triangulation object |
| plot.voronoi | Plot a voronoi object |
| plot.voronoi.polygons | plots an voronoi.polygons object |
| print.summary.triSht | Print a summary of a triangulation object |
| print.summary.voronoi | Print a summary of a voronoi object |
| print.triSht | Print a triangulation object |
| print.voronoi | Print a voronoi object |
| summary.triSht | Return a summary of a triangulation object |
| summary.voronoi | Return a summary of a voronoi object |
| tri.find | Locate a point in a triangulation |
| tri.mesh | Delaunay triangulation |
| triangles | Extract a list of triangles from a triangulation object |
| triSht | A triangulation object |
| voronoi | Voronoi object |
| voronoi.area | Calculate area of Voronoi polygons |
| voronoi.findrejectsites | Find the Voronoi sites at the border of the region (to be rejected). |
| voronoi.mosaic | Voronoi mosaic |
| voronoi.polygons | extract polygons from a voronoi mosaic |