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.
|Author||C. B. Barber [cph], Kai Habel [cph, aut], Raoul Grasman [cph, aut], Robert B. Gramacy [cph, aut], Andreas Stahel [cph, aut], David C. Sterratt [cph, aut, cre]|
|Date of publication||2015-09-09 13:47:14|
|Maintainer||David C. Sterratt <firstname.lastname@example.org>|
|License||GPL (>= 3) + file LICENSE|
bary2cart: Conversion of Barycentric to Cartesian coordinates
cart2bary: Conversion of Cartesian to Barycentric coordinates.
convhulln: Compute smallest convex hull that encloses a set of points
delaunayn: Delaunay triangulation in N-dimensions
distmesh2d: A simple mesh generator for non-convex regions
distmeshnd: A simple mesh generator for non-convex regions in n-D space
dot: Compute the dot product of two vectors
entry.value: Retrieve or set a list of array element values
extprod3d: Compute external- or 'cross'- product of 3D vectors.
matmax: Row-wise matrix functions
mesh.dcircle: Circle distance function
mesh.diff: Difference, union and intesection operation on two regions
mesh.drectangle: Rectangle distance function
mesh.dsphere: Sphere distance function
mesh.hunif: Uniform desired edge length
polyarea: Determines area of a polygon by triangle method.
surf.tri: Find surface triangles from tetrahedra mesh
tetramesh: Render tetrahedron mesh (3D)
trimesh: Display triangles mesh (2D)
tsearch: Search for the enclosing Delaunay convex hull
tsearchn: Search for the enclosing Delaunay convex hull
Unique: Extract Unique Rows