Up: Downloadable Software from the
Geometry Center
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 handles roundoff errors from floating point arithmetic. It can approximate a convex hull.
Qhull change history, notes, news, and users.
Type: console program for Windows 95, 98, ME, 2000, NT, XP
Includes documentation and sources files. It runs in a DOS window.
Type: C source code for 32-bit and 64-bit architectures
Includes makefiles and instructions for Unix and Power MacOS. It should compile on other 32-bit and 64-bit operating systems.
Type: rpm build for Mandrake 8.2 and RedHat 7.3
For other Linux systems, use the src rpm [L. Mazet]
Sources for Qhull 2002.1 in CVS. Includes downloads of Qhull's current and previous versions.
Download Qhull's current and previous versions from Servidor WWW de la Escuela de Minas of the Universidad de Oviedo.
Backup web site for Qhull.
Type: Postscript file
Barber, C.B., Dobkin, D.P., and Huhdanpaa, H.T., "The Quickhull algorithm for convex hulls," ACM Transactions on Mathematical Software, vol. 22, pp. 469-483, Dec 1996 [abstract].
Type: C source code for 32-bit architectures
Version 1.0 is a fifth the size of version 2.4. It computes convex hulls and Delaunay triangulations. If a precision error occurs, it stops with an error message. It reports an initialization error for inputs made with 0/1 coordinates.
Version 1.0 compiles on a PC with Borland C++ 4.02 for Win32 and DOS Power Pack. The options for rbox are "bcc32 -WX -w- -O2-e -erbox -lc rbox.c". The options for qhull are the same. [D. Zwick]
Type: C source code, packaged for Macintosh w/68881
The Macintosh implementation of Qhull 1.0 reads input from a file and returns the results to a file. The code is compiled for a 68881 floating point coprocessor. The package includes Think C projects for Qhull and the rbox input generator.
Up: Downloadable Software from the
Geometry Center
Comments to: webmaster@geom.umn.edu
Created: Feb 28 1995 ---
Last modified: November 2, 2001