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  1. Jan 08, 2010
  2. Dec 05, 2009
    • bbarber's avatar
      First cut at a C++ interface to Qhull. · e17d98e0
      bbarber authored
      Includes QTest files for each class and user-eg3.c for demonstrating the interface.
      See src/Changes.txt for change notes and to do.
      See FIXUP for problems
      See WARN64 for 64-bit problems
      e17d98e0
    • bbarber's avatar
      qhull 2002.1 2002/8/20 -- Contents of qhull-2002.1.tgz · fb7d9109
      bbarber authored
      Changes to distribution:
       - Set up savannah.nongnu.org/projects/qhull/ [R. Laboissiere]
       - Set up www.thesa.com as a backup
       - Added qh-get.htm, a local copy of the download page
       - Added Visual C++ interface to Qhull, qhull_interface.cpp [K. Erleben]
       - Use HTTP instead of FTP for downloading Qhull
       - Renamed qhull-1.0.sit.hqx
      
      Bug fixes:
       - Fixed sign of coefficients for cdd halfspaces ('FD','Fd')  [T. Abraham]
      
      Changes to code:
       - Replace qh_version with qh_VERSION in qhulllib.h.
         Allows shared libraries and single point of definition
       - Added qh.TESTpoints for future implementation of tsearch
      
      Changes to build
       - Makefile.txt works under cygwin
       - Added Make-config.sh to create a Debian build [R. Laboissiere]
       - Added .exe to Makefile.txt#clean.
       - In README, use -fno-strict-aliasing with gcc-2.95.1 [Karas, Krishnaswami]
       - Fixed chmod in Makefile.txt [B. Karas]
      
      Documentation updates
       - Documented input options for each program [A. Montesinos]
       - FAQ: "How to get the radii of the empty spheres for Voronoi vertices"
      
      URL updates:
       - Changed official URL from locate/qhull to software/qhull
       - Changed URLs from relative to absolute in qh-home.htm and qh-get.htm
       - Added URL for Newsgroup: comp.soft-sys.matlab
       - Added URL for GNU Octave
       - Added URLs for Google and Google Groups
       - Replaced qhull_mail.html and qhull_bug.html with mailto links.
       - Removed URL for Computational Geometry Tribune
       - Changed URL for locate/cglist to software/cglist
       - Used site relative links for qh-home.htm
    • unknown's avatar
      qhull 3.0 2001/02/11 -- Contents of qhull3.0.tar.gz · dff2d0e6
      unknown authored
      Changes to distribution
       - added qconvex, qdelaunay, qhalf, and qvoronoi
       - added qhull-interface.cpp on calling Qhull from C++ [K. Erleben]
       - renamed to qhull3.0/.
       - added eg/, html/, and src/ directories
      
      Changes to URLs
       - MathLab6 qhull: convhulln, delaunayn, griddatan, tsearchn, vororoin [Z. You]
       - Wolfram Research wrote a Mathematica interface for qdelaunay [Hinton]
       - Geomview moved from www.geom.umn.edu to www.geomview.org [M. Phillips}
       - added URLs for tcsh and cygwin to README.txt
      
      Changes to documentation
       - reorganized table of contents and renamed qh-man.htm to index.htm
       - wrote program documentation, dropped qh-opt.htm and qh-optv.htm
       - added quick reference, qh-quick.htm
       - reorganized qh-rbox.htm and renamed it to rbox.htm
       - split up qh-c.htm for quick navigation
      
      Corrections to code
       - fixed type of arg for error message in qh_initqhull_globals [N. Max]
       - fixed incorrect initialization of qh MINdenom_1 for scalepoints
       - fixed drop dim for 'H Qbk:0Bk:0'.  Added qh.feasible_point to qh_projectinput
       - qh_WARNnarrow is angle between facet normals.  Negate for warning message.
       -   statistics for Wangle/etc. concerns facet normals.  Reworded [E. Voth]
       - fixed error message for 'FC v'
       - report cospherical points if Delaunay and error in qh_scalelast()
      
      Changes to code
       - turn on Pg if (QVn or QGn) and not (Qg or PG)
       - turn on Qc if format option 'Fc', 'FP', or 'Gp' (removes warning)
       - removed last good facet unless ONLYgood ('Qg').
       - added count of non-simplicial or merged facets to 'FS'
       - added count of non-simplicial facets to 's' (OK if #vertices==dim)
       - added Znonsimplicial and Znowsimplicial to 'Ts'
       - allow Mathematica output of dual polytope for halfspace intersection
       - added qh_checkflags to globals.c for multiple front ends
       - qh_initqhull_globals sets qh.MERGING if qh.MERGEexact
       - removed hashentryT.  It is no longer used.
      
      Changes to prompts and warnings
       - reorganized prompts
       - reorganized synopsis for rbox.c
       - print warning if 'Fc' or 'FP' with 'd QJ'.  Coincident points are unlikely.
       - ignore warning if options 'v i Pp'.  qvoronoi users may need Delaunay tri.
       - reworded warning if 'Pg' and 'QVn' is not a vertex.
       - reworded warning for 'Qx Tv', qh_check_points() in poly2.c
       - if 'Pp', turn off warning for 'Qbb' without 'd' or 'v'
       - in qh_printsummary() of Voronoi and Delaunay, distinguish QVn, QGn, Pdn, PDn
      
      Changes to FAQ
       - added FAQ item for nearly flat Delaunay triangles [Z. You]
       - added FAQ item for area and volume [R. Konatham]
       - added FAQ item for Voronoi diagram of a square [J. Yong]
       - edited FAQ item on point location in Delaunay triangles [Z. You]
       - added FAQ item on nearly flat Delaunay triangles [Dehghani]
       - added FAQ item about halfspace intersection [V. Tyberghein]
       - added FAQ item for missing ridges [M. Schmidt]
       - added FAQ item about qh_call_qhull [R. Snyder]
       - added FAQ item about memory statistics [Masi]
       - added FAQ item on meshing non-convex objects
       - added FAQ item on MATLAB and Mathematica interface
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