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  1. Jan 23, 2010
  2. Jan 10, 2010
  3. Jan 09, 2010
    • Brad Barber's avatar
      Fix tabs in Makefile.txt [mschamschula] · ec840223
      Brad Barber authored
      Order object files by frequency of execution for better locality.
      ec840223
    • Brad Barber's avatar
      qhull 2009.1 2009/06/14 Debian build with updated Autotools · 0b1c2aa8
      Brad Barber authored
      Source for qhull-2009.1.tar.gz from http://savannah.nongnu.org/projects/qhull
      and http://www.qhull.org/download/qhull-2009.1.tar.gz
      
      cvs -d:pserver:anonymous@cvs.sv.gnu.org:/sources/qhull co debian qhull
      
      Moved debian directory two levels down from above qhull (..) to project/
      It will need updating for its new location.
      
      Placed all Makefile-am files in config/
      
      This is a maintenance release done by Rafael Laboissiere <rafael@debian.org>.
       - src/rbox.c (main): Avoid problems of evaluation order when
         pre-incrementing arguments of strtod
       - src/io.c (qh_produce_output), src/stat.c (qh_initstatistics): Use %lu
         instead of %d in the format string for arguments of type size_t
       - html/qhull.man, html/rbox.man: Fix several syntax, macros, and hyphen
         problems in man pages
       - The Autotools files have been generated with modern version of autoconf (2.63),
         automake/aclocal (1.10.2), and libtool (2.2.6)
       - Some character issues in the man pages are fixed
  4. 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 2003.1 2003/12/30 -- Contents of qhull-2003.1-src.tgz · 2430d4a4
      bbarber authored
      New Features:
       - Add Maple output ('FM') for 2-d and 3-d convex hulls [T. Abraham]
      
      Breaking Code Changes:
       - Annotate C code with 'const'.  An ANSI compatible compiler is required.
      
      Bug Fixes and Code Changes:
       - Fixed qh_findbest() for upperdelaunay facets w/o better, lower neighbors
           For library users and some qhull users [A. Cutti, E. Milloti, K. Sun]
       - Preserved qhmem.ferr in qh_memfreeshort() for library users
       - Removed 'static' from qh_compare... for io.h and merge.h [V. Brumberg]
       - Split out qh_initqhull_start2() to avoid allocating qh_qh
       - Split out qh_freeqhull2() to avoid freeing qh_qh
       - Split out qh_produce_output2() and qh_prepare_output()
       - qh_initstatistics() frees a previously existing qh_qhstat
       - qh_initqhull_start2() checks that qh_initstatistics() called first
      
      Documentation:
       - Add warning to findDelaunay() and qh_in.htm about tricoplanar facets
       - Noted Edelsbrunner's Geometry & Topology for Mesh Generation [qh-impre.htm]
       - Noted Gartner's Miniball algorithm [qh_impre.htm]
       - Noted Veron and Leon's shape preserving simplification [qh_impre.htm]
      
      qhull 2003.1  2003/12/19
      
      Bug Fixes:
       - Reversed coordinate order for qh.ATinfinity in qh_projectinput [V. Brumberg]
         This effects:
           Qhull library 'd' or 'v' users with 'Qz' and unequal coordinate ranges.
           qdelaunay/qvoronoi users with 'Qbk:0Bk:0', 'Qz', and unequal coordinate ranges
      
      Changes to code:
       - Replaced qh_VERSION with qh_version in global.c [B. Pearlmutter]
          The previous techniques were either clumsy or caused compiler errors
       - Removed unused variables from qh_findbest and qh_findbestnew [B. Pearlmutter]
       - Note that qh.TESTpoints was added in 2002.1 for tsearch implementation
      
      Changes to distribution:
       - Added Unix distribution including Debian files [R. Laboissiere]
          The previous Unix distribution is now the source distribution
       - Added rpm distribution [L. Mazet]
       - Investigated generation of Win32 dll.  Need to define a C++ interface.
      
      Changes to documentation:
       - Moved Qhull to www.qhull.org (geom.umn.edu is not available)
       - The Geometry Center is archived at http://www.geom.uiuc.edu
       - Reviewed introduction to each program
          Triangulated output ('Qt') is more accurate than joggled input ('QJ')
          qdelaunay is 'qhull d Qbb' [C. Ulbrich]
          qvoronoi is 'qhull v Qbb'
          Added example of non-simplicial intersection to halfspace intersections
       - Added warning about using the Qhull library.
       - Added qhull timings to When to use Qhull [C. Ulbrich]
       - Reorganized the home page index and the manual index
       - Moved qh-home.htm to index.htm
      
      Changes to examples
       - Fixed options for eg/eg.t23.voronoi.imprecise [B. Pearlmutter]
    • 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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