Programs for the algorithmic distribution of points, especially in or on spheres, and the analysis and display of these distributions. Areas of interest include ball packs, shell packs, polyhedra and cellular automata.
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Packinon has changed its name and is now called Antiprism. Packinon is a collection of command line programs for modelling with polyhedra, packing balls and distributing points on a sphere. Future development as Antiprism will focus on polyhedron modelling and creating a graphical interface for the modelling tools. The new site and project page are http://www.antiprism.com/ http://sourceforge.net/projects/antiprism/
IMPORTANT NOTE: Version 0.08 is the last Packinon release. Development continues under the name of Antiprism, with a new website and a new Sourceforge project. The next code release will be Antiprism 0.09. Antiprism site - http://www.antiprism.com Antiprism project - http://sourceforge.net/projects/antiprism Version 0.08 08-09-06 Adrian Rossiter <adrian@antiprism.com> New Programs jitterbug: jitterbug transformation off2crds: extract coordinates from OFF file Changes Fixes Version 0.07 03-09-06 Adrian Rossiter <adrian@antiprism.com> New Programs string_art: string figures Changes poly_kscope: symmetry notation. Th and Td switched. pol_recip: make topological dual with face centroids for vertices minmax: new algorithm, and algorithm option Fixes all: read files with arbitrary line length all: error checking when reading integers geodesic: check for non-triangulated input, read from stdin. Version 0.06 13-04-06 Adrian Rossiter <adrian@antiprism.com> New Programs poly_weave: converts a polyhedron to a weave Changes off_trans: -S accepts a single scale factor geodesic: options changed and reduced zono: options changed Fixes off2pov: removed infinite recursion from default include files in multiple file output geodesic: correctly calculates faces for all input zono: efficiency related limitations on star size removed Version 0.05 10-01-06 Adrian Rossiter <adrian@antiprism.com> Changes off2pov: output file made consistent and documented geodesic: orients output Fixes Debugging messages removed from some progams Various bug fixes. Version 0.04 16-12-05 Adrian Rossiter <adrian@antiprism.com> New Programs off_util: merging, orientation, precision, skeleton Changes off2pov: new options and more flexible output pol_recip: more useful radius options, handling of infinite vertices off_merge: functionality merged into off_util polygon: better sizing options, added self-intersecting polygon bases Fixes Error message for missing options for all programs off2pov: stereo setting, error writing values in Windows. Various bug fixes. Version 0.03 14-06-05 Adrian Rossiter <adrian@antiprism.com> First beta release of packinon programs. Changes to all programs. Code factoring, improved error checking and message text, consistent program behaviour. Numerous bug fixes. Enhancements to packer and off_trans. Expanded documentation. Version 0.02 24-05-05 Adrian Rossiter <adrian@antiprism.com> New programs - off_trans, off_align, poly_kscope options changes in off2pov Various bug fixes Version 0.01 15-02-05 Adrian Rossiter <adrian@antiprism.com> First release of packinon programs
IMPORTANT NOTE: Version 0.08 is the last Packinon release. Development continues under the name of Antiprism, with a new website and a new Sourceforge project. The next code release will be Antiprism 0.09. Antiprism site - http://www.antiprism.com Antiprism project - http://sourceforge.net/projects/antiprism Version 0.08 08-09-06 Adrian Rossiter <adrian@antiprism.com> New Programs jitterbug: jitterbug transformation off2crds: extract coordinates from OFF file Changes Fixes Version 0.07 03-09-06 Adrian Rossiter <adrian@antiprism.com> New Programs string_art: string figures Changes poly_kscope: symmetry notation. Th and Td switched. pol_recip: make topological dual with face centroids for vertices minmax: new algorithm, and algorithm option Fixes all: read files with arbitrary line length all: error checking when reading integers geodesic: check for non-triangulated input, read from stdin. Version 0.06 13-04-06 Adrian Rossiter <adrian@antiprism.com> New Programs poly_weave: converts a polyhedron to a weave Changes off_trans: -S accepts a single scale factor geodesic: options changed and reduced zono: options changed Fixes off2pov: removed infinite recursion from default include files in multiple file output geodesic: correctly calculates faces for all input zono: efficiency related limitations on star size removed Version 0.05 10-01-06 Adrian Rossiter <adrian@antiprism.com> Changes off2pov: output file made consistent and documented geodesic: orients output Fixes Debugging messages removed from some progams Various bug fixes. Version 0.04 16-12-05 Adrian Rossiter <adrian@antiprism.com> New Programs off_util: merging, orientation, precision, skeleton Changes off2pov: new options and more flexible output pol_recip: more useful radius options, handling of infinite vertices off_merge: functionality merged into off_util polygon: better sizing options, added self-intersecting polygon bases Fixes Error message for missing options for all programs off2pov: stereo setting, error writing values in Windows. Various bug fixes. Version 0.03 14-06-05 Adrian Rossiter <adrian@antiprism.com> First beta release of packinon programs. Changes to all programs. Code factoring, improved error checking and message text, consistent program behaviour. Numerous bug fixes. Enhancements to packer and off_trans. Expanded documentation. Version 0.02 24-05-05 Adrian Rossiter <adrian@antiprism.com> New programs - off_trans, off_align, poly_kscope options changes in off2pov Various bug fixes Version 0.01 15-02-05 Adrian Rossiter <adrian@antiprism.com> First release of packinon programs
12-01-05 -------- pg_geo.py now also produces Class III patterns. pg_saff.py uses a corrected algorithm.
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