NEWS File
NEWS for Antiprism: http://www.antiprism.com
Version 0.31
08-07-23 Adrian Rossiter <adrian@antiprism.com>
New Programs
Changes
obj2off: now uses companion .mtl file to transfer colors to off
build: remove debian packging directory
Fixes
resource models: corrected std_rd, std_rt, std_re
off2txt: change default for -d to -16, decimals only
symmetry: missing Cs subgroup for Oh and Cv
off2obj: corrected obj file format
unitile2d: correct mobius strip at join
canonical: won't change model which is already canonical at -l n
won't change model but will report statistics when -n 0
Version 0.30
10-01-23 Adrian Rossiter <adrian@antiprism.com>
New Programs
sweep_edges: sweep edges to make a surface
Changes
canonical:
-V, W coloring options added
-F, -J convexity coloring added
-Y to realign output
off_color: add missing adjacent element colourings -f V, E
and -e V
wythoff: -C add vertex colouring, 'value' method removed, 'index'
method colours by value. Add -m colormap option.
conway: added element colorings -V n,s,u,d -E s,v,f,d and -F v
added planarization options make_canonical, no planarization
added special convexity colorings
miller: added color options -V f,n
stellate: added color options -V f,n
off_color_radial: added -V color and option f
added -E color and options e,f
symmetro: added m3 built in color map for better number of sides
off_normals: restored -t options to add element centers to normals
johnson: updated j88-j90 formulas. documented other formulas
uniform: substring search removed
polygon: orientation changed for models 2 -s2, 2 -s4, 4, 5, 6, 8,
construction changed for some models 5 -s3
lat_grid: move to extra programs
n_icons: added -b don't split bow-tie faces for twisting
added -g make m2 longitudes (-M) invisible instead of deletion
added -C color ... circuits with first two colors
added -B compound part counts to -L listing options
added -D to change d (of n/d) from default of 1
-I: added circuit counting and comparison to theoretical values
added compound part calculations. hybrid compound part
calculations work for odd d but not yet for even d
added -f C compound coloring with polygon
removed -f a compound coloring by parts
help: added alternate names and wenninger numbering sections
build: minimum autoconf version changed to 0.69
Fixes
resource models: large geodesic duals corrected
polygon: fix -L, make 1 -s2 when -a is used
planar/off_report: fixed winding counts algorithm
Version 0.29
01-11-21 Adrian Rossiter <adrian@antiprism.com>
New Programs
tetra59: generate the 59 tetrahedra with rational dihedral angles
Changes
to_nfold: use base colours
wythoff: allow any path
off_color: -e nN colour edges by number of connected faces
Fixes
dome_layer: honeycomb connections
unitile2d: surface closing
wythoff: paths not starting with index
Version 0.28
13-02-21 Adrian Rossiter <adrian@antiprism.com>
New Programs
poly_form: rename from minmax, rename options, add -y
for symmetry constraint, add -a e equal-edge algorithm
and -a p planarisation
Changes
to_nfold: add -x, -p to help with crossed models
minmax: rename to poly_form
repel: add -z for status reporting
rotegrity: remove -T (old twist program output)
col_util: add -w for control of color grid and (new) color bars
-I can exclude map indexes from color grid
-r cube as new default container in HSV/HSL mode
-R to optionally show primary and secondary reference colors
-U adds simple sorting of colors along with already unique sort
-M default color system mode is now HSL
planar:
-V verbose lists all winding numbers found in a model
-n map entries is now calculated
-M default color system mode is now HSL
wythoff: new operators and new and changed operator sequences
(see 'wythoff -c list'), extend colour by associated element
conway: new format for conway operators with 2 numbers e.g L_n:r
new operators added, B,E,G,W
operators L, l and X may now take subscripts
operator u, e and o may now take two subscripts
base subscripts updated
status reporting method update
-p removed, plarization options, now done internally
-O removed, pattern strings didn't add value
-R removed, built in seed coloring didn't add value
off_color_radial:
-m rainbow map entries calculated like rng
canonical:
-S, R, D coloring options added
-O Output type convex hull added
-c c circle packings, new algorithm added
-C,-f new options for -c c
-p p fast planarize added
-p removed, (old p) face centroids and centroids magnitude
-p removed, u make unit edge
-x removed, normal types, since all normals are unit normals
-r removed, initial radius, always nearpoints = 1
-C removed, initial centering, always centered on edge nearpoints
-A removed, alternate algorithm no longer needed
build: compile with C++14
Fixes
usage helps reviewed and organized
minor bug fixes and improvements
major code review with fixes for potential issues
Version 0.27
01-10-20 Adrian Rossiter <adrian@antiprism.com>
Changes
off_color: new -e jJ to colour by edge length
zono: -P add spirallohedra, new -T translation product
conway: g and s take a numeric parameter
Fixes
off2vrml: avoid duplicate PROTO statements
minor bug fixes and improvements
Version 0.26
05-04-19 Adrian Rossiter <adrian@antiprism.com>
New Programs
rotegrity: make rotegrity and nexorade models
mmop_origami: multimodular polyhedron origami models
Changes
antiview: new keys 'u/U' change label size, 'M' planar
face labels
wythoff: new option -C for colouring by base elements
conway: new options -C colouring method, -R colour seed
geodesic, geo_m_n: change direction of pattern turn,
so (m, n) is like previous (n, m)
bravais: added inverse of f and i centering types
n_icons: swap -J and -L option letters
radial: renamed to off_color_radial
twist: removed (use rotegrity -T -f)
pol_recip: removed -r X (use wythoff -c d)
sph_saff: removed (use antiprism_python)
off2m,m2off: removed (Java applets no longer popular)
Fixes
minor bug fixes and improvements
Version 0.25.1
08-12-17 Adrian Rossiter <adrian@antiprism.com>
Fixes
build: issues affecting OSX, install all headers
Version 0.25
23-11-17 Adrian Rossiter <adrian@antiprism.com>
New Programs
stellate: polyhedron stellations (Roger Kaufman)
miller: Miller's stellations of the icosahedron (Roger Kaufman)
wythoff: Wythoff-style tilings on various surfaces
kaleido: Legacy program ported to Antiprism (Roger Kaufman)
radial: Color by symmetry radiating from axes (Roger Kaufman)
Changes
poly_weave: moved to unsupported programs
off2obj: added optional mtl file output
canonical: works on more models and code reorganization
added new planarization and display options
conway: changed to use wythoff engine while keeping legacy
code by George Hart. Enhancements and additional operators
to original conway operators
waterman: option to fill interior points
off_util: removed -E
Fixes
pol_recip: dual vertices for very small faces
poly_weave: input can be non-closed surface
off_util: -u input can be non-closed surface, -T works with
more models
antiview: default handling of large models
Version 0.24.1
18-11-16 Adrian Rossiter <adrian@antiprism.com>
Fixes
symmetro: docs
Version 0.24
08-10-16 Adrian Rossiter <adrian@antiprism.com>
New Programs
to_nfold: change the rotational symmetry of a polyhedron
symmetro: polyhedra with regular polygons at symmetry
axes (Roger Kaufman)
off2obj/obj2off: convert between OFF to Wavefront OBJ
format (Roger Kaufman)
off2dae: convert OFF to Collada (DAE) format
Changes
off_util: process options in command line order,
incorporate -b into -M, expand -D and add -K to keep
elements (Roger Kaufman), expand documentation.
minmax: new option -a u, make faces regular. Improve
reporting.
leonardo: orient models, new options -c centre, -p panel faces,
-k don't orient
zono: -P add nonconvex models, new option -S zonish polyhedra
off_normals: options -t and -m removed
off_color: new edge direction colourings -e ldD
antiview: 'O' to show orientation, 't' includes 50%
transparency
build: native Debian/Ubuntu package build, support FLTK GLUT
Fixes
off_util -u: natural unfolding for positive orientation
off_align: fix crashes
off2pov: fix compatibility with POV-Ray 3.7
symmetry: fix missing subsyms
minor bug fixes
Version 0.23
11-03-13 Adrian Rossiter <adrian@antiprism.com>
New Programs
iso_kite: isohedral kite-faced polyhedra
Changes
Floating point arguments can be mathematical expressions
(sqrt prefix changed to rt, e.g. rt5)
off_util: merge preserves original element order
off_query: report element colours
off_color: GgCc colourings now use z-axis for height.
polygon: new crown polyhdron types
planar: -W takes a colouring argumant
Symmetry: symmetry alignment should not realign an
aligned polyhedron, element orbits ordered by lowest
index number
Resource models: Johnson models are symmetry aligned
(append _raw for old alignment).
Build: install directories do not include version number
Fixes
leonardo: -o outputs to file
Build: support 'configure --docdir' option, fix errors
and warnings when building with clang
Version 0.22
22-10-12 Adrian Rossiter <adrian@antiprism.com>
New Programs
None
Changes
Resource models: element index numbers may have changed.
Uniform polyhedra (U models) calculated by formula
rather than "kaleido" code (Roger Kaufman)
Standard uniform models use new U models, many resource
models may be prefixed by std_ (Roger Kaufman).
New resource models: Wythoff construction (wythoff_ ),
Schwarz triangle (schwarz_), regular polygon (pol)
lat_util: -R takes extra blending option
off_util: -b default is rgb
planar: various option changes and new options
Fixes
Some Johnson polyhedra not connected correctly
Some errors reading OFF files were not reported
Finds OpenGL headers on OS X (untested)
Portability of timing code
Other small fixes.
Version 0.21
26-03-12 Adrian Rossiter <adrian@antiprism.com>
New Programs
off_normals: new program for working with normals (Roger
Kaufman)
leonardo: creates Leonardo da Vinci style models
Changes
off_query: Vg for vertex figures (Vn for connections only)
off_report: windings of vertex figures added, more
connectivity information
off_util: -O takes an argument, -t 'triangulate' is synonym
for nonzero, abs_geq_two removed
conv_hull: hulls are positively oriented. Better check for
2D models in dimension-safe convex hull.
antiview,off2pov,off2vrml: -t abs_geq_two removed
Models: Coxeter, Wenninger and Kaleido numbers as alternative
names for uniforms (Roger Kaufman).
Fixes
Some Johnson polyhedra not connected correctly
waterman: not producing correct output
Triangulation not applying winding rules to triangle faces
planar: disallows creation of zero length edges
Miscellaneous small fixes.
Version 0.20
13-02-12 Adrian Rossiter <adrian@antiprism.com>
New Programs
lat_util: new program for lattice utilities (by Roger
Kaufman)
col_util: new program for colour utilities, plots, blend
(by Roger Kaufman)
planar: new program for blending colours of overlapping
coplanar polgons (by Roger Kaufman)
Changes
poly_kscope: new options, -c colours a compound by part,
-s use symmetries of another polyhedron, subgroup support,
-Q report
off_report: new options, -S s symmetry -C h hts, -C O orbits
off_query: new query EC for edge centroids
off_trans: new options -Y, -y symmetry alignment,
rotate a pair of vectors onto another moved from -A to -R
off_align: considerable option changes, -Ff select alignment
from list, -y repeat brick symmetrically
off_util: new optionis: -H for general help; -u to unfold a
polyhedron net; -x V deletes free vertices; -D deletes
elements; -A adds elements; -g strips colours and digons;
-t new triangulations.
off_color: options -m -M -c combined as option -m. Lower
case colourings always set index, upper case colourings
always apply colour map. Default colour map is 'rand'.
New options -vef sS to colour elements by symmetry orbit,
-f aA to colour by average internal angle,
-f kK to colour sets of faces connected by face sides,
-e Kk to colour sets of edges connected by edges,
-vef M to convert colour indexes to values using map
-U select elements to colour by colour type
-I to convert colour values to indexes
unipoly,johnson: programs removed, models are in resources
see 'off_util -H uniform' and 'off_util -H johnson'
polygon: many new models added, antiprism alignment changed
geodesic: option reorganisation, remove base models
bravais: option -R also fills and overlays with cubes
iso_delta: new colouring options
n_icons: fractional polygon models, colouring option
changes
pol_recip: default centre is centroid, new option -a
appends dual to original geometry
antiview,off2vrml,off2pov: new option -s to display
symmetry elements, -I infinity distance default 1000
-t triangulation options
off2m: new option -x to exclude elements, -X removed
minmax: new ellipsoid and superellipsoid surfaces, default
algorithm is v
poly_weave: use general weave patterns
Resources: new colour map files and generatable maps,
uniform and Johnson model files removed and are now
internal unit-edged and coloured, new uniform
compounds (by Roger Kaufman), uniform duals,
general duals (appending _d), geodesic spheres,
symmetry models
Documentation: document library, add man pages,
All: --help and --version options. New shift, step,
and wrap modifiers for reindexing colour maps
Fixes
lat_grid: origin is the default centre for -c s
Version 0.19.1
02-12-08 Adrian Rossiter <adrian@antiprism.com>
Fixes
build: will build with GCC 4.3
off_color: -e p outputs colour index numbers
Version 0.19
28-11-08 Adrian Rossiter <adrian@antiprism.com>
New Programs
bravais: generates Bravais lattices, and their reciprocal
lattices and Dirchlet regions (by Roger Kaufman)
waterman: generates Waterman polyhedra (by Roger Kaufman)
Changes
all: new colour name 'invisible' for hiding elements
off_trans: all options are applied in the order they are
given. -s Ee uses explicit edges if any are present,
otherwise uses implicit edges. New option -S r to scale
a polyhedron into a unit sphere. New transformation -a
that makes particular angles between the mapped axes.
New transformation -A that aligns two pairs of vectors
or two sets of three points.
lat_grid: HCP added
packer: program removed
off2eig: moved to extra programs
Fixes
geodesic: polyhedra with square faces no longer
have invalid coordinates for some vertices.
off_trans: -s prints an error message if there are no
elements of the appropriate type.
minmax: initial placement of vertices working
lat_grid: y and z coordinates not swapped
antiview, off2pov: vertex number displays for a vertex at
the centre
antiview: no edge rods are "flipped"
Version 0.18.1
06-06-08 Adrian Rossiter <adrian@antiprism.com>
build: corrected issues related to strict aliasing which
caused some programs to crash in some situations when
built with recent versions of GCC using default options
Version 0.18
23-05-08 Adrian Rossiter <adrian@antiprism.com>
New Programs
iso_delta: makes isohedral deltahedra (by Roger Kaufman)
Changes
poly_kscope: alignment of T, O and I types to have 3-fold
axis in direction of (1, 1, 1)
lat_grid: added K_4 crystal and HCP diamond
Fixes
build: corrected issues related to strict aliasing which
caused some programs to crash when built with recent
versions of GCC using default options
poly_kscope: Dvn and Sn work for all valid n
Version 0.17.1
14-01-08 Adrian Rossiter <adrian@antiprism.com>
Fixes
conway, off2m: compatible with amd64
build: document build options needed with some versions,
of GCC, and eliminate "deprecated conversion" warnings
off_color: -e R works
off_align: test reporting removed
Version 0.17
06-01-08 Adrian Rossiter <adrian@antiprism.com>
New Programs
conway: Conway Notation transformations (adapted from
George Harts Javascript implemenation by Roger Kaufman)
johnson: makes Johnson polyhedra
Changes
all: index 0 is now treated as an ordinary index.
off_color: -fev uses -1 to clear colours
antiview: accepts -geometry argument when supported
antiview, off2*: default centre is centroid if it allows a
smaller container
off_util: new option -T truncates a polyhedron
off_align: align and bond by face index, option -p
argument order changed
canonical: various option changes, alternative
canonicalization algorithm, new option to planarize
polygon: make cupolas, orthobicupolas and gyrobicupolas
off_query: reports nonplanarity of faces
resources: added several scripts, two colour maps, uniform
and Johnson polyhedra, polygon based polyhedra. Enabled
alternative names for resource files
Fixes
pol_recip: centres C, M, have sensible default radius (E)
off_util: -d accepts a negative integer
off_query: no bogus warning when using -I
antiview: -I works
Version 0.16
25-11-07 Adrian Rossiter <adrian@antiprism.com>
New Programs
n_icons: creates conicon-like polyhedra (by Roger Kaufman)
Changes
off_color: new options -v F/E colours vertices average of
adjoining face/edge colours. -e F now uses average. New
option -M selects element types to apply colour map to.
Option -m searches for installed colour map files. GIMP
Palette and Fractint colour map file formats supported.
all: colours given on the command line or in colour map
files can be given using the X11 rgb.txt colour names
unitile2d: new "shear" option -S
antiview: new spin mode and reset command, new option -m
to use a colour map
antiview,off2pov,off2vrml,off2m: use bounding box rather
than minimum enclosing ball for camera positioning
Fixes
pol_recip: centres v, V, a and A now work
build: don't pass directory names to install without -d,
check for X library and include paths for OpenGL (not
in Cygwin)
packer: typos in help text
antiview,off2pov,off2vrml,off2m: avoid hangs when opening
some OFF files
Version 0.15
22-08-07 Adrian Rossiter <adrian@antiprism.com>
New Programs
sph_saff: spirals points on a sphere using Saff and
Kuijlaars' method
sph_rings: rings of points on a sphere
Changes
all: changes to edge handling have required code changes to
nearly all the programs. Visible changes are listed below.
The edge handling policy is described in the documentation
in "Using Edges in Antiprism"
off2*,antiview: option -E must be a colour ('d' is now
automatic, 'f' moved to off_color -e F)
off2pov: edge display type variable e_dtype, and associated
POV macros removed from output
off_util: element filtering, option -x replaces option -F
off_color: -E selects edge type to colour, -e F colours
edges with face colours
off_report, off_query: -E selects edges for report
all: add version information to program help text
off2*,antiview: element colour 0,0,0,0 (shorthand 'x')
is used to indicate that an element should not be
displayed.
geodesic: map coloured edges and vertices, triangulate base
polyhedron
pol_recip: calculate default reciprocation centre and radius,
colour the dual elements like the base elements
antiview: fixed size element labels
canonical: new option -C for initial centering
off2eig: accept multiple files, new option to colour
springsets
off2pov,off2vrml,antiview: calculation of default vertex
sphere radius changed to 1/15 nearest pair, and
calculation now ignores very close vertices. Geometry
centre and width determined by minimum enclosing ball.
Changes to option -t, triangulate by default, use
GLU Tesselator when available.
off2m: triangulate by default, default vertex and edge
colours are the LG3D defaults
off2vrml: option -n for vertex number labels.
off_util: option -t to triangulate, when merging elements
have colour from first found element to be merged
build: choose OpenGLUT over standard GLUT in Windows. Remove
old build system Makefiles
Fixes
build: library dependencies
all: colour values in hex format don't corrupt argument list,
orientation of polyhedra with >70000 faces
off2vrml: centre polyhedron to have z coordinate of 0 to
give correct rotation centre in FreeWRL
m2off: preserve vertex colours
Version 0.14
20-06-07 Adrian Rossiter <adrian@antiprism.com>
New Programs
m2off: convert LiveGraphics3D 'm' format to OFF format
(m2off written by Roger Kaufman)
unitile2d: makes uniform tilings on a surface
Changes
off2vrml: increase ambient light
off2pov: new aspect ratio variable, redundant transparency
variables removed
off_color: option to map element colours to HSVA ranges
off_util: files combined before processing, new option -l for
merge distance, default value for -M, -M preserves
orientation
canonical: default maximum iterations for -n is no limit
w_shell: removed, replaced by the more general lat_grid
model programs: many models now oriented in same direction
build: Qhull source included, removes Qhull dependency,
use autotools build system
Fixes
off_color: use colormap files, proper colouring of non-closed
surfaces
off2pov: output compatible with MegaPOV
off2m: ensure external viewpoint, convert files with no faces
off_util: -M merges files with no faces
Version 0.13
13-04-07 Adrian Rossiter <adrian@antiprism.com>
New Programs
off2vrml: converts OFF files to VRML
off_report: reports on global measures (area, volume, etc),
maxima and counts
off_query: list element data for specified elements
Changes
off_color: transparency options, lighting colouring effect
antiview: use alpha value when displaying colours, element
numbering, orthogonal view, display in right-handed
coordinate system
off2pov: use alpha value when displaying colours, display
in right-handed coordinate system
all programs: support alpha values, revert to writing
colours to OFF files as decimals, write vertex colours
using a one vertex face, ignore data after vertex
coordinates, integer colours intended as decimal are
read as decimal
off_trans: relative scaling
pol_recip: orientable duals are oriented
off_util: -O flips orientation of oriented polyhedra,
-D digon filter replaced by -F, a more general filter,
-M merges coincident elements (-M by Roger Kaufman)
zono: option -a removed, duplicate vectors are not dropped
Fixes
antiview: -R rotation
Version 0.12
26-02-07 Adrian Rossiter <adrian@antiprism.com>
New Programs
off2m: convert to 'm' format for display in LiveGraphics3D
applet (off2m written by Roger Kaufman)
Changes
off_color: edge colouring using digons
off_util: digon filter, edges to faces, project onto sphere
antiview: edge elements from digons, vertex and face
colour options
off2pov: edge elements from digons and faces, vertex and
face colour options
all programs: colour options accept several colour formats,
write colours to OFF files as integers
Fixes
Read OFF files with colours which have an alpha value
Version 0.11
11-02-07 Adrian Rossiter <adrian@antiprism.com>
New Programs
repel: equilibrium positions of points repelling on a sphere
canonical: canonicalization of polyhedra
lat_grid: lattices and grids with integer coordinates
Changes
off_trans: new option -X, general transformations
off2pov: variables for transparency of elements
model programs: model code separated from model programs
Makefile: CYG=1 no longer sets option -mno-cygwin
Fixes
Read OFF files containing comments, correct whitespace
handling
Version 0.10
21-11-06 Adrian Rossiter <adrian@antiprism.com>
New Programs
antiview: command line model viewer
kcycle: kaleidocycle rings of polyhedra
Changes
off_color: default colours and schemes, new colouring options
unipoly: list by U numbers, rather than Kaleido numbers
pol_recip: -c C to use centroid as centre
various: minor changes to help text
Fixes
jitterbug: add edge counts to output
poly_weave: error handling
pol_recip: option r, specifying a radius with two points,
using a centre with a face or edge radius.
off_color: works in windows, error checking
all: portable processing of numeric input
Version 0.09
10-09-06 Adrian Rossiter <adrian@antiprism.com>
New Programs
Changes
Antiprism instead of Packinon in code and documentation
Fixes
Releases 0.01 - 0.08 made under the name of Packinon
http://sourceforge.net/projects/packinon
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
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