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Miscellaneous demonstration commands to illustrate some of the features
and show how the different programs work together.
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U75
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Med
Lrg
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Description :
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A uniform polyhedron, coloured using off_color. The faces are
coloured with a minimal proper colouring. The orange and purple
used for the faces are taken from a colour map created on the
command line. The edges are coloured white.
View this model with the command
off_color -f P -m map_orange:purple U75 -e white | antiview
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Geodesic Pack
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Med
Lrg
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Description :
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An 8 frequency geodesic division of a planar icosahedron, displayed
using balls for vertices.
antiview -v b (vertices as balls) displays the vertices using
the largest radius it can without them overlapping. The -x ef
excludes the edge and face elements from the display.
View this model with the command
geodesic -M p -f 8 ico | antiview -v b -x ef
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Woven Icosahedron
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Med
Lrg
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Description :
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An icosahedron is transformed into a weave by poly_weave. Each circuit
is a single OFF face. This model has coincident circuit faces, which are
merged by off_util. off_color colours the faces with a unique
colour, and then colours the edges according to the faces they lie on. This
gives each circuit of the weave a unique colour. After colouring the edges
the face element is not need and is excluded from display in antiview.
View this model with the command
poly_weave ico | off_util -M a | off_color -f U -e F | antiview -v 0.08 -x f
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Geodesic Sphere
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Med
Lrg
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Description :
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A geodesic sphere with the elements of each type given the same
colour. The faces and edges are coloured with a named colour
and the vertices are coloured a dark red by specifying the RGB
colour components. Run off_util -H color for help on colouring.
View this model with the command
off_color -v 0.8,0.0,0.0 -f white -e grey30 geo_6 | antiview -v 0.04 -e 0.02
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String Art Tetrahedra
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Med
Lrg
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Description :
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The string_art program makes models by attaching strings from
one line or circle element to another. The strings are equally spaced
along the element.
This model is based on a single unit with strings between two line
elements, which are aligned to later be repeated symmetrically.
off_color colours the strings cream and the vertices red.
Finally, poly_kscope repeats the unit to produce a model with
octahedral symmetry.
View this model with the command
string_art -l 20 -T 0,0,0.707 -R 0,0,45 -l 20 -T 0,0,-0.707 -R 0,0,-45 | off_color -e 1.0,1.0,0.7 -v 1.0,0.2,0.0 | poly_kscope -s O | antiview -v 0.03 -B black
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Zonohedron
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Med
Lrg
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Description :
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A zonohedron based on a truncated icosahedron (using vectors from
the centre to the vertices.) The faces and vertices are coloured
by off_color.
View this model with the command
zono -m v tr_ico | off_color -f 0.4,0.4,0.9 -v 0,1.0,1.0 | antiview -v 0.5
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Zonohedron Dual
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Med
Lrg
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Description :
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The previous zonohedron (made from the vertex offsets of a truncated
icosahedron) is dualised, and coloured. The map shows how to define
a colour map that includes a colour given by RGB components. Notice how
the zones of the zonohedron have become a planar circuits
in the dual.
View this model with the command
zono -m v tr_ico |pol_recip| off_color -f P -m map_0/0.5/0.5:darkred | antiview -v 0.5 -E white
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Tiled Torus
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Med
Lrg
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Description :
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unitile2d maps polygon tilings onto surfaces. In this case
a 4,6,12 tiling is mapped onto a torus. The polygons are coloured
according to their number of sides, and the colours are looked up
in the spread colour map. The map is shifted by 8, arrived at
by experimenting until I found a colour combination I liked. The
antiview -t no_triangulation option improves the display
of the non-planar polygons over the triangulated default.
View this model with the command
unitile2d -s t -l 90 -w 30 11 | off_color -f N -v 1.0,0.0,0.0 -m spread+8 | antiview -v 0.03 -e 0.025 -E grey80 -t no_tri
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