File:Lissajous Stevedore Knot Animated.gif
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Lissajous_Stevedore_Knot_Animated.gif (480 × 480 pixels, file size: 1.88 MB, MIME type: image/gif, looped, 36 frames, 3.6 s)
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Summary[edit]
| Description |
English: A Lissajous stevedore knot. |
| Date | // 2018-12-28 |
| Source | Own work |
| Author |
Jim.belk Animation: MichaelFrey (talk) |
Licensing[edit]
|
I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
Source[edit]
#include "colors.inc"
background { color White }
global_settings { assumed_gamma 1.0}
camera
{
location <0, 0, -25>
right <1,0,0> up <0,1,0>
look_at <0, 0, 0>
angle 5
}
light_source
{
<0, 20, -50>
color White
area_light <5, 0, 0>, <0, 5, 0>, 10, 10 /* very slow, decrease 10 to 2 for experiments */
adaptive 3
}
#declare r_tube = 0.07;
#declare num_steps = 36;
#declare step_size = 1/num_steps;
sphere_sweep
{
cubic_spline num_steps+3,
#declare N = -1;
#while(N <= num_steps + 1)
#declare theta = 2 * pi * N * step_size;
< 0.8*cos(3*theta + 1.5), 0.8*cos(2*theta + 0.2) + 0.075, 0.3*cos(5*theta)>, r_tube
#declare N = N + 1;
#end
pigment { color rgb <0,0.25,1> }
finish
{
ambient 0.15
diffuse 0.85
brilliance 2
phong 0.25
phong_size 5
}
rotate <0,360*clock,0>
}
plane
{
<0,0,-1>, -2.4
pigment { color White }
finish
{
ambient 0.35
diffuse 0.65
}
}
Assembly.inc[edit]
;http://www.f-lohmueller.de/pov_tut/animate/anim001d.htm Antialias=Off Antialias_Threshold=0.1 Antialias_Depth=2 Input_File_Name="knot.pov" Initial_Frame=1 Final_Frame=36 Initial_Clock=0 Final_Clock=1 Cyclic_Animation=on Pause_when_Done=off
build.sh[edit]
povray Assembly.inc +H480 +W480 +UA convert -dispose previous -delay 10 -loop 0 *.png myimage.gif firefox myimage.gif
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:40, 27 December 2018 | | 480 × 480 (1.88 MB) | MichaelFrey (talk | contribs) | {{Created with Persistence of Vision}} == {{int:filedesc}} == {{Information |Description={{en|1=A Lissajous stevedore knot.}} |Source={{own}} |Author=Jim.belk |Date=2010-03-26 |Permission= |other_versions= }} == {{int:license-header}} == {{PD-self}} == Source == <pre> #include "colors.inc" background { color White } global_settings { assumed_gamma 1.0} camera { location <0, 0, -25> right <1,0,0> up <0,1,0> look_at <0, 0, 0> angle 5 } light_source {... |
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