File:Lissajous 8 21 Knot Animated.gif
Lissajous_8_21_Knot_Animated.gif (480 × 480 pixels, file size: 2.09 MB, MIME type: image/gif, looped, 36 frames, 3.6 s)
Captions
Summary
[edit]DescriptionLissajous 8 21 Knot Animated.gif |
English: A Lissajous 821 knot. |
Date | // 2018-12-28 |
Source | Own work |
Author |
Jim.belk Animation: MichaelFrey (talk) |
Licensing
[edit]Public domainPublic domainfalsefalse |
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]This image was created using POV-Ray for Windows, version 3.6. The image was rendered to an 1800 x 1800 square, using 0.3 anti-aliasing, and then cropped and compressed using pngcrush.
#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 = 0.05;
#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;
< 0.75*cos(3*theta + 0.1), 0.75*cos(4*theta + 0.7) + 0.05, 0.3*cos(7*theta)-0.04>, 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
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 14:23, 28 December 2018 | 480 × 480 (2.09 MB) | MichaelFrey (talk | contribs) | {{Created with Persistence of Vision}} == {{int:filedesc}} == {{Information |Description={{en|1=A Lissajous 8<sub>21</sub> knot.}} |Source={{own}} |Author=Jim.belk |Date=2010-03-26 |Permission= |other_versions= }} == {{int:license-header}} == {{PD-self}} == Source == This image was created using POV-Ray for Windows, version 3.6. The image was rendered to an 1800 x 1800 square, using 0.3 anti-aliasing, and then cropped and compressed using pngcrush. <pre> #include "color... |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
GIF file comment |
|
---|