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File:Blue Unknot.png

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Original file (1,800 × 1,800 pixels, file size: 417 KB, MIME type: image/png)

 
This image was created with POV-Ray.

Summary

Description
English: The unknot.
Date
Source Own work
Author Jim.belk

Licensing

Public domain 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

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 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 = 0.8;
#declare r_tube = 0.12;

torus
  {
  R, r_tube              // major and minor radius
  rotate -90*x      // so we can see it from the top
  translate <0,0,0.1>
  pigment { color rgb <0,0.25,1> }
  finish
    {
    ambient 0.15
    diffuse 0.85
    brilliance 2
    phong 0.25
    phong_size 7.5
    }
  }

plane
  {
  <0,0,-1>, -0.33
  pigment { color White }
  finish
    {
    ambient 0.35
    diffuse 0.65
    }
  }

Captions

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depicts

28 March 2010

image/png

a8835803dee8eb74c712c7d07b2e788ba91679f5

427,180 byte

1,800 pixel

1,800 pixel

File history

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Date/TimeThumbnailDimensionsUserComment
current21:51, 28 March 2010Thumbnail for version as of 21:51, 28 March 20101,800 × 1,800 (417 KB)Jim.belk{{Information |Description={{en|1=The unknot.}} |Source={{own}} |Author=Jim.belk |Date=2010-03-28 |Permission= |other_versions= }} Category:Plain circles Category:Images including source code in their description

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