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File:Smiley mini Mandelbrot set with external rays.png

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Original file ‎(2,000 × 1,000 pixels, file size: 2.46 MB, MIME type: image/png)

Summary

Description
English: Part of Mandelbrot set : Smily Kaleidoscope. This is zoom into this great image by Duncan Champney [1]
Date
Source Made with c program[2] by Claude Heiland-Allen[3]
Author Adam majewski

Summary

size 2000 1000
view 54 -1.74920463345912691e+00 -2.8684660237361114e-04 2.158333333333333e-12
ray_in 2000 .(10010010010010010010010010010010010010010010001101101101101101101101101101101101101101101101101101101101101101101101101101101101101101)
text 63 -1.7492046334590113301e+00 -2.8684660234660531403e-04 134
text 62 -1.7492046334594190961e+00 -2.8684660260955536656e-04 268
ray_in 2000 .(10010010010010010010010010010010010010010001110010010010010010010010010010010010010010010010010010010010010010010010010010010010010010)

Licensing

I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

Bash src code

This is bash file for book program[4] by Claude Heiland-Allen[5] 

#!/bin/bash
# 
re="-1.74920463345912691e+00 "
im="-2.8684660237361114e-04"
r="2.158333333333333e-12"
view="$re $im $r"
# escape radius
er="512"
# filename stem
stem="smiley"
# image size in pixels
w="2000"
h="1000"
# maximum iterations
n="65536"
# interior rendering
i="1"
# ray depth
d="8192"
# render background image
./render $view "$er" "$stem" "$w" "$h" "$n" "$i" && ./colour "$stem" > "$stem.ppm"
# compute rays in parallel
./ray_in ".(10010010010010010010010010010010010010010010001101101101101101101101101101101101101101101101101101101101101101101101101101101101101101)" $d > "$stem-ray1.txt" &
./ray_in ".(10010010010010010010010010010010010010010001110010010010010010010010010010010010010010010010010010010010010010010010010010010010010010)" $d > "$stem-ray2.txt" &
wait
# annotate background with rays and labels
./annotate "$stem.ppm" "$stem.png" <<EOF
rgba 1 1 1 1
line cat "$stem-ray1.txt" | ./rescale 100 53 $view 0
line cat "$stem-ray2.txt" | ./rescale 100 53 $view 0
text `echo '-1.7492046334590113301e+00 -2.8684660234660531403e-04 ' | ./rescale 100 53 $view 0` 134
text `echo '-1.7492046334594190961e+00 -2.8684660260955536656e-04'  | ./rescale 100 53 $view 0` 268
EOF

Text output

time ./examples/smily-kaleidoscope.sh
./render using MPFR<55>
rgba 1.000000 1.000000 1.000000 1.000000
line cat "smiley-ray1.txt" | ./rescale 100 53 -1.74920463345912691e+00  -2.8684660237361114e-04 2.158333333333333e-12 0
line cat "smiley-ray2.txt" | ./rescale 100 53 -1.74920463345912691e+00  -2.8684660237361114e-04 2.158333333333333e-12 0
text 0.053551 0.012512 134
text -0.135376 -0.109318 268

real	11m3.402s
user	50m8.773s
sys	0m2.087s

References

  1. ↑ Smily Kaleidoscope : great image by Duncan Champney
  2. ↑ c program by Claude Heiland-Allen
  3. ↑ Claude Heiland-Allen - blog
  4. ↑ book program
  5. ↑ Claude Heiland-Allen

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3 December 2014

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Date/TimeThumbnailDimensionsUserComment
current20:57, 3 December 2014Thumbnail for version as of 20:57, 3 December 20142,000 × 1,000 (2.46 MB)Soul windsurferUser created page with UploadWizard

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