Mandelbrot set: Difference between revisions
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Original source: [http://seed7.sourceforge.net/algorith/graphic.htm#mandelbr] |
Original source: [http://seed7.sourceforge.net/algorith/graphic.htm#mandelbr] |
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=={{header|SenseTalk}}== |
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<lang sensetalk>put 0 into oReal # Real origin |
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put 0 into oImag # Imaginary origin |
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put 0.5 into mag # Magnification |
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put oReal - .8 / mag into leftReal |
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put oImag + .5 / mag into topImag |
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put 1 / 200 / mag into inc |
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put [ |
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(0,255,255), # aqua |
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(0,0,255), # blue |
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(255,0,255), # fuchsia |
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(128,128,128), # gray |
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(0,128,0), # green |
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(0,255,0), # lime |
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(128,0,0), # maroon |
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(0,0,128), # navy |
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(128,128,0), # olive |
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(128,0,128), # purple |
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(255,0,0), # red |
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(192,192,192), # silver |
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(0,128,128), # teal |
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(255,255,255), # white |
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(255,255,0) # yellow |
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] into colors |
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put "mandelbrot.ppm" into myFile |
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open file myFile for writing |
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write "P3" & return to file myFile # PPM file magic number |
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write "320 200" & return to file myFile # Width and height |
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write "255" & return to file myFile # Max value in color channels |
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put topImag into cImag |
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repeat with each item in 1 .. 200 |
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put leftReal into cReal |
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repeat with each item in 1 .. 320 |
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put 0 into zReal |
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put 0 into zImag |
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put 0 into count |
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repeat at least once until size > 2 or count = 100 |
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put zReal squared + zImag squared * -1 into newZreal |
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put zReal * zImag + zReal * zImag into newZimag |
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put newZreal + cReal into zReal |
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put newZimag + cImag into zImag |
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put sqrt(zReal squared + zImag squared) into size |
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add 1 to count |
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end repeat |
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if size > 2 then # Outside the set - colorize |
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put item count mod 15 + 1 of colors into color |
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write color joined by " " to file myFile |
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write return to file myFile |
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else # Inside the set - black |
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write "0 0 0" & return to file myFile |
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end if |
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add inc to cReal |
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end repeat |
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subtract inc from cImag |
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end repeat |
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close file myFile |
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</lang> |
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=={{header|SequenceL}}== |
=={{header|SequenceL}}== |
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