17 lines
396 B
Text
17 lines
396 B
Text
# Create an empty image of 120 x 90 pixels
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(setq *Ppm (make (do 90 (link (need 120)))))
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# Fill an image with a given color
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(de ppmFill (Ppm R G B)
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(for Y Ppm
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(map
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'((X) (set X (list R G B)))
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Y ) ) )
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# Set pixel with a color
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(de ppmSetPixel (Ppm X Y R G B)
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(set (nth Ppm Y X) (list R G B)) )
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# Get the color of a pixel
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(de ppmGetPixel (Ppm X Y)
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(get Ppm Y X) )
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