Islands and lakes colored

by NightElfik
Short link: http://malsys.cz/g/p9RlVlsE
Islands and lakes colored

Description

Colored variant of Islands and lakes from The Algorithmic Beauty of Plants by P. Prusinkiewicz and A. Lindenmayer, p 9, fig 1.8 http://malsys.cz/permalink/Wc9hZv46

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ABoP

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Source code

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lsystem IslandsAndLakesColored {
 
let darkColor = #000000;
let lightColor = #FFFFFF;
 
set symbols axiom = <(darkColor,0) . f. - f. - f. - f. >;
set iterations = 2;
set reversePolygonOrder = true;
 
interpret f g as MoveForward(8);
interpret + as TurnLeft(90);
interpret - as TurnLeft(-90);
interpret < as StartPolygon(0, 0);
interpret . as RecordPolygonVertex;
interpret > as EndPolygon;
 
rewrite f to f + g <(darkColor, 0) . f. - f. f. - f. - f. f. > + g + f f
- g <(lightColor, 0) . f. + f. f. + f. + f. f. > - g - f f f;
rewrite g to g g g g g g;
}
 
process all with SvgRenderer;