Inversed Sierpinski

by NightElfik
Short link: http://malsys.cz/g/y5ZKcvO4
Inversed Sierpinski

Description

http://en.wikipedia.org/wiki/Sierpinski_triangle

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Source code

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lsystem InversedSierpinski {
 
set symbols axiom = < . F - . F . > - F;
set iterations = 5;
 
interpret F f as MoveForward(2 ^ -iterations * 300);
interpret + as TurnLeft(120);
interpret - as TurnLeft(-120);
interpret < as StartPolygon(0, 0);
interpret . as RecordPolygonVertex;
interpret > as EndPolygon;
 
rewrite F to f + < . F - . F . > - F + f;
rewrite f to f f;
}
 
process all with SvgRenderer;