Dekking's church

by NightElfik
Short link: http://malsys.cz/g/idVbT63G
Dekking

Description

Advances in Math, vol. 44, 1982, pp. 78-104 Works only for odd iterations.

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Source code

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lsystem DekkingsChurch {
 
set symbols axiom = w x y z;
set iterations = 7;
 
interpret F as DrawForward(8);
interpret + as TurnLeft(90);
interpret - as TurnLeft(-90);
 
rewrite F to nothing;
rewrite w to F w + F - z F w - F + x;
rewrite z to + + F - - y - F + x + + F - - y - F + x;
rewrite y to + + F - - y + F - z;
rewrite x to F w + F - z;
}
 
process all with SvgRenderer;