Thingiverse
Space-Time Turtle Spiral Generator
di iamarf
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Space-time representation of Turtle Geometry square spirals. Derived from the [Turtle Spiral Generator](https://www.thingiverse.com/thing:1207095) OpenSCAD code of [JustinSDK](https://www.thingiverse.com/JustinSDK). Z-axis is representing time, assuming a constant Turtle speed.
Spirals are reproducing a LOGO code of the following kind ([LibreLogo code](http://librelogo.org)):
TO SPIRAL IL EL DS A
IF IL < EL [ STOP ]
FORWARD IL
LEFT A
SPIRAL IL–DS EL DS A
END
SPIRAL 50 5 0.5 89
where
IL: initial lenght
EL: ending leght
DS: decreasing step
A: turning angle
Spirals are reproducing a LOGO code of the following kind ([LibreLogo code](http://librelogo.org)):
TO SPIRAL IL EL DS A
IF IL < EL [ STOP ]
FORWARD IL
LEFT A
SPIRAL IL–DS EL DS A
END
SPIRAL 50 5 0.5 89
where
IL: initial lenght
EL: ending leght
DS: decreasing step
A: turning angle
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