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Justin Lin
2020-05-27 15:54:25 +08:00
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docs/lib2x-lsystem3.md
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`lsystem3` is a 3D implementation of [L-system](https://en.wikipedia.org/wiki/L-system). It's based on the algorithm of turtle grahpics. Instructions for generation of rules are as follows: `lsystem3` is a 3D implementation of [L-system](https://en.wikipedia.org/wiki/L-system). It's based on the algorithm of turtle grahpics. Instructions for generation of rules are as follows:
F Move forward and draw line F Move forward and draw line
f Move forward without drawing a line f Move forward without drawing a line
+ Turn left + Turn left
- Turn right - Turn right
| Reverse direction (ie: turn by 180 degrees) | Reverse direction (ie: turn by 180 degrees)
& Pitch down & Pitch down
^ Pitch up ^ Pitch up
\ Roll left \ Roll left
/ Roll right / Roll right
[ Push current turtle state onto stack [ Push current turtle state onto stack
] Pop current turtle state from the stack ] Pop current turtle state from the stack
**Since:** 2.4 **Since:** 2.4