The following commands can be parsed with Turtle Script within the logic panel of shape nodes.
Values inside () are optional.
| mov x y (a) | move, x y (set angle) |
| dir a | rotate, degrees |
| drw x y | draw, x y |
| rmove dx dy | relative move, offset-x offset-y |
| turnl a | rotate counter-clockwise, angle |
| turnr a | rotate clockwise, angle |
| fwd c (d) | forward (offset) |
| back c (d) | back (offset) |
| right c (d) | right (offset) |
| left c (d) | left (offset) |
| arcr a r s | arc right, angle radius segments |
| arcl a r s | arc left, angle radius segments |
| bezier ax ay ahx ahy bhx bhy bx by segments | Cubic bezier with 4 control points |
| molding type ax ay bx by segments tension | type: cove, ovolo, cymarecta, cymareversa, *dome |
| closed | adds a segment to connect the last point to the first (also a bool switch under Output/Input Shape) |
| set | set the value of a parameter |
| let | create a temporary variable |
| loop repeat (name) (step) | open a loop and repeat until done (temp counter name) (steps per count) |
| endloop | terminate loop |
| if conditional | open a conditional directive when true |
| if bool | run conditional when bool is true |
| if !bool | run conditional when bool is false |
| endif | terminate conditional directive |
| GT | greater than conditional |
| LT | less than conditional |
| GE | greater or equal conditional |
| LE | lesser or equal conditional |
| EQ | equal conditional |
| NE | not equal conditional |
| // | comment line |
| + – * / (…) | add subtract (negative) multiply divide order of operations |
| mathf functions | Complete List of mathf functions |
| parameter name | the value of a node’s parameter |
| DetailLevel | read-only parameter from graph, 0-1 reduces all segs |
Example scripts:
The best way to learn AX Turtle Script is to open the Logic panel on any 2D shape node to see how it was made.
Parameter names on the node become dynamic variables in the script.
 | mov width/2 0 90 drw 0 height/2 drw –width/2 0 drw 0 –height/2 Output Shape: closed |
 | if shift_origin molding cove –width height 0 0 segs tension endif if !shift_origin molding cove 0 height width 0 segs tension endif Output Shape: open |
 | if inputHypotenuse if solveWidth set width Sqrt(hypotenuse*hypotenuse–height*height) endif set height Sqrt(hypotenuse*hypotenuse–width*width) endif set hypotenuse Sqrt(width*width+height*height) set theta Atan2(height,width) mov 0 0 90 right width fwd height Output Shape: closed |
 | if bX GE aX let mdX abs(bX–aX)/(segs-1) endif if bX LT aX let mdX -abs(bX–aX)/(segs-1) endif if bY GE aY let mdY abs(bY–aY)/(segs-1) endif if bY LT aY let mdY -abs(bY–aY)/(segs-1) endif if cX GE bX let ndX abs(cX–bX)/(segs-1) endif if cX LT bX let ndX -abs(cX–bX)/(segs-1) endif if cY GE bY let ndY abs(cY–bY)/(segs-1) endif if cY LT bY let ndY -abs(cY–bY)/(segs-1) endif mov aX aY loop segs i mov aX+mdX*i aY+mdY*i drw bX+ndX*i bY+ndY*i endloop Output Shape: open |