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 to x y (degrees) teleport turtle to location (direction) |
| drw x y | draw to location x y |
| dir a | direction angle in degrees 0 is east, 90 is north |
| bezier ax ay ahx ahy bhx bhy bx by segments | cubic bezier with 2 handles start handle1 handle2 end segments |
| molding type ax ay bx by segments tension | point-to-point tension curves type* start end segments tension *type: cove, ovolo, cymarecta, cymareversa, dome |
| rmov dx dy | relative move offset-x offset-y skips over the offset, restarts the UV map *shape must be OPEN |
| rdrw dx dy | relative draw offset-x offset-y |
| newp | new point creates a vertex in-situ and restarts the UV map |
| movfwd c (d) | move forward (offset) *shape must be OPEN |
| fwd c (d) | forward (offset) |
| back c (d) | back (offset) |
| right c (d) | right (offset) |
| left c (d) | left (offset) |
| turnl a | rotate counter-clockwise angle |
| turnr a | rotate clockwise angle |
| arcr a r s | arc right angle radius segments |
| arcl a r s | arc left angle radius segments |
| closed | adds a segment connecting the last point to the first, and removes overlapped vertices *required for ‘manifold topology’ *changes options under INPUT/OUTPUT *also a bool switch under Output/Input |
| set | set the value on a parameter set parameter value |
| let | create a temporary variable let var value |
| loop repeat (count) (step) | open a loop and repeat until done (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 | function returns a value sqrt(pow(width,2)+pow(height,2)) Archimatix mathf functions |
| parameter name | uses the value of the node’s parameter |
| DetailLevel | read-only parameter from graph setting: 0-1 *reduces segments on all nodes: 0.5 is 50% *generate LOD models by reducing vertices if DetailLevel LT .67 … |
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 |