Primitives available in 2D mode and 3D mode

The following primitives are available in 2D plane or in 3D world. The only difference is the arguments received by the primitives. For example, the primitive setpos or setposition is still waiting for a list as an argument but now, the list must contain three numbers $(x;y;z)$ which represent the three point coordinates. Here are all those primitives:

circle	arc	origine	towards
distance	setpos, setposition	setx	sety
setheading	label	labellength	point
pos, position	heading

Primitives only available in 3D mode

• setxyz : this primitive moves the turtle to the chosen point. This primitive is waiting for three arguments representing the point's coordinates. setxyz is very similar to setpos but the coordinates are not written into a list.
  Example, setxyz -100 200 50: move the turtle to the point $x=-100;y=200;z=50$
  
• setz : this primitive moves the turtle to the point with the valid value $z$. setz is waiting for one number as an argument. This primitive is comparable to setx or sety.
  
• setorientation: set the turtle's orientation. This primitive waits for a list which contains 3 numbers, the roll, the pitch and the heading.
  Example, setorientation [100 0 58]: the turtle has roll: 100 degrees, pitch: 0 degree and heading: 58 degrees.
  
• orientation: returns the turtle's orientation in a list which contains: [ roll pitch heading ]. Note the number order, if for example, the orientation value is [100 20 90], this means that if you want the same orientation starting from the origin position (after a clearscreen instruction), you'll have to write the following sequence:
  rightroll 100 up 20 right 90
  If you inverse the instruction's order, you don't obtain the valid orientation!
  
• setroll: The turtle turns around its longitudinal axis to the chosen roll angle.
  
• roll: Returns the current roll value.
  
• setpitch: The turtle turns around its transversal axis to the chosen pitch angle.
  
• pitch: Returns the current pitch value.