the turtle x points Example: forward 50 Explained in lesson: Logo's turtle back X , bk X The turtle backs x points Example: back 50 Explained in lesson: Logo's turtle left X , lt X Rotate the turtle left x degrees Example: left 90 Explained in lesson: Logo's turtle right X , rt X Rotate the turtle right x degrees Example: right 90 Explained in lesson: Logo's turtle home Moves the turtle to center, pointing upwards Example: home Explained in lesson: Turtle world setx NUM_x Move turtle to the specified X location Example: setx 100 Explained in lesson: Turtle world sety NUM_y Move turtle to the specified Y location Example: sety 200 Explained in lesson: Turtle world setxy NUM_X NUM_Y , set pos [ NUM_X NUM_Y ] Move turtle to the specified location Example: setxy 100 100 Explained in lesson: Turtle world setheading , seth Rotate the turtle to the specified heading Example: sh 145 Explained in lesson: Turtle world arc ANGLE RADIUS Will create an arc distance RADIUS covering ANGLE angle Example: ARC 360 5 Explained in lesson: Turtle world ellipse WIDTH HEIGHT Will create an ellipse with Width and height Example: ellipse 80 90 Turtle Motion Queries pos Outputs the current turtle position as [ x y ], x or y respectively Example: pos Explained in lesson: The turtle answer xcor Outputs the current turtle position as [ x y ], x or y respectively Example: xcor Explained in lesson: The turtle answer ycor Outputs the current turtle position as [ x y ], x or y respectively Example: ycor Explained in lesson: The turtle answer heading Outputs the current turtle heading Example: heading Explained in lesson: The turtle answer towards Outputs the heading towards the specified [ x y ] coordinates Example: towards Explained in lesson: The turtle answer Turtle and Window Control showturtle , st Show the turtle Example: ht wait st Explained in lesson: Controlling the Turtle and Pen hideturtle , ht Hide the turtle Example: hideturtle Explained in lesson: Controlling the Turtle and Pen clean , cs Will clear the screen Example: fd 60 clean Explained in lesson: Logo's turtle clearscreen , cs Will clear the screen and return the turtle home Example: cs Explained in lesson: Logo's turtle fill Does a paint bucket flood fill at the turtle's position Example: cs repeat 4 [ fd 50 rt 90 ] pu setxy 50 50 pd fill Explained in lesson: Background filled fillcolor [ statements ... ] Execute statements without drawing but keeping track of turtle movements. When complete, fill the region traced by the turtle with fillcolor and outline the region with the current pen style Example: filled "blue [repeat 4 [fd 100 rt 90]] Explained in lesson: Background label expr Draw a word (same logic as print) on the graphics display at the turtle location Example: label "logo ht Explained in lesson: Background setlabelheight expr Set the height for text drawn by label, in pixels Example: setlabelheight 100 label "Logo ht Explained in lesson: Background wrap If the turtle moves off the edge of the screen it will continue on the other side Example: cs wrap fd 800 Explained in lesson: The turtle borders window The turtle can move past the edges of the screen, unbounded. Example: cs window fd 600 rt 90 fd 100 rt 90 fd 70 Explained in lesson: The turtle borders fence If the turtle attempts to move past the edge of the screen it will stop. Example: cs fence fd 600 rt 90 fd 100 rt 90 fd 70 Explained in lesson: The turtle borders Turtle and Window Queries shownp , shown? Outputs 1 if the turtle is shown, 0 if the turtle is hidden Example: show shown? Explained in lesson: Interactive labelsize Outputs the height of text drawn by label, in pixels Example: show labelsize Explained in lesson: Interactive Pen and Background Control penup , pu Turtle stops leaving a trail Example: penup Explained in lesson: Controlling the Turtle and Pen pendown , pd The turtle will leave a trail Example: pendown Explained in lesson: Controlling the Turtle and Pen setcolor X , setpencolor X Will set the turtle color accroding to the following table 0: black 1: blue 2: lime 3: cyan 4: red 5: magenta 6: yellow 7: white 8: brown 9: tan 10: green 11: aquamarine 12: salmon 13: purple 14: orange 15: gray Example: setcolor 1 Explained in lesson: Colors and printing setcolor [r,g,b] , setpencolor [r,g,b] Will set the turtle color accroding to the amount of red , green and blue Example: setcolor [50 100 50]