Chapter 2 - LOGO

Movement Commands

These commands move the logo.

1) Forward :- This command moves the logo in the direction it is facing.

FD <length>

length will be in pixels

Example

FD 100

FD 50

2) Backward :- This command moves the logo in the backward direction logo is facing.

BK <length>

Example

BK 100

BK 50

Turn Commands

1) Right Turn :- turns the logo in right direction with the angle provided.

RT <angle>

Example

RT 90

2) Left Turn :- turns the logo in left direction with the angle provided.

LT <angle>

Example

LT 90

Appearance Commands

1) Setpensize :- sets the size of the line logo draws

SETPENSIZE <width>

Example

SETPENSIZE 5

2) PENUP :- after this command logo wont draw anything in the canvas. It will still move but wont draw any line.

3) PENDOWN :- after this command logo will again be able to draw line in its path.

4) HT :-Hide Turtle, This command hides the Turtle/Logo

5) ST :- Show Turtle, This command shows the Turtle/Logo again.

Repeat command

It helps to repeat set of repetitive command by giving number of repetition of loops.

REPEAT <Loop_Number> [ <Commad> ]

Example

REPEAT 4 [ FD 100 RT 90 ] will draw a sqaure of side 100.