Summary of commands in MSWLogo

MSWLogo is an interpreted programming language, based on the Logo computer language platform, with a graphical user interface (GUI). It is free and open source programming software, with source code available in Borland C++.

MSWLogo supports many turtle graphics, 3D computer graphics and allows input from COM and LPT ports. It also supports a windowing interface, so input/output (I/O) is available through this GUI and keyboard and mouse events can trigger interrupts.

In this article, let's learn the commands included in MSWLogo, making programming with this software faster.

Commands included in MSWLogo

Command	Abbreviation	Syntax	Output	For example
FORWARD	fd	FORWARD	Move the turtle forward with the specified number of times	forward 100 or fd 100
BACK	bk	BACK	Move the turtle backwards with the specified number of times	back 100 or bk 100
RIGHT	rt	RIGHT	Rotate the turtle to the right by the specified number of degrees	right 228 or rt 228
LEFT	lt	LEFT	Rotate the turtle left by the specified number of degrees	left 228 or lt 228
HOME	home	Home	Go to the center of the screen but do not clear the screen	home
CLEAN	ct cs	Clean	Clear the screen of the trail but keep the turtle position	clean
CLEARSCREEN	CS	Clearscreen	Clear the screen of the trail and go to the center of the screen	cs
HIDETURTLE	HT	Hide turtle	Hide the turtle and support to see the drawing clearly on the screen	ht
SHOWTURTLE	ST	Show turtle	Show the turtle after it is hidden from the screen	st
PENUP	PU	(set) Pen up	Set the turtle to move without drawing	pu
PENDOWN	PD	(resets) Pen	Reset brush when prompted to move	pd
CLEARTEXT	CT	Clear text	Clear all text in command screen	ct
CIRCLE		Circle	Create a loop that repeats 360 [FD (desired length in pixels divided by 360) RT or LT 1]	circle
Pattern	pay	Pattern	Create a pattern	pattern

Commands to create some basic 2D drawings

Picture	Command
Square	Repeat 4 [fd 200 rt 90]
Rectangular	Fd 300 rt 90 fd 150 rt 90 Fd 300 rt 90 fd 150 rt 90
Circle	Repeat 360 [fd 3 rt 1]
Triangle	Repeat 3 [fd 300 rt 120]
The Pentagon	Repeat 5 [fd 200 rt 72]
Hexagon	Repeat 6 [fd 200 rt 60
Octagon	Repeat 8 [fd 150 rt 45]
hexagon shape	Repeat 9 [fd 150 rt 40]
Hexagon	Repeat 10 [fd 100 rt 36]