Getting Started
| Download logo.zip from: http://www.nvcc.edu/home/bsimon/misc/logo.zip |
| Unzip the file |
| Click on logo.exe inside the logo directory |
| Check out this intro site |
Basics
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| See: Turtle Basics by Mike Koss |
Standard Words
| Word | Meaning |
| fd 10 | forward 10 |
| bk 10 | backward 10 |
| rt 90 | right turn 90 degrees |
| lt 45 | left turn 45 degrees |
| pu | lift pen up - stop drawing |
| pd | pen down - start drawing |
| repeat 4 [ fd 10 rt 90 ] | repeat some commands |
| pick [ -90 -45 45 90 ] | choose one of the numbers randomly |
| repcount | equal to current repeat number |
| ht | hide turtle |
| st | show turtle |
| cs | clear screen |
| wait 60 | pause for 1 second |
| home | jump the turtle back to the middle of the screen |
| label [blah] | write the word blah on the screen |
| circle 20 | draw a circle with radius 20 |
| edall | edit the current set of words |
Create Your Own Words
Basic examples:
to square
fd 100 rt 90 fd 100 rt 90 fd 100 rt 90 fd 100
end
to triangle
fd 100 rt 120 fd 100 rt 90 fd 100 rt 90 fd 100
end
With arguments:
to oct :size
repeat 8 [ fd :size rt 45]
end