A Short introduction to using Logo. This is the first in a twelve part series.
Can you use LOGO to create this star pattern made from squares.
Only basic LOGO knowledge needed.
Using LOGO, can you construct elegant procedures that will draw
this family of 'floor coverings'?
First Forward Into Logo
In FF7 you looked at the following procedures and were invited to alter them at your leisure:
TO POLY :N
REPEAT :N [FD 45 RT 360/:N]
TO POLY :N :M
REPEAT :N [FD :M RT 360/:N]
Consider REPEAT 5 [ FD 100 RT 144] .........what do you think this means? Try to imagine what is happening before entering the procedure into a machine. Imagine being the 'turtle' that creates the graphic....how many times does it turn? Through how many degrees has it turned when it has finished the procedure?
Consider the procedure below. What do you think is happening? Talk through with your friends what you think the procedure is all about. Only then enter it into a machine and experiment with it.
TO GAZE :M :N
REPEAT :N [ FD :M LT 720/:N]
Try GAZE 100 5;
GAZE 120 7;
GAZE 200 9;
GAZE 50 8 (Beware maybe not what you think!)
Okay then what about GAZE 150 12?
GAZE 250 16?