Display a Lissajous curve in text

ruby -rcurses -e"include Curses;i=0;loop{setpos 12*(Math.sin(i)+1),40*(Math.cos(i*0.2)+1);addstr'.';i+=0.01;refresh}"

Use Ruby's standard Curses module to display a Lissajous curve in the console. Replace the "0.2" with different numbers for different curves.

Sample Output

....         .......                ........                ......           ..
.  .        ..     ..              ..      ..              ..     .         . ..
.  ..       .       ..            ..        ..            ..       .        .  .
.   .      .         ..          .           ..          ..        ..      .   .
.   .      .          .         ..             .         .          ..     .   .
.    .    .            .        .              ..       .            .    .    .
.    .   ..             .      .                ..     ..            ..   .    .
.    ..  .              ..    .                  .     .              .   .    .
.     . ..               .   ..                  ..   .               .. .     .
.     . .                .. ..                    .  .                 . .     .
.     . .                 . .                      . .                 ..      .
.      ..                  ..                      ..                   .      .
.      .                   ..                       .                   .      .
.      ..                 . .                      . .                 ...     .
.     . .                ..  .                    .   .                . .     .
.     .  .               .   ..                  ..   .               .. .     .
.    .   .              .     .                  .     .              .  ..    .
.    .   ..            .       .                .      .             .    .    .
.   ..    .            .       .               .        .            .    .    .
.   .     ..          ..        ..            ..         .          .      .   .
.   .      .         .           ..           .          ..         .      .   .
.  .        .       ..            ..        ..            ..       .       ..  .
.. .         .     ..              ..      ..              ..     ..        . ..
 ..           ......                 .......                .......         ...

By: jaymcgavren

2010-03-09 06:10:47

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What Others Think

You've got curses, why not allow interactive input to change the curve?

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What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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