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| #!/usr/bin/perl
| #
| # Example of using a lsys fractal,
| # which in turm used Turtle Graphics
| #
| use Cwd;
| use lib cwd;
| require "lsys.pl";
|
| %rule = (
| 'A' => 'S[---LMA][++++B]',
| 'B' => 'S[++LBg][--Cg]',
| 'C' => 'S[-----LB]GS[+MC]',
| 'g' => '',
| 'L' => '[{S+S+S+S+S+S}]'
| );
|
| %stemchanges = (
| distance => 18.5,
| dtheta => 0.1,
| motionsub => sub{
| $im->Draw ( primitive=>'line', points=>join(' ',@_),
| stroke=>'dark green', strokewidth=>1 );
| }
| );
|
| %polychanges = (
| distance => 3,
| dtheta => 0.4,
| motionsub => sub{ push( @poly, @_[0..1] ); }
| );
|
| $changes = \%stemchanges;
| lsys_init(400);
| lsys_execute('A', 10, "tree.gif", %rule);
|
|
