3 # Written by jreed@itis.com, adapted by John Cristy.
11 my ($width, $height) = $flower->Get('width', 'height');
12 my ($x, $y) = $turtle->state();
15 $geometry = '+' . int($x-$width/2) . '+' . int($y-$height/2);
16 $im->Composite(image=>$flower, compose=>'over', geometry=>$geometry);
25 'S' => sub{ # Step forward
26 $turtle->forward($changes->{"distance"},
27 $changes->{"motionsub"});
29 '-' => sub{ $turtle->turn(-$changes->{"dtheta"}); }, # counter-clockwise
30 '+' => sub{ $turtle->turn($changes->{"dtheta"}); }, # Turn clockwise
31 'M' => sub{ $turtle->mirror(); }, # Mirror
32 '[' => sub{ push(@statestack, [$turtle->state()]); }, # Begin branch
33 ']' => sub{ $turtle->setstate(@{pop(@statestack)}); }, # End branch
34 '{' => sub{ @poly = (); $changes=\%polychanges; }, # Begin polygon
35 '}' => sub{ # End polygon
36 $im->Draw (primitive=>'Polygon', points=>join(' ',@poly),
38 $changes = \%stemchanges;
40 'f' => sub{ flower($pink_flower); }, # Flower
41 'g' => sub{ flower($red_flower); }, # Flower
42 'h' => sub{ flower($yellow_flower); } # Flower
45 # Create the main image
46 $im = new Image::Magick;
47 $im->Set(size=>$imagesize . 'x' . $imagesize);
48 $im->Read('xc:white');
50 # Create the flower images
51 $pink_flower = new Image::Magick;
52 $pink_flower->Read('pink_flower.gif');
54 $red_flower = new Image::Magick;
55 $red_flower->Read('red_flower.gif');
57 $yellow_flower = new Image::Magick;
58 $yellow_flower->Read('yellow_flower.gif');
60 # Turtle: the midpoint of the bottom edge of the image, pointing up.
61 $turtle=new Turtle($imagesize/2, $imagesize, 0, 1);
66 my ($string, $repetitions, $filename, %rule) = @_;
70 # Apply the %rule to $string, $repetitions times.
73 $string =~ s/./defined ($rule{$&}) ? $rule{$&} : $&/eg;
75 foreach $command (split(//, $string))
77 if ($translate{$command}) { &{$translate{$command}}(); }
79 $im->Write($filename);