Beefy Boxes and Bandwidth Generously Provided by pair Networks
Keep It Simple, Stupid
 
PerlMonks  

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??
I've had lots of fun making this one, and its pretty cool. It all started three days ago when I took out a book from the library:
M.Field and M.Golubitsky, Symmetry in Chaos, 1992: Oxford Press.
I suggest that you read it, it explains how to use chaos/fractals to create symmetric images ( very beautiful ). After reading the explanation about fractals I decided to finally wrestle with Tk and make a fractal.

#!/usr/bin/perl ## Sierpinski's Triangle ## use Tk; $width = 800; $height = 500; my $main = MainWindow->new(); my $canvas = $main->Canvas( -width=>$width, -height=>$height, -backgro +und=>"black"); $canvas->pack( -expand=>1,-fill=>'both' ); # the coderefs take ( x, y ) @iterative_set = ( sub{ my @pt = (400,50); return( ($pt[0] + $_[0] )/2, ( $pt[1] + $_[1] )/2 ) }, sub{ my @pt = (50,400); return( ($pt[0] + $_[0] )/2, ( $pt[1] + $_[1] )/2 ) }, sub{ my @pt = (750,400); return( ($pt[0] + $_[0] )/2, ( $pt[1] + $_[1] )/2 ) }, ); # start coordinates $x = 40; $y = 400; $iter = 0; # weed out transients while( $iter++ != 100 ) { ( $x, $y ) = $iterative_set[ int rand 3 ]->( $x, $y ); } $iter = 0; while( $iter++ < 10000 ) { ( $x, $y ) = $iterative_set[ int rand 3 ]->( $x, $y ); $canvas->createRectangle( int $x, int $y, int $x, int $y, -outline=>undef, -fill=>'white' ); } MainLoop;
See 70931 for a method by Dr.Mu which is slower but saveable -> it doesn't use rectangles as pixels.


In reply to Sierpinski's Triangle - Tk by bl0rf

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others musing on the Monastery: (7)
As of 2024-05-20 16:32 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found