Dear monks, I'm having problems printing graphs to a web-page from my cgi script. I'm creating the graphs with GD::Graph but when they are displayed on the web I get a load of gibberish like this:

K�H*�՚��@�fr�'Hx��A�����&%��4ڃp!7)*R9�a
Can anyone tell me whats wrong with the script? The graph is created and printed to file.gif, but is not displayed on my cgi webpage.
Thanks!

@data = (
    ["1st","2nd","3rd","4th","5th","6th","7th", "8th", "9th"],
    [    1,    2,    5,    6,    3,  1.5,    1,     3,     4]
  );
                                                                      
+                                                           
my $graph = GD::Graph::points->new(400, 300);
                                                                      
+                                                           
  $graph->set(
      x_label           => 'X Label',
      y_label           => 'Y label',
      title             => 'Some simple graph',
      y_max_value       => 8,
      y_tick_number     => 8,
      y_label_skip      => 2
  ) or die $my_graph->error;
                                                                      
+                                                           
                                                                      
+                                                           
  my $gd = $graph->plot(\@data) or die $my_graph->error;
  open(IMG, '>file.gif') or die $!;
  binmode IMG;
  print IMG $gd->png;
  close IMG;
  binmode STDOUT;
  print $gd->png;
[download]

---

---

• 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.