I cant seem to get GD::Graph::lines3d to hide undef value from it's graph, however GD::Graph::lines does work. Does anyone have any suggestions as to what I may be doing wrong?

GD::Graph::lines3d 
use CGI;
use GD::Graph::lines3d;
my $cgi = new CGI;
  my @data = ( 
            ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "
+Sep", "Oct", "Nov", "Dec"],
            [undef,undef,undef,undef,undef,undef,undef,undef,undef,und
+ef,undef,undef],
            [undef, undef, undef, undef, 13,  0,  undef,  200,  200,  
+180,  160,  260],
            [undef, undef, 22, 15, 7,  -10,  undef,  undef,  400,  600
+,  100,  -260]
        );
  my $graph = new GD::Graph::lines3d( 700, 400 );
  $graph->set(skip_undef => 1);
  my $gd = $graph->plot( \@data );
  
  print $cgi->header(-type => "image/png", -expires => "-1d");
  print $gd->png;

[download]
GD::Graph::lines 
use CGI;
use GD::Graph::lines;
my $cgi = new CGI;
  my @data = ( 
            ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "
+Sep", "Oct", "Nov", "Dec"],
            [undef,undef,undef,undef,undef,undef,undef,undef,undef,und
+ef,undef,undef],
            [undef, undef, undef, undef, 13,  0,  undef,  200,  200,  
+180,  160,  260],
            [undef, undef, 22, 15, 7,  -10,  undef,  undef,  400,  600
+,  100,  -260]
        );
  my $graph = new GD::Graph::lines( 700, 400 );
  $graph->set(skip_undef => 1);
  my $gd = $graph->plot( \@data );
  
  print $cgi->header(-type => "image/png", -expires => "-1d");
  print $gd->png;

[download]

In reply to GD::Graph::lines3d undef values dont work by ranqor

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


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.