These are not the solutions. I need the value to be plotted correctly

Another possibility is to plot your data, then crop it off.... meaning take only say the lower 640 pixels of the graph and discard the rest. That would maintain slope, keep the base axis and legend in line. The overshot points would not be visible, but the slope leading to it would be.... in waveform analysis it's called "clipping". I'm sure GD does cropping, google for "perl GD crop"

Isn't there a method in GD::Graph that would make the plotting of the curve dependent on the y_max_value?

Yeah, you would need to scale your data. Loop thru your data before plotting and detect the highest value, then scale everthing accordingly.

I'm not really a human, but I play one on earth.
Old Perl Programmer Haiku

In reply to Re: Hide plotted data that exceeds y_max_value in graph produced by GD::Graph::Lines by zentara
in thread Hide plotted data that exceeds y_max_value in graph produced by GD::Graph::Lines by djodja

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.