I don't have Tk or GD available to me at the moment, so I'm just theorizing, but...

Could you make the image a GD object and then use that as the -data for your Tk::Photo? Then you could maybe use GD to manipulate the image (GD::Image::copyResized).

I know it's not exactly what you were looking for, but I don't see any way to scale a Tk::Photo in non-integer steps. The resizing looks to be all single pixel based in the Tk backend as opposed to lengths. You can't, e.g., take the 4.5th pixel or make something 80.493 pixels long. I don't see any non-integer manipulation functions in tkImgPhoto.h

In reply to Re: Resizing images && Tk by archon
in thread Resizing images && Tk by Jouke

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.