in reply to Re^4: Which tk to use and how to show images?
in thread Which tk to use and how to show images?

Plus if you wanted to make the graphs interactive (make elements in the graph responsive to Mouse events) within Tk, then it would be easier with Canvas implementation -- or Tk::Graph for that matter. I'd like to see that module adapted for Tk::Zinc. It would gain some nice additional capabilities over Canvas.

  • Comment on Re^5: Which tk to use and how to show images?

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Re^6: Which tk to use and how to show images?
by BrowserUk (Patriarch) on Nov 04, 2005 at 17:58 UTC

    It would be nice if there was a Canvas method for dumping the image it renders, into the various graphic formats. I realise that you can query the pels and could format them up yourself, or import thme back into a GD object for outputting as an image, but that would be very slow.

    Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
    Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal?
    "Science is about questioning the status quo. Questioning authority".
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[reply]
      There is Tk::WinPhoto, which captures to various formats. It has a few drawbacks, one of which is being slow. There is also a win32 version now Tk::WinPhoto for ActiveState.
      I'm not really a human, but I play one on earth. flash japh
[reply]
      Well, there is: $canvas->postscript(...), but it tends to be imperfect -- especially dealing with fonts. It looks as though this is a future option for Zinc as well, but it isn't there yet.
[reply]

        The postscript option is okay if your wanting to print it, but not so great of you want to incorporate the graph into a web page or slide etc.

        Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
        Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal?
        "Science is about questioning the status quo. Questioning authority".
        In the absence of evidence, opinion is indistinguishable from prejudice.
[reply]

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