Peamasii has asked for the wisdom of the Perl Monks concerning the following question:

Hi, I'm using Image::Magick and trying to crop an image using Shave:

$image->Shave($width=>$crop_size);

I get the error:
Your vendor has not defined PerlMagick macro main::Shave

Does anyone know what this means and how I can use that method? It works fine if I pass a number instead of the variable.

Thanks!

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(tye)Re: can't find macro in Image::Magick
by tye (Sage) on Nov 21, 2001 at 23:52 UTC

    You don't want a $ in front of "width". The call should be:     $image->Shave("width"=>$crop_size); where the quotes are optional because of how => works.

            - tye (but my friends call me "Tye")
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      Thanks for pointing out a typo ;-) However the problem still occurs:

      $crop_size = int($v - $max_size);
      print "Crop size $crop_size\n";
      $x = $image->Shave(width=>$crop_size);

      Output:

      Crop size 218
      Your vendor has not defined PerlMagick macro main::Shave

      Can't figure it out, because a numeric value works, so do other methods like Crop! Can someone else try it on their systems?
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        Note that this error message probably means that AUTOLOAD is being invoked. So one thought I had was that Shave() isn't available in your version of PerlMagick (but you imply that $image->Shave(width=>218) works). I don't understand why it is saying "main::Shave", though...

        After downloading PerlMagick, I see that the "main::" part is just due to some strange code in PerlMagick's AUTOLOAD which I think just needs to be removed. But that has no bearing on your problem.

        So I'm even more convinced that somehow your version of PerlMagick doesn't have a Shave() method and that $image->Shave(width=>218) will not work.

                - tye (but my friends call me "Tye")
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