in reply to Can't call method "scaleY" on an undefined value at C:/strawberry/perl/site/lib/ Image/Seek.pm line 137.

A good thing to check would be whether open returned an error or not.
  • Comment on Re: Can't call method "scaleY" on an undefined value at C:/strawberry/perl/site/lib/ Image/Seek.pm line 137.
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Re^2: Can't call method "scaleY" on an undefined value at C:/strawberry/perl/site/lib/ Image/Seek.pm line 137.
by tonyc (Hermit) on Jul 28, 2009 at 04:21 UTC
    I've been considering allowing open (or read, the official name) to be called as a class method instead, to avoid errors like this: 
    my $img = Imager->open(file => $foo)
  or die Imager->errstr;

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    It would reduce some of the useless boilerplate Imager->new
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      The typical shortcut for 
      my $img = Imager->new();
$img->read(...)
    or ...;

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      is 
      my $img = Imager->new(...)
    or ...;

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        This doesn't work, same line 137 error returned.
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      This 
          my $img = Imager->new();
    $img->open(file => "photo-1.jpg")or die Imager->errstr;

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      Gave me this message: 
      Can't locate Imager/File/JPEGReader.pm in @INC (@INC contains: C:/stra
+wberry/per
l/lib C:/strawberry/perl/site/lib .) at C:/strawberry/perl/site/lib/Im
+ager.pm li
ne 1538.
        ...propagated at processimage.pl line 8.

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      Which I guess is progress however I don't seem to have JPEGReader.pm and cpan command line does not seem to know about it.
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        Did you compile in JPEG support?

        Early in my make output: 

               gif: includes not found - libraries not found
     ungif: includes not found - libraries not found
      jpeg: includes not found - libraries not found   <--
       png: includes not found - libraries not found
      tiff: includes not found - libraries not found
 freetype2: includes not found - libraries not found
 freetype2: not available
  T1-fonts: includes not found - libraries not found
  TT-fonts: includes not found - libraries not found
       w32: includes found - libraries found

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        So no JPEG support for me.

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