Hi,
using this seems to get rid of the garbled stuff:
./helloworld2 > output.png
Is output.png supposed to be an existing image or is it one that is created
on the fly?
The code refers to the book authors home directory:
my ($x1, $y1, $x2, $y2,
$x3, $y3, $x4, $y4) = $image->stringFT($black,
"/home/shawn/arial.ttf", 48, 0, 40, 120, "Hello World");
Is this where the image is read from or created to? The book site doesn't
give an image to work with.
thanks for helping a lost man,
Joel
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Wednesday, July 16, 2003 12:22 PM
To: Joel Lopez; [EMAIL PROTECTED]
Subject: RE: trying out examples in Oreilly's Perl Graphics Programming
------------------------------------------------
On 16 Jul 2003 11:28:31 -0700, Joel Lopez <[EMAIL PROTECTED]>
wrote:
> Hi,
>
> I have been trying to get this perl script to work, but I'm can't seem
> to figure out why it's not working. You can see it here:
>
> http://shawn.apocabilly.org/PGP/examples/example2-1.txt
>
> When I run it I get this on my screen:
>
> [EMAIL PROTECTED] imagemagick]# ./helloworld2
> Use of uninitialized value in subtraction (-) at ./helloworld2 line 31.
> Use of uninitialized value in addition (+) at ./helloworld2 line 31.
> Use of uninitialized value in addition (+) at ./helloworld2 line 31.
> Use of uninitialized value in subtraction (-) at ./helloworld2 line 31.
> PNG
<snip image data>
>
> I first typed it in, but then after I couldn't get it to work I copied
> and pasted it into a file.
>
> I'm using Red Hat 8 and have updated the libgd C library to version
> 1.8.4 and then used cpan to install GD.
>
> I ran the demo for libgd and it made the graphic it was supposed to so I
> think it's working ok. Is there anyway to find out if everything is
> installed correctly?
>
What makes you think it didn't work correctly? The script just prints the
image data to the screen, which is basically what that garbled mess was in
your e-mail. Try opening a file to write the image to, then print it to the
handle, then open the image in a image viewer....
As an option first try to capture the output of the script to a file and
open that in the image viewer:
./helloworld2 > output.png
The other messages are just warnings that we can help you get rid of later.
http://danconia.org
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