Re: Image Creation

James Taylor <james.taylor@xxxxxxxxxxxxxx> · Wed, 16 Feb 2005 09:36:42 +0000

Ahh now it becomes clear, you where trying to place the image inline. 
There is a way with base64 encoding, but it isnt supported by many 
browsers - you can actually say <IMG SRC="data:image/png,base64;[...]";> 
where the [...] is the base64 encoded image, so you would need to wrap 
an ob start and ob end around your code to catch output, then base64 
encode it then display it.

The problem is it dosnt work in IE because IE dosn't support this. Its 
also not very nice for anyone not wanting to view images as they will 
have downloaded the image even though they dont want to see it. There 
was a very good reason why I know that and have done it, but more then 
99.9% of the time, its not the way to go.

(the case in example was an embedded application on a machine that had a 
pseudo-web interface but no webserver - it would wait for a connection 
on a port then "dump" a stream of text which would be in HTML - there 
was no webserver there it would ignore any http headers sent).

Aaron Todd wrote:
Hey Guys,

I think I fixed my own problem.  I tried calling the PHP script from a 
different page like this:

<img border='0' src='include/pie.php?slice=100&total=200'>

This gave me the results I wanted.

Thanks for all your help.

Aaron

"Aaron Todd" <aaloki88@xxxxxxxxxxx> wrote in message 
news:20050215130954.5387.qmail@xxxxxxxxxxxxxxxx

I just wrote a little script to play around with the GD library but I am 
having a problem displaying it in the browser.  I have not problem at all 
when I just run the script.  But I was trying to make the image in a custom 
function which will return the image when its called.  All I end up getting 
is a bunch of weird characters.

Here's my code:
function makepie($slice, $total){
  $height = 150;
  $width = 150;
  $im = ImageCreate($width, $height);
  $bck = ImageColorAllocate($im, 255,255,255);
  $black = ImageColorAllocate($im, 0, 0, 0);
  $red = ImageColorAllocate($im, 255, 0, 0);
  imagefilledellipse($im, 75, 75, 125, 125, $red);
  imageellipse($im, 75, 75, 125, 125, $black);

  //Making the Slice

  $pieslice = (($slice / $total) * 360) + 315;

  imagefilledarc($im, 75, 75, 125, 125, 315, $pieslice, $black, 
IMG_ARC_PIE);

  //Return
  header("Content-type: image/png");
  echo ImagePNG($im);
}

Anyone have any idea why I cant return the image?

Thanks 

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