How to display an image (Image generation)

hai ,
I am using the code
Header("Content-type: image/gif");
$image = ImageCreate(100,50);
$black = ImageColorAllocate($image,0,0,0);
$white = ImageColorAllocate($image,255,255,255);
ImageArc($image,50,25,48,0,$white);
ImageGif($image);
Imagedestroy($image);
?>
to display an image but the code is not working. how shud the code be
and do i need to enable any libraries to do this. i have to get an image
and get the midpoint(xy coordinate) of that image . how do i do that.
if i run the above code i won't get any error but nothing will be
displayed. how do i do this.
Arun


---------------------------(end of broadcast)---------------------------
TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org

Re: How to display an image (Image generation)

Hi,

> I am using the code
> > Header("Content-type: image/gif");
> $image = ImageCreate(100,50);
> $black = ImageColorAllocate($image,0,0,0);
> $white = ImageColorAllocate($image,255,255,255);
> ImageArc($image,50,25,48,0,$white);
> ImageGif($image);
> Imagedestroy($image);
> ?>
> to display an image but the code is not working. how shud the code be
> and do i need to enable any libraries to do this. i have to get an
> image and get the midpoint(xy coordinate) of that image . how do i do
> that. if i run the above code i won't get any error but nothing will be
> displayed. how do i do this.

The previous code seams fine to me.

What version of GD are you using? If it's 1.6, as said in PHP docs

"Note: Since all GIF support was removed from the GD library in version
1.6, this function is not available if you are using that version of the
GD library."
there wont be gif support.

Have you tried the same code using other formats, like jpeg, png?

Try sending the output to a file( use the second optional parameter to
imagegif, imagejpeg, etc) and check the file size.
Miguel




---------------------------(end of broadcast)---------------------------
TIP 2: you can get off all lists at once with the unregister command
(send "unregister YourEmailAddressHere" to majordomo@postgresql.org)