Posted by movement_eric on 07/20/07 18:31

On Jun 7, 7:49 pm, Rik <luiheidsgoe...@hotmail.com> wrote:
> On Thu, 07 Jun 2007 19:24:39 +0200, -Lost <maventheextrawo...@techie.com>
> wrote:
>
>
>
> > -Lost wrote:
> >> gbbulldog wrote:
> >>> On 6 Jun, 05:34, -Lost <maventheextrawo...@techie.com> wrote:
> >>>> Anyone know offhand how to center atextwithin the bounding box of an
> >>>>image(width-wise at least) without the Freetype library?
>
> >>>>GD- orImageMagick-specifc code would do nicely.
>
> >>> 1. Determine the width of theimage.
> >>> 2. Determine the width of thetext, (I'm assuming you'll be outputting
> >>>textusing TTF?), using imagettfbbox()
> >>> 3. The left-hand position of thetextshould be : (image'swidth / 2)
> >>> - (textwidth / 2)
> >> Thanks!
>
> > Ooops! I have no clue why I said thanks.
>
> > I specifically said "without the Freetype library."
>
> > That function depends on its functionality to work as expected.
>
> Write your own variant of the freetypre library if it isn't available,
> that's the only solution. There's no other way you can know the width of
> dynamictextwith an arbitrary font. Yes, it's a pain, so if the library
> isn't available seriously consider changing hosts and/or change the server.
>
> --
> Rik Wasmus

function getTextPosition($text,$center)
{
$im_tmp = imagecreatetruecolor(500,500);
$point_array = imagettftext($im_tmp,
20,0,0,50,imagecolorallocate($im0,0,0),'C:\Windows\Fonts\Verdana.ttf',
$text);
imagedestroy($im_tmp);
$left_x = $point_array[0];
$right_x = $point_array[2];
$length = $right_x - $left_x;
$text_position = $center - ($length/2);
return $text_position;
}


Sorry about the poor coding but this ought to take care of it. The
function will return the x coordinate that your text should be placed
at to be centered on $center. Just adjust the imagettftext function
to use your own font and size. All it does within the function is
place that text on a dummy image and read the points off of it. Let
me know if this works.

Eric

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