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Re: Using imagettfbbox with Arial Bold [message #173253 is a reply to message #173252]

Thu, 31 March 2011 07:16

alvaro.NOSPAMTHANX
Messages: 277
Registered: September 2010

Karma:

Senior Member

El 31/03/2011 6:26, jwcarlton escribió/wrote:
> I'm using imagettfbbox() to find the width of a variable-driven text
> object. Like this:
>
> $variable = "Business";
> $fontsize = "9";
> $fontface = "arialbd.ttf";
>
> function get_bbox($text) { return imagettfbbox($fontsize, 0,
> $fontface, $text); }

If this is your real code, it should be throwing a couple of notices:
the $fontsize and $fontface variables are not defined inside the function.

>
> function t_width($text) {
> $box = get_bbox($text);
> $width = $box[4] - $box[6];
>
> return $width;
> }
>
> $text_width = t_width($variable);
>
> If I use arial.ttf, this works perfect. But I'm trying to find the
> width of Arial Bold, which I assume is arialbd.ttf. When I change
> $fontface to "arialbd.tff", the width comes out shorter than it should
> be (my test phrases are coming out with a width anywhere from 0 to 7px
> shorter than they really are).
>
> For example,Business actually
> measures 52px, but the above is returning 49px.

Are you using a tag as reference?

The way TTF fonts get rendered is not unique and universal. It depends
on the renderer and its settings. What GD2 can tell you (and should be
telling you) is the size of the font as rendered by GD2 in that
computer. If you want to establish a correct comparison you need to
actually draw the font from PHP and grab a screenshot.

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-- http://alvaro.es - Álvaro G. Vicario - Burgos, Spain
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[Message index]

		Using imagettfbbox with Arial Bold By: jwcarlton on Thu, 31 March 2011 04:26
		Re: Using imagettfbbox with Arial Bold By: alvaro.NOSPAMTHANX on Thu, 31 March 2011 07:16
		Re: Using imagettfbbox with Arial Bold By: jwcarlton on Thu, 31 March 2011 07:47
		Re: Using imagettfbbox with Arial Bold By: alvaro.NOSPAMTHANX on Thu, 31 March 2011 11:26
		Re: Using imagettfbbox with Arial Bold By: The Natural Philosoph on Thu, 31 March 2011 13:27
		Re: Using imagettfbbox with Arial Bold By: jwcarlton on Fri, 01 April 2011 03:49
		Re: Using imagettfbbox with Arial Bold By: alvaro.NOSPAMTHANX on Fri, 01 April 2011 07:26
		Re: Using imagettfbbox with Arial Bold By: jwcarlton on Tue, 05 April 2011 03:27

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