Jochem Maas wrote:
> Juan Felipe Alvarez Saldarriaga wrote:
>
>> Hey list! :)
>>
>
> my name's not list but what the heck:
>
> take a look at these function, they should light the way:
>
> http://php.net/manual/en/function.imageftbbox.php
> http://php.net/manual/en/function.imagepsbbox.php
> http://php.net/manual/en/function.imagettfbbox.php
> http://php.net/imageloadfont
>
> everything is pixels.
>
> there is no dpi - your screen & printer has a certain dpi and that determine
> how big the image displays on either.
>
> okay not much help - I had brain freeze half thru.
>
>

K, np, Ill try use imagettfbbox() function instead.

Thx.
>> I've got a problem trying to calculate a string width using an X font
>> with some Y font size to use in an svg-to-pdf conversion.
>>
>> This is what I try to do:
>> 1. Create a dummy image.
>> 2. Set the text there using font X and the font size Y (it seems that
>> when I create the image it renders it at 72dpi so I need to reduce it at
>> 300dpi)
>>
>> I'm not sure what the imagettftext() function returns, are those values
>> measured in pixels ?
>>
>
> yes.
>
>
>> I read in some page that the proportion to reduce
>> the image at 300dpi is reduce the size to 24% of its original size.
>>
>> http://www.printingforless.com/resolution.html
>>
>> That's the code:
>>
>> ***
>>
>> // Create dummy image.
>> $rsc_image = imagecreate( 1, 1 );
>>
>> // Set image.
>> $arr_ftx = imagettftext( $rsc_image, $int_font_size, 0, 0, 0, -1,
>> "./fonts/{$str_font_file}", $str_variable_value );
>> // Destroy dummy image.
>> imagedestroy( $rsc_image );
>>
>> // Set structure of widths.
>> // TODO: Magik numbers.
>> $arr_variable_pixels[$str_variable_index] = ( ( $arr_ftx[2] * 24 ) / 100 );
>>
>> ***
>>
>> Thx for any help.
>>
>>
>
>
>