imagepsbbox
(PHP 4, PHP 5)
imagepsbbox — Give the bounding box of a text rectangle using PostScript Type1 fonts
Descrizione
Gives the bounding box of a text rectangle using PostScript Type1 fonts.
The bounding box is calculated using information available from character metrics, and unfortunately tends to differ slightly from the results achieved by actually rasterizing the text. If the angle is 0 degrees, you can expect the text to need 1 pixel more to every direction.
Elenco dei parametri
- text
-
- font
-
Può essere 1, 2, 3, 4, 5 per i font interni con codifica latin2 (dove numeri più alti corrispondono a font più grandi) o qualsiasi identificatore di font registrato con imageloadfont().
- size
-
size is expressed in pixels.
- space
-
Allows you to change the default value of a space in a font. This amount is added to the normal value and can also be negative. Expressed in character space units, where 1 unit is 1/1000th of an em-square.
- tightness
-
tightness allows you to control the amount of white space between characters. This amount is added to the normal character width and can also be negative. Expressed in character space units, where 1 unit is 1/1000th of an em-square.
- angle
-
angle is in degrees.
Valori restituiti
Returns an array containing the following elements:
| 0 | left x-coordinate |
| 1 | upper y-coordinate |
| 2 | right x-coordinate |
| 3 | lower y-coordinate |
Note
Nota: Questa funzione è disponibile soltanto se il PHP è compilato utilizzando --with-t1lib[=DIR].