(PHP 4, PHP 5)
imagepsbbox — Give the bounding box of a text rectangle using PostScript Type1 fonts
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.
The text to be written.
A font resource, returned by imagepsloadfont().
size is expressed in pixels.
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 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 is in degrees.
Returns an array containing the following elements:
| 0 | left x-coordinate |
| 1 | upper y-coordinate |
| 2 | right x-coordinate |
| 3 | lower y-coordinate |
Example #1 imagepsbbox() usage
<?php
// Create image handle
$im = imagecreatetruecolor(200, 200);
// Allocate colors
$black = imagecolorallocate($im, 0, 0, 0);
$white = imagecolorallocate($im, 255, 255, 255);
// Load the PostScript Font
$font = imagepsloadfont('font.pfm');
// Make a bounding box for the font
$bbox = imagepsbbox('Sample text is simple', $font, 12);
// Define our X and Y cordinates
$x = ($bbox[2] / 2) - 10;
$y = ($bbox[3] / 2) - 10;
// Write the font to the image
imagepstext($im, 'Sample text is simple', $font, 12, $black, $white, $x, $y);
// Output and free memory
header('Content-type: image/png');
imagepng($im);
imagedestroy($im);
?>
Note: 이 함수는 --enable-t1lib를 사용하여 PHP를 컴파일 했을 경우에만 사용할 수 있습니다.