Draws a text over an image using PostScript Type1 fonts

설명

array imagepstext ( resource $image , string $text , resource $font_index , int $size , int $foreground , int $background , int $x , int $y [, int $space= 0 [, int $tightness= 0 [, float $angle= 0.0 [, int $antialias_steps= 4 ]]]] )

Draws a text on an image using PostScript Type1 fonts.

Refer to PostScript documentation about fonts and their measuring system if you have trouble understanding how this works.

인수

image: imagecreatetruecolor() 등의 이미지 생성 함수에서 반환한 이미지 자원.
text: The text to be written.
font_index: A font resource, returned by imagepsloadfont().
size: size is expressed in pixels.
foreground: The color in which the text will be painted.
background: The color to which the text will try to fade in with antialiasing. No pixels with the color background are actually painted, so the background image does not need to be of solid color.
x: x-coordinate for the lower-left corner of the first character.
y: y-coordinate for the lower-left corner of the first character.
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.
antialias_steps: Allows you to control the number of colours used for antialiasing text. Allowed values are 4 and 16. The higher value is recommended for text sizes lower than 20, where the effect in text quality is quite visible. With bigger sizes, use 4. It's less computationally intensive.

반환값

This function returns an array containing the following elements:

0	lower left x-coordinate
1	lower left y-coordinate
2	upper right x-coordinate
3	upper right y-coordinate

예제

Example #1 imagepstext() 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');

// Write the font to the image
imagepstext($im, 'Sample text is simple', $font, 12, $black, $white, 50, 50);

// Output and free memory
header('Content-type: image/png');

imagepng($im);
imagedestroy($im);
?>

주의

Note: 이 함수는 --enable-t1lib를 사용하여 PHP를 컴파일 했을 경우에만 사용할 수 있습니다.

참고

imagepsbbox() - Give the bounding box of a text rectangle using PostScript Type1 fonts