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Draws a text over an image using PostScript Type1 fonts


imagepstext

(PHP 4, PHP 5)

imagepstextDraws a text over an image using PostScript Type1 fonts

Description

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.

Parameters

image

An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().

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.

Return Values

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

Examples

Example #1 imagepstext() usage

<?php
// Create image handle
$im imagecreatetruecolor(200200);

// Allocate colors
$black imagecolorallocate($im000);
$white imagecolorallocate($im255255255);

// Load the PostScript Font
$font imagepsloadfont('font.pfm');

// Write the font to the image
imagepstext($im'Sample text is simple'$font12$black$white5050);

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

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

Notes

Note: This function is only available if PHP is compiled using --with-t1lib[=DIR] .

See Also

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



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