PHParadise | category image editing | copy source code of translucent text

PHParadise > image editing > translucent text

Translucent Text

Translucent text is not as simple as outlining or shadowing, but it's not particularly hard. A translucent image is just something partially invisible, or clear. This is done by drawing the image onto a buffer, editing the buffer, and then merging the buffer back onto the original image.

copy the code of image editing / translucent text

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<?php

/*------------------------------------------------------------------------------
|
|                             PHParadise source code
|
|-------------------------------------------------------------------------------
|
| file:             translucent text
| category:         image editing
|
| last modified:    Fri, 01 Jul 2005 23:59:21 GMT
| downloaded:       Thu, 24 May 2012 08:21:43 GMT as copy from textarea
|
| code URL:
| http://phparadise.de/php-code/image-editing/translucent-text/
|
| description:
| Translucent Text Translucent text is not as simple as outlining or shadowing,
| but it's not particularly hard. A translucent image is just something partially
| invisible, or clear. This is done by drawing the image onto a buffer, editing
| the buffer, and then merging the buffer back onto the original image.
|
------------------------------------------------------------------------------*/

function imagettftexttransparent(&$im,$size,$angle,$x,$y,&$col,$fontfile,$text,$pct)
{
	// Get the image width
	$im_w = imagesx($im);
	// Get the image height
	$im_h = imagesy($im);
	// Create a buffer
	$new = imagecreate($im_w,$im_h);
	// Set a pixel down, so we can easily get the color
	imagesetpixel($im,$im_w -1,0,$col);
	// Get the color at that pixel
	$index = imagecolorat($im,$im_w-1,0);
	// Get the index of that color
	$rgb = imagecolorsforindex($im,$index);
	$r = $rgb['red'];	// Get the red value
	$g = $rgb['green'];	// Get the green value
	$b = $rgb['blue'];	// Get the blue value
	// Allocate this color on the buffer
	$color = imagecolorallocate($new,$r,$g,$b);
	// Copy the old image onto the buffer
	$copy = imagecopy($new,$im,0,0,0,0,$im_w,$im_h);
	// Draw the text
	$text = imagettftext($new,$size,$angle,$x,$y,$color,$fontfile,$text);
	// Copy the buffer back onto the original image
	$merge = imagecopymerge($im,$new,0,0,0,0,$im_w,$im_h,$pct);
	// Destroy the buffer
	imagedestroy($new);
}
?>

PHParadise source code of “translucent text” in category “image editing”

PHParadise > image editing > translucent text

copy the code of image editing / translucent text