imagesavealpha
Use a brush to create a thick line.
To create a 3x3 red brush:
<?php
$brush_size = 3;
$brush = imagecreatetruecolor($brush_size,$brush_size);
$brush_color = imagecolorallocate($brush,255,0,0);
imagefill($brush,0,0,$brush_color);
imagesetbrush($im,$brush);
?>
Then use imageline() or imagepolygon() with IMG_COLOR_BRUSHED as the color.
To stop using the brush, destroy it:
<?php imagedestroy($brush); ?>
The brush can also be created from an existing image.
imagesetbrush
(PHP 4 >= 4.0.6, PHP 5)
imagesetbrush — Set the brush image for line drawing
Description
bool imagesetbrush
( resource $image
, resource $brush
)
imagesetbrush() sets the brush image to be used by all line drawing functions (such as imageline() and imagepolygon()) when drawing with the special colors IMG_COLOR_BRUSHED or IMG_COLOR_STYLEDBRUSHED.
Parameters
- image
-
An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
- brush
-
An image resource
Return Values
Returns TRUE on success or FALSE on failure.
Notes
Note: You need not take special action when you are finished with a brush, but if you destroy the brush image, you must not use the IMG_COLOR_BRUSHED or IMG_COLOR_STYLEDBRUSHED colors until you have set a new brush image!
add a note
User Contributed Notesimagesetbrush
brent at ebrent dot net
31-Jul-2006 06:54
31-Jul-2006 06:54