imagefill can't deal with alpha colors, use imagefilledrectangle instead.
<?php
header("Content-Type: image/png");
$im = imagecreatefrompng("img/button.png");
if (empty($_GET['alpha']))
{$_GET['alpha'] = 10;}
$color = imagecolorallocatealpha($im, 255, 255, 255, $_GET['alpha']);
imagefillalpha($im, $color);
imagepng($im);
imagedestroy($im);
function ImageFillAlpha($image, $color)
{
imagefilledrectangle($image, 0, 0, imagesx($image), imagesy($image), $color);
}
?>
imagefill
(PHP 4, PHP 5)
imagefill — Remplissage
Description
bool imagefill
( resource $image
, int $x
, int $y
, int $color
)
Effectue un remplissage avec la couleur color , dans l'image image , à partir du point de coordonnées (x , y ) (le coin supérieur gauche est l'origine (0,0)).
Liste de paramètres
- image
-
Une ressource d'image, retourné par une des fonctions de création d'images, comme imagecreatetruecolor().
- x
-
X : coordonnée du point de départ
- y
-
Y : coordonnée du point de départ
- color
-
La couleur de remplissage. Un identifiant de couleur créé par la fonction imagecolorallocate()
Valeurs de retour
Cette fonction retourne TRUE en cas de succès, FALSE en cas d'échec.
Exemples
Exemple #1 Exemple avec imagefill()
<?php
$im = imagecreatetruecolor(100, 100);
// Fixe le fond rouge
$red = imagecolorallocate($im, 255, 0, 0);
imagefill($im, 0, 0, $red);
header('Content-type: image/png');
imagepng($im);
imagedestroy($im);
?>
L'exemple ci-dessus va afficher quelque chose de similaire à :
imagefill
Cypog
17-Mar-2008 08:27
17-Mar-2008 08:27
info at educar dot pro dot br
09-Mar-2007 07:54
09-Mar-2007 07:54
Example 1
The filled region will be external to a demarcated region, if the initial coordinates will be outside of this region.
<?php
$src621 = imagecreate(200,200);
$clr_1_621 = imagecolorallocate($src621, 255, 255, 0);
$clr_2_621 = imagecolorallocate($src621, 0, 0, 250);
$clr_4_621 = imagecolorallocate($src621, 2,2,55);
imagerectangle($src621, 100, 100, 150, 150, $clr_4_621);
imagefill($src621, 110, 110, $clr_2_621);
header("Content-Type: image/png");
imagepng ($src621);
imagedestroy($src621);
?>
Example 2
The filled region will be internal to a demarcated region, if the initial coordinates will be inside of this region.
<?php
$src622 = imagecreate(200,200);
$clr_1_622 = imagecolorallocate($src622, 255, 255, 0);
$clr_2_622 = imagecolorallocate($src622, 0, 0, 250);
$clr_4_622 = imagecolorallocate($src622, 2,2,55);
imagerectangle($src622, 100, 100, 150, 150, $clr_4_622);
imagefill($src622, 10, 10, $clr_2_622);
header("Content-Type: image/png");
imagepng ($src622);
imagedestroy($src622);
?>
See another examples at:
http://www.educar.pro.br/a/gdlib/index.php?pn=50&tr=97
Gromitt
06-Mar-2007 10:14
06-Mar-2007 10:14
If you need to fill a whole image (immediatly after its creation for instance), consider applying a filled rectangle instead, using imagefilledrectangle() :
<?php
$gdImage = imagecreatetruecolor(100, 100);
$gdColor = imagecolorallocate($gdImage, 255, 0, 0); // red
imagefilledrectangle($gdImage, 0, 0, 99, 99, $gdColor);
?>
which will require much less logic and processing from GD.
razonklnbd at yahoo dot com
24-Sep-2006 03:32
24-Sep-2006 03:32
I spend more then two hour to find a function that can fill a pattern or file as background instead of color. but i can't find. so i develop the following function. i though this function will save time who need it...
Function will get four parameter
1. Main Image Identifier
2. Pattern Image Identifier
3. Final Image Width
4. Final Image Height
If you set final image width or height is less then main image width or height then you may get wrong result
<?php
function fill_with_patternfile($p_main_im, $p_patternfile_im, $p_width, $p_height){
$pimiX=$p_patternfile_im;
$pw=imagesx($pimiX);
$ph=imagesy($pimiX);
$targetImageIdentifier=imagecreatetruecolor($p_width,$p_height);
if($pw<$p_width && $ph<$p_height){
for($pX=0;$pX<$p_width;$pX+=$pw){
for($pY=0;$pY<$p_height;$pY+=$ph){
imagecopy($targetImageIdentifier,$pimiX,$pX,$pY,0,0,$pw,$ph);
}
}
}else imagecopy($targetImageIdentifier,$pimiX,0,0,0,0,$pw,$ph);
$w=imagesx($p_main_im);
$h=imagesy($p_main_im);
$nX=0;
if($w<$p_width) $nX=intval(($p_width-$w)/2);
$nY=0;
if($h<$p_height) $nY=intval(($p_height-$h)/2);
imagecopy($targetImageIdentifier,$p_main_im,$nX,$nY,0,0,$w,$h);
return $targetImageIdentifier;
}
// If you want to use a gif or png file as
// pattern file you need to change function below :)
$pattern_im=imagecreatefromjpeg('logo.jpg');
// If you want to use a gif or png file as
// main file you need to change function below :)
$main_im=imagecreatefromjpeg('r2.jpg');
// call the function width 500 and height 500
// if your width and height is less then main images
// width and height then you can't understand any change!
$final=fill_with_patternfile($main_im, $pattern_im, 500, 500);
// view the image and destroy all instance
header('Content-type: image/jpeg');
imagejpeg($final);
imagedestroy($final);
imagedestroy($main_im);
imagedestroy($pattern_im);
exit();
?>
jonathan dot aquino at gmail dot com
08-Jun-2006 03:12
08-Jun-2006 03:12
Use imageSaveAlpha($image, true); to preserve transparency.
gelak
29-Nov-2005 11:27
29-Nov-2005 11:27
//A smiley face ;]
<?php
header('Content-type: image/png');
$smile=imagecreate(400,400);
$kek=imagecolorallocate($smile,0,0,255);
$feher=imagecolorallocate($smile,255,255,255);
$sarga=imagecolorallocate($smile,255,255,0);
$fekete=imagecolorallocate($smile,0,0,0);
imagefill($smile,0,0,$kek);
imagearc($smile,200,200,300,300,0,360,$fekete);
imagearc($smile,200,225,200,150,0,180,$fekete);
imagearc($smile,200,225,200,123,0,180,$fekete);
imagearc($smile,150,150,20,20,0,360,$fekete);
imagearc($smile,250,150,20,20,0,360,$fekete);
imagefill($smile,200,200,$sarga);
imagefill($smile,200,290,$fekete);
imagefill($smile,155,155,$fekete);
imagefill($smile,255,155,$fekete);
imagepng($smile);
?>
pisu at estmail dot hu
29-Nov-2005 01:48
29-Nov-2005 01:48
chess board
<?php
$kep = imagecreate(400,400);
$fekete = imagecolorallocate($kep,0,0,0);
$feher = imagecolorallocate($kep,255,255,255);
//imagefill($kep,50,50,$fekete);
imagefill($kep,50,20,$feher);
for ($i=1;$i<8;$i++) {
$k = $i*50;
imageline($kep,0,$k,400,$k,$fekete);
imageline($kep,$k,0,$k,400,$fekete);
}
for ($i=0;$i<8;$i++) {
for ($j=0;$j<8;$j++) {
$x = $i*50 + 2;
$y = $j*50 + 2;
if ( ( ($i % 2) + ($j % 2) ) % 2 == 0 ) {
imagefill($kep,$x,$y,$fekete);
}
}
}
// imagecolortransparent($kek,$piros);
header('content-type : image/png');
imagepng($kep);
?>
colin at galaxyinteractive dot net
28-Jul-2005 08:26
28-Jul-2005 08:26
Didn't see this documented, although it's outlined in imagefilledrectangle, it wasn't quite so obvious to me at first
imageSetTile($image,$imageBack);
imagefill($image,0,0,IMG_COLOR_TILED);
Will fill an image with a texture (this is great as I'm building a logo/template creator)
Igor Garcia
28-Jun-2003 03:18
28-Jun-2003 03:18
This function, cannot deal with transparencies.
So you need to use imagecolorallocate instead of imagecolorallocatealpha.
Thus, be careful with color variables that allready set with imageallocatecoloralpha because this can slow-down or hang-up your system.
08-Feb-2003 05:49
Actually, it can handle pre-transparent images. To remove it you need to do something like:
imagecolortransparent($img, 0);
to null out the previous transparency colors. ;)
aqmprod at iname dot com
09-Jan-2000 05:08
09-Jan-2000 05:08
This function does not seem to work with images already been transparent. If you fill at x=0, y=0, and there are still transparent parts that you did
not reach with your fill, they change to a different color.
The ImageColorSet function seems to be the solution, but i can't work with transparancy.
