ScotlandPHP 2019

imagesetbrush

(PHP 4 >= 4.0.6, PHP 5, PHP 7)

imagesetbrushSet the brush image for line drawing

Descrição

imagesetbrush ( resource $image , resource $brush ) : bool

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.

Cuidado

You need not take special action when you are finished with a brush, but if you destroy the brush image (or let PHP destroy it), you must not use the IMG_COLOR_BRUSHED or IMG_COLOR_STYLEDBRUSHED colors until you have set a new brush image!

Parâmetros

image

Um resource de imagem, retornado por funções de criação de imagens, como imagecreatetruecolor().

brush

An image resource.

Valor Retornado

Retorna TRUE em caso de sucesso ou FALSE em caso de falha.

Exemplos

Exemplo #1 imagesetbrush() example

<?php
// Load a mini php logo
$php imagecreatefrompng('./php.png');

// Create the main image, 100x100
$im imagecreatetruecolor(100100);

// Fill the background with white
$white imagecolorallocate($im255255255);
imagefilledrectangle($im0029999$white);

// Set the brush
imagesetbrush($im$php);

// Draw a couple of brushes, each overlaying each
imageline($im50505060IMG_COLOR_BRUSHED);

// Output image to the browser
header('Content-type: image/png');

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

O exemplo acima irá imprimir algo similar à:

Output of example : imagesetbrush()

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User Contributed Notes 1 note

up
-1
brent at ebrent dot net
12 years ago
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.
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