imagesetbrush

(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)

imagesetbrushSet the brush image for line drawing

Descrizione

imagesetbrush(GdImage $image, GdImage $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.

Attenzione

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!

Elenco dei parametri

image

Una risorsa immagine, restituita da una delle funzioni di creazione immagine, come imagecreatetruecolor().

brush

An image object.

Valori restituiti

Restituisce true in caso di successo, false in caso di fallimento.

Log delle modifiche

Versione Descrizione
8.0.0 image and brush expect GdImage instances now; previously, resources were expected.

Esempi

Example #1 imagesetbrush() example

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

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

// Fill the background with white
$white = imagecolorallocate($im, 255, 255, 255);
imagefilledrectangle($im, 0, 0, 299, 99, $white);

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

// Draw a couple of brushes, each overlaying each
imageline($im, 50, 50, 50, 60, IMG_COLOR_BRUSHED);

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

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

Il precedente esempio visualizzerĂ  qualcosa simile a:

Output of example : imagesetbrush()

add a note add a note

User Contributed Notes 1 note

up
-1
brent at ebrent dot net
18 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.
To Top