imagefilledpolygon
(PHP 4, PHP 5)
imagefilledpolygon — Draw a filled polygon
Descrizione
bool imagefilledpolygon
( resource
$image
, array $points
, int $num_points
, int $color
)
imagefilledpolygon() creates a filled polygon
in the given image.
Elenco dei parametri
-
image -
Una risorsa immagine, restituita da una delle funzioni di creazione immagine, come imagecreatetruecolor().
-
points -
An array containing the x and y coordinates of the polygons vertices consecutively.
-
num_points -
Total number of vertices, which must be at least 3.
-
color -
A color identifier created with imagecolorallocate().
Valori restituiti
Restituisce TRUE in caso di successo, FALSE in caso di fallimento.
Esempi
Example #1 imagefilledpolygon() example
<?php
// set up array of points for polygon
$values = array(
40, 50, // Point 1 (x, y)
20, 240, // Point 2 (x, y)
60, 60, // Point 3 (x, y)
240, 20, // Point 4 (x, y)
50, 40, // Point 5 (x, y)
10, 10 // Point 6 (x, y)
);
// create image
$image = imagecreatetruecolor(250, 250);
// allocate colors
$bg = imagecolorallocate($image, 0, 0, 0);
$blue = imagecolorallocate($image, 0, 0, 255);
// fill the background
imagefilledrectangle($image, 0, 0, 249, 249, $bg);
// draw a polygon
imagefilledpolygon($image, $values, 6, $blue);
// flush image
header('Content-type: image/png');
imagepng($image);
imagedestroy($image);
?>
Il precedente esempio visualizzerà qualcosa simile a:
