PHP: Draw a filled polygon

Description

bool imagefilledpolygon ( resource $image , array $points , int $num_points , int $color )

imagefilledpolygon() creates a filled polygon in the given image .

Parameters

image: An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
points: An array containing the x and y coordinates of the polygons vertices consecutively
num_points: Total number of vertices, which must be bigger than 3
color: A color identifier created with imagecolorallocate()

Return Values

Returns TRUE on success or FALSE on failure.

Examples

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);



// some colors

$bg   = imagecolorallocate($image, 200, 200, 200);

$blue = imagecolorallocate($image, 0, 0, 255);



// draw a polygon

imagefilledpolygon($image, $values, 6, $blue);



// flush image

header('Content-type: image/png');

imagepng($image);

imagedestroy($image);

?>

The above example will output something similar to: