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(PHP 3, PHP 4, PHP 5)

imagepolygon -- Draw a polygon

Description

bool imagepolygon ( resource image, array points, int num_points, int color )

imagepolygon() creates a polygon in image id. points is a PHP array containing the polygon's vertices, i.e. points[0] = x0, points[1] = y0, points[2] = x1, points[3] = y1, etc. num_points is the total number of points (vertices).

Example 1. imagepolygon() example

<?php
// create a blank image
$image = imagecreate(400, 300);

// fill the background color
$bg = imagecolorallocate($image, 0, 0, 0);

// choose a color for the polygon
$col_poly = imagecolorallocate($image, 255, 255, 255);

// draw the polygon
imagepolygon($image, 
             array (
                    0, 0,
                    100, 200,
                    300, 200
             ),
             3,
             $col_poly);

// output the picture
header("Content-type: image/png");
imagepng($image);

?>

Related Function(s)

imagecreate()

imagecreatetruecolor()