PHP Manual
Prev |  | Next

# imagepolygon

(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 = imagecreatetruecolor(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);
?>`

See also imagecreate() and imagecreatetruecolor().

Prev | Home | Next
imagepng | Up | imagepsbbox