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imagepolygon

(PHP 3, PHP 4, PHP 5)

imagepolygon -- Draws a polygon

Description

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

imagepolygon() creates a 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 polygon's vertices, i.e. points[0] = x0, points[1] = y0, points[2] = x1, points[3] = y1, etc.

num_points

Total number of points (vertices)

color

A color identifier created with imagecolorallocate()

Return Values

Returns TRUE on success or FALSE on failure.

Examples

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);

?>

The above example will output something similar to:

See Also

imagecreate()
imagecreatetruecolor()

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