(PHP 4, PHP 5, PHP 7)
Draws a polygon
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, e.g.:
| points[0] | = x0 |
| points[1] | = y0 |
| points[2] | = x1 |
| points[3] | = y1 |
num_points
Total number of points (vertices).
color
A color identifier created with imagecolorallocate().
Returns:
Returns TRUE on success or FALSE on failure.
Examples:
imagepolygon() example
<?php
// Create a blank image
$image = imagecreatetruecolor(400, 300);
// Allocate 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,
$col_poly);
// Output the picture to the browser
header('Content-type: image/png');
imagepng($image);
imagedestroy($image);
?>
The above example will output something similar to:
See also:
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