Php/docs/function.imagepolygon

• PHP Manual
• GD and Image Functions
• Draws a polygon

imagepolygon

(PHP 4, PHP 5, PHP 7)

imagepolygon — Draws a polygon

Description

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

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), which must be at least 3.

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$image = imagecreatetruecolor(400, 300);// Allocate a color for the polygon$col_poly = imagecolorallocate($image, 255, 255, 255);// Draw the polygonimagepolygon($image, array(        0,   0,        100, 200,        300, 200    ),    3,    $col_poly);// Output the picture to the browserheader('Content-type: image/png');imagepng($image);imagedestroy($image);?>

The above example will output something similar to:

See Also

• imagefilledpolygon() - Draw a filled polygon
• imageopenpolygon() - Draws an open polygon
• imagecreate() - Create a new palette based image
• imagecreatetruecolor() - Create a new true color image