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# imagepolygon

(PHP 3, PHP 4 , PHP 5)

imagepolygon -- Draw a polygon

## Description

int 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).

示範 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); ?>`

See also imagecreate() and imagecreatetruecolor().

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