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imagepolygon (PHP 3, PHP 4, PHP 5) imagepolygon -- Draws a polygon Descrizionebool imagepolygon ( resource image, array points, int num_points, int color )
imagepolygon() creates a polygon in the given
image.
Elenco dei parametri
-
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()
Valori restituiti
Restituisce TRUE in caso di successo, FALSE in caso di fallimento.
Esempi
Esempio 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);
?>
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