Php/docs/function.imageopenpolygon
imageopenpolygon
(PHP 7 >= 7.2.0)
imageopenpolygon — Draws an open polygon
Description
imageopenpolygon
( resource $image
, array $points
, int $num_points
, int $color
) : bool
imageopenpolygon() draws an open polygon on the given
image. Contrary to imagepolygon(),
no line is drawn between the last and the first point.
Parameters
imageAn image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
pointsAn array containing the polygon's vertices, e.g.:
points[0] = x0 points[1] = y0 points[2] = x1 points[3] = y1 num_pointsTotal number of points (vertices), which must be at least 3.
colorA color identifier created with imagecolorallocate().
Return Values
Returns TRUE on success or FALSE on failure.
Examples
Example #1 imageopenpolygon() example
<?php// Create a blank image$image = imagecreatetruecolor(400, 300);// Allocate a color for the polygon$col_poly = imagecolorallocate($image, 255, 255, 255);// Draw the polygonimageopenpolygon($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:
