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imagefilledpolygon() is a built-in PHP function for drawing filled polygons.
bool imagefilledpolygon($image, $points, $num_points, $color)
imagefilledpolygon()Takes four different parameters - $image, $ points, $ num_points and $color.
$Image - Use the imagecreatetruecolor() function to create a blank image of the given dimensions.
$points - Saves consecutive vertices of a polygon.
$num_points - Contains the total number of vertices in the polygon. The total number of points/vertices must be at least three to create a polygon.
$color - Contains color identifiers populated using the imagecolorallocate() function.
Returns True on success and False on failure.
<?php // set up array of points for a polygon $values = array( 40, 50, // Point 1 (x, y) 20, 240, // Point 2 (x, y) 60, 60, // Point 3 (x, y) 240, 20, // Point 4 (x, y) 50, 40, // Point 5 (x, y) 10, 10 // Point 6 (x, y) ); // create the image using imagecreatetruecolor function $img = imagecreatetruecolor(700, 350); // allocated the blue and gray colors $bg = imagecolorallocate($img, 122, 122, 122); $blue = imagecolorallocate($img, 0, 0, 255); // filled the background imagefilledrectangle($img, 0, 0, 350, 350, $bg); // draw a polygon imagefilledpolygon($img, $values, 6, $blue); // flush image header('Content-type: image/png'); imagepng($img); imagedestroy($img); ?>
<?php // Set the vertices of the polygon $values = array( 150, 50, // Point 1 (x, y) 55, 119, // Point 2 (x, y) 91, 231, // Point 3 (x, y) 209, 231, // Point 4 (x, y) 245, 119 // Point 5 (x, y) ); // It creates the size of the image or blank image. $img = imagecreatetruecolor(700, 350); // Set the gray background image color $bg = imagecolorallocate($img, 122, 122, 122); // Set the red image color $red = imagecolorallocate($img, 255, 0, 0); // fill the background imagefilledrectangle($img, 0, 0, 350, 350, $bg); // Draw the polygon image imagefilledpolygon($img, $values, 5, $red); // Output of the image. header('Content-type: image/png'); imagepng($img); imagedestroy($img); ?>
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