PHP: imagefilledpolygon

imagefilledpolygon

(PHP 3, PHP 4, PHP 5)

imagefilledpolygon -- Draw a filled polygon

Description

bool imagefilledpolygon ( resource image, array points, int num_points, int color )

imagefilledpolygon() creates a filled polygon in image image.

points is an array containing the x and y co-ordinates of the polygons vertices consecutively.

The parameter num_points is the total number of vertices, which must be larger than 3.

Пример 1. imagefilledpolygon() example

<?php // set up array of points for 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 image $image = imagecreatetruecolor(250, 250); // some colors $bg = imagecolorallocate($image, 200, 200, 200); $blue = imagecolorallocate($image, 0, 0, 255); // draw a polygon imagefilledpolygon($image, $values, 6, $blue); // flush image header('Content-type: image/png'); imagepng($image); imagedestroy($image); ?>

imagefilledpolygon

etnekor at tar dot hu
22-Jan-2006 01:18


There is a simple function to draw a filled point with a chosen radius and color.



<?php

function drawPoint($img, $radius, $origo_x, $origo_y, $pointColor)

{

  for ($i=0;$i<=360;$i++)

  {

    $pont[] = $origo_x + ($radius * sin(deg2rad($i)));

    $pont[] = $origo_y - ($radius * cos(deg2rad($i)));

  }

  reset($pont);

  ImageFilledPolygon ($img, $pont, (sizeof($pont)/2), $pointColor);

}

?>