root/g-map/files/lib/util/BoundsUtil.class.php @ 763

<?php

/**
 * gets several positions and builds the bounding box
 *
 * @package     de.gmap.wcf.util
 * @author      Michael Senkler, Torben Brodt
 * @license     GNU General Public License <http://opensource.org/licenses/gpl-3.0.html>
 */
class BoundsUtil {
        public $left, $right, $bottom, $top;

        /**
         * Constructor
         */
        public function __construct() {
                $this->left = -180;
                $this->right = 180;
                $this->bottom = -180;
                $this->top = 180;
        }

        /**
         * adds Position to group
         * @param lat -> latitude
         * @param lng -> longitude
         */
        public function add($lat, $lng) {
                $lat = floatval($lat);
                $lng = floatval($lng);

                if($this->left == -180 || $lat < $this->left) {
                        $this->left = $lat;
                }
                if($this->right == 180 || $lat > $this->right) {
                        $this->right = $lat;
                }
                if($this->bottom == -180 || $lng < $this->bottom) {
                        $this->bottom = $lng;
                }
                if($this->top == 180 || $lng > $this->top) {
                        $this->top = $lng;
                }
        }

        /*
         * Overwrites the toString method
         */
        public function __toString() {
                return implode(",",array($this->left,$this->top,$this->right,$this->bottom));
        }
}
?>