<?php
/**
 * Geo Information Tools: Point
 *
 * @author gERD Schaufelberger <gerd@php-tools.de>
 * @package WB
 * @subpackage geo
 */

WBClass::load('WBGeo');

/**
 * Geo Information Tools: Point
 *
 * @todo alpha
 * @version 0.1.0
 * @package WB
 * @subpackage geo
 */
class WBGeo_Point extends WBStdClass
{
    private $latitude   =   0;
    private $longitude  =   0;
    private $height     =   0;

    /**
     * Constructor
     *
     * Parameter
     *  - lat
     *  - lon
     *  - height
     *  - isdeg
     *
     * @param array
     */
    public function __construct($parameter = array())
    {
        $parameter  =   array_merge(
            array(
                'lat'       =>  0,
                'lon'       =>  0,
                'height'    =>  0,
                'isdeg'     =>  1
            ), $parameter);

        if (0 < $parameter['isdeg']) {
            $parameter['lat']   =   WBGeo::deg2rad($parameter['lat']);
            $parameter['lon']   =   WBGeo::deg2rad($parameter['lon']);
        }

        $this->latitude     =   $parameter['lat'];
        $this->longitude    =   $parameter['lon'];
        $this->height       =   $parameter['height'];
    }

    /**
     * Get Latitude
     *
     * @param bool convert to deg
     * @return floa
     */
    public function getLatitude($deg = true)
    {
        if ($deg) {
            return WBGeo::rad2deg($this->latitude);
        }
        return $this->latitude;
    }

    /**
     * Get Longitude
     *
     * @param bool convert to deg
     * @return floa
     */
    public function getLongitude($deg = true)
    {
        if ($deg) {
            return WBGeo::rad2deg($this->longitude);
        }
        return $this->longitude;
    }

    /**
     * Get Height
     *
     * @return floa
     */
    public function getHeight()
    {
        return $this->height;
    }

    /**
     * Is Point Empty?
     *
     * Check if Coordinates are zero.
     * @return bool
     */
    public function isEmpty()
    {
        if (0 == $this->latitude && 0 == $this->longitude) {
            return true;
        }
        return false;
    }
}