// Copyright (c) 2016-2016 The Regents of the University of California.
// All rights reserved.
//
// Permission is hereby granted, without written agreement and without
// license or royalty fees, to use, copy, modify, and distribute this
// software and its documentation for any purpose, provided that the above
// copyright notice and the following two paragraphs appear in all copies
// of this software.
//
// IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
// FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
// ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
// THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE.
//
// THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
// PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
// CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
// ENHANCEMENTS, OR MODIFICATIONS.
//
/** This accessor takes two 3D locations and calculate the euclidean distance between them.
*
*
* @accessor geodesy/Lla2Ecef
* @author Eloi T. Pereira (eloi@berkeley.edu)
* @version $$Id$$
* @input {double} x1 x-coordinate of the first location
* @input {double} y1 y-coordinate of the first location
* @input {double} z1 z-coordinate of the first location
* @input {double} x2 x-coordinate of the second location
* @input {double} y2 y-coordinate of the second location
* @input {double} z2 z-coordinate of the second location
* @output {double} dist distance
*
*/
// Stop extra messages from jslint and jshint. Note that there should
// be no space between the / and the * and global. See
// https://chess.eecs.berkeley.edu/ptexternal/wiki/Main/JSHint */
/*globals addInputHandler, get, error, exports, extend, get, input, output, parameter, require, send */
/*jshint globalstrict: true*/
'use strict';
/** Set up the accessor by defining the inputs and outputs.
*/
exports.setup = function () {
this.input('x1');
this.input('y1');
this.input('z1');
this.input('x2');
this.input('y2');
this.input('z2');
this.output('dist');
};
exports.initialize = function () {
this.addInputHandler(function () {
var x1 = this.get('x1');
var x2 = this.get('x2');
var y1 = this.get('y1');
var y2 = this.get('y2');
var z1 = this.get('z1');
var z2 = this.get('z2');
this.send('dist', Math.sqrt(Math.pow(x1 - x2, 2) + Math.pow(y1 - y2, 2) + Math.pow(z1 - z2, 2)));
});
};