Click here to Skip to main content
Rate this: bad
good
Please Sign up or sign in to vote.
hii ..
i have latitude and longitude of source and destination..now how to find direction among them..
 
i already tried with following function ,which shows the direction by address ...
 
function calcRoute() {
 
       var start = document.getElementById('startvalue').value;
       var end = document.getElementById('endvalue').value;
       var request = {
           origin: start,
           destination: end,
           travelMode: google.maps.DirectionsTravelMode.DRIVING
       };
       directionsService.route(request, function (response, status) {
           if (status == google.maps.DirectionsStatus.OK) {
               directionsDisplay.setDirections(response);
           }
       });
 
   }
 

 

but i want to find direction by latitude and longitude of that source and destination..please suggest me some modification in this function...
 
thank u...
Posted 23-Apr-13 8:23am
Rate this: bad
good
Please Sign up or sign in to vote.

Solution 1

The Vincenty's formulae will help you. Please start from here: http://en.wikipedia.org/wiki/Vincenty%27s_formulae[^].
 
—SA
  Permalink  
Rate this: bad
good
Please Sign up or sign in to vote.

Solution 2

Actually the Great Circle formulas will give a good approximation, you don't need to use the Vincenty formula unless you are doing extremely precise stuff (need directions in decimal degrees over great distances).
  Permalink  
Comments
Ron Beyer at 23-Apr-13 23:54pm
   
http://www.movable-type.co.uk/scripts/latlong.html
 
Scroll down and there are script examples, they are in Java but easy to convert.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

  Print Answers RSS
0 OriginalGriff 304
1 Sergey Alexandrovich Kryukov 255
2 Shweta N Mishra 216
3 Maciej Los 210
4 PIEBALDconsult 174
0 OriginalGriff 7,660
1 Sergey Alexandrovich Kryukov 7,072
2 DamithSL 5,586
3 Manas Bhardwaj 4,946
4 Maciej Los 4,665


Advertise | Privacy | Mobile
Web04 | 2.8.1411023.1 | Last Updated 23 Apr 2013
Copyright © CodeProject, 1999-2014
All Rights Reserved. Terms of Service
Layout: fixed | fluid

CodeProject, 503-250 Ferrand Drive Toronto Ontario, M3C 3G8 Canada +1 416-849-8900 x 100