Labels

php (35) javascript (31) phpjavascript (30) jquery (23) html (20) mysql (14) database (9) codeigniter (4) json (4) bar chart (2) calendar (2) column chart (2) framework (2) google maps (2) query (2) tables (2) url (2) dropdown (1)

Tuesday, April 17, 2018

Generating path between start and end points through way points using google map API

In this article we explaining about how to dynamically generate a path between multiple points(start, end and way points) by using google map direction API.

Here is the simplest way of doing it, we explain it step by step.

CSS

<style>
      #right-panel {
        font-family: 'Roboto','sans-serif';
        line-height: 30px;
        padding-left: 10px;
      }

      #right-panel select, #right-panel input {
        font-size: 15px;
      }

      #right-panel select {
        width: 100%;
      }

      #right-panel i {
        font-size: 12px;
      }
      html, body {
        height: 100%;
        margin: 0;
        padding: 0;
      }
      #map {
        height: 100%;
        float: left;
        width: 70%;
        height: 100%;
      }
      #right-panel {
        margin: 20px;
        border-width: 2px;
        width: 20%;
        height: 400px;
        float: left;
        text-align: left;
        padding-top: 0;
      }
      #directions-panel {
        margin-top: 10px;
        background-color: #23b0ff;
        padding: 10px;
        overflow: scroll;
        height: 174px;
      }
    </style>

Script

<script>
      function initMap() {
        var directionsService = new google.maps.DirectionsService;
        var directionsDisplay = new google.maps.DirectionsRenderer;
        var map = new google.maps.Map(document.getElementById('map'), {
          zoom: 6,
          center: {lat: 41.85, lng: -87.65}
        });
        directionsDisplay.setMap(map);

        document.getElementById('submit').addEventListener('click', function() {
          calculateAndDisplayRoute(directionsService, directionsDisplay);
        });
      }

      function calculateAndDisplayRoute(directionsService, directionsDisplay) {
        var waypts = [];
        var checkboxArray = document.getElementById('waypoints');
        for (var i = 0; i < checkboxArray.length; i++) {
          if (checkboxArray.options[i].selected) {
            waypts.push({
              location: checkboxArray[i].value,
              stopover: true
            });
          }
        }

        directionsService.route({
          origin: document.getElementById('start').value,
          destination: document.getElementById('end').value,
          waypoints: waypts,
          optimizeWaypoints: true,
          travelMode: 'DRIVING'
        }, function(response, status) {
          if (status === 'OK') {
            directionsDisplay.setDirections(response);
            var route = response.routes[0];
            var summaryPanel = document.getElementById('directions-panel');
            summaryPanel.innerHTML = '';
            // For each route, display summary information.
            for (var i = 0; i < route.legs.length; i++) {
              var routeSegment = i + 1;
              summaryPanel.innerHTML += '<b>Route Segment: ' + routeSegment +
                  '</b><br>';
              summaryPanel.innerHTML += route.legs[i].start_address + ' to ';
              summaryPanel.innerHTML += route.legs[i].end_address + '<br>';
              summaryPanel.innerHTML += route.legs[i].distance.text + '<br><br>';
            }
          } else {
            window.alert('Directions request failed due to ' + status);
          }
        });
      }
    </script>
API
    <script async defer
    src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap">
    </script>

Here is the procedure to create new API key
Body
<div id="map"></div>
<a href ='http://www.phpjavascript.com/2018/02/how-to-add-google-map-to-website-using.html'>MAP</a>
    <div id="right-panel">

    <div>

    <b>Start:</b>

    <select id="start">

      <option value="Hyderabad">Hyderabad</option>

      <option value="Banglore">Banglore</option>

      <option value="Delhi">Delhi</option>

      <option value="Pune">Pune</option>

    </select>

    <br>

    <b>Waypoints:</b> <br>

    <i>(Ctrl+Click or Cmd+Click for multiple selection)</i> <br>

    <select multiple id="waypoints">

      <option value="Delhi">Delhi</option>

      <option value="Banglore">Banglore</option>

      <option value="Chenai">Chenai</option>

      <option value="Hyderabad">Hyderabad</option>

      <option value="Tripura">Tripura</option>

      <option value="Varanasi">Varanasi</option>

    </select>

    <br>

    <b>End:</b>

    <select id="end">

      <option value="Chenai">Chenai</option>

      <option value="Kolkata">Kolkata</option>

      <option value="Mumbai">Mumbai</option>

      <option value="Rajasthan">Rajasthan</option>

    </select>

    <br>

      <input type="submit" id="submit">

    </div>

    <div id="directions-panel"></div>

    </div>

Result


1 comment:

More Posts

FOLLOW