如何使用JavaScript在地图中显示两个制造商之间的路线

问题描述

在创建具有多个纬度和经度的路线图时遇到了问题，我尝试了很多方法来创建路线图，但是我仅获得标记位置，它不是地图上两个标记之间的显示路线.我需要在地图上的两个标记之间进行路由，以实现多个纬度和经度，我已经在下面尝试的代码中发布了

I have facing problem while creating route map with multiple Latitude and Longitude, I tried lot of ways for creating route map but I am getting marker places only,it is not display route between two markers on map.I need to route between two markers on map for multiple Latitude and Longitude,I have posted below code which i tried ,

var MapPoints ='[{"address":{"lat":"23.7012517"，"lng":"86.0591489"}，"title":"Dalmia Cement，JHARKHAND"}，{"address":{"lat:" 24.5246，" lng:" 84.2845}，" title:" NAVIN CEMENT STORE}，{" address:{" lat:" 24.2493788，" lng:" 83.9261005}， "title":"SAKSHI TRADERS"}]'';

var MapPoints = '[{"address":{"lat":"23.7012517","lng":"86.0591489"},"title":"Dalmia Cement,JHARKHAND"},{"address":{"lat":"24.5246","lng":"84.2845"},"title":"NAVIN CEMENT STORE"},{"address":{"lat":"24.2493788","lng":"83.9261005"},"title":"SAKSHI TRADERS"}]';

      var directionsDisplay;
      var directionsService = new google.maps.DirectionsService();
      var map;

      function initialize() {
          var pointA = new google.maps.LatLng(23.7012517, 86.0591489);
        if (jQuery('#map').length > 0) {
            map = new google.maps.Map(document.getElementById('map'), {
                 zoom: 15,
                center: pointA,
                mapTypeId: google.maps.MapTypeId.ROADMAP,
                scrollwheel: false 
              });

            directionsDisplay = new google.maps.DirectionsRenderer({
                map: map,
                suppressMarkers: true
              });
          var locations = jQuery.parseJSON(MapPoints);


          directionsDisplay.setMap(map);

          var infowindow = new google.maps.InfoWindow();
          var shippingCoordinates = [];
          var bounds = new google.maps.LatLngBounds();

          for (i = 0; i < locations.length; i++) {
            marker = new google.maps.Marker({
              position: new google.maps.LatLng(locations[i].address.lat, locations[i].address.lng),
              map: map
            });
            shippingCoordinates.push(marker.getPosition());
            bounds.extend(marker.position);

            google.maps.event.addListener(marker, 'click', (function(marker, i) {
              return function() {
                infowindow.setContent(locations[i]['title']);
                infowindow.open(map, marker);
              }
            })(marker, i));
          }

          map.fitBounds(bounds);

          // directions service configuration
          var start = shippingCoordinates[0];
          var end = shippingCoordinates[shippingCoordinates.length - 1];
          var waypts = [];
          for (var i = 1; i < shippingCoordinates.length - 1; i++) {
            waypts.push({
              location: shippingCoordinates[i],
              stopover: true
            });
          }
          finalRootMap(start, end, waypts);
        }
      }

      function finalRootMap(start, end, waypts) { 
        var request = {
          origin: start,
          destination: end,
          waypoints: waypts,
          optimizeWaypoints: true,
          travelMode: google.maps.TravelMode.DRIVING
        };
        directionsService.route(request, function(response, status) {
          if (status == google.maps.DirectionsStatus.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>';
            }
          }
        });
      }
      google.maps.event.addDomListener(window, 'load', initialize);

推荐答案

使用Directions Waypoints

参考 https://developers.google.com/maps/文档/javascript/examples/directions-waypoints

var waypts = [];

for (i = 0; i < locations.length; i++) {    
     waypts.push({
        location: new google.maps.LatLng(locations[i].address.lat, locations[i].address.lng),
        stopover: true
     });
}

directionsService.route({
  origin: new google.maps.LatLng(locations[0].address.lat, locations[0].address.lng),
  destination: new google.maps.LatLng(locations[locations.length - 1].address.lat, locations[locations.length - 1].address.lng),
  waypoints: waypts,
  optimizeWaypoints: true,
  travelMode: 'DRIVING'
}, function(response, status) {
  if (status === 'OK') {
    directionsDisplay.setDirections(response);
    var route = response.routes[0];
  } else {
    window.alert('Directions request failed due to ' + status);
  }
});

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