Marker Follows Path

Sample Implementation

    
      
      <html>
        <head>
          <title>Marker Follows Path</title>
          <meta name="viewport" content="initial-scale=1.0">
          <meta charset="utf-8">
          <style>
          html,
          body,
          #map {
            margin: 0;
            padding: 0;
            width: 100%;
            height: 100vh;
          }
          </style>
             <script src="https://apis.mappls.com/advancedmaps/api/<Token>/map_sdk?layer=vector&v=3.0&callback=initMap1" defer async></script>
            </head>
        <body>
                    <div id="map"></div>
                        <script>
        var marker, map, polyline;
        var path = [{ lat: 28.55186943239279, lng: 77.26765259393522 }];

        function initMap1() {
            map = new mappls.Map("map", {
                center: [28.553033295685296, 77.26818903573576],
                zoom: 16,
                zoomControl: true,
                clickableIcons: false,
                disableDoubleClickZoom: true,
            });
            map.on("load", function () {
                marker = new mappls.Marker({
                    map: map,
                    width: 60,
                    height: 60,
                    html: '<img id="m1" src="https://www.mapmyindia.com/api/advanced-maps/doc/sample/map_sdk/car.png" style="width:20px; margin-left:0px;" />',
                    offset: [20, 5],
                    position: {
                        lat: 28.55186943239279,
                        lng: 77.26765259393522,
                    },
                    fitbounds: false,
                });
                marker["id"] = "m1"; //icon id store in marker object (Important)


                map.addListener("click", function (e) {
                    path.push({
                        lat: e.lngLat.lat,
                        lng: e.lngLat.lng,
                    });

                    if (path.length < 3) {
                        polyline = new mappls.Polyline({
                            map: map,
                            paths: path,
                            strokeColor: '#333',
                            strokeOpacity: 1.0,
                            strokeWeight: 3,
                            fitbounds: true
                        });
                    } else {
                        polyline.extend({ lat: e.lngLat.lat, lng: e.lngLat.lng });
                    }


                    smoothNavigate(
                        marker,
                        {
                            lat: e.lngLat.lat,
                            lng: e.lngLat.lng,
                        },
                        5
                    );
                });
            });
        }

        // Set position Smoothly
        function smoothNavigate(obj, setPos, no) {
            if (no != undefined && no) {
                var coordinates = [];
                var prv = obj.getPosition();
                var next = setPos;
                var dis = getDistanceFromLatLonInKm(
                    prv.lat,
                    prv.lng,
                    next.lat,
                    next.lng
                ); // find distancr
                var hed = angleFromCoordinate(prv.lat, prv.lng, next.lat, next.lng);
                var n = Math.round(dis) / no; // the number of coordinates you want
                for (var i = n - 1; i > 0; i--) {
                    coordinates.push({
                        lat: (prv.lat * i) / n + (next.lat * (n - i)) / n,
                        lng: (prv.lng * i) / n + (next.lng * (n - i)) / n,
                    });
                    if (Math.ceil(i) == 1) {
                        coordinates.push(next);
                    }
                }
                setTimeout(() => {
                    for (var i = 0; i < coordinates.length; i++) {
                        function invoke(x) {
                            setTimeout(() => {
                                obj.setPosition(coordinates[x]);
                                document.getElementById(obj.id).style.transform =
                                    "rotate(" + hed + "deg)";
                            }, 10 * x + 1);
                        }
                        invoke(i);
                    }
                }, 100);
            } else {
                obj.setPosition(setPos);
            }
        }

        // Find Heading of map using Two latlng
        function angleFromCoordinate(lat1, lon1, lat2, lon2) {
            var p1 = {
                x: lat1,
                y: lon1,
            };
            var p2 = {
                x: lat2,
                y: lon2,
            };
            // angle in radians
            var angleRadians = Math.atan2(p2.y - p1.y, p2.x - p1.x);
            // angle in degrees
            var angleDeg = (Math.atan2(p2.y - p1.y, p2.x - p1.x) * 180) / Math.PI;
            return angleDeg;
        }

        // calculate Distance between 2 point
        function getDistanceFromLatLonInKm(lat1, lon1, lat2, lon2) {
            var R = 6371; // Radius of the earth in km
            var dLat = deg2rad(lat2 - lat1); // deg2rad below
            var dLon = deg2rad(lon2 - lon1);
            var a =
                Math.sin(dLat / 2) * Math.sin(dLat / 2) +
                Math.cos(deg2rad(lat1)) *
                Math.cos(deg2rad(lat2)) *
                Math.sin(dLon / 2) *
                Math.sin(dLon / 2);
            var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
            var d = R * c; // Distance in km
            return d * 1000;
        }

        function deg2rad(deg) {
            return deg * (Math.PI / 180);
        }
    </script>
            </body>
      </html>
      
      
      /* First install : npm install mappls-web-maps */

      import { Component, OnInit, ElementRef } from '@angular/core';
      import { mappls } from 'mappls-web-maps';
      @Component({
      selector: 'app-root',
      template: '<div  id="map"  style="width: 99%; height: 99vh; background-color: white;"></div>',
      styleUrls: ['./app.component.css']
      })
      export class AppComponent implements OnInit {
          mapObject: any;
          mapplsClassObject = new mappls();
                  title = 'Animated Marker';
        mapProps = {
        center: [28.61, 77.23],
        zoomControl: true,
        location: true
        }
        ngOnInit() {

        this.mapplsClassObject.map({ id: "map", key: "<Token>", properties: this.mapProps }, (data: any) => {
            this.mapObject = data;

            new mappls().Marker({
            map: this.mapObject,
            position: {
            "lat": 28.519467,
            "lng": 77.223150
            },
            fitbounds: true,
            icon_url: 'https://apis.mapmyindia.com/map_v3/1.png'
            });
            });
            }
                  }
      
      
      /* First install : npm install mappls-web-maps */
      
      import { mappls } from  'mappls-web-maps';
      import  './App.css';
      function  App() {
      const  styleMap  = {width:  '99%', height:  '99vh', display:'inline-block'}
      var mapObject ;
      var mapplsClassObject=  new  mappls();
          const title = "Animated Marker"
    const mapProps = { center: [28.61, 77.23]}
    mapplsClassObject.map({ id: "map", key: "<Token>", properties: mapProps }, (data) => {
        mapObject = data;
        mapObject.addListener('load', () => {
        mapplsClassObject.Marker({
        map: mapObject,
        position: {
        "lat": 28.519467,
        "lng": 77.223150
        },
        fitbounds: true,
        icon_url: 'https://apis.mapmyindia.com/map_v3/1.png'
        });
        });
        });
              return (
         <div  id="map"  style={styleMap}></div>
         );
      }
      export  default  App;
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