如何使整个折线在google地图上可见

<script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY"></script>

<div id="map"></div>

function initMap() {
  var map = new google.maps.Map(document.getElementById('map'), {
    center: {lat: YOUR_LATITUDE, lng: YOUR_LONGITUDE},
    zoom: YOUR_ZOOM_LEVEL
  });
}

function initMap() {
  var map = new google.maps.Map(document.getElementById('map'), {
    center: {lat: YOUR_LATITUDE, lng: YOUR_LONGITUDE},
    zoom: YOUR_ZOOM_LEVEL
  });

  var lineCoordinates = [
    {lat: LATITUDE_1, lng: LONGITUDE_1},
    {lat: LATITUDE_2, lng: LONGITUDE_2},
    // 添加更多坐标点...
  ];

  var line = new google.maps.Polyline({
    path: lineCoordinates,
    geodesic: true,
    strokeColor: '#FF0000',
    strokeOpacity: 1.0,
    strokeWeight: 2
  });

  line.setMap(map);
}

function initMap() {
  var map = new google.maps.Map(document.getElementById('map'), {
    center: {lat: YOUR_LATITUDE, lng: YOUR_LONGITUDE},
    zoom: YOUR_ZOOM_LEVEL
  });

  var lineCoordinates = [
    {lat: LATITUDE_1, lng: LONGITUDE_1},
    {lat: LATITUDE_2, lng: LONGITUDE_2},
    // 添加更多坐标点...
  ];

  var line = new google.maps.Polyline({
    path: lineCoordinates,
    geodesic: true,
    strokeColor: '#FF0000',
    strokeOpacity: 1.0,
    strokeWeight: 2
  });

  line.setMap(map);

  var bounds = new google.maps.LatLngBounds();
  for (var i = 0; i < lineCoordinates.length; i++) {
    bounds.extend(lineCoordinates[i]);
  }
  map.fitBounds(bounds);
}