Question

我目前正在使用Javascript Google Maps V3 API创建自定义地图。

我知道如何添加标记，但目前我需要做一些更“复杂”的事情。我现在需要帮助才能找到一种方法来绘制地图，我想要的街道上的线条。

你知道怎么做或有参考吗？

Answer 1

以下是一个很好的起点和参考供您进一步研究，这使用谷歌折线在地图上绘制线条为此示例，用户选择地图上的点和一条线构建...请不要你会必须使用有效的密钥才能使用此示例...希望这有助于运气

＆＃13;

      // This example creates an interactive map which constructs a polyline based on
      // user clicks. Note that the polyline only appears once its path property
      // contains two LatLng coordinates.

      var poly;
      var map;

      function initMap() {
        map = new google.maps.Map(document.getElementById('map'), {
          zoom: 7,
          center: {lat: 41.879, lng: -87.624}  // Center the map on Chicago, USA.
        });

        poly = new google.maps.Polyline({
          strokeColor: '#000000',
          strokeOpacity: 1.0,
          strokeWeight: 3
        });
        poly.setMap(map);

        // Add a listener for the click event
        map.addListener('click', addLatLng);
      }

      // Handles click events on a map, and adds a new point to the Polyline.
      function addLatLng(event) {
        var path = poly.getPath();

        // Because path is an MVCArray, we can simply append a new coordinate
        // and it will automatically appear.
        path.push(event.latLng);

        // Add a new marker at the new plotted point on the polyline.
        var marker = new google.maps.Marker({
          position: event.latLng,
          title: '#' + path.getLength(),
          map: map
        });
      }

＆＃13;

      /* Always set the map height explicitly to define the size of the div
       * element that contains the map. */
      #map {
        height: 100%;
      }
      /* Optional: Makes the sample page fill the window. */
      html, body {
        height: 100%;
        margin: 0;
        padding: 0;
      }

＆＃13;

<!DOCTYPE html>
<html>
  <head>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
    <meta charset="utf-8">
    <title>Complex Polylines</title>

  </head>
  <body>
    <div id="map"></div>

    <script async defer
    src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap">
    </script>
  </body>
</html>

＆＃13;

Javascript - Google Maps API V3使用街道名称在街道上绘制线条

1 个答案: