缩小时，Google地图不显示我的折线

Question

As it seems to me, google made some changes to the way their google maps API displays Polylines. 在我看来，谷歌对其Google Maps API显示折线的方式进行了一些更改。 Up until last time I checked (3 months ago) Polylines would always be visible at all zoom-levels. 直到上次我检查（3个月前）时，折线在所有缩放级别都始终可见。 When fully zoomed out, the polyline would just be a small dot on he map. 完全缩小后，折线将只是地图上的一个小点。

Now, using the same code (basically just the example code offered by google) when I zoom out, the polyline will disappear. 现在，缩小时使用相同的代码（基本上只是google提供的示例代码），折线将消失。 This only happens, in case the waypoints of the polyline a very close together. 仅在折线的航路点非常靠近的情况下才会发生这种情况。

Example: A Polyline confined to some streets in a small town will not be visible, when zoom out completly. 示例：完全缩小时，将看不到局限于小镇某些街道的折线。 A Polyline which connects to points with a distance of 1000 miles will always be visible. 连接到距离为1000英里的点的折线始终可见。

How can I get the short Polyline to be displayed at all zoom-levels, even if it will just be a small dot? 我怎么能在所有缩放级别上显示短的折线，即使它只是一个小点？

Example here: 这里的例子：

https://plnkr.co/edit/v7FksNUxlpm1f6ag0iQs?p=preview https://plnkr.co/edit/v7FksNUxlpm1f6ag0iQs?p=preview

just zoom out, at some point the polyline will disappear, which I do not want. 只是缩小，在某些时候折线会消失，这是我不想要的。

<!DOCTYPE html>
<html>
  <head>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no">    
    <meta charset="utf-8">
    <title>Simple Polylines</title>
    <style>
      html, body {
        height: 100%;
        margin: 0;
        padding: 0;
      }
      #map {
        height: 100%;
      }
    </style>
  </head>
  <body>
<div id="map"></div>
<script>


function initMap() {
  var map = new google.maps.Map(document.getElementById('map'), {
    zoom: 18,
    center: {lat: 37.772, lng: -122.214},
    mapTypeId: google.maps.MapTypeId.TERRAIN
  });

  var flightPlanCoordinates = [
{lat: 37.772, lng: -122.214},
{lat: 37.771, lng: -122.215},
{lat: 37.770, lng: -122.216},
{lat: 37.760, lng: -122.218}
  ];
  var flightPath = new google.maps.Polyline({
    path: flightPlanCoordinates,
    geodesic: true,
    strokeColor: '#FF0000',
    strokeOpacity: 1.0,
    strokeWeight: 40
  });

  flightPath.setMap(map);
}

</script>
<script async defer
    src="https://maps.googleapis.com/maps/api/js?callback=initMap"></script> 
  </body>
</html>

Answer 1

Call zoomIn or zoomOut on another thread loop. 在另一个线程循环上调用zoomIn或zoomOut。 (ex. setTimeout(event) （例如setTimeout（event）

缩小时，Google地图不显示我的折线

问题描述

1 个解决方案

解决方案1
0 2018-12-21 09:20:26

缩小时，Google地图不显示我的折线

问题描述

1 个解决方案

解决方案1 0 2018-12-21 09:20:26

解决方案1
0 2018-12-21 09:20:26