kmlLayer导致焦点更改(google map api v3)

问题描述

我正在将NOAA雷达信息分层放置在焦点为8的地图上.页面加载后，地图最初以8渲染，然后立即重新绘制自身以显示整个区域.

I'm layering NOAA radar information over a map with a focus of 8. When the page loads, the map initially renders at 8, then immediately redraws itself to show an entire region.

我正在使用的KML文件包含用于绘制雷达图像的最小/最大纬度/经度坐标(本例中为美国东南部地区).如果我更改这些坐标以覆盖较小的区域，则可以按照我的意愿调整Google地图的大小，但会根据KML文件裁剪雷达活动.如果用户缩小或滚动到默认地图区域之外，这将是一个问题.

The KML file I'm using contains min/max lat/long coordinates which are used to draw the radar image (in this case over the southeast US area). If I change those coordinates to cover a smaller area, the google map is resized like I want, but radar activity is clipped per the KML file. This is a problem if users zoom out or scroll outside of the default map area.

示例地图: http://georgiaoffroad.com/map2.html

示例KML文件: http://georgiaoffroad.com/includes/southeastradar.kml

是否有办法使雷达图像保持较大，但将地图聚焦在可用雷达图像的较小区域上，以便用户可以缩放或滚动查看周围地区的天气?

Is there a way to keep the radar image large, but focus the map on a smaller area of the available radar image so users could zoom or scroll around to see weather for surrounding areas?

推荐答案

将图层的选项preserveViewport设置为true:

set the option preserveViewport of the layer to true:

new google.maps
     .KmlLayer({url:'http://georgiaoffroad.com/includes/southeastradar.kml',
                preserveViewport:true});

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