javascript - kml 文件中来自多边形的 LatLngBounds？

Question

我是 google map 和 API 的新手，试图通过点击将 map 平移到某个区域。我没有时间在 API 引用中找到我需要的东西，也不确定如何去做，所以我没有太多东西，但这是我目前所拥有的。

我想让它点击任何区域都会平移并放大以显示该区域的大部分，我相信这就是 panToBounds是为了做。

大部分功能将来自点击文本名称并让 map 加载显示正确的位置，而不是点击 map 本身

function initialize_neighbourhoodmap(neighbourhood_name) {
    var latlng = new google.maps.LatLng(42.949442,-81.228125);

    var zoom = 11;
    var neighbourhood_center = get_neighbourhood_center();

    var myOptions = {
      zoom: zoom,
      center: latlng,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    };

    map = new google.maps.Map(document.getElementById("neighbourhood_map"),
        myOptions);

    var neighbourhoods = new google.maps.KmlLayer('http://maps.google.com/maps/ms?authuser=0&ie=UTF8&hl=en&oe=UTF8&vps=3&msa=0&output=kml&msid=217366496682144933685.0004bf3be50d3cd7ad1c2', {suppressInfoWindows: true, preserveViewport:true});
    neighbourhoods.setMap(map);

    google.maps.event.addListener(neighbourhoods, 'click', function(KmlFeatureData) {
        var neighbourhood_name = KmlFeatureData.featureData.name;
    load_neighbourhood(neighbourhood_name, neighbourhoods);
    window.location = "#neighbourhood-neighbourhood "+neighbourhood_name;
    });

    if(typeof neighbourhood_name !== 'undefined'){
        load_neighbourhood(neighbourhood_name, neighbourhood_center);
    }
}

function load_neighbourhood (neighbourhood_name, neighbourhoods) {
    var neighbourhoodbounds = nonexistentgetboundsfunction(neighbourhood_name);
    map.panToBounds(neighbourhood_center[neighbourhood_name][0]);
    $('#neighbourhood h2').html('neighbourhood '+neighbourhood_name);
}

Answer 1

您确定需要其他功能吗？在我看来，用户界面变得很尴尬。嗯，这里是:http://jsfiddle.net/g343k/3/

我遇到了一个奇怪的“错误”，或者有些人可能称之为“特征”，它与 KML 多边形相关联。单击某个区域时， map 会平移到该区域的中心；但是，当单击外部 planning_district 区域时， map 会平移到框的中心，而不是单击所在的位置(Sean Mickey 在 FireFox 12 中进行了测试，它平移到单击)。除了将规划区分割为几十个更小的盒子之外，我想不出解决这个问题的办法:(现在我已经编写了代码来忽略对规划区的点击。

google.maps.event.addListener(neighbourhoods, 'click', function(KmlFeatureData) {
        var neighbourhood_name = KmlFeatureData.featureData.name;
    load_neighbourhood(neighbourhood_name, neighbourhoods);
    window.location = "#neighbourhood-neighbourhood "+neighbourhood_name;
    // ADDED
    // Consider what to do when this outer area is clicked
    if(KmlFeatureData.featureData.name!="planning_districts_2008") {
      map.panTo(KmlFeatureData.latLng);
    }

    });

    // LEFT OUT
    //if(typeof neighbourhood_name !== 'undefined'){
    //    load_neighbourhood(neighbourhood_name, neighbourhood_center);
    //}

    // ADDED
    google.maps.event.addListener(map, 'click', function(event) {
      map.panTo(event.latLng);
    });