Question

google地图区域颜色的改变 var map = new google.maps.Map(document.getElementById("map_canvas"), myOpt

google地图区域颜色的改变
var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);

Map_63_EGY_Egypt = new google.maps.Polygon({paths: Array_63_EGY_Egypt, strokeColor: "#FF0000", strokeOpacity: 0.8, strokeWeight: 1, fillColor: "#0000FF", fillOpacity: 0.15});

Map_63_EGY_Egypt.setMap(map);
这里显示了一个区域，并将区域设置颜色设置为#0000FF,有没有什么方法，类似于
Map_63_EGY_Egypt.setFillColor("red"),这样的方法，来改变这个区域的背景颜色？

谢谢

Answer 1

由于google已经正式推出V3版本替代了原来的V2，所以就以V3来回答你的问题。

可以用overlayView来实现，如：
NameOverlay.prototype = new google.maps.OverlayView(); // 扩展OverlayView

function initialize() {
var mapCenter = new google.maps.LatLng(39.917, 116.397);
var mapOptions = {
zoom: 14,
center: mapCenter,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
var map = new google.maps.Map(document.getElementById("map_canvas"), mapOptions);
// 显示地图

var marker1LatLng = new google.maps.LatLng(39.927, 116.387);
var marker1 = new google.maps.Marker({
position: marker1LatLng, map: map, title:"北海"
});

// 定义一个NameOverlay，显示在指定位置
var name1View = new NameOverlay(marker1LatLng, "北海", map);

var marker2LatLng = new google.maps.LatLng(39.937, 116.387);
var marker2 = new google.maps.Marker({
position: marker2LatLng, map: map, title:"北师大"
});

var name2View = new NameOverlay(marker2LatLng, "北师大", map);

}

// NameOverlay定义
function NameOverlay(point, name, map) {

// 初始化参数：坐标、文字、地图
this.point_ = point;
this.name_ = name;
this.map_ = map;

// 到onAdd时才需要创建div
this.div_ = null;

// 加入map
this.setMap(map);
}

NameOverlay.prototype.onAdd = function() {

// 创建一个div，其中包含了当前文字
var div = document.createElement('DIV');
div.style.borderStyle = "none";
div.style.borderWidth = "0px";
div.style.position = "absolute";

var span = document.createElement("span");
var text = document.createTextNode(this.name_);
span.appendChild(text);
div.appendChild(span);

// Set the overlay's div_ property to this DIV
this.div_ = div;

// We add an overlay to a map via one of the map's panes.
// We'll add this overlay to the overlayImage pane.
var panes = this.getPanes();
panes.overlayImage.appendChild(div);
}

NameOverlay.prototype.draw = function() {

// 利用projection获得当前视图的坐标
var overlayProjection = this.getProjection();

var center = overlayProjection.fromLatLngToDivPixel(this.point_);

// 为简单，长宽是固定的，实际应该根据文字改变
var div = this.div_;
div.style.left = center.x + 'px';
div.style.top = center.y + 'px';
div.style.width = '100px';
div.style.height = '10px';
}

NameOverlay.prototype.onRemove = function() {
this.div_.parentNode.removeChild(this.div_);
this.div_ = null;
}