google map 基础函数使用备忘
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Google Maps JavaScript API v3 Example: Image MapTypes</title>
<link href="mapfiles/css/default.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="jsconf/mapapi.js"></script>
<script type="text/javascript" src="jsconf/jquery.min.js"></script>
<script>
var markersArray = [];
var arrInfoWindows = [];
function CoordMapType(tileSize) {
this.tileSize = tileSize;
}
CoordMapType.prototype.getTile = function(coord, zoom, ownerDocument) {
var div = ownerDocument.createElement('DIV');
var ymax = 1 << zoom;
var y = ymax - coord.y - 1;
div.innerHTML = coord.x + "," + y + "," + zoom;
div.style.width = this.tileSize.width + 'px';
div.style.height = this.tileSize.height + 'px';
div.style.fontSize = '10';
div.style.borderStyle = 'solid';
div.style.borderWidth = '1px';
div.style.borderColor = '#AAAAAA';
return div;
};
function LocalMapType() {}
LocalMapType.prototype.tileSize = new google.maps.Size(256, 256);
LocalMapType.prototype.maxZoom = 10;
LocalMapType.prototype.minZoom = 6;
LocalMapType.prototype.name = "本地";
LocalMapType.prototype.alt = "显示本地地图";
LocalMapType.prototype.getTile = function(coord, zoom, ownerDocument) {
var img = ownerDocument.createElement("img");
img.style.width = this.tileSize.width + "px";
img.style.height = this.tileSize.height + "px";
var ymax = 1 << zoom;
var y = ymax - coord.y - 1;
var strURL = "tilemap\" + zoom + "\" + coord.x + "\" + y + ".png";
img.src = strURL;
return img;
};
var localMapType = new LocalMapType();
var map;
function initialize() {
var myLatlng = new google.maps.LatLng(34.611, 108.935);
var myOptions = {
center: myLatlng,
zoom: 6,
streetViewControl: false,
scaleControl: true,
mapTypeControl: false,
mapTypeControlOptions: {
mapTypeIds: ["local", google.maps.MapTypeId.ROADMAP]
}
};
map = new google.maps.Map(document.getElementById("map_canvas"),
myOptions);
//map.setMapTypeId('satellite');
//map.MapTypes.insertAt(0, moonMapType);
map.mapTypes.set('local', localMapType);
map.setMapTypeId('local');
map.overlayMapTypes.insertAt(0, new CoordMapType(new
google.maps.Size(256, 256)));
//添加事件监听
google.maps.event.addListener(map, 'click', function(event) {
clearMarkersBefore();
placeMarker(event.latLng);
});
//map.disableDoubleClickZoom();
//map.enableContinuousZoom();
var myLatlng1 = new google.maps.LatLng(33.001, 109.005);
map.panTo(myLatlng1 ) ;//移动
//map.panDirection(1, 0) ;//动画移动
new CustomMarker( myLatlng1 , map);
//标准放置标记方法
var beachMarker = new google.maps.Marker({
position: myLatlng ,
map: map,
title:"上海市普陀区兰溪路137号曹杨商城4-5楼",
icon: 'images/1.png'
});
//批量添加标记,也是循环..效率问题???
setMarkers(map, locations,'images/1.png');
}
function CustomMarker(latlng,map) {
this.latlng_ = latlng;
this.setMap(map);
}
//扩展自OverlayView；OverlayView扩展自MVCObject，实际上也扩展自
MVCObject
CustomMarker.prototype = new google.maps.OverlayView();
CustomMarker.prototype.draw = function() {
var me = this;
var div = this.div_;
if (!div) {
div = this.div_ = document.createElement('DIV');
div.style.position = "absolute";
div.innerHTML = "<span><img src='images/1.png'/></span>";
//这个div的对象需要Listener事件，必须先用trigger（me）先进行侦听
google.maps.event.addDomListener(div, "click", function(event) {
google.maps.event.trigger(me, "click");
});
var panes = this.getPanes();
panes.overlayImage.appendChild(div);
}
CustomMarker.prototype.remove = function() {
if (this.div_) {
this.div_.parentNode.removeChild(this.div_);
this.div_ = null;
}
};
//获取Position
CustomMarker.prototype.getPosition = function() {
return this.latlng_;
};
}
//放置marker
function placeMarker(location) {
var clickedLocation = new google.maps.LatLng(location);
var marker = new google.maps.Marker({
position: location,
map: map
});
markersArray.push(marker);
//这里根据用户操作，将经纬度取出来，并复制到input中。
$("#geo-lat").val(marker.getPosition().lat());
$("#geo-lng").val(marker.getPosition().lng());
};
//清除marker，这个函数需要使用，不然你的鼠标点击之处，都有标记，而你只需要一个
。
function clearMarkersBefore() {
if (markersArray) {
for (i in markersArray) {
markersArray[i].setMap(null);
}
markersArray.length = 0;
}
};
var locations = [
['上海市普陀区兰溪路137号曹杨商城4-5楼', 31.239311, 121.405159, 4],
['大兴街18号华联吉买盛内', 31.21354,121.488482, 5],
['陕西北路1622号2-3楼', 31.245205,121.439846, 14]
];
//多个标记批量添加
function setMarkers(map, locations,image) {
for (var i = 0; i < locations.length; i++) {
var beach = locations[i];
var myLatLng = new google.maps.LatLng(beach[1], beach[2]);
var marker = new google.maps.Marker({
position: myLatLng,
map: map,
icon: image,
title: beach[0],
zIndex: beach[3]
});
}
}
$(function(){
//初始化地图
initialize();
});
</script>
</head>
<body >
<div id="map_canvas" style="width: 640px; height: 480px;"></div>
</br>获取经纬度
<input id="geo-lat" type="text"name="latitude" value=""/>
<input id="geo-lng" type="text"name="longitude" value=""/>
</body>
</html>
