将GOOGLE MAP API 和 GOOGLE Search API 进行整合,我用面向对象的方式写了一个类,通过传一个经纬度进去,自动通过GOOGLE LOCAL SEARCH获取附近的相关信息。比如餐厅、景点等,反过来标到地图上,并可在任意容器内显示。
下面是源码:
JavaScript复制代码
- /*
- *Author:karry
- *Version:1.0
- *Time:2008-12-01
- *KMapSearch 类
- *把GOOGLE MAP 和LocalSearch结合。只需要传入MAP\经纬度值,就可以把该经纬度附近的相关本地搜索内容取出来,在地图上标注出来,并可以在指定容器显示搜索结果
- */
- (function() {
- var markers= new Array();
- var KMapSearch=window.KMapSearch= function(map_, opts_) {
- this.opts = {
- container:opts_.container || "divSearchResult",
- keyWord:opts_.keyWord || "餐厅",
- latlng: opts_.latlng || new GLatLng(31, 121),
- autoClear:opts_.autoClear || true,
- icon:opts_.icon || new GIcon(G_DEFAULT_ICON)
- };
- this.map = map_;
- this.gLocalSearch = new google.search.LocalSearch();
- this.gLocalSearch.setCenterPoint(this.opts.latlng);
- this.gLocalSearch.setResultSetSize(GSearch.LARGE_RESULTSET);
- this.gLocalSearch.setSearchCompleteCallback(this, function() {
- if (this.gLocalSearch.results) {
- var savedResults = document.getElementById(this.opts.container);
- if (this.opts.autoClear) {
- savedResults.innerHTML = "";
- }
- for (var i = 0; i < this.gLocalSearch.results.length; i++) {
- savedResults.appendChild(this.getResult(this.gLocalSearch.results[i]));
- }
- }
- });
- }
- KMapSearch.prototype.getResult = function(result) {
- var container = document.createElement("div");
- container.className = "list";
- var myRadom =(new Date()).getTime().toString()+Math.floor(Math.random()*10000);
- container.id=myRadom;
- container.innerHTML = result.title + "<br />地址:" + result.streetAddress;
- this.createMarker(new GLatLng(result.lat, result.lng), result.html,myRadom);
- return container;
- }
- KMapSearch.prototype.createMarker = function(latLng, content)
- {
- var marker = new GMarker(latLng, {icon:this.opts.icon,title:this.opts.title});
- GEvent.addListener(marker, "click", function() {
- marker.openInfoWindowHtml(content);
- });
- markers.push(marker);
- map.addOverlay(marker);
- }
- KMapSearch.prototype.clearAll = function() {
- for (var i = 0; i < markers.length; i++) {
- this.map.removeOverlay(markers[i]);
- }
- markers.length = 0;
- }
- KMapSearch.prototype.execute = function(latLng) {
- if (latLng) {
- this.gLocalSearch.setCenterPoint(latLng);
- }
- this.gLocalSearch.execute(this.opts.keyWord);
- }
- })();
JavaScript复制代码
- var myIcon = new GIcon(G_DEFAULT_ICON);
- myIcon.image = "canting.png";
- myIcon.iconSize = new GSize(16, 20);
- myIcon.iconAnchor = new GPoint(8, 20);
- myIcon.shadow = "";
- var mapSearch = new KMapSearch(map, {container:"cantingContainer",latlng:initPt,icon:myIcon,keyWord:"餐厅"});
- mapSearch.clearAll();
- mapSearch.execute();
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