天地图－－根据关键字本地搜索

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<meta name="keywords" content="天地图"/>
<title>天地图－地图API－范例－根据关键字本地搜索</title>
<style type="text/css">
.search {
font-size: 13px;
border: 1px solid #999999;
}

.ls {
line-height: 27px;
padding-left: 7px;
}

.prompt {
display: none;
font-size: 13px;
border: 1px solid #999999;
}

.statistics {
display: none;
font-size: 13px;
border: 1px solid #999999;
overflow-y: scroll;
height: 150px;
}

.suggests {
display: none;
font-size: 13px;
border: 1px solid #999999;
}

;
.lineData {
display: none;
font-size: 13px;
border: 1px solid #999999;
}

.result {
display: none;
font-size: 12px;
border: 1px solid #999999;
line-height: 27px;
padding-left: 7px;
}
</style>
<script type="text/javascript" src="http://api.tianditu.gov.cn/api?v=4.0"></script>
<style type="text/css">body,html{width:100%;height:100%;margin:0;font-family:"Microsoft YaHei"}#mapDiv{width:100%;height:400px}input,b,p{margin-left:5px;font-size:14px}</style>
<script>
var map;
var zoom = 12;
var localsearch;
function onLoad() {
//初始化地图对象
map = new T.Map("mapDiv");
//设置显示地图的中心点和级别
map.centerAndZoom(new T.LngLat(116.40969, 39.89945), zoom);

var config = {
pageCapacity: 10, //每页显示的数量
onSearchComplete: localSearchResult //接收数据的回调函数
};
//创建搜索对象
localsearch = new T.LocalSearch(map, config);
}

function localSearchResult(result) {
//清空地图及搜索列表
clearAll();

//添加提示词
prompt(result);

//根据返回类型解析搜索结果
switch (parseInt(result.getResultType())) {
case 1:
//解析点数据结果
pois(result.getPois());
break;
case 2:
//解析推荐城市
statistics(result.getStatistics());
break;
case 3:
//解析行政区划边界
area(result.getArea());
break;
case 4:
//解析建议词信息
suggests(result.getSuggests());
break;
case 5:
//解析公交信息
lineData(result.getLineData());
break;
}
}

//解析提示词
function prompt(obj) {
var prompts = obj.getPrompt();
if (prompts) {
var promptHtml = "";
for (var i = 0; i < prompts.length; i++) {
var prompt = prompts[i];
var promptType = prompt.type;
var promptAdmins = prompt.admins;
var meanprompt = prompt.DidYouMean;
if (promptType == 1) {
promptHtml += "<p>您是否要在" + promptAdmins[0].name + "</strong>搜索更多包含<strong>" + obj.getKeyword() + "</strong>的相关内容？<p>";
}
else if (promptType == 2) {
promptHtml += "<p>在<strong>" + promptAdmins[0].name + "</strong>没有搜索到与<strong>" + obj.getKeyword() + "</strong>相关的结果。<p>";
if (meanprompt) {
promptHtml += "<p>您是否要找：<font weight='bold' color='#035fbe'><strong>" + meanprompt + "</strong></font><p>";
}
}
else if (promptType == 3) {
promptHtml += "<p style='margin-bottom:3px;'>有以下相关结果，您是否要找：</p>"
for (i = 0; i < promptAdmins.length; i++) {
promptHtml += "<p>" + promptAdmins[i].name + "</p>";
}
}
}
if (promptHtml != "") {
document.getElementById("promptDiv").style.display = "block";
document.getElementById("promptDiv").innerHTML = promptHtml;
}
}
}

//解析点数据结果
function pois(obj) {
if (obj) {
//显示搜索列表
var divMarker = document.createElement("div");
//坐标数组，设置最佳比例尺时会用到
var zoomArr = [];
for (var i = 0; i < obj.length; i++) {
//闭包
(function (i) {
//名称
var name = obj[i].name;
//地址
var address = obj[i].address;
//坐标
var lnglatArr = obj[i].lonlat.split(" ");
var lnglat = new T.LngLat(lnglatArr[0], lnglatArr[1]);

var winHtml = "名称:" + name + "<br/>地址:" + address;

//创建标注对象
var marker = new T.Marker(lnglat);
//地图上添加标注点
map.addOverLay(marker);
//注册标注点的点击事件
var markerInfoWin = new T.InfoWindow(winHtml, {autoPan: true});
marker.addEventListener("click", function () {
marker.openInfoWindow(markerInfoWin);
});

zoomArr.push(lnglat);

//在页面上显示搜索的列表
var a = document.createElement("a");
a.href = "javascript://";
a.innerHTML = name;
a.onclick = function () {
showPosition(marker, winHtml);
}
divMarker.appendChild(document.createTextNode((i + 1) + "."));
divMarker.appendChild(a);
divMarker.appendChild(document.createElement("br"));
})(i);
}
//显示地图的最佳级别
map.setViewport(zoomArr);
//显示搜索结果
divMarker.appendChild(document.createTextNode('共' + localsearch.getCountNumber() + '条记录，分' + localsearch.getCountPage() + '页,当前第' + localsearch.getPageIndex() + '页'));
document.getElementById("searchDiv").appendChild(divMarker);
document.getElementById("resultDiv").style.display = "block";
}
}

//显示信息框
function showPosition(marker, winHtml) {
var markerInfoWin = new T.InfoWindow(winHtml, {autoPan: true});
marker.openInfoWindow(markerInfoWin);
}

//解析推荐城市
function statistics(obj) {
if (obj) {
//坐标数组，设置最佳比例尺时会用到
var pointsArr = [];
var priorityCitysHtml = "";
var allAdminsHtml = "";
var priorityCitys = obj.priorityCitys;
if (priorityCitys) {
//推荐城市显示
priorityCitysHtml += "在中国以下城市有结果<ul>";
for (var i = 0; i < priorityCitys.length; i++) {
priorityCitysHtml += "<li>" + priorityCitys[i].name + "(" + priorityCitys[i].count + ")</li>";
}
priorityCitysHtml += "</ul>";
}

var allAdmins = obj.allAdmins;
if (allAdmins) {
allAdminsHtml += "更多城市<ul>";
for (var i = 0; i < allAdmins.length; i++) {
allAdminsHtml += "<li>" + allAdmins[i].name + "(" + allAdmins[i].count + ")";
var childAdmins = allAdmins[i].childAdmins;
if (childAdmins) {
for (var m = 0; m < childAdmins.length; m++) {
allAdminsHtml += "<blockquote>" + childAdmins[m].name + "(" + childAdmins[m].count + ")</blockquote>";
}
}
allAdminsHtml += "</li>"
}
allAdminsHtml += "</ul>";
}
document.getElementById("statisticsDiv").style.display = "block";
document.getElementById("statisticsDiv").innerHTML = priorityCitysHtml + allAdminsHtml;
}
}

//解析行政区划边界
function area(obj) {
if (obj) {
//坐标数组，设置最佳比例尺时会用到
var pointsArr = [];
var points = obj.points;
for (var i = 0; i < points.length; i++) {
var regionLngLats = [];
var regionArr = points[i].region.split(",");
for (var m = 0; m < regionArr.length; m++) {
var lnglatArr = regionArr[m].split(" ");
var lnglat = new T.LngLat(lnglatArr[0], lnglatArr[1]);
regionLngLats.push(lnglat);
pointsArr.push(lnglat);
}
//创建线对象
var line = new T.Polyline(regionLngLats, {
color: "blue",
weight: 3,
opacity: 1,
lineStyle: "dashed"
});
//向地图上添加线
map.addOverLay(line);
}
//显示最佳比例尺
map.setViewport(pointsArr);
}
}

//解析建议词信息
function suggests(obj) {
if (obj) {
//建议词提示，如果搜索类型为公交规划建议词或公交站搜索时，返回结果为公交信息的建议词。
var suggestsHtml = "建议词提示<ul>";
for (var i = 0; i < obj.length; i++) {
suggestsHtml += "<li>" + obj[i].name + "  <font style='color:#666666'>" + obj[i].address + "</font></li>";
}
suggestsHtml += "</ul>";
document.getElementById("suggestsDiv").style.display = "block";
document.getElementById("suggestsDiv").innerHTML = suggestsHtml;
}
}

//解析公交信息
function lineData(obj) {
if (obj) {
//公交提示
var lineDataHtml = "公交提示<ul>";
for (var i = 0; i < obj.length; i++) {
lineDataHtml += "<li>" + obj[i].name + "  <font style='color:#666666'>共" + obj[i].stationNum + "站</font></li>";
}
lineDataHtml += "</ul>";
document.getElementById("lineDataDiv").style.display = "block";
document.getElementById("lineDataDiv").innerHTML = lineDataHtml;
}
}

//清空地图及搜索列表
function clearAll() {
map.clearOverLays();
document.getElementById("searchDiv").innerHTML = "";
document.getElementById("resultDiv").style.display = "none";
document.getElementById("statisticsDiv").innerHTML = "";
document.getElementById("statisticsDiv").style.display = "none";
document.getElementById("promptDiv").innerHTML = "";
document.getElementById("promptDiv").style.display = "none";
document.getElementById("suggestsDiv").innerHTML = "";
document.getElementById("suggestsDiv").style.display = "none";
document.getElementById("lineDataDiv").innerHTML = "";
document.getElementById("lineDataDiv").style.display = "none";
}
</script>
</head>
<body onLoad="onLoad()">
<div id="mapDiv"></div>
<div>
<p>本示例演示如何根据关键字本地搜索。</p>
<input type="text" id="keyWord" value="*"/>
<input type="button" onClick="localsearch.search(document.getElementById('keyWord').value)" value="搜索"/>
<br/>

<div id="promptDiv" class="prompt"></div>

<div id="statisticsDiv" class="statistics"></div>

<div id="suggestsDiv" class="suggests"></div>

<div id="lineDataDiv" class="lineData"></div>

<div id="resultDiv" class="result">
<div id="searchDiv"></div>
<div id="pageDiv">
<input type="button" value="第一页" onClick="localsearch.firstPage()"/>
<input type="button" value="上一页" onClick="localsearch.previousPage()"/>
<input type="button" value="下一页" onClick="localsearch.nextPage()"/>
<input type="button" value="最后一页" onClick="localsearch.lastPage()"/>
<br/>
转到第<input type="text" value="1" id="pageId" size="3"/>页
<input type="button" onClick="localsearch.gotoPage(parseInt(document.getElementById('pageId').value));"
value="转到"/>
</div>
</div>
</div>
</body>
</html>

天地图－－根据关键字本地搜索

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