百度地图常用功能开发JS1.4版

var map;

//初始化map

function initMap()

{

// 创建Map实例

map = new BMap.Map("allmap");

// 创建点坐标

var point = new BMap.Point(116.404, 39.915);

// 初始化地图,设置中心点坐标和地图级别。

map.centerAndZoom(point,12);

//启用滚轮放大缩小

map.enableScrollWheelZoom();

//添加地图操作控件

map.addControl(new BMap.NavigationControl());

//添加地图比例尺控件

map.addControl(new BMap.ScaleControl({anchor: BMAP_ANCHOR_BOTTOM_LEFT}));

//添加鹰眼图控件

map.addControl(new BMap.OverviewMapControl());

//添加地图类型控件

map.addControl(new BMap.MapTypeControl());

}

//定位到某个点

//x=116.4035

//y=39.915

function zoomToPoint()

{

//定位

var x = document.getElementById("xText").value;

var y = document.getElementById("yText").value;

var point = new BMap.Point(x,y);

map.centerAndZoom(point,15);

//添加标注

var marker = new BMap.Marker(point);

map.addOverlay(marker);

}

//放大2级

var myDrag;

function zoomIn()

{

map.setZoom(map.getZoom() + 2);

// myDrag = new BMapLib.RectangleZoom(map, {

// followText: "拖拽鼠标进行操作"

// });

// myDrag.open(); //开启拉框放大

}

//缩小2级

function zoomOut()

{

map.setZoom(map.getZoom() - 2);

}

//测距离

var myDis;

function getDistance()

{

//myDrag.close();

myDis = new BMapLib.DistanceTool(map);

myDis.open();

//myDis.close();

}

//定位用户所在城市

function getUserCity()

{

var myCity = new BMap.LocalCity();

myCity.get(function(result){

var cityName = result.name;

map.setCenter(cityName);

});

}

//添加标注

function addMarker()

{

map.addEventListener("click", addMarkerEvent);

}

function addMarkerEvent(e)

{

var marker = new BMap.Marker(new BMap.Point(e.point.lng, e.point.lat));

map.addOverlay(marker);

marker.enableDragging();

var infoWindow1 = new BMap.InfoWindow("河南东软科技有限公司");

marker.addEventListener("click", function(){this.openInfoWindow(infoWindow1);});

map.removeEventListener("click", addMarkerEvent);

}

//添加行政区划

function addBoundary()

{

var bdary = new BMap.Boundary();

bdary.get("新乡", function(rs){ //获取行政区域

map.clearOverlays(); //清除地图覆盖物

var count = rs.boundaries.length; //行政区域的点有多少个

for(var i = 0; i < count; i++){

var ply = new BMap.Polygon(rs.boundaries[i], {strokeWeight: 3, strokeColor: "#ff0000"}); //建立多边形覆盖物

map.addOverlay(ply); //添加覆盖物

map.setViewport(ply.getPath()); //调整视野

}

});

}

//添加文本标注

function addText()

{

map.addEventListener("click", addTextEvent);

}

function addTextEvent(e)

{

var opts = {

position : new BMap.Point(e.point.lng, e.point.lat), // 指定文本标注所在的地理位置

offset : new BMap.Size(10, -10) //设置文本偏移量

}

var label = new BMap.Label("您好，河南东软科技为您服务！", opts); // 创建文本标注对象

label.setStyle({

color : "red",

fontSize : "12px",

height : "20px",

lineHeight : "20px",

fontFamily:"微软雅黑"

});

map.addOverlay(label);

map.removeEventListener("click", addTextEvent);

}

//可视范围内搜索

function search()

{

var text = document.getElementById("searchText").value;

var local = new BMap.LocalSearch(map, {

renderOptions:{map: map}

});

local.searchInBounds(text, map.getBounds());

map.addEventListener("dragend",function(){

map.clearOverlays();

local.searchInBounds(text, map.getBounds());

});

}

//清空地图覆盖物

function clearMap()

{

map.clearOverlays();

}

//获取坐标点

function getXY()

{

map.addEventListener("click", getXYEvent);

}

function getXYEvent(e)

{

document.getElementById("xyText").value = e.point.lng+","+e.point.lat;

map.removeEventListener("click", getXYEvent);

}

//公交查询

function busSearch()

{

var startPoint = document.getElementById("startBusText").value;

var endPoint = document.getElementById("endBusText").value;

var transit = new BMap.TransitRoute(map, {

renderOptions: {map: map, panel: "searchResult"}

});

transit.search(startPoint, endPoint);

}

//驾车查询

function carSearch()

{

var startPoint = document.getElementById("startCarText").value;

var endPoint = document.getElementById("endCarText").value;

var options = {

//显示路线说明

onSearchComplete: function(results){

if (driving.getStatus() == BMAP_STATUS_SUCCESS)

{

// 获取第一条方案

var plan = results.getPlan(0);

// 获取方案的驾车线路

var route = plan.getRoute(0);

// 获取每个关键步骤,并输出到页面

var s = [];

for (var i = 0; i < route.getNumSteps(); i ++){

var step = route.getStep(i);

s.push((i + 1) + ". " + step.getDescription());

}

document.getElementById("searchResult").innerHTML = s.join("<br/>");

}

},

//显示地图

renderOptions:{map: map, autoViewport: true}

};

var driving = new BMap.DrivingRoute(map, options);

driving.search(startPoint, endPoint);

}