规划驾车路线和途径点及判断车辆路线偏移

2020-02-24 18:48:34

参考地址 规划驾车路线和途径点及判断车辆路线偏移

仅供参考,我还是推荐用矩形判断,嘿嘿。

star: 项目需求需要利用百度地图构建路线并支持设置途径点,以及可以实时监控车辆是否偏移路线;两种方案。


写了比较完整的注释了,替换ak可直接看效果,规划驾车路线和途径点及判断车辆路线偏移 源码:


方法一:


<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />

<style type="text/css">

body,

html,

#allmap {

width: 100%;

height: 100%;

overflow: hidden;

margin: 0;

font-family: "微软雅黑";

}

</style>

<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=你的百度AK"></script>

<title>规划驾车路线和途径点及判断车辆位置偏移</title>

</head>

<body>

<div id="allmap"></div>

</body>

</html>

<script type="text/javascript" src="../js/jquery-1.8.3.js"></script>

<!-- 判断点在线范围内 -->

<script type="text/javascript" src="../js/GeoUtils.js"></script>

<script type="text/javascript">

// 百度地图API功能

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

map.centerAndZoom(new BMap.Point(116.404, 39.915), 13);

map.addControl(new BMap.NavigationControl()); // 添加平移缩放控件

map.addControl(new BMap.ScaleControl()); // 添加比例尺控件

map.addControl(new BMap.OverviewMapControl()); //添加缩略地图控件

map.enableScrollWheelZoom(true);

 

//起点-终点

var startSpot = new BMap.Point(116.434913, 39.851941);

var endSpot = new BMap.Point(116.528038, 39.789194);

 

//途径点

var waypointsList = new Array();

waypointsList.push(new BMap.Point(116.456172, 39.833542));

// waypointsList.push(new BMap.Point(116.501384, 39.832991));

// waypointsList.push(new BMap.Point(116.53353, 39.802379));

 

// 车辆动态坐标点

var dynamicZb = new BMap.Point(116.382997,39.791302);

 

//清除地图上所有的覆盖物

// map.clearOverlays();

//创建驾车实例

var driving = new BMap.DrivingRoute(map);

// 判断有无途径点

if (waypointsList.length > 0) {

//第一个驾车搜索(开始路段)

driving.search(startSpot, waypointsList[0]);

// 途径点路段

for (var i = 0; i < waypointsList.length - 1; i++) {

driving.search(waypointsList[i], waypointsList[i + 1]);

}

//第二个驾车搜索(终止路段)

driving.search(waypointsList[waypointsList.length - 1], endSpot);

} else {

driving.search(startSpot, endSpot);

}

 

//通过驾车实例,获得一系列点的数组

var zbList = new Array();

// 多路段坐标临时变量

var zbLinshi;

/**

* 路段数统计(与途径点(数组长度+1) 拿到完整坐标点数)

* 如:1,2,3,4 起点终点:1/4   途径点:2/3  需绘画3次路段

*/

var routeCount = 0;

driving.setSearchCompleteCallback(function() {

routeCount++;

console.log("路段数:" + routeCount);

 

var pts = driving.getResults().getPlan(0).getRoute(0).getPath();

//通过驾车实例,获得一系列点的数组       

var polyline = new BMap.Polyline(pts);

zbLinshi = polyline.getPath();

 

console.log("多路段坐标点数:" + zbLinshi.length);

// 将多个路段坐标点放入集合

for (var i = 0; i < zbLinshi.length; i++) {

// zbList.push("new BMap.Point("+zbLinshi[i].lng);

// zbList.push(zbLinshi[i].lat+")");

            zbList.push(zbLinshi[i]);

// console.log(zbLinshi[i]);

}

 

 

map.addOverlay(polyline);

//创建marker 

var m1 = new BMap.Marker(startSpot);

var m2 = new BMap.Marker(endSpot);

map.addOverlay(m1);

map.addOverlay(m2);

if (waypointsList.length > 0) {

for (var i = 0; i < waypointsList.length; i++) {

map.addOverlay(new BMap.Marker(waypointsList[i]));

}

}

 

//创建个label    

var lab1 = new BMap.Label("起点", {

position: startSpot

});

var lab2 = new BMap.Label("终点", {

position: endSpot

});

map.addOverlay(lab1);

map.addOverlay(lab2);

if (waypointsList.length > 0) {

for (var i = 0; i < waypointsList.length; i++) {

map.addOverlay(new BMap.Label("途径点" + (i + 1), {

position: waypointsList[i]

}));

}

}

 

// setTimeout(function() {

var viewPorts = new Array();

viewPorts.push(startSpot);

if (waypointsList.length > 0) {

for (var i = 0; i < waypointsList.length; i++) {

viewPorts.push(waypointsList[i]);

}

}

viewPorts.push(endSpot);

map.setViewport(viewPorts);

 

//调整到最佳视野        

// }, 1000);

});

 

 

 

 

/*  实时监测返回状态

BMAP_STATUS_SUCCESS 检索成功。对应数值“0”

BMAP_STATUS_CITY_LIST 城市列表。对应数值“1”

BMAP_STATUS_UNKNOWN_LOCATION 位置结果未知。对应数值“2”

BMAP_STATUS_UNKNOWN_ROUTE 导航结果未知。对应数值“3”

BMAP_STATUS_INVALID_KEY 非法密钥。对应数值“4”

BMAP_STATUS_INVALID_REQUEST 非法请求。对应数值“5”

BMAP_STATUS_PERMISSION_DENIED 没有权限。对应数值“6”

BMAP_STATUS_SERVICE_UNAVAILABLE 服务不可用。对应数值“7”

BMAP_STATUS_TIMEOUT 超时。对应数值“8” */

var checkgetStatus = setInterval(function() {

if (driving.getStatus() == 0 && waypointsList.length + 1 == routeCount) {

// 返回成功终止检测

clearInterval(checkgetStatus);

console.log("---保存坐标数组----:" + zbList);

//判断路线偏移

CheckRouteDeviation(dynamicZb, zbList, 200);

}

}, 1000);

 

/*

  (判断路线偏移)点是否在线上(通过以每个坐标点为圆心,自定以半径范围;检测某个坐标点是否在圆中)

  dynamicZb:要判断的坐标;zbList:线路坐标数组;radius:半径范围

    */

function CheckRouteDeviation(dynamicZb, zbList, radius) {

var circles = [];

//遍历坐标集合,以每一个坐标点为圆心,创建圆

for (var i = 0; i < zbList.length; i++) {

var c = zbList[i]; //圆心 

//测试圆 radius代表圆的半径距离 单位:米

var circle = new BMap.Circle(c, radius);

circles.push(circle);

// 绘画圆

map.addOverlay(circle);

}

// console.log("测试圆:" + circles);

 

//循环遍历判断车辆当前坐标点是否在圆里

var flag = false;

for (var i = 0; i < circles.length; i++) {

//point:当前坐标点、circles[i]:规划好的圆

var result = BMapLib.GeoUtils.isPointInCircle(dynamicZb, circles[i]);

if (result == true) { //true:点是在圆圈里

flag = true;

break;

}

}

console.log("点是否在线路上(是否在线路坐标点圆中):" + flag);

}

 

 

$(function() {

// ptInCircle();

})

 

// ----------------------------------------- 未用 ----------------------------

//点在圆内

function ptInCircle() {

var pt = new BMap.Point(116.404, 39.915); //测试点

var c = new BMap.Point(116.404, 39.915); //圆心 

var circle = new BMap.Circle(c, 500); //测试圆

 

var result = BMapLib.GeoUtils.isPointInCircle(pt, circle);

if (result == true) {

// alert("点在圆形内");

} else {

// alert("点在圆形外")

}

 

//演示:将点与圆形添加到地图上

// map.clearOverlays();

// var mkr = new BMap.Marker(pt);

// map.addOverlay(mkr);

map.addOverlay(circle);

}

 

//点在圆外

function ptOutCircle() {

var pt = new BMap.Point(116.396, 39.915); //测试点

var c = new BMap.Point(116.404, 39.915); //圆心 

var circle = new BMap.Circle(c, 500); //测试圆        

 

var result = BMapLib.GeoUtils.isPointInCircle(pt, circle);

if (result == true) {

alert("点在圆形内");

} else {

alert("点在圆形外")

}

 

//演示:将点与圆形添加到地图上

map.clearOverlays();

var mkr = new BMap.Marker(pt);

map.addOverlay(mkr);

map.addOverlay(circle);

}

</script>

方法二:


<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />

<style type="text/css">

body,

html,

#allmap {

width: 100%;

height: 100%;

overflow: hidden;

margin: 0;

font-family: "微软雅黑";

}

</style>

<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=您的ak"></script>

<title>整合修改官方驾车路线途经点途径点demo</title>

</head>

<body>

<div id="allmap"></div>

</body>

</html>

<script type="text/javascript">

// 百度地图API功能

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

map.centerAndZoom(new BMap.Point(116.404, 39.915), 11);

map.enableScrollWheelZoom(true);

 

var p1 = new BMap.Point(116.301934, 39.977552);

var p2 = new BMap.Point(116.508328, 39.919141);

// 途径点

var t1= new BMap.Point(116.365942, 39.996165);

var t2 = new BMap.Point(116.408757, 39.995704);

var waypointsList = [t1,t2];

var driving = new BMap.DrivingRoute(map, {

renderOptions: {

map: map,

autoViewport: true

}

});

driving.search(p1, p2, {

waypoints: waypointsList

}); //waypoints表示途经点

 

 

// 多路段坐标临时变量

var zbList = [];

driving.setSearchCompleteCallback(function() {

// 取出每段路坐标点数组

for (var i = 0; i <= waypointsList.length; i++) {

var pts = driving.getResults().getPlan(0).getRoute(i).getPath();

var zbLinshi = new BMap.Polyline(pts).getPath();

console.log("多路段坐标点数:" + zbLinshi.length);

// 多段路坐标点整合

zbList = zbList.concat(zbLinshi);

}

console.log("多路段坐标点数:" + zbList.length);

for (var i = 0; i < zbList.length; i++) {

console.log(zbList[i].lng+","+zbList[i].lat);

}

}

);

 

 

 

 

    // 坐标点画圆展示

var checkgetStatus = setInterval(function() {

if (driving.getStatus() == 0) {

// 返回成功终止检测

clearInterval(checkgetStatus);

// 画圆

CheckRouteDeviation(0, zbList, 200);

}

}, 1000);

 

 

//  画圆

function CheckRouteDeviation(dynamicZb, zbList, radius) {

var circles = [];

//遍历坐标集合,以每一个坐标点为圆心,创建圆

for (var i = 0; i < zbList.length; i++) {

var c = zbList[i]; //圆心 

//测试圆 radius代表圆的半径距离 单位:米

var circle = new BMap.Circle(c, radius);

circles.push(circle);

// 绘画圆

map.addOverlay(circle);

}

// console.log("测试圆:" + circles);

 

// //循环遍历判断车辆当前坐标点是否在圆里

// var flag = false;

// for (var i = 0; i < circles.length; i++) {

// //point:当前坐标点、circles[i]:规划好的圆

// var result = BMapLib.GeoUtils.isPointInCircle(dynamicZb, circles[i]);

// if (result == true) { //true:点是在圆圈里

// flag = true;

// break;

// }

// }

// console.log("点是否在线路上(是否在线路坐标点圆中):" + flag);

}

</script>

通过线路所有坐标点规划路线(回显线路) 源码:


<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />

<style type="text/css">

body,

html {

width: 100%;

height: 100%;

margin: 0;

font-family: "微软雅黑";

}

 

#allmap {

height: 500px;

width: 100%;

}

</style>

<title>通过坐标点绘画线路</title>

</head>

<body>

<div id="allmap"></div>

</body>

</html>

<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=你的百度AK"></script>

<script type="text/javascript" src="../js/jquery-1.8.3.js"></script>

<script type="text/javascript">

// 百度地图API功能

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

map.centerAndZoom(new BMap.Point(116.404, 39.915), 11);

map.enableScrollWheelZoom(true);

 

//途径点

var waypointsList = new Array();

waypointsList.push(new BMap.Point(116.456172, 39.833542));

waypointsList.push(new BMap.Point(116.501384, 39.832991));

waypointsList.push(new BMap.Point(116.53353, 39.802379));

 

 

$(function() {

var zbList = [

new BMap.Point(116.434896,39.851921),new BMap.Point(116.434825,39.851913),new BMap.Point(116.434654,39.851916),new BMap.Point(116.434172,39.851924),new BMap.Point(116.433598,39.851925),new BMap.Point(116.432602,39.851943),new BMap.Point(116.431988,39.851964),new BMap.Point(116.431737,39.851988),new BMap.Point(116.431486,39.852002),new BMap.Point(116.431264,39.852026),new BMap.Point(116.430902,39.852043),new BMap.Point(116.430399,39.852071),new BMap.Point(116.428398,39.852125),new BMap.Point(116.428177,39.852129),new BMap.Point(116.428177,39.852049),new BMap.Point(116.428176,39.852049),new BMap.Point(116.428165,39.851779),new BMap.Point(116.428165,39.851629),new BMap.Point(116.428165,39.851629),new BMap.Point(116.428155,39.851159),new BMap.Point(116.428113,39.849559),new BMap.Point(116.428102,39.848949),new BMap.Point(116.428092,39.848649),new BMap.Point(116.428082,39.848419),new BMap.Point(116.428061,39.847439),new BMap.Point(116.42803,39.84638),new BMap.Point(116.428029,39.846379),new BMap.Point(116.428019,39.845789),new BMap.Point(116.428019,39.845659),new BMap.Point(116.428019,39.845449),new BMap.Point(116.427987,39.843949),new BMap.Point(116.427997,39.843459),new BMap.Point(116.427997,39.843339),new BMap.Point(116.428007,39.843219),new BMap.Point(116.428027,39.843029),new BMap.Point(116.428077,39.842758),new BMap.Point(116.428097,39.842697),new BMap.Point(116.428267,39.842265),new BMap.Point(116.428267,39.842264),new BMap.Point(116.428286,39.842023),new BMap.Point(116.428437,39.841231),new BMap.Point(116.428437,39.841231),new BMap.Point(116.428456,39.84066),new BMap.Point(116.428416,39.840301),new BMap.Point(116.428365,39.839632),new BMap.Point(116.428345,39.839472),new BMap.Point(116.428314,39.839122),new BMap.Point(116.428324,39.838882),new BMap.Point(116.428334,39.838782),new BMap.Point(116.428404,39.838611),new BMap.Point(116.428615,39.838367),new BMap.Point(116.428977,39.838211),new BMap.Point(116.42947,39.838133),new BMap.Point(116.429762,39.838108),new BMap.Point(116.429902,39.838106),new BMap.Point(116.431864,39.838062),new BMap.Point(116.43287,39.838044),new BMap.Point(116.433001,39.838052),new BMap.Point(116.433514,39.838063),new BMap.Point(116.434037,39.838073),new BMap.Point(116.434359,39.838097),new BMap.Point(116.43443,39.838096),new BMap.Point(116.434742,39.83811),new BMap.Point(116.434822,39.838119),new BMap.Point(116.435175,39.838143),new BMap.Point(116.435607,39.838215),new BMap.Point(116.435607,39.838214),new BMap.Point(116.436432,39.838209),new BMap.Point(116.439642,39.838141),new BMap.Point(116.439783,39.838138),new BMap.Point(116.440095,39.838133),new BMap.Point(116.443797,39.838058),new BMap.Point(116.448301,39.837976),new BMap.Point(116.45005,39.837951),new BMap.Point(116.45005,39.837951),new BMap.Point(116.450462,39.837845),new BMap.Point(116.450954,39.837799),new BMap.Point(116.451908,39.837766),new BMap.Point(116.4524,39.8377),new BMap.Point(116.4524,39.8377),new BMap.Point(116.453414,39.837668),new BMap.Point(116.453997,39.837661),new BMap.Point(116.453997,39.837661),new BMap.Point(116.454067,39.837481),new BMap.Point(116.454167,39.837179),new BMap.Point(116.454607,39.835824),new BMap.Point(116.454868,39.835221),new BMap.Point(116.454918,39.835111),new BMap.Point(116.455058,39.834829),new BMap.Point(116.455218,39.834578),new BMap.Point(116.455449,39.834215),new BMap.Point(116.45583,39.833742),new BMap.Point(116.4561,39.833469),new BMap.Point(116.456101,39.833468),new BMap.Point(116.456311,39.833266),new BMap.Point(116.457073,39.832619),new BMap.Point(116.457815,39.832043),new BMap.Point(116.458276,39.831689),new BMap.Point(116.458336,39.831639),new BMap.Point(116.459718,39.830569),new BMap.Point(116.46088,39.829652),new BMap.Point(116.461,39.829561),new BMap.Point(116.461131,39.829451),new BMap.Point(116.461301,39.82931),new BMap.Point(116.461421,39.829209),new BMap.Point(116.465443,39.826117),new BMap.Point(116.465583,39.826007),new BMap.Point(116.468242,39.823937),new BMap.Point(116.471398,39.821506),new BMap.Point(116.471558,39.821387),new BMap.Point(116.473194,39.820116),new BMap.Point(116.473613,39.819789),new BMap.Point(116.474072,39.819432),new BMap.Point(116.474471,39.819105),new BMap.Point(116.47464,39.818936),new BMap.Point(116.475089,39.81849),new BMap.Point(116.475189,39.818371),new BMap.Point(116.475189,39.818369),new BMap.Point(116.475588,39.817932),new BMap.Point(116.475877,39.817605),new BMap.Point(116.475907,39.817585),new BMap.Point(116.476096,39.817377),new BMap.Point(116.476884,39.816494),new BMap.Point(116.477621,39.815681),new BMap.Point(116.477691,39.815572),new BMap.Point(116.47792,39.815325),new BMap.Point(116.478578,39.814632),new BMap.Point(116.478628,39.814572),new BMap.Point(116.478887,39.814265),new BMap.Point(116.478887,39.814264),new BMap.Point(116.479415,39.81368),new BMap.Point(116.480391,39.812692),new BMap.Point(116.480739,39.812376),new BMap.Point(116.481048,39.81213),new BMap.Point(116.482024,39.811363),new BMap.Point(116.482771,39.810763),new BMap.Point(116.48292,39.810655),new BMap.Point(116.483278,39.810371),new BMap.Point(116.484572,39.80932),new BMap.Point(116.485239,39.80871),new BMap.Point(116.485975,39.807881),new BMap.Point(116.486025,39.807812),new BMap.Point(116.486025,39.807811),new BMap.Point(116.486115,39.807653),new BMap.Point(116.486493,39.807089),new BMap.Point(116.486851,39.806485),new BMap.Point(116.486861,39.806465),new BMap.Point(116.486981,39.806317),new BMap.Point(116.48702,39.806258),new BMap.Point(116.48715,39.80605),new BMap.Point(116.48717,39.80602),new BMap.Point(116.487866,39.804902),new BMap.Point(116.488304,39.80419),new BMap.Point(116.488434,39.803972),new BMap.Point(116.488951,39.803121),new BMap.Point(116.489021,39.803012),new BMap.Point(116.489071,39.802943),new BMap.Point(116.489946,39.801489),new BMap.Point(116.490812,39.800064),new BMap.Point(116.490952,39.799877),new BMap.Point(116.490991,39.799817),new BMap.Point(116.491071,39.799709),new BMap.Point(116.492533,39.798065),new BMap.Point(116.493001,39.797484),new BMap.Point(116.493369,39.797021),new BMap.Point(116.493687,39.796697),new BMap.Point(116.493827,39.79659),new BMap.Point(116.495547,39.794672),new BMap.Point(116.495548,39.79467),new BMap.Point(116.496413,39.793686),new BMap.Point(116.49892,39.790853),new BMap.Point(116.499129,39.790647),new BMap.Point(116.499228,39.790559),new BMap.Point(116.499228,39.790559),new BMap.Point(116.499577,39.790195),new BMap.Point(116.501806,39.787686),new BMap.Point(116.502253,39.787184),new BMap.Point(116.502582,39.78682),new BMap.Point(116.50298,39.786477),new BMap.Point(116.503626,39.786069),new BMap.Point(116.504144,39.785838),new BMap.Point(116.505626,39.785423),new BMap.Point(116.505626,39.785422),new BMap.Point(116.505805,39.785385),new BMap.Point(116.505984,39.785338),new BMap.Point(116.505984,39.785338),new BMap.Point(116.506441,39.785225),new BMap.Point(116.5067,39.785159),new BMap.Point(116.507526,39.784953),new BMap.Point(116.508003,39.78483),new BMap.Point(116.511089,39.784034),new BMap.Point(116.511159,39.784015),new BMap.Point(116.511408,39.783959),new BMap.Point(116.514048,39.783281),new BMap.Point(116.514387,39.783194),new BMap.Point(116.518375,39.782161),new BMap.Point(116.518405,39.782162),new BMap.Point(116.518605,39.782113),new BMap.Point(116.518605,39.782112),new BMap.Point(116.518764,39.782064),new BMap.Point(116.520431,39.781634),new BMap.Point(116.52118,39.781409),new BMap.Point(116.521569,39.781261),new BMap.Point(116.523208,39.780527),new BMap.Point(116.523438,39.780408),new BMap.Point(116.523548,39.780358),new BMap.Point(116.523588,39.780438),new BMap.Point(116.523588,39.780438),new BMap.Point(116.523648,39.780588),new BMap.Point(116.523747,39.780828),new BMap.Point(116.523747,39.780828),new BMap.Point(116.524355,39.782329),new BMap.Point(116.524944,39.78376),new BMap.Point(116.524993,39.78389),new BMap.Point(116.525811,39.78589),new BMap.Point(116.526301,39.78643),new BMap.Point(116.52654,39.78668),new BMap.Point(116.52655,39.786729),new BMap.Point(116.52665,39.786809),new BMap.Point(116.52665,39.786809),new BMap.Point(116.52679,39.786849),new BMap.Point(116.52693,39.786989),new BMap.Point(116.52701,39.787069),new BMap.Point(116.52713,39.787189),new BMap.Point(116.52739,39.787359),new BMap.Point(116.52839,39.787847),new BMap.Point(116.52867,39.787987),new BMap.Point(116.52901,39.788146),new BMap.Point(116.52921,39.788245),new BMap.Point(116.52905,39.788545),new BMap.Point(116.52905,39.788546),new BMap.Point(116.528679,39.789026),new BMap.Point(116.528539,39.789126),new BMap.Point(116.528529,39.789147),new BMap.Point(116.528329,39.789407)

];

drawRoute(map, zbList);

})

 

 

//规划路线

function drawRoute(map, zbList) {

var arrPois = [];

var lineColor = "";

 

//循环遍历数组

for (var i = 0; i < zbList.length - 1; i++) {

//清空数组,如若不清空,会在原来基础上每次在重复的增加一边。这儿是让每两个点画线,否则第二次进来的时候就成四个数据了,第二个重复了一次

arrPois.splice(0, arrPois.length);

//          arrPois.push(this.translateBD(zbList[i].Latitude, zbList[i].Longitude));

//          arrPois.push(this.translateBD(zbList[i + 1].Latitude, zbList[i + 1].Longitude));

arrPois.push(new BMap.Point(zbList[i].lng, zbList[i].lat));

arrPois.push(new BMap.Point(zbList[i + 1].lng, zbList[i + 1].lat));

//区间颜色

// if (zbList[i].Speed < 30) {

// lineColor = "#fed769";

// } else if (zbList[i].Speed > 30 && zbList[i].Speed < 60) {

// lineColor = "#b0e758";

// } else if (zbList[i].Speed > 60 && zbList[i].Speed < 90) {

// lineColor = "#37d49a";

// } else if (zbList[i].Speed > 90 && zbList[i].Speed < 120) {

// lineColor = "#0c9be4";

// } else if (zbList[i].Speed > 120) {

// lineColor = "#960100";

// }

 

//创建线路

window.polyline = new BMap.Polyline(

arrPois, //所有的GPS坐标点

{

// strokeColor: lineColor, //线路颜色

strokeColor: "#7F98C7", //线路颜色

strokeWeight: 4, //线路大小5

strokeOpacity: 1

//线路类型(虚线)

// strokeStyle: "dashed"

});

 

 

//绘制线路

map.addOverlay(polyline);

}

 

//创建marker 

var m1 = new BMap.Marker(zbList[0]);

var m2 = new BMap.Marker(zbList[zbList.length - 1]);

map.addOverlay(m1);

map.addOverlay(m2);

 

//创建label    

var lab1 = new BMap.Label("起点", {

position: zbList[0]

});

var lab2 = new BMap.Label("终点", {

position: zbList[zbList.length - 1]

});

map.addOverlay(lab1);

map.addOverlay(lab2);

}

</script>



  • 2021-02-03 16:57:34

    iOS中的动态库和静态库分析

    由于最近研究组件化后调试时二进制映射源码的功能,发现需要对开发中的动态库和静态库需要有一些了解。所以就有了这篇文章,由于只是了解,并没有深入到编译层面,所以本篇文章只是简单了解一些库的知识,并不深入。

  • 2021-02-03 16:58:39

    iOS静态库与动态库的区别与打包

    这篇主要是记录一下 iOS 下静态库与动态库的打包流程,以便以后用到时快速查阅,供自己也供大家学习记录。同时也简述了一下 动态库 与 静态库 的区别。

  • 2021-02-03 16:59:59

    iOS 静态库和动态库全分析

    库就是程序代码的集合,将 N 个文件组织起来,是共享程序代码的一种方式。从本质上来说是一种可执行代码的二进制格式,可以被载入内存中执行。

  • 2021-02-03 17:01:30

    iOS库 .a与.framework区别

    静态库:连接时完整地拷贝至可执行文件中,被屡次使用就有多份冗余拷贝。 动态库:连接时不复制,程序运行时由系统动态加载到内存,供程序调用,系统只加载一次,多个程序共用,节省内存。

  • 2021-02-03 17:13:58

    iOS - 封装静态库

    静态库:链接时完整的拷贝至可执行文件中,被多次使用就有多份冗余拷贝,.a的静态库 .framework的静态库

  • 2021-02-03 17:16:07

    iOS 中的动态库、静态库和 framework

    首先来看什么是库,库(Library)说白了就是一段编译好的二进制代码,加上头文件就可以供别人使用。 什么时候我们会用到库呢?一种情况是某些代码需要给别人使用,但是我们不希望别人看到源码,就需要以库的形式进行封装,只暴露出头文件。另外一种情况是,对于某些不会进行大的改动的代码,我们想减少编译的时间,就可以把它打包成库,因为库是已经编译好的二进制了,编译的时候只需要 Link 一下,不会浪费编译时间。

  • 2021-02-03 17:17:53

    iOS 同一个工程下打包不同的app

    应用图标,启动画面,应用启动后的首页都不一样。 有些课程(例如公务员考试和高考)是有目标考试的概念,不同的目标考试大纲是不一样的。拿高考来举例,北京的高考和上海的高考,就有着完全不一样的考试大纲。高考的文科和理科,又有着完全不同的考试科目。 有些课程会有一些自定义的界面,例如高考的应用可以设置昵称,有些课程的真题练习中是有推荐真题模块的,而有些课程又没有。 有些课程有扫描答题卡功能,有些课程有考前冲刺功能,有些课程有大题专项查看功能,而有些课程又没有上述功能。另外还有一些微小细节,但是解决方法和类似,所以就不一一展开说明。

  • 2021-02-04 14:02:30

    window软件界面找不到了跑到屏幕外面去了

    一般可以这样操作,按Alt+空格,然后按M,然后用上下左右键把窗口移动到能看到的地方,再按回车。有些第三方的软件可能不能用,大部分都可以这样做。

  • 2021-02-04 14:08:13

    基于 Electron 的爬虫框架 Nightmare

    Electron 可以让你使用纯 JavaScript 调用 Chrome 丰富的原生的接口来创造桌面应用。你可以把它看作一个专注于桌面应用的 Node.js 的变体,而不是 Web 服务器。其基于浏览器的应用方式可以极方便的做各种响应式的交互,接下来介绍下关于 Electron 上衍生出的框架 Nightmare