Javascript 如何在谷歌地图API中绘制两个标记之间的路线?
我有一个要求,一旦点击,当我选择时,我必须在两个标记之间画一条路线。我已经在谷歌地图API上成功上传了一个KML文件,所以标记在谷歌地图API上清晰可见 当我在单击时选择两个标记时,应该在所选标记之间绘制一条路线。我能够在两点之间画出一条静态路线,但是画的线没有沿着路线走。请导游。 另外,请找到我尝试过的代码。提前谢谢Javascript 如何在谷歌地图API中绘制两个标记之间的路线?,javascript,html,google-maps,google-maps-api-3,kml,Javascript,Html,Google Maps,Google Maps Api 3,Kml,我有一个要求,一旦点击,当我选择时,我必须在两个标记之间画一条路线。我已经在谷歌地图API上成功上传了一个KML文件,所以标记在谷歌地图API上清晰可见 当我在单击时选择两个标记时,应该在所选标记之间绘制一条路线。我能够在两点之间画出一条静态路线,但是画的线没有沿着路线走。请导游。 另外,请找到我尝试过的代码。提前谢谢 <!DOCTYPE html> <html> <head> <meta name="viewport" content="initial
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>Transit layer</title>
<style>
html,body,#map-canvas {
height: 100%;
margin: 0px;
padding: 0px
}
</style>
<link href="/maps/documentation/javascript/examples/default.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript" src="http://geoxml3.googlecode.com/svn/branches/polys/geoxml3.js"></script>
<script> function initialize()
{
var myLatlng = new google.maps.LatLng(0, -180);
var mapOptions =
{
zoom: 13,
center: myLatlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
var transitLayer = new google.maps.TransitLayer();
transitLayer.setMap(map);
var geoXml = new geoXML3.parser({map: map, singleInfoWindow: true});
geoXml.parse('kmload.kml');
var geoXml1 = new geoXML3.parser({map: map, singleInfoWindow: true});
geoXml1.parse('lines.kml');
var coordinates = [
new google.maps.LatLng(18.9800, 73.1000),
new google.maps.LatLng(19.0361, 73.0617)];
google.maps.event.addListener(map, "click", function (e)
{
var trainpath = new google.maps.Polyline({
path: coordinates,
geodesic: true,
strokeColor: '#FF0000',
strokeOpacity: 1.0,
strokeWeight: 2
});
trainpath.setMap(map);
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"></div>
</body>
</html>
过渡层
html,正文,#地图画布{
身高:100%;
边际:0px;
填充:0px
}
函数初始化()
{
var mylatng=new google.maps.LatLng(0,-180);
变量映射选项=
{
缩放:13,
中心:myLatlng,
mapTypeId:google.maps.mapTypeId.ROADMAP
}
var map=new google.maps.map(document.getElementById('map-canvas'),mapOptions);
var transitLayer=new google.maps.transitLayer();
transitLayer.setMap(map);
var geoXml=new geoXML3.parser({map:map,singleInfoWindow:true});
parse('kmload.kml');
var geomml1=new geomml3.parser({map:map,singleInfoWindow:true});
geoXml1.parse('lines.kml');
变量坐标=[
新的google.maps.LatLng(18.9800,73.1000),
新的google.maps.LatLng(19.0361,73.0617)];
google.maps.event.addListener(映射,“单击”,函数(e)
{
var trainpath=new google.maps.Polyline({
路径:坐标,
测地线:正确,
strokeColor:“#FF0000”,
笔划不透明度:1.0,
冲程重量:2
});
列车路径设置图(map);
});
}
google.maps.event.addDomListener(窗口“加载”,初始化);
我认为在拖动事件时必须获取并设置新的坐标。
因此,您在click事件中的代码中缺少此事件处理程序,例如以下示例:
google.maps.event.addListener(trainpath, 'drag',function(event) {
// set new coordinates for event, event.latLng.lat() and event.latLng.lng()
});
google.maps.event.addListener(trainpath, 'dragend',function(event) {
// set new coordinates for event, event.latLng.lat() and event.latLng.lng()
});
请在此线程中查看:
如果这没什么帮助,很抱歉。
向geoxml3添加一个自定义的“createMarker”函数,该函数向标记的单击侦听器添加一个函数,以触发方向服务
// global variables
var directions = {};
var directionsDisplay = new google.maps.DirectionsRenderer();
var directionsService = new google.maps.DirectionsService();
// geoxml3 configuration
var geoXml = new geoXML3.parser({
map: map,
createMarker: createMarker,
singleInfoWindow: true
});
// handle the directions service
function processMarkerClick(latLng) {
if (!directions.start) {
directions.start = latLng;
}
else if (!directions.end) {
directions.end = latLng;
directionsService.route({
origin:directions.start,
destination: directions.end,
travelMode: google.maps.TravelMode.DRIVING
},
function(result, status) {
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(result);
directionsDisplay.setMap(map);
}
else {
alert("Directions Request failed:" +status);
}
directions.start = null;
directions.end = null;
});
}
}
// custom createMarker function to add hook for the directions service
// (modified from the version in the geoxml3 source)
var createMarker = function (placemark, doc) {
// create a Marker to the map from a placemark KML object
// Load basic marker properties
var markerOptions = geoXML3.combineOptions(geoXml.options.markerOptions, {
map: geoXml.options.map,
position: new google.maps.LatLng(placemark.Point.coordinates[0].lat, placemark.Point.coordinates[0].lng),
title: placemark.name,
zIndex: Math.round(placemark.Point.coordinates[0].lat * -100000)<<5,
icon: placemark.style.icon,
shadow: placemark.style.shadow
});
// Create the marker on the map
var marker = new google.maps.Marker(markerOptions);
if (!!doc) {
doc.markers.push(marker);
}
// Set up and create the infowindow if it is not suppressed
if (!geoXml.options.suppressInfoWindows) {
var infoWindowOptions = geoXML3.combineOptions(geoXml.options.infoWindowOptions, {
content: '<div class="geoxml3_infowindow"><h3>' +
placemark.name +
'</h3><div>' +
placemark.description +
'</div></div>',
pixelOffset: new google.maps.Size(0, 2)
});
if (geoXml.options.infoWindow) {
marker.infoWindow = geoXml.options.infoWindow;
}
else {
marker.infoWindow = new google.maps.InfoWindow(infoWindowOptions);
}
marker.infoWindowOptions = infoWindowOptions;
// Infowindow-opening event handler
google.maps.event.addListener(marker, 'click', function() {
processMarkerClick(marker.getPosition());
this.infoWindow.close();
marker.infoWindow.setOptions(this.infoWindowOptions);
this.infoWindow.open(this.map, this);
});
}
placemark.marker = marker;
return marker;
};
//全局变量
var方向={};
var directionsDisplay=new google.maps.DirectionsRenderer();
var directionsService=new google.maps.directionsService();
//geoxml3配置
var geoXml=new geoXML3.parser({
地图:地图,
createMarker:createMarker,
singleInfoWindow:true
});
//处理方向服务
函数处理器标记单击(latLng){
如果(!directions.start){
方向。开始=车床;
}
否则,如果(!directions.end){
方向。结束=板条;
方向服务.路线({
来源:directions.start,
目的地:方向。结束,
travelMode:google.maps.travelMode.DRIVING
},
功能(结果、状态){
if(status==google.maps.directionstatus.OK){
方向显示。设置方向(结果);
方向显示.setMap(地图);
}
否则{
警报(“指示请求失败:+状态”);
}
directions.start=null;
directions.end=null;
});
}
}
//自定义createMarker函数为directions服务添加钩子
//(从geoxml3源代码中的版本修改)
var createMarker=函数(placemark,doc){
//从placemark KML对象创建地图的标记
//加载基本标记属性
var markerOptions=geoXML3.combineptions(geoXml.options.markerOptions{
map:geoXml.options.map,
位置:新建google.maps.LatLng(placemark.Point.coordinates[0].lat,placemark.Point.coordinates[0].lng),
标题:placemark.name,
zIndex:Math.round(placemark.Point.座标[0].lat*-100000)你可能正在寻找类似的东西。代码破坏者:谢谢你的参考,但问题是点之间绘制的路径不遵循任何路线,它直接连接两个点,我希望多段线遵循路线。什么是kmlload.kml和lines.kml?你能提供它们的内容,或测试的样本吗?你需要吗d如果您希望位置之间的路线沿道路行驶,请使用。