本文介绍了在谷歌地图上显示路径使用道路的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有多个经纬度点。开始就像一个循环例如：
long lat，start point
long lat
3长期经济
4长期经济
。
p>
。
第n个结点长点
我的代码是：
不要将 src 推入路径，它是第一个指向总览路径。删除这行：
path.push（src）;
程式码片段：
var markers = [ {title：'1'，'lat'：'30 .705911'，'lng'：'76 .679656'，'description'：'1'}，{title：'2'，'lat'：'30 .701713' ，lng：'76 .684097'，'description'：'2'}，{title：'2'，'lat'：'30 .703291'，'lng'：'76.701022'，'description'：'2' }，{title：'2'，'lat'：'30 .691888'，'lng'：'76.710721'，'description'：'2'}]; window.onload = function（）{var mapOptions = {center ：new google.maps.LatLng（markers [0] .lat，markers [0] .lng），zoom：10，mapTypeId：google.maps.MapTypeId.ROADMAP}; var map = new google.maps.Map（document.getElementById（dvMap），mapOptions）; var infoWindow = new google.maps.InfoWindow（）; var lat_lng = new Array（）; var latlngbounds = new google.maps.LatLngBounds（）;对于（i = 0; i< markers.length; i ++）{var data = markers [i] var myLatlng = new google.maps.LatLng（data.lat，data.lng）; lat_lng.push（myLatlng）; var marker = new google.maps.Marker（{position：myLatlng，map：map，title：data.title}）; latlngbounds.extend（marker.position）; （function（marker，data）{google.maps.event.addListener（marker，click，function（e）{infoWindow.setContent（data.description）; infoWindow.open（map，marker）;}）;}） （标记，数据）; } map.setCenter（latlngbounds.getCenter（））; map.fitBounds（的LatLngBounds）; // *********** ROUTING **************** // //初始化路径数组var path = new google.maps.MVCArray（）; //初始化定向服务var service = new google.maps.DirectionsService（）; //设置路径笔画颜色var poly = new google.maps.Polyline（{map：map，strokeColor：'＃4986E7'}）; （var i = 0; i< lat_lng.length; i ++）{if（（i + 1）< lat_lng.length）{var src = lat_lng [i]）在MAP上的点之间循环和绘制路径路径。 ; var des = lat_lng [i + 1]; // path.push（src）; poly.setPath（路径）; service.route（{origin：src，destination：des，travelMode：google.maps.DirectionsTravelMode.DRIVING}，function（result，status）{if（status == google.maps.DirectionsStatus.OK）{for（var i = 0，len = result.routes [0] .overview_path.length; i< len; i ++）{path.push（result.routes [0] .overview_path [i]）;}}}）; }}}
html，body，＃dvMap {height： 100％;宽度：100％; margin：0px; < script src =http：//
//maps.google.com/maps/api/js\"></script><div id =dvMap>< / div>
i have multiple points of longitude and latitude. start like a loop for eg:
1 long lat, starting point
2 long lat
3 long lat
4 long lat
.
.
nth end long lat point
my code is :
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
var markers = [
{
"title": '1',
"lat": '30.705911',
"lng": '76.679656',
"description": '1'
}
,
{
"title": '2',
"lat": '30.701713',
"lng": '76.684097',
"description": '2'
},
{
"title": '2',
"lat": '30.703291',
"lng": ' 76.701022',
"description": '2'
},{
"title": '2',
"lat": '30.691888',
"lng": ' 76.710721',
"description": '2'
}
];
window.onload = function () {
var mapOptions = {
center: new google.maps.LatLng(markers[0].lat, markers[0].lng),
zoom: 10,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("dvMap"), mapOptions);
var infoWindow = new google.maps.InfoWindow();
var lat_lng = new Array();
var latlngbounds = new google.maps.LatLngBounds();
for (i = 0; i < markers.length; i++) {
var data = markers[i]
var myLatlng = new google.maps.LatLng(data.lat, data.lng);
lat_lng.push(myLatlng);
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: data.title
});
latlngbounds.extend(marker.position);
(function (marker, data) {
google.maps.event.addListener(marker, "click", function (e) {
infoWindow.setContent(data.description);
infoWindow.open(map, marker);
});
})(marker, data);
}
map.setCenter(latlngbounds.getCenter());
map.fitBounds(latlngbounds);
//***********ROUTING****************//
//Intialize the Path Array
var path = new google.maps.MVCArray();
//Intialize the Direction Service
var service = new google.maps.DirectionsService();
//Set the Path Stroke Color
var poly = new google.maps.Polyline({ map: map, strokeColor: '#4986E7' });
//Loop and Draw Path Route between the Points on MAP
for (var i = 0; i < lat_lng.length; i++) {
if ((i + 1) < lat_lng.length) {
var src = lat_lng[i];
var des = lat_lng[i + 1];
path.push(src);
poly.setPath(path);
service.route({
origin: src,
destination: des,
travelMode: google.maps.DirectionsTravelMode.DRIVING
}, function (result, status) {
if (status == google.maps.DirectionsStatus.OK) {
for (var i = 0, len = result.routes[0].overview_path.length; i < len; i++) {
path.push(result.routes[0].overview_path[i]);
}
}
});
}
}
}
</script>
<div id="dvMap" style="width: 800px; height: 800px">
</div>
i have face issue lines connected direct one to third point and one to fourth point
解决方案
Don't push the src into the path, it is a duplicate of the first point in the overview path. Remove this line:
path.push(src);
working fiddle
code snippet:
var markers = [{
"title": '1',
"lat": '30.705911',
"lng": '76.679656',
"description": '1'
}, {
"title": '2',
"lat": '30.701713',
"lng": '76.684097',
"description": '2'
}, {
"title": '2',
"lat": '30.703291',
"lng": ' 76.701022',
"description": '2'
}, {
"title": '2',
"lat": '30.691888',
"lng": ' 76.710721',
"description": '2'
}
];
window.onload = function() {
var mapOptions = {
center: new google.maps.LatLng(markers[0].lat, markers[0].lng),
zoom: 10,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("dvMap"), mapOptions);
var infoWindow = new google.maps.InfoWindow();
var lat_lng = new Array();
var latlngbounds = new google.maps.LatLngBounds();
for (i = 0; i < markers.length; i++) {
var data = markers[i]
var myLatlng = new google.maps.LatLng(data.lat, data.lng);
lat_lng.push(myLatlng);
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: data.title
});
latlngbounds.extend(marker.position);
(function(marker, data) {
google.maps.event.addListener(marker, "click", function(e) {
infoWindow.setContent(data.description);
infoWindow.open(map, marker);
});
})(marker, data);
}
map.setCenter(latlngbounds.getCenter());
map.fitBounds(latlngbounds);
//***********ROUTING****************//
//Intialize the Path Array
var path = new google.maps.MVCArray();
//Intialize the Direction Service
var service = new google.maps.DirectionsService();
//Set the Path Stroke Color
var poly = new google.maps.Polyline({
map: map,
strokeColor: '#4986E7'
});
//Loop and Draw Path Route between the Points on MAP
for (var i = 0; i < lat_lng.length; i++) {
if ((i + 1) < lat_lng.length) {
var src = lat_lng[i];
var des = lat_lng[i + 1];
// path.push(src);
poly.setPath(path);
service.route({
origin: src,
destination: des,
travelMode: google.maps.DirectionsTravelMode.DRIVING
}, function(result, status) {
if (status == google.maps.DirectionsStatus.OK) {
for (var i = 0, len = result.routes[0].overview_path.length; i < len; i++) {
path.push(result.routes[0].overview_path[i]);
}
}
});
}
}
}html,
body,
#dvMap {
height: 100%;
width: 100%;
margin: 0px;
padding: 0px
}<script src="http://maps.google.com/maps/api/js"></script>
<div id="dvMap" ></div>
这篇关于在谷歌地图上显示路径使用道路的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！
