如何在不影响折线的情况下刷新谷歌地图 [英] How do I refresh a google map without affecting polylines
问题描述
您正在使用Google地图开发项目。在此我想展示特定的车辆经度和纬度。并为每个lat和lng添加标记。并且还绘制折线。
现在我必须在5秒内刷新地图。在这个我的折线影响,没有显示良好。这是我的代码
var markers = [];
函数submit(){
markers = [ ];
$ .ajax({
url:/ map / GetLatitudeValues,
类型:'post',
dataType:'json',
// imei:null,
data:{imei:$(#imei)。val()},
async:false,
成功:函数(数据){
var Objects = data;
for(对象中的var键){
markers.push({lat:Objects [key] .Latitude,lng:Objects [key] .Longitude});
}
},
错误:函数(XMLHttpRequest,textStatus,errorThrown){
alert(状态:+ textStatus);警报(错误:+ errorThrown);
}
}); loadmap();
setInterval(submit(),5000);
// loadmap();
}
$(document).ready(function(){
});
function loadmap(){
var mapOptions = {
center:new google.maps.LatLng(markers [0] .lat,markers [0] .lng),
zoom:10,
mapTypeId:google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById(dvMap),mapOptions);
var lat_lng = new Array();
var latlngbounds = new google.maps。 LatLngBounds();
for(i = 0; i< markers.length; i ++){
var data = markers [i ]
var myLatlng = new google.maps.LatLng (data.lat,data.lng);
lat_lng.push(myLatlng);
var marker = new google.maps.Marker({
位置:myLatlng,
地图:map
});
latlngbounds.extend(marker.position);
(函数(标记,数据){
var infoWindow = new google.maps.InfoWindow ({content:$(#imei)。val()+'纬度:'+ data.lat +'经度:'+ data.lng});
google.maps.event。 addListener(marker,click,function(e){
google.maps.event.trigger(map,'resize');
infoWindow.open(map,标记);
});
})(标记,数据);
}
map.setCenter(latlngbounds.getCenter());
map.fitBounds(latlngbounds);
//初始化路径数组
var path = new google.maps.MVCArr ay();
//初始化指导服务
var service = new google.maps.DirectionsService();
//设置路径描边颜色
var poly = new google.maps.Polyline({map:map, strokeColor:'#4986E7'});
// var path = poly.getPath();
// path.push(new google.maps.LatLng(data .lat,data.lng));
for(var i = 0;我< lat_lng.length; i ++){
if((i + 1)< lat_lng.length){
var src = lat_lng [i];
var des = lat_lng [i + 1];
poly.setPath(path);
service.route({
origin:src,
目的地:des,
travelMode:google.maps.DirectionsTravelMode.TRANSIT
},
函数(结果,状态){
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_路径[i]);
}
}
});
}
}
}
< / script>
Hi am developing a project with google map. In this i want to show the particular vehicle latitude and longitude. And put markers for each lat and lng. And also draw a polyline.
Now i have to refresh the map in 5 seconds. In this my polyline affecting, not showing in good. This is my code
var markers = [];
function submit() {
markers = [];
$.ajax({
url: "/map/GetLatitudeValues",
type: 'post',
dataType: 'json',
// imei:null,
data: {imei: $("#imei").val()},
async: false,
success: function (data) {
var Objects = data;
for (var key in Objects) {
markers.push({"lat": Objects[key].Latitude, "lng": Objects[key].Longitude});
}
},
error: function (XMLHttpRequest, textStatus, errorThrown) {
alert("Status: " + textStatus); alert("Error: " + errorThrown);
}
}); loadmap();
setInterval("submit()", 5000);
// loadmap();
}
$(document).ready(function () {
});
function loadmap() {
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 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
});
latlngbounds.extend(marker.position);
(function (marker, data) {
var infoWindow = new google.maps.InfoWindow({ content: $("#imei").val() + 'Latitude : ' + data.lat + 'Longitude : ' + data.lng});
google.maps.event.addListener(marker, "click", function (e) {
google.maps.event.trigger(map, 'resize');
infoWindow.open(map, marker);
});
})(marker, data);
}
map.setCenter(latlngbounds.getCenter());
map.fitBounds(latlngbounds);
//Initialize the Path Array
var path = new google.maps.MVCArray();
//Initialize the Direction Service
var service = new google.maps.DirectionsService();
//Set the Path Stroke Color
var poly = new google.maps.Polyline({ map: map, strokeColor: '#4986E7' });
// var path = poly.getPath();
// path.push(new google.maps.LatLng(data.lat,data.lng));
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];
poly.setPath(path);
service.route({
origin: src,
destination: des,
travelMode: google.maps.DirectionsTravelMode.TRANSIT
},
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>
< input type =textid =imeiname =imei/>
< input type =buttonvalue =submitonclick =submit()/>
请任意一个帮助......
<input type ="text" id="imei" name="imei" />
<input type="button" value="submit" onclick="submit()" />
Please any one help with this...
推荐答案
.ajax({
url:/ map / GetLatitudeValues,
类型:'post',
dataType:'json',
// imei:null,
data:{imei:
.ajax({
url: "/map/GetLatitudeValues",
type: 'post',
dataType: 'json',
// imei:null,
data: {imei:
( #imei)。val()},
async:false,
成功:函数(数据){
var Objects = data;
for(对象中的var键){
markers.push({lat:Objects [key] .Latitude,lng:Objects [key] .Longitude });
}
},
错误:函数(XMLHttpRequest,textStatus,errorThrown){
a lert(状态:+ textStatus); alert(错误:+ errorThrown);
}
}); loadmap();
setInterval(submit(),5000);
// loadmap();
}
("#imei").val()},
async: false,
success: function (data) {
var Objects = data;
for (var key in Objects) {
markers.push({"lat": Objects[key].Latitude, "lng": Objects[key].Longitude});
}
},
error: function (XMLHttpRequest, textStatus, errorThrown) {
alert("Status: " + textStatus); alert("Error: " + errorThrown);
}
}); loadmap();
setInterval("submit()", 5000);
// loadmap();
}
(document).ready(function(){
});
函数loadmap(){
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 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({
职位:myLatlng,
地图:地图
});
latlngbounds.extend(marker.position);
(函数(标记,数据){
var infoWindow = new google.maps.InfoWindow ({content:
(document).ready(function () {
});
function loadmap() {
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 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
});
latlngbounds.extend(marker.position);
(function (marker, data) {
var infoWindow = new google.maps.InfoWindow({ content:
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