我正在从GPX文件上绘制Google Maps API V3上的polyline。
在鼠标上，我有一个动画点，沿着多线线移动，使用function animateroute((;
目前，我没有一种方法可以删除鼠标out上的动画点，因此，如果您的鼠标，鼠标out，鼠标或鼠标等，您最终会沿着同一条线移动多个动画点。p>代码片段：(也请参见下面的完整工作URL(
var gmarkers = [];
function loadGPXFileIntoGoogleMap(map, filename,recordNum, name, hex_code) {
$.ajax({
type: "GET",
url: filename,
dataType: "xml",
success: function(xml) {
var points = [];
var bounds = new google.maps.LatLngBounds ();
$(xml).find("trkpt").each(function() {
var lat = $(this).attr("lat");
var lon = $(this).attr("lon");
if((lat != 0) && (lon != 0))
{
var p = new google.maps.LatLng(lat, lon);
points.push(p);
bounds.extend(p);
}
});
var strokeColor = "#ff0000";
var poly = new google.maps.Polyline({
path: points,
strokeColor: strokeColor,
strokeOpacity: 1,
strokeWeight: 4,
recordNum: recordNum,
});
poly.setMap(map);
google.maps.event.addListener(poly, 'mouseover', function() {
var start = {
path: "M-20,0a20,20 0 1,0 40,0a20,20 0 1,0 -40,0",
fillColor: '#00ff00',
fillOpacity: 1,
strokeColor:'#000000',
strokeWeight: 4,
scale: 0.5
}
var end = {
path: "M-20,0a20,20 0 1,0 40,0a20,20 0 1,0 -40,0",
fillColor: '#FF0000',
fillOpacity: 1,
strokeColor:'#000000',
strokeWeight: 4,
scale: 0.5
}
var markerStart = new google.maps.Marker({
position: poly.getPath().getAt(0),
icon: start,
map: map,
zIndex: 200,
scale: 1
});
gmarkers.push(markerStart);
var markerEnd = new google.maps.Marker({
position: poly.getPath().getAt(poly.getPath().getLength() - 1),
icon: end,
map: map,
zIndex: 200,
scale: 1
});
gmarkers.push(markerEnd);
var icons = this.setOptions({
icons: [{
icon: {
path: google.maps.SymbolPath.CIRCLE,
strokeOpacity: 1,
strokeColor: "#000000",
strokeWeight: 2,
scale: 4
},
}]});
animateRoute(poly);
});
function animateRoute(line) {
var count = 0;
window.setInterval(function() {
count = (count + 1) % 200;
var icons = poly.get('icons');
icons[0].offset = (count / 2) + '%';
poly.set('icons', icons);
}, 60);
}
google.maps.event.addListener(poly, 'mouseout', function() {
removeMarkers();
});
// fit bounds to track
map.fitBounds(bounds);
}
});
}
function removeMarkers(){
for(i=0; i<gmarkers.length; i++){
gmarkers[i].setMap(null);
}
}
$(document).ready(function() {
var mapOptions = {
zoom: 17,
mapTypeId: google.maps.MapTypeId.TERRAIN
};
var map = new google.maps.Map(document.getElementById("map"),
mapOptions);
loadGPXFileIntoGoogleMap(map, "cmsAdmin/uploads/blue_and_green_not_comfortable_.gpx","724","Example A","FFFF00");
loadGPXFileIntoGoogleMap(map, "cmsAdmin/uploads/taraweratrailrouterecce.gpx","431","Example B","4F4CBE");
});
完整的工作示例：https://www.wildthings.club/mapstack.php
悬停在蓝线上，您会看到动画点。鼠标关闭，然后又悬停了几秒钟后 - 将出现第二个点，并且第一个点仍在进行。重复，您很快就会有一堆抖动的点。
理想情况下，我想删除Mouseout上的所有动画点。
第二个选项是，如果该多线线上已经有一个，请不要添加随后的动画点图标(请注意，地图上有多个polyline(。
第三个选项失败的是将动画dot停止并在达到末端(位置标记(后删除，因此至少它不会循环。
我尝试将图标放入数组中，然后从那里删除(就像我对Gmarkers Array和emoveMarkers((一样，但没有运气。
我还玩过动画的Google Maps polyline播放，但这仅适用于直线点，而不是从GPX文件中遵循一系列点。
任何帮助，最感谢欢呼
您应该使用window.clearInterval()函数来删除您使用的间隔来对多线线上的图标进行动画。在animateRoute()中调用window.setInterval()时，应保存id。这是简单的JSBIN概念证明，该证明是根据该网站上的代码改编的。在我的代码中，我只是简单地使用全局id变量，然后在animateRoute()中更新该变量：
<!DOCTYPE html>
<html>
<head>
<title>Polyline path</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<style>
html, body, #map {
height: 100%;
width: 100%;
}
</style>
<script src="https://maps.googleapis.com/maps/api/js?key=YOUR_KEY" type="text/javascript"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script>
var map;
var id;
var gmarkers = [];
var gmarkersicons = [];
function initMap() {
var mapOptions = {
zoom: 3,
mapTypeId: google.maps.MapTypeId.TERRAIN,
center: {lat: 9.291, lng: -157.821}
};
map = new google.maps.Map(document.getElementById("map"),
mapOptions);
var points = [
{lat: 37.772, lng: -122.214},
{lat: 21.291, lng: -157.821},
{lat: -18.142, lng: 178.431},
{lat: -27.467, lng: 153.027}
];
var poly = new google.maps.Polyline({
path: points,
strokeColor: "red",
strokeOpacity: 1,
strokeWeight: 4,
recordNum: "test"
});
poly.setMap(map);
google.maps.event.addListener(poly, 'mouseover', function() {
var start = {
path: "M-20,0a20,20 0 1,0 40,0a20,20 0 1,0 -40,0",
fillColor: '#00ff00',
fillOpacity: 1,
strokeColor:'#000000',
strokeWeight: 4,
scale: 0.5
}
var end = {
path: "M-20,0a20,20 0 1,0 40,0a20,20 0 1,0 -40,0",
fillColor: '#FF0000',
fillOpacity: 1,
strokeColor:'#000000',
strokeWeight: 4,
scale: 0.5
}
var go = {
path: "M-20,0a20,20 0 1,0 40,0a20,20 0 1,0 -40,0",
fillColor: '#000000',
fillOpacity: 1,
strokeColor:'#fff',
strokeWeight: 4,
scale: 0.5
}
var markerStart = new google.maps.Marker({
position: poly.getPath().getAt(0),
icon: start,
map: map,
zIndex: 200,
scale: 1
});
gmarkers.push(markerStart);
var markerEnd = new google.maps.Marker({
position: poly.getPath().getAt(poly.getPath().getLength() - 1),
icon: end,
map: map,
zIndex: 200,
scale: 1
});
gmarkers.push(markerEnd);
var icons = this.setOptions({
icons: [{
icon: {
path: google.maps.SymbolPath.CIRCLE,
strokeOpacity: 1,
strokeColor: "#000000",
strokeWeight: 2,
scale: 4
},
}]});
this.setOptions({
strokeColor: "red",
scale: 1,
strokeWeight:15,
strokeOpacity:.6
});
var contentString = "Testing";
var infowindow = new google.maps.InfoWindow({
content: contentString
});
infowindow.open(map, markerStart);
id = animateRoute(poly);
});
function animateRoute(line) {
var count = 0;
var id = window.setInterval(function() {
count = (count + 1) % 200;
var icons = poly.get('icons');
icons[0].offset = (count / 2) + '%';
poly.set('icons', icons);
}, 60);
return id;
}
google.maps.event.addListener(poly, 'mouseout', function() {
removeMarkers();
this.setOptions({strokeColor:"red",strokeWeight:4,strokeOpacity:1});
this.setOptions( { suppressMarkers: true } );
this.setOptions({
icons: [{}]});
window.clearInterval(id);
});
function removeMarkers(){
for(i=0; i<gmarkers.length; i++){
gmarkers[i].setMap(null);
}
}
}
$(document).ready(function() {
initMap();
});
</script>
</head>
<body>
<div id="map"></div>
</body>
</html>