Javascript 当对象在地图上移动时绘制路径
我有一个沿着谷歌地图移动的标记,但我需要它在移动时在地图上画出它的路径 这是创建映射的javascriptJavascript 当对象在地图上移动时绘制路径,javascript,jquery,google-maps,google-maps-api-3,Javascript,Jquery,Google Maps,Google Maps Api 3,我有一个沿着谷歌地图移动的标记,但我需要它在移动时在地图上画出它的路径 这是创建映射的javascript var map,marker; var startPos = [42.42679066670903, -83.29210638999939]; var speed = 150; // km/h var delay = 100; // If you set the delay below 1000ms and you go to another tab, // the setTimeou
var map,marker;
var startPos = [42.42679066670903, -83.29210638999939];
var speed = 150; // km/h
var delay = 100;
// If you set the delay below 1000ms and you go to another tab,
// the setTimeout function will wait to be the active tab again
// before running the code.
// See documentation :
// https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout#Inactive_tabs
function animateMarker(marker, coords, km_h)
{
var target = 0;
var km_h = km_h || 50;
coords.push([startPos[0], startPos[1]]);
function goToPoint()
{
var lat = marker.position.lat();
var lng = marker.position.lng();
var step = (km_h * 1000 * delay) / 3600000; // in meters
var dest = new google.maps.LatLng(
coords[target][0], coords[target][1]);
var distance =
google.maps.geometry.spherical.computeDistanceBetween(
dest, marker.position); // in meters
var numStep = distance / step;
var i = 0;
var deltaLat = (coords[target][0] - lat) / numStep;
var deltaLng = (coords[target][1] - lng) / numStep;
function moveMarker()
{
lat += deltaLat;
lng += deltaLng;
i += step;
if (i < distance)
{
marker.setPosition(new google.maps.LatLng(lat, lng));
setTimeout(moveMarker, delay);
}
else
{ marker.setPosition(dest);
target++;
if (target == coords.length){ target = 0; }
setTimeout(goToPoint, delay);
}
}
moveMarker();
}
goToPoint();
}
function initialize()
{
var myOptions = {
zoom: 16,
center: new google.maps.LatLng(42.425175091823974, -83.2943058013916),
mapTypeId: google.maps.MapTypeId.ROADMAP
};
map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
marker = new google.maps.Marker({
position: new google.maps.LatLng(startPos[0], startPos[1]),
icon: 'assets/images/c.png',
map: map
});
google.maps.event.addListenerOnce(map, 'idle', function()
{
animateMarker(marker, [
// The coordinates of each point you want the marker to go to.
// You don't need to specify the starting position again.
[42.42666395645802, -83.29694509506226],
[42.42300508749226, -83.29679489135742],
[42.42304468678425, -83.29434871673584],
[42.424882066428424, -83.2944130897522],
[42.42495334300206, -83.29203128814697]
], speed);
});
}
initialize();
var映射,标记;
var startPos=[42.42679066670903,-83.29210638999939];
var速度=150;//公里/小时
无功延迟=100;
//如果将延迟设置为1000毫秒以下,然后转到另一个选项卡,
//setTimeout函数将等待再次成为活动选项卡
//在运行代码之前。
//见文件:
// https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout#Inactive_tabs
功能动画标记器(标记器、坐标、公里)
{
var目标=0;
var km|h=km|h | 50;
coords.push([startPos[0],startPos[1]]);
函数goToPoint()
{
var lat=marker.position.lat();
var lng=marker.position.lng();
var步长=(公里小时*1000*延迟)/3600000;//以米为单位
var dest=new google.maps.LatLng(
coords[target][0]、coords[target][1];
var距离=
google.maps.geometry.spheremic.ComputedDistanceBetween(
dest,marker.position);//以米为单位
var numStep=距离/步长;
var i=0;
var deltaLat=(坐标[target][0]-lat)/numStep;
var deltaLng=(coords[target][1]-lng)/numStep;
函数moveMarker()
{
lat+=三角洲;
液化天然气+=德尔塔林;
i+=阶跃;
如果(i<距离)
{
marker.setPosition(新的google.maps.LatLng(lat,lng));
设置超时(移动标记,延迟);
}
其他的
{marker.setPosition(dest);
目标++;
如果(target==coords.length){target=0;}
设置超时(goToPoint,delay);
}
}
moveMarker();
}
goToPoint();
}
函数初始化()
{
变量myOptions={
缩放:16,
中心:新google.maps.LatLng(42.425175091823974,-83.2943058013916),
mapTypeId:google.maps.mapTypeId.ROADMAP
};
map=new google.maps.map(document.getElementById(“map_canvas”),myOptions);
marker=新的google.maps.marker({
职位:new google.maps.LatLng(startPos[0],startPos[1]),
图标:“assets/images/c.png”,
地图:地图
});
google.maps.event.addListenerOnce(map'idle',function()
{
动画标记器(标记器[
//要标记的每个点的坐标。
//无需再次指定起始位置。
[42.42666395645802, -83.29694509506226],
[42.42300508749226, -83.29679489135742],
[42.42304468678425, -83.29434871673584],
[42.424882066428424, -83.2944130897522],
[42.42495334300206, -83.29203128814697]
],速度);
});
}
初始化();
我尝试绘制路径,路径绘制正确,但对象不再移动。这是密码
var map,marker;
var startPos = [42.42679066670903, -83.29210638999939];
var speed = 150; // km/h
var delay = 100;
// If you set the delay below 1000ms and you go to another tab,
// the setTimeout function will wait to be the active tab again
// before running the code.
// See documentation :
// https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout#Inactive_tabs
function animateMarker(marker, coords, km_h)
{
var target = 0;
var km_h = km_h || 50;
coords.push([startPos[0], startPos[1]]);
function goToPoint()
{
var lat = marker.position.lat();
var lng = marker.position.lng();
var step = (km_h * 1000 * delay) / 3600000; // in meters
var dest = new google.maps.LatLng(
coords[target][0], coords[target][1]);
var distance =
google.maps.geometry.spherical.computeDistanceBetween(
dest, marker.position); // in meters
var numStep = distance / step;
var i = 0;
var deltaLat = (coords[target][0] - lat) / numStep;
var deltaLng = (coords[target][1] - lng) / numStep;
function moveMarker()
{
lat += deltaLat;
lng += deltaLng;
i += step;
if (i < distance)
{
marker.setPosition(new google.maps.LatLng(lat, lng));
setTimeout(moveMarker, delay);
}
else
{ marker.setPosition(dest);
target++;
if (target == coords.length){ target = 0; }
setTimeout(goToPoint, delay);
}
}
moveMarker();
}
goToPoint();
}
function initialize()
{
var myOptions = {
zoom: 16,
center: new google.maps.LatLng(42.425175091823974, -83.2943058013916),
mapTypeId: google.maps.MapTypeId.ROADMAP
};
map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
marker = new google.maps.Marker({
position: new google.maps.LatLng(startPos[0], startPos[1]),
icon: 'assets/images/c.png',
map: map
});
var flightPlanCoordinates = [
{lat: 42.42666395645802, lng: -83.29694509506226},
{lat: 42.42300508749226, lng: -83.29679489135742},
{lat: 42.42304468678425, lng: -83.29434871673584},
{lat: 42.424882066428424, lng: -83.2944130897522},
{lat: 42.42495334300206, lng: -83.29203128814697}
];
google.maps.event.addListenerOnce(map, 'idle', function()
{
animateMarker(marker, [
// The coordinates of each point you want the marker to go to.
// You don't need to specify the starting position again.
flightPlanCoordinates
], speed);
});
var flightPath = new google.maps.Polyline({
path: flightPlanCoordinates,
geodesic: true,
strokeColor: '#FF0000',
strokeOpacity: 1.0,
strokeWeight: 2
});
flightPath.setMap(map);
}
initialize();
var映射,标记;
var startPos=[42.42679066670903,-83.29210638999939];
var速度=150;//公里/小时
无功延迟=100;
//如果将延迟设置为1000毫秒以下,然后转到另一个选项卡,
//setTimeout函数将等待再次成为活动选项卡
//在运行代码之前。
//见文件:
// https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout#Inactive_tabs
功能动画标记器(标记器、坐标、公里)
{
var目标=0;
var km|h=km|h | 50;
coords.push([startPos[0],startPos[1]]);
函数goToPoint()
{
var lat=marker.position.lat();
var lng=marker.position.lng();
var步长=(公里小时*1000*延迟)/3600000;//以米为单位
var dest=new google.maps.LatLng(
coords[target][0]、coords[target][1];
var距离=
google.maps.geometry.spheremic.ComputedDistanceBetween(
dest,marker.position);//以米为单位
var numStep=距离/步长;
var i=0;
var deltaLat=(坐标[target][0]-lat)/numStep;
var deltaLng=(coords[target][1]-lng)/numStep;
函数moveMarker()
{
lat+=三角洲;
液化天然气+=德尔塔林;
i+=阶跃;
如果(i<距离)
{
marker.setPosition(新的google.maps.LatLng(lat,lng));
设置超时(移动标记,延迟);
}
其他的
{marker.setPosition(dest);
目标++;
如果(target==coords.length){target=0;}
设置超时(goToPoint,delay);
}
}
moveMarker();
}
goToPoint();
}
函数初始化()
{
变量myOptions={
缩放:16,
中心:新google.maps.LatLng(42.425175091823974,-83.2943058013916),
mapTypeId:google.maps.mapTypeId.ROADMAP
};
map=new google.maps.map(document.getElementById(“map_canvas”),myOptions);
marker=新的google.maps.marker({
职位:new google.maps.LatLng(startPos[0],startPos[1]),
图标:“assets/images/c.png”,
地图:地图
});
var FlightPlan坐标=[
{拉丁美洲:42.42666395645802,液化天然气:-83.29694509506226},
{拉丁美洲:42.42300508749226,液化天然气:-83.29679489135742},
{拉丁美洲:42.42304468678425,液化天然气:-83.29434871673584},
{拉丁美洲:42.424882066428424,液化天然气:-83.2944130897522},
{拉丁美洲:42.42495334300206,液化天然气:-83.29203128814697}
];
google.maps.event.addListenerOnce(map'idle',function()
{
动画标记器(标记器[
//要标记的每个点的坐标。
//无需再次指定起始位置。
飞行平面坐标
],速度);
});
var flightPath=new google.maps.Polyline({
路径:FlightPlan坐标,
测地线:正确,
strokeColor:“#FF0000”,
笔划不透明度:1.0,
冲程重量:2
});
flightPath.setMap(map);
}
初始化();
我怎样做记号笔来画它的拍子
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 3,
center: {lat: 0, lng: -180},
mapTypeId: google.maps.MapTypeId.TERRAIN
});
var polylineCoords = [];
var path = new google.maps.Polyline({
path: polylineCoords,
geodesic: true,
strokeColor: '#FF0000',
strokeOpacity: 1.0,
strokeWeight: 2
});
path.setMap(map);
//To add a Point on the polyline call
function addCoord(lat, lng) {
var point = new google.maps.LatLng(lat, lng);
var coords = path.getPath();
coords.push(point);
}