我如何从data.json中的coordinateRoute数组中渲染L.featureGroup,以使用按钮“ Snake it!”进行处理,就像当我单击“ Snake”时一样它!”有自己的id,地图将显示带有相应的[[id
的coordinateRoute的折线Here's link of the code这里是data.json:
要更多
特定地这是我的尝试,但WRONG:
let route;
data.map((item) => {
if (item.id === 1 && item.coordinateRoute) {
return (route = L.featureGroup([
item.coordinateRoute.map((line) => {
if (i % 2 === 0) {
L.marker(item.coordinateRoute[i], { icon });
}
L.polyline([item.coordinateRoute[i], item.coordinateRoute[i + 1]]);
return i++;
}),
]));
return (route = L.featureGroup(lines));
}
return route;
});
这是我的代码:
let markerList = [];
let polyLineList = [];
let lines = [];
for (let i = 0; i < 4; i++) {
markerList.push(L.marker(data[0].coordinateRoute[i], { icon }));
if (data[0].coordinateRoute[i + 1]) {
polyLineList.push(
L.polyline(
[data[0].coordinateRoute[i], data[0].coordinateRoute[i + 1]],
{ snakingSpeed: 500 }
)
);
}
}
let l = Math.min(markerList.length, polyLineList.length);
for (let i = 0; i < l; i++) {
lines.push(markerList[i], polyLineList[i]);
}
const route = L.featureGroup(lines, { snakingPause: 50 });