我的Google地图上有两种选项。
-->一种是多边形,另一种是画线。
现在我正在尝试在我的页面上执行撤消功能。当我点击撤消
按钮时,最近添加的线应该被移除(这可能位于多边形选项或画线选项中)。
这可行吗?
function initMap() {
var map = new google.maps.Map(document.getElementById('map'), {
center: {lat: -34.397, lng: 150.644},
zoom: 8
});
var drawingManager = new google.maps.drawing.DrawingManager({
drawingMode: google.maps.drawing.OverlayType.MARKER,
drawingControl: true,
drawingControlOptions: {
position: google.maps.ControlPosition.TOP_CENTER,
drawingModes: ['polygon', 'polyline']
},
circleOptions: {
strokeColor: '#00DB00',
fillColor: 'green',
fillOpacity: 0.05,
strokeWeight: 5,
clickable: false,
editable: true,
zIndex: 1
}
});
drawingManager.setMap(map);
google.maps.event.addListener(drawingManager, 'overlaycomplete', function (event)
{
if (event.type === 'marker') console.log('Lat: ' + event.overlay.position.lat() + ', Long: ' + event.overlay.position.lng())
else displayPolyLatLng(event.overlay.getPath().b);
});
function displayPolyLatLng(pointArray)
{debugger
var result=" ";
for (var i = 0; i < pointArray.length; i++)
{
result +='<b>Lat: ' + pointArray[i].lat() + ', Long: ' + pointArray[i].lng()+ '</b><br/>';
}
$('#info').html(result);
/*var lastEl = pointArray[pointArray.length-1];
alert(lastEl)
if(lastEl.length>1){
undo_redo.push(lastEl.pop());
} */
}
}
function removeLine(){
polylines.remove(polylines.size() - 1)
}
fiddle: https://jsfiddle.net/rc5p32nt/