更新无人机飞行轨迹点重合信息展示

ZhuDongming

2019-07-29 0d1c2447166ecb26802904a611534547e118d490

 src/main/webapp/view/uavTrajectory.jsp

@@ -61,48 +61,125 @@
    moralMap['params'] = params;
    var sensorInfo = params["sensorInfo"];
    //var map = new BMap.Map("mapCanvas", defaultParam);
    var map = new BMap.Map("mapCanvas", { enableMapClick: false });
    var map = new BMap.Map("mapCanvas", {enableMapClick: false});
    var trackPoints = []; //用来存放从后台获取到的所有历史轨迹点的数据
    var winfowText;
    var coincidentPoints=new Array();
    if (sensorInfo.length > 0) {
        $.each(sensorInfo, function (item, value) {
            trackPoints.push(new BMap.Point(value.e76, value.e77));
        })
        for (var i = 0; i < trackPoints.length - 1; i++) {
        for (var i = 0; i < trackPoints.length; i++) {
            var startPoint = trackPoints[i];
            var endPoint = trackPoints[i + 1];
            showPath(startPoint, endPoint);
        }
        $.each(sensorInfo, function (item, value) {
            if(item==0){
                map.centerAndZoom(new BMap.Point(value.e76, value.e77), 17);
            var marker;
            var distance=parseInt(map.getDistance(startPoint,endPoint));
            map.addOverlay(polyline);// 画两点间线
            var arrowLength;//两点间箭头长度
            if(distance<=2){
                arrowLength=0;
            }else{
                arrowLength=5;
            }
            var flyingPoint = new BMap.Point(value.e76, value.e77);
            var marker = new BMap.Marker(flyingPoint);
            var infoWindow = new BMap.InfoWindow("时间："+value.uavDate
                +"</br> 经度："+value.e76
                +"</br> 纬度："+value.e77
                +"</br> 高度："+value.e78
                +"</br> 速度x："+value.e79
                +"</br> 速度y："+value.e80
                +"</br> 速度z："+value.e81,
                { enableMessage: false, width: 30, height: 130 });
            marker.addEventListener("click", function ()
            {
                this.openInfoWindow(infoWindow);
            });
            map.addOverlay(marker);
            var label = new BMap.Label(item + 1, {position: flyingPoint, offset: item<=8?new BMap.Size(-5, -22):new BMap.Size(-9, -22)});
            label.setStyle({
                color: "#fff",
                fontSize: "10px",
                backgroundColor: "0.05",
                border: "0",
                fontWeight: "bold"
            });
            map.addOverlay(label);
        });
    }
            if(coincidentPoints.indexOf(i)>-1){
                var polyline = new BMap.Polyline([
                        trackPoints[i],
                        trackPoints[i+1]
                    ],
                    {strokeColor: "green", strokeWeight: 2, strokeOpacity: 1}
                );
                distance=parseInt(map.getDistance(trackPoints[i],trackPoints[i+1]));
                map.addOverlay(polyline);// 画两点间线
                if(distance<=2){
                    arrowLength=0;
                }else{
                    arrowLength=5;
                }
                addArrow(polyline, arrowLength, Math.PI / 7);
                //判断是否已经已经显示过该点的信息，避免重复。
                continue;
            }

            var startIcon = new BMap.Icon("/img/start.png", new BMap.Size(48, 48));
            var endIcon = new BMap.Icon("/img/end.png", new BMap.Size(48, 48));
            if (i == 0) {
                map.centerAndZoom(startPoint, 17);
                marker = new BMap.Marker(startPoint, {icon: startIcon, offset: new BMap.Size(0, -20)});
            }
            if (i == trackPoints.length - 1) {
                marker = new BMap.Marker(startPoint, {icon: endIcon, offset: new BMap.Size(0, -20)});
            }
            if (i != 0 && i != trackPoints.length - 1) {
                marker = new BMap.Marker(startPoint);
            }
            winfowText = "时间：" + sensorInfo[i].uavDate
                + "</br> 经度：" + sensorInfo[i].e76
                + "</br> 纬度：" + sensorInfo[i].e77
                + "</br> 高度：" + sensorInfo[i].e78
                + "</br> 速度x：" + sensorInfo[i].e79
                + "</br> 速度y：" + sensorInfo[i].e80
                + "</br> 速度z：" + sensorInfo[i].e81;
            var count=0;
            for (var j=i+1;j< trackPoints.length; j++) {
                if (trackPoints[i].equals(trackPoints[j])) {
                    coincidentPoints.push(j);
                    count++;
                    winfowTextAdd = "</br> 时间：" + sensorInfo[j].uavDate
                        + "</br> 经度：" + sensorInfo[j].e76
                        + "</br> 纬度：" + sensorInfo[j].e77
                        + "</br> 高度：" + sensorInfo[j].e78
                        + "</br> 速度x：" + sensorInfo[j].e79
                        + "</br> 速度y：" + sensorInfo[j].e80
                        + "</br> 速度z：" + sensorInfo[j].e81;
                    winfowText += winfowTextAdd;
                    if(j==trackPoints.length-1){
                        marker = new BMap.Marker(trackPoints[j], {icon: endIcon, offset: new BMap.Size(0, -20)});
                        map.setCurrentCity("昆山");
                        map.setMapStyle(mapStyle);
                        map.enableScrollWheelZoom(true); // 开启鼠标滚轮缩放
                        var navigation = new BMap.NavigationControl({
                            anchor: BMAP_ANCHOR_BOTTOM_RIGHT,
                            type: BMAP_NAVIGATION_CONTROL_LARGE
                        });
                        map.maxZoom=20;
                        map.addControl(navigation);
                        map.addControl(new BMap.ScaleControl());
                    }
                }
            }

            (function (x) {
                var infoWindow = new BMap.InfoWindow(winfowText, {enableMessage: false, width: 30});
                marker.addEventListener("click", function () {
                    this.openInfoWindow(infoWindow);
                });
            })(i);

            if(count>0){
                var lab = new BMap.Label(count+1, {position: startPoint, offset: new BMap.Size(-7, -23)});
                lab.setStyle({
                    color: "#fff",
                    fontSize: "16px",
                    backgroundColor: "1",
                    border: "0",
                    fontWeight: "bold"
                });
                map.addOverlay(lab);

            }
            map.addOverlay(marker);
            var polyline = new BMap.Polyline([
                    startPoint,
                    endPoint
                ],
                {strokeColor: "green", strokeWeight: 2, strokeOpacity: 1}
            );
            if (i < trackPoints.length - 1) {
                map.addOverlay(polyline);// 画两点间线
                addArrow(polyline, arrowLength, Math.PI / 7);
            }
        }
    }
    var longitude;
    var latitude;
    var point;
@@ -111,6 +188,7 @@
        latitude = 31.391562;
        point = new BMap.Point(longitude, latitude);
        map.centerAndZoom(point, 17);
        alert("查不到相关数据");
    }
    map.setCurrentCity("昆山");
    map.setMapStyle(mapStyle);
@@ -122,20 +200,53 @@
    map.addControl(navigation);
    map.addControl(new BMap.ScaleControl());

    function showPath(startPoint, endPoint) {
        var walking = new BMap.WalkingRoute(map, {renderOptions:{map: map, autoViewport: true},
            onMarkersSet:function(routes) {
                map.removeOverlay(routes[0].marker); //删除起点
                map.removeOverlay(routes[1].marker);//删除终点
    function addArrow(polyline, length, angleValue) {
        var linePoint = polyline.getPath();// 线的坐标串
        var arrowCount = linePoint.length;
        for (var i = 1; i < arrowCount; i++) { // 在拐点处绘制箭头
            var pixelStart = map.pointToPixel(linePoint[i - 1]);
            var pixelEnd = map.pointToPixel(linePoint[i]);
            var angle = angleValue;// 箭头和主线的夹角
            var r = length; // r/Math.sin(angle)代表箭头长度
            var delta = 0; // 主线斜率，垂直时无斜率
            var param = 0; // 代码简洁考虑
            var pixelTemX, pixelTemY, poMiddleX, poMiddleY;// 临时点坐标
            var pixelX, pixelY, pixelX1, pixelY1;// 箭头两个点
            poMiddleX = (pixelEnd.x + pixelStart.x) / 2;
            poMiddleY = (pixelEnd.y + pixelStart.y) / 2;
            if (poMiddleX - pixelStart.x == 0) { // 斜率不存在时
                pixelTemX = poMiddleX;
                if (poMiddleY > pixelStart.y) {
                    pixelTemY = poMiddleY - r;
                } else {
                    pixelTemY = poMiddleY + r;
                }
                // 已知直角三角形两个点坐标及其中一个角，求另外一个点坐标算法
                pixelX = pixelTemX - r * Math.tan(angle);
                pixelX1 = pixelTemX + r * Math.tan(angle);
                pixelY = pixelY1 = pixelTemY;
            } else { // 斜率存在时
                delta = (poMiddleY - pixelStart.y) / (poMiddleX - pixelStart.x);
                param = Math.sqrt(delta * delta + 1);
                if ((poMiddleX - pixelStart.x) < 0) { // 第二、三象限
                    pixelTemX = poMiddleX + r / param;
                    pixelTemY = poMiddleY + delta * r / param;
                } else {  // 第一、四象限
                    pixelTemX = poMiddleX - r / param;
                    pixelTemY = poMiddleY - delta * r / param;
                }
                // 已知直角三角形两个点坐标及其中一个角，求另外一个点坐标算法
                pixelX = pixelTemX + Math.tan(angle) * r * delta / param;
                pixelY = pixelTemY - Math.tan(angle) * r / param;
                pixelX1 = pixelTemX - Math.tan(angle) * r * delta / param;
                pixelY1 = pixelTemY + Math.tan(angle) * r / param;
            }
        });
        var polyline = new BMap.Polyline([
                startPoint,
                endPoint
            ],
            {strokeColor: "green", strokeWeight: 2, strokeOpacity: 1}
        );
        map.addOverlay(polyline);// 画两点间线
    }

            var pointArrow = map.pixelToPoint(new BMap.Pixel(pixelX, pixelY));
            var pointArrow1 = map.pixelToPoint(new BMap.Pixel(pixelX1, pixelY1));
            var pointMiddle = map.pixelToPoint(new BMap.Pixel(poMiddleX, poMiddleY));
            var Arrow = new BMap.Polyline([pointArrow, pointMiddle, pointArrow1],
                {strokeColor: "green", strokeWeight: 2, strokeOpacity: 1});
            map.addOverlay(Arrow);
        }
    };
</script>