package com.ard.work.utils.gis; import com.ard.work.api.domian.Point; import com.ard.work.api.domian.PtzDto; import org.gavaghan.geodesy.*; import java.awt.geom.Point2D; import java.util.ArrayList; import java.util.List; public class GisUtil { public static GeodeticCalculator geodeticCalculator = new GeodeticCalculator(); /** * 根据经纬度，计算两点间的距离 * * @param From 第一个点的经纬度 * @param To 第二个点的经纬度 * @return 返回距离 单位米 */ public static double getDistance(double[] From, double[] To) { double longitudeFrom = From[0]; double latitudeFrom = From[1]; double longitudeTo = To[0]; double latitudeTo = To[1]; GlobalCoordinates source = new GlobalCoordinates(latitudeFrom, longitudeFrom); GlobalCoordinates target = new GlobalCoordinates(latitudeTo, longitudeTo); return geodeticCalculator.calculateGeodeticCurve(Ellipsoid.WGS84, source, target).getEllipsoidalDistance(); } public static double getDistance(Double[] From, Double[] To) { double longitudeFrom = From[0]; double latitudeFrom = From[1]; double longitudeTo = To[0]; double latitudeTo = To[1]; GlobalCoordinates source = new GlobalCoordinates(latitudeFrom, longitudeFrom); GlobalCoordinates target = new GlobalCoordinates(latitudeTo, longitudeTo); return geodeticCalculator.calculateGeodeticCurve(Ellipsoid.WGS84, source, target).getEllipsoidalDistance(); } /** * 根据经纬度，计算两点间的距离 * * @param longitudeFrom 第一个点的经度 * @param latitudeFrom 第一个点的纬度 * @param longitudeTo 第二个点的经度 * @param latitudeTo 第二个点的纬度 * @return 返回距离 单位米 */ public static double getDistance(double longitudeFrom, double latitudeFrom, double longitudeTo, double latitudeTo) { GlobalCoordinates source = new GlobalCoordinates(latitudeFrom, longitudeFrom); GlobalCoordinates target = new GlobalCoordinates(latitudeTo, longitudeTo); return geodeticCalculator.calculateGeodeticCurve(Ellipsoid.WGS84, source, target).getEllipsoidalDistance(); } public static double getDistance(Point From, Point To) { GlobalCoordinates source = new GlobalCoordinates(From.getLatitude(), From.getLongitude()); GlobalCoordinates target = new GlobalCoordinates(To.getLatitude(), To.getLongitude()); return geodeticCalculator.calculateGeodeticCurve(Ellipsoid.WGS84, source, target).getEllipsoidalDistance(); } /** * 计算从from到to方向的直线与正北方向夹角 * * @param longitudeFrom 第一个点的经度 * @param latitudeFrom 第一个点的纬度 * @param longitudeTo 第二个点的经度 * @param latitudeTo 第二个点的纬度 * @return 返回角度 */ public static double getNorthAngle(double longitudeFrom, double latitudeFrom, double longitudeTo, double latitudeTo) { GlobalPosition source = new GlobalPosition(latitudeFrom, longitudeFrom, 0); GlobalPosition target = new GlobalPosition(latitudeTo, longitudeTo, 0); return geodeticCalculator.calculateGeodeticMeasurement(Ellipsoid.WGS84, source, target).getAzimuth(); } public static double getNorthAngle(Point From, Point To) { GlobalPosition source = new GlobalPosition(From.getLatitude(), From.getLongitude(), 0); GlobalPosition target = new GlobalPosition(To.getLatitude(), To.getLongitude(), 0); return geodeticCalculator.calculateGeodeticMeasurement(Ellipsoid.WGS84, source, target).getAzimuth(); } /** * @param camera 经度,纬度,高度 如:{125.097531, 46.60029, 120}; * @param lookAt 经度,纬度,高度 如:{125.124731, 46.584808, 0}; * @param viewAngle 相机可视角度 如:20 * @param viewWidth 视域宽度 如:150 * @return ptz 数组 如:[129.5355798969157, -2.5419097807416655, 23.3676043024458] */ public static double[] getCameraPTZ(double[] camera, double[] lookAt, double viewAngle, double viewWidth) { double p = 0, t = 0, z = 0; double distance = getDistance(camera[0], camera[1], lookAt[0], lookAt[1]); double northAngle = getNorthAngle(camera[0], camera[1], lookAt[0], lookAt[1]); double height = lookAt[2] - camera[2]; p = northAngle; t = Angle.toDegrees(Math.atan(height / distance)); if (t < 0) { t += 360; } z = distance * Math.tan(viewAngle / 2) * 2 / viewWidth; return new double[]{p, t, z}; } public static PtzDto getCameraPTZ(Point camera, Point lookAt, double viewAngle, double viewWidth) { double[] cameraArr = {camera.getLongitude(),camera.getLatitude(),camera.getAltitude()}; double[] lookAtArr = {lookAt.getLongitude(),lookAt.getLatitude(),lookAt.getAltitude()}; double[] ptzArr = getCameraPTZ(cameraArr,lookAtArr,viewAngle,viewWidth); PtzDto ptzDto = new PtzDto((float)ptzArr[0], (float)ptzArr[1], (float)ptzArr[2]); return ptzDto; } /** * 根据开始坐标点，角度，计算结束点坐标 * * @param startGlobalCoordinates * @param startAngle 方向（以起点为中心） * @param distance 距离（单位：m） * @return */ public static GlobalCoordinates getGlobalCoordinates(GlobalCoordinates startGlobalCoordinates, double startAngle, double distance) { return new GeodeticCalculator().calculateEndingGlobalCoordinates(Ellipsoid.WGS84, startGlobalCoordinates, startAngle, distance); } /** * 判断当前位置是否在多边形区域内 * * @param orderLocation 当前点 * @param partitionLocation 区域顶点 * @return */ public static boolean isInPolygon(Point orderLocation, List partitionLocation) { double p_x = orderLocation.getLongitude(); double p_y = orderLocation.getLatitude(); Point2D.Double point = new Point2D.Double(p_x, p_y); List pointList = new ArrayList(); for (Point points : partitionLocation) { double polygonPoint_x = points.getLongitude(); double polygonPoint_y = points.getLatitude(); Point2D.Double polygonPoint = new Point2D.Double(polygonPoint_x, polygonPoint_y); pointList.add(polygonPoint); } return IsPtInPoly(point, pointList); } /** * 判断点是否在多边形内，如果点位于多边形的顶点或边上，也算做点在多边形内，直接返回true * * @param point 检测点 * @param pts 多边形的顶点 * @return 点在多边形内返回true, 否则返回false */ public static boolean IsPtInPoly(Point2D.Double point, List pts) { int N = pts.size(); boolean boundOrVertex = true; //如果点位于多边形的顶点或边上，也算做点在多边形内，直接返回true int intersectCount = 0;//cross points count of x double precision = 2e-10; //浮点类型计算时候与0比较时候的容差 Point2D.Double p1, p2;//neighbour bound vertices Point2D.Double p = point; //当前点 p1 = pts.get(0);//left vertex for (int i = 1; i <= N; ++i) {//check all rays if (p.equals(p1)) { return boundOrVertex;//p is an vertex } p2 = pts.get(i % N); if (p.x < Math.min(p1.x, p2.x) || p.x > Math.max(p1.x, p2.x)) { p1 = p2; continue; } if (p.x > Math.min(p1.x, p2.x) && p.x < Math.max(p1.x, p2.x)) { if (p.y <= Math.max(p1.y, p2.y)) { if (p1.x == p2.x && p.y >= Math.min(p1.y, p2.y)) { return boundOrVertex; } if (p1.y == p2.y) { if (p1.y == p.y) { return boundOrVertex; } else {//before ray ++intersectCount; } } else { double xinters = (p.x - p1.x) * (p2.y - p1.y) / (p2.x - p1.x) + p1.y; if (Math.abs(p.y - xinters) < precision) { return boundOrVertex; } if (p.y < xinters) { ++intersectCount; } } } } else { if (p.x == p2.x && p.y <= p2.y) { Point2D.Double p3 = pts.get((i + 1) % N); if (p.x >= Math.min(p1.x, p3.x) && p.x <= Math.max(p1.x, p3.x)) { ++intersectCount; } else { intersectCount += 2; } } } p1 = p2; } if (intersectCount % 2 == 0) {//偶数在多边形外 return false; } else { //奇数在多边形内 return true; } } //是否在中国范围 public static boolean isInChina(double lon, double lat) { // 定义中国的经纬度范围 double minLon = 73.33; double maxLon = 135.05; double minLat = 18.24; double maxLat = 53.33; // 判断经度和纬度是否在范围内 return minLon <= lon && lon <= maxLon && minLat <= lat && lat <= maxLat; } public static void main(String[] args) { // 125.097531,46.60029, 125.124731,46.584808 //相机位置 /* double[] camera = {125.146964331147,46.5580925811216,102};//经度,纬度,高度 //看向的位置 double[] lookAt = {125.155449,46.555108,0};//经度,纬度,高度 double viewAngle = 20;//相机可视角度 double viewWidth = 150;//相机视域宽度 double[] ptz = GisUtil.getCameraPTZ(camera, lookAt, viewAngle, viewWidth); System.out.println("ptz:" + Arrays.toString(ptz));*/ // double[] camera = {125.153903999999997,46.5600799999999992,258.430000000000007}; GlobalCoordinates camera = new GlobalCoordinates(45.755847, 126.640557); double p = 39.71; double distance = 164; GlobalCoordinates point = getGlobalCoordinates(camera, p, distance); System.out.println("point:"); System.out.println("lon:" + point.getLongitude()); System.out.println("lat:" + point.getLatitude()); } }