public static PointOnBearingRAD ( double startLat, double startLon, double distanceRAD, double bearingRAD, |
||
startLat | double | |
startLon | double | |
distanceRAD | double | |
bearingRAD | double | |
ctx | ||
reuse | System.Point | |
Résultat | System.Point |
private void AssertDistanceConversionImpl(double dist) { double radius = DistanceUtils.EARTH_MEAN_RADIUS_KM; //test back & forth conversion for both double distRAD = DistanceUtils.Dist2Radians(dist, radius); CustomAssert.EqualWithDelta(dist, DistanceUtils.Radians2Dist(distRAD, radius), EPS); double distDEG = DistanceUtils.Dist2Degrees(dist, radius); CustomAssert.EqualWithDelta(dist, DistanceUtils.Degrees2Dist(distDEG, radius), EPS); //test across rad & deg CustomAssert.EqualWithDelta(distDEG, DistanceUtils.ToDegrees(distRAD), EPS); //test point on bearing CustomAssert.EqualWithDelta( DistanceUtils.PointOnBearingRAD(0, 0, DistanceUtils.Dist2Radians(dist, radius), DistanceUtils.DEG_90_AS_RADS, ctx, new Point(0, 0, ctx)).X, distRAD, 10e-5); }
private readonly double radiusDEG = DistanceUtils.ToDegrees(1); //in degrees public override Point PointOnBearing(Point @from, double distDEG, double bearingDEG, SpatialContext ctx, Point reuse) { if (distDEG == 0) { if (reuse == null) { return(from); } reuse.Reset(from.GetX(), from.GetY()); return(reuse); } Point result = DistanceUtils.PointOnBearingRAD( DistanceUtils.ToRadians(from.GetY()), DistanceUtils.ToRadians(from.GetX()), DistanceUtils.ToRadians(distDEG), DistanceUtils.ToRadians(bearingDEG), ctx, reuse);//output result is in radians result.Reset(DistanceUtils.ToDegrees(result.GetX()), DistanceUtils.ToDegrees(result.GetY())); return(result); }