/// <summary>
///获取当两侧射线都有交点时的追踪交点
/// </summary>
/// <param name="outRay">从射线面发出的射线</param>
/// <param name="rayCrossNode">射线与交点的dictionary</param>
/// <param name="ter">地形</param>
/// <param name="rxBall">接收球</param>
/// <param name="buildings">建筑物</param>
/// <param name="rayBeamAngle">射线束的夹角</param>
/// <returns></returns>
private void GetCrossNodeWhenTwoRaysTrue(List <RayInfo> outRay, Dictionary <RayInfo, Node> rayCrossNode, Terrain ter, ReceiveBall rxBall, City buildings, double rayBeamAngle, ref int i)
{
//两个交点都是反射点
if (rayCrossNode[outRay[i]].NodeStyle == NodeStyle.ReflectionNode && rayCrossNode[outRay[i]].NodeStyle == NodeStyle.ReflectionNode)
{
//是同一个反射面
if (rayCrossNode[outRay[i]].ReflectionFace.Equals(rayCrossNode[outRay[i + 1]].ReflectionFace))
{
return;
}
else
{
if (rayCrossNode[outRay[i]].ReflectionFace.FaceStyle == FaceType.Terrian && rayCrossNode[outRay[i + 1]].ReflectionFace.FaceStyle == FaceType.Terrian)
{
if (rayCrossNode[outRay[i]].ReflectionFace.FaceID.JudgeIsSameID(rayCrossNode[outRay[i + 1]].ReflectionFace.FaceID))
{
AdjacentEdge diffractionEdge = new AdjacentEdge(rayCrossNode[outRay[i]].ReflectionFace, rayCrossNode[outRay[i + 1]].ReflectionFace);
Point diffractionPoint = new RayInfo(diffractionEdge.StartPoint, diffractionEdge.EndPoint).GetCrossPointWithFace(this.rayFace);
if (diffractionEdge.JudgeIfPointInLineRange(diffractionPoint))//若绕射点在棱上
{
RayInfo inRay = new RayInfo(this.launchPoint, diffractionPoint);
Node lineNode = this.GetLineNode(inRay);
Node diffractionNode = this.GetDiffractionNode(lineNode, diffractionPoint, diffractionEdge);
rayCrossNode.Add(inRay, diffractionNode);
i++;
}
}
else
{
this.SetNewMiddleRay(outRay, rayCrossNode, ter, rxBall, buildings, rayBeamAngle, ref i);
}
}
else if (rayCrossNode[outRay[i]].ReflectionFace.FaceStyle == FaceType.Terrian && rayCrossNode[outRay[i + 1]].ReflectionFace.FaceStyle == FaceType.Building)
{
}
else if (rayCrossNode[outRay[i]].ReflectionFace.FaceStyle == FaceType.Building && rayCrossNode[outRay[i + 1]].ReflectionFace.FaceStyle == FaceType.Terrian)
{
}
else
{
}
}
}
//一个交点是反射点，一个交点是绕射点
else if (rayCrossNode[outRay[i]].NodeStyle == NodeStyle.ReflectionNode && rayCrossNode[outRay[i]].NodeStyle == NodeStyle.DiffractionNode)
{
}
//一个交点是反射点，一个交点是绕射点
else if (rayCrossNode[outRay[i]].NodeStyle == NodeStyle.DiffractionNode && rayCrossNode[outRay[i]].NodeStyle == NodeStyle.ReflectionNode)
{
}
else//两个交点都是绕射点
{
}
}
/// <summary>
///根据绕射点范围和取点距离取多个绕射点
/// </summary>
/// <param name="crossPoint">射线与圆柱体的交点</param>
/// <param name="diffEdge">绕射棱</param>
/// <returns>在绕射点范围内一定个数的点的list</returns>
private List <Point> GetDiffractionNodePoistions(Point crossPoint, AdjacentEdge diffEdge)
{
Point rightPoint = new RayInfo(crossPoint, diffEdge.EndPoint).GetPointOnRayVector(diffEdge.DiffCylinderRadius);
Point leftPoint = new RayInfo(crossPoint, diffEdge.StartPoint).GetPointOnRayVector(diffEdge.DiffCylinderRadius);
List <Point> diffPoints = new List <Point> {
crossPoint
};
diffPoints.AddRange(this.GetSamplingPointsInRange(crossPoint, rightPoint, 5));
diffPoints.AddRange(this.GetSamplingPointsInRange(crossPoint, leftPoint, 5));
for (int i = diffPoints.Count - 1; i >= 0; i--)
{
if (!diffEdge.JudgeIfPointInLineRange(diffPoints[i]) || diffPoints[i].equal(diffEdge.StartPoint) || diffPoints[i].equal(diffEdge.EndPoint))
{
diffPoints.RemoveAt(i);
}
}
return(diffPoints);
}