//求得电场的垂直分量
//调用方法：thisEfield.GetVerticalE(k,l)
public Plural GetVerticalE(SpectVector k, SpectVector l) //k为射线传播方向，l为反射中的反射面的法向量或绕射中的与棱平行的向量
{
SpectVector n = k.CrossMultiplied(l).GetNormalizationVector();
Plural p = n.DotMultiplied(this);
return(p);
}
public SpectVector GetRightRotationVector(SpectVector vector, double rotationAngle)
{
double[] normalizations = new double[4];
double[] rotateparameters = new double[9];
//normalizations中四个值分别为：旋转轴的单位方向向量三个分量x，y，z，和旋转角度弧度值。
SpectVector rotationVector = vector.GetNormalizationVector();
normalizations[0] = rotationVector.a;
normalizations[1] = rotationVector.b;
normalizations[2] = rotationVector.c;
normalizations[3] = rotationAngle / 180 * Math.PI;//转换为弧度值
//旋转矩阵
rotateparameters[0] = Math.Cos(normalizations[3]) + normalizations[0] * normalizations[0] * (1 - Math.Cos(normalizations[3]));
rotateparameters[1] = normalizations[0] * normalizations[1] * (1 - Math.Cos(normalizations[3])) + normalizations[2] * Math.Sin(normalizations[3]);
rotateparameters[2] = normalizations[0] * normalizations[2] * (1 - Math.Cos(normalizations[3])) - normalizations[1] * Math.Sin(normalizations[3]);
rotateparameters[3] = normalizations[0] * normalizations[1] * (1 - Math.Cos(normalizations[3])) - normalizations[2] * Math.Sin(normalizations[3]);
rotateparameters[4] = Math.Cos(normalizations[3]) + normalizations[1] * normalizations[1] * (1 - Math.Cos(normalizations[3]));
rotateparameters[5] = normalizations[1] * normalizations[2] * (1 - Math.Cos(normalizations[3])) + normalizations[0] * Math.Sin(normalizations[3]);
rotateparameters[6] = normalizations[0] * normalizations[2] * (1 - Math.Cos(normalizations[3])) + normalizations[1] * Math.Sin(normalizations[3]);
rotateparameters[7] = normalizations[1] * normalizations[2] * (1 - Math.Cos(normalizations[3])) - normalizations[0] * Math.Sin(normalizations[3]);
rotateparameters[8] = Math.Cos(normalizations[3]) + normalizations[2] * normalizations[2] * (1 - Math.Cos(normalizations[3]));
double xtemp = this.a * rotateparameters[0] + this.b * rotateparameters[3] + this.c * rotateparameters[6];
double ytemp = this.a * rotateparameters[1] + this.b * rotateparameters[4] + this.c * rotateparameters[7];
double ztemp = this.a * rotateparameters[2] + this.b * rotateparameters[5] + this.c * rotateparameters[8];
return(new SpectVector(xtemp, ytemp, ztemp));
}
public RayInfo(Point one, Point two)
{
Origin = one;
SpectVector temp = new SpectVector(one, two);
RayVector = temp.GetNormalizationVector();
}
/// <summary>
///矢量夹角计算
/// </summary>
public double GetPhaseOfVector(SpectVector anotherVector)
{
double multipliedTemp, nTemp;
multipliedTemp = this.DotMultiplied(anotherVector);
double tempValue = Math.Sqrt(Math.Pow(a, 2) + Math.Pow(b, 2) + Math.Pow(c, 2)) * Math.Sqrt(Math.Pow(anotherVector.a, 2) + Math.Pow(anotherVector.b, 2) + Math.Pow(anotherVector.c, 2));
if (tempValue == 0)
{
nTemp = 0;
}
else
{
nTemp = multipliedTemp / tempValue;
}
if (nTemp < -1)
{
nTemp = -1;
}
if (nTemp > 1)
{
nTemp = 1;
}
double phase = Math.Acos(nTemp) / Math.PI * 180;
return(phase);
}
/// <summary>
///矢量夹角计算
/// </summary>
public static double VectorPhase(SpectVector k, SpectVector l)
{
double m, n;
m = VectorDotMultiply(k, l);
double temp = Math.Sqrt(Math.Pow(k.a, 2) + Math.Pow(k.b, 2) + Math.Pow(k.c, 2)) * Math.Sqrt(Math.Pow(l.a, 2) + Math.Pow(l.b, 2) + Math.Pow(l.c, 2));
if (temp == 0)
{
n = 0;
}
else
{
n = m / temp;
}
if (n < -1)
{
n = -1;
}
if (n > 1)
{
n = 1;
}
double phase = Math.Acos(n) / Math.PI * 180;
return(phase);
}
/// <summary>
///矢量点乘
/// </summary>
public double DotMultiplied(SpectVector anotherVector)
//调用方法：thisVector.DotMultiplied(anotherVector)
{
double multipled = a * anotherVector.a + b * anotherVector.b + c * anotherVector.c;
return(multipled);
}
/// <summary>
///求射线打到一个平面后得到的反射射线
/// </summary>
/// <param name="reflectionFace">反射面</param>
/// <returns>反射射线</returns>
public RayInfo GetReflectionRay(Face reflectionFace, Point crossPoint)
{
Point mirrorPoint = this.Origin.GetMirrorPoint(reflectionFace);
SpectVector vector = new SpectVector(mirrorPoint, crossPoint);
return(new RayInfo(crossPoint, vector));
}
/// <summary>
///获得直线与平面的交点
/// </summary>
/// <param viewFace="p">平面</param>
/// <returns>直线与三角面的交点</returns>
public Point GetCrossPointBetweenStraightLineAndFace(Face viewFace)
{
SpectVector vector = viewFace.NormalVector.GetNormalizationVector();//归一化
double temp = this.RayVector.DotMultiplied(vector);
if (Math.Abs(temp) < 0.00001)//如果向量和平面平行则返回null
{
return(null);
}
else
{
double TriD = vector.a * viewFace.Vertices[0].X + vector.b * viewFace.Vertices[0].Y + vector.c * viewFace.Vertices[0].Z;
double temp1 = vector.a * this.Origin.X + vector.b * this.Origin.Y + vector.c * this.Origin.Z - TriD;
double t = -temp1 / temp;
Point tempPoint = new Point(this.RayVector.a * t + this.Origin.X, this.RayVector.b * t + this.Origin.Y, this.RayVector.c * t + this.Origin.Z);
if (viewFace.JudgeIfPointInFace(tempPoint))
{
return(tempPoint);
}
else
{
return(null);//如果求出的交点不在三角面内，则返回空
}
}
}
public ClassNewRay(Point point, SpectVector sv, bool fg, List <Path> path = null)
{
this.Origin = point;
this.SVector = sv;
this.Flag = fg;
this.Path = path;
}
/// <summary>
/// 当点在直线上得到无限长棱上的绕射点
/// </summary>
/// <param name="origin">起始点</param>
/// <param name="target">观测点</param>
/// <returns>绕射点</returns>
public Point GetInfiniteDiffractionPointWhenInLine(Point origin, Point target)
{
double h1 = this.getDistanceP2Line(origin);
double h2 = this.getDistanceP2Line(target);
Point pedal1 = this.GetPedalPoint(origin);
Point pedal2 = this.GetPedalPoint(target);
if (h1 == 0)
{
return(origin);
}
if (h2 == 0)
{
return(target);
}
if (Math.Abs(pedal1.X - pedal2.X) < 0.000001 && Math.Abs(pedal1.Y - pedal2.Y) < 0.000001 && Math.Abs(pedal1.Z - pedal2.Z) < 0.000001)
{
return(pedal1);
}
double ratio = h1 / (h1 + h2);;
SpectVector tempVector = new SpectVector(pedal1, pedal2);
Point diffractPoint = new Point(tempVector.a * ratio + pedal1.X, tempVector.b * ratio + pedal1.Y, tempVector.c * ratio + pedal1.Z);
return(diffractPoint);
}
/// <summary>
/// 判断点是否在三角面中
/// </summary>
/// <param name="viewPoint">点</param>
/// <returns>返回点是否在三角面内的布尔值</returns>
public override bool JudgeIfPointInFace(Point viewPoint)
{
if (viewPoint.equal(this.vertices[0]) || viewPoint.equal(this.vertices[1]) || viewPoint.equal(this.vertices[2]))
{
return(true);
}
else
{
SpectVector Vda = new SpectVector(viewPoint, this.vertices[0]);
SpectVector Vdb = new SpectVector(viewPoint, this.vertices[1]);
SpectVector Vdc = new SpectVector(viewPoint, this.vertices[2]);
double Sdab = 0.5 * Vda.Mag() * Vdb.Mag() * Math.Sin(Vda.GetPhaseOfVector(Vdb) * Math.PI / 180); //三角形ABD的面积
double Sdac = 0.5 * Vda.Mag() * Vdc.Mag() * Math.Sin(Vda.GetPhaseOfVector(Vdc) * Math.PI / 180); //三角形ACD的面积
double Sdbc = 0.5 * Vdb.Mag() * Vdc.Mag() * Math.Sin(Vdb.GetPhaseOfVector(Vdc) * Math.PI / 180); //三角行BCD的面积
double Sabc = GetTriangleArea(); //三角面ABC的面积
double Dvalue = Sabc - Sdab - Sdac - Sdbc; //若点在三角面内，则Sabc+Sabc+Sacd=Sbcd;
if (Math.Abs(Dvalue) < 0.000001)
{
return(true);
}
else
{
return(false);
}
}
}
/// <summary>
///求两个向量的中间向量
/// </summary>
public SpectVector GetMiddleVectorOfTwoVectors(SpectVector otherVector)
{
SpectVector unitVector1 = this.GetNormalizationVector();
SpectVector unitVector2 = otherVector.GetNormalizationVector();
return(new SpectVector((unitVector1.a + unitVector2.a) / 2, (unitVector1.b + unitVector2.b) / 2, (unitVector1.c + unitVector2.c) / 2));
}
/// <summary>
/// 判断一点是否在线段内
/// </summary>
/// <param name="viewPoint">点</param>
/// <returns>返回点是否在线段内的布尔值</returns>
public bool JudgeIfPointInLineRange(Point viewPoint)
{
// if (this.SwitchToRay().JudgeIfPointIsInStraightLine(viewPoint))//点在线段所在直线上
// {
// if (((viewPoint.X >= this.startPoint.X && viewPoint.X <= this.endPoint.X) || (viewPoint.X <= this.startPoint.X && viewPoint.X >= this.endPoint.X)) &&
// ((viewPoint.Y >= this.startPoint.Y && viewPoint.Y <= this.endPoint.Y) || (viewPoint.Y <= this.startPoint.Y && viewPoint.Y >= this.endPoint.Y)) &&
// ((viewPoint.Z >= this.startPoint.Z && viewPoint.Z <= this.endPoint.Z) || (viewPoint.Z <= this.startPoint.Z && viewPoint.Z >= this.endPoint.Z)))
// { return true; }
// }
// return false;
if (viewPoint.equal(this.startPoint) || viewPoint.equal(this.endPoint))
{
return(true);
}
SpectVector vectorFromStartPointToViewPoint = new SpectVector(this.startPoint, viewPoint);
SpectVector vectorFromViewPointToEndPoint = new SpectVector(viewPoint, this.endPoint);
SpectVector vectorFromEndPointToViewPoint = new SpectVector(this.endPoint, viewPoint);
SpectVector vectorFromViewPointToStartPoint = new SpectVector(viewPoint, this.startPoint);
if (vectorFromStartPointToViewPoint.IsParallelAndSamedirection(vectorFromViewPointToEndPoint) &&
vectorFromEndPointToViewPoint.IsParallelAndSamedirection(vectorFromViewPointToStartPoint))
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 获取三角面的面积
/// </summary>
public double GetTriangleArea()
{
SpectVector Vab = new SpectVector(this.vertices[0], this.vertices[1]);
SpectVector Vac = new SpectVector(this.vertices[0], this.vertices[2]);
return(0.5 * Vab.Mag() * Vac.Mag() * Math.Sin(Vab.GetPhaseOfVector(Vac) * Math.PI / 180));//三角面ABC的面积
}
/// <summary>
/// 求射线与四边形的交点
/// </summary>
/// <param oneRay="viewPoint">射线</param>
/// <returns>返回射线与四边形的交点，若无交点则返回null</returns>
public Point GetCrossPointWithRay(RayInfo oneRay)
{
SpectVector unitVector = this.normalVector.GetNormalizationVector();//归一化
double temp = oneRay.RayVector.DotMultiplied(unitVector);
if (Math.Abs(temp) < 0.00001)//如果向量和平面平行则返回null
{
return(null);
}
else
{
double TriD = unitVector.a * this.vertices[0].X + unitVector.b * this.vertices[0].Y + unitVector.c * this.vertices[0].Z;
double temp1 = unitVector.a * oneRay.Origin.X + unitVector.b * oneRay.Origin.Y + unitVector.c * oneRay.Origin.Z - TriD;
double t = -temp1 / temp;
Point tempPoint = new Point(oneRay.RayVector.a * t + oneRay.Origin.X, oneRay.RayVector.b * t + oneRay.Origin.Y, oneRay.RayVector.c * t + oneRay.Origin.Z);
if (!oneRay.RayVector.IsParallelAndSamedirection(new SpectVector(oneRay.Origin, tempPoint)))
{
return(null);
}
if (this.JudgeIfPointInFace(tempPoint))
{
return(tempPoint);
}
else
{
return(null);//如果求出的交点不在三角面内，则返回空
}
}
}
//求得电场的垂直分量
public static Plural GetVerticalE(EField e, SpectVector k, SpectVector l) //k为射线传播方向，l为反射中的反射面的法向量或绕射中的与棱平行的向量
{
SpectVector n = SpectVector.VectorCrossMultiply(k, l);
Plural p = SpectVector.VectorDotMultiply(e, n);
return(p);
}
/// <summary>
///获得平面的法向量
/// </summary>
public SpectVector GetNormalVector()
{
SpectVector vector12 = new SpectVector(this.vertices[0], this.vertices[1]);
SpectVector vector13 = new SpectVector(this.vertices[0], this.vertices[2]);
return(vector12.CrossMultiplied(vector13));
}
/// <summary>
///复数向量与矢量的点乘运算
/// </summary>
public static Plural VectorDotMultiply(EField e, SpectVector l)
{
Plural p = new Plural();
p.Re = e.X.Re * l.a + e.Y.Re * l.b + e.Z.Re * l.c;
p.Im = e.X.Im * l.a + e.Y.Im * l.b + e.Z.Im * l.c;
return(p);
}
public SpaceFace(Point facePoint, SpectVector normalVector, FaceType faceStyle, FaceID faceID, Material material, int materialNumber)
: this(facePoint, normalVector)
{
this.faceStyle = faceStyle;
this.faceID = faceID;
this.material = material;
this.materialNumber = materialNumber;
}
//求得电场的水平分量
public static Plural GetHorizonalE(EField e, SpectVector k, SpectVector l)
{
SpectVector n = SpectVector.VectorCrossMultiply(k, l); //入射面的法向量
SpectVector m = SpectVector.VectorCrossMultiply(k, n);
Plural p = SpectVector.VectorDotMultiply(e, m);
return(p);
}
/// <summary>
///求异面直线公垂线在该直线上的垂足
/// </summary>
public Point GetFootPointWithSkewLine(RayInfo otherRay)
{
SpectVector verticalVector = this.RayVector.CrossMultiplied(otherRay.RayVector);//求两条异面直线的公垂线的向量
Face viewFace = new SpaceFace(this.Origin, this.RayVector.CrossMultiplied(verticalVector));
Point crossPoint = otherRay.GetCrossPointBetweenStraightLineAndFace(viewFace);
return(this.getDropFoot(crossPoint));
}
//求得电场的水平分量
//调用方法：thisEfield.GetVerticalE(k,l)
public Plural GetHorizonalE(SpectVector k, SpectVector l)
{
SpectVector n = k.CrossMultiplied(l); //入射面的法向量
SpectVector m = k.CrossMultiplied(n).GetNormalizationVector();
Plural p = m.DotMultiplied(this);
return(p);
}
/// <summary>
///复数与矢量的点乘运算
/// </summary>
public static EField VectorDotMultiply(Plural p, SpectVector l)
{
Plural X = new Plural(l.a * p.Re, l.a * p.Im);
Plural Y = new Plural(l.b * p.Re, l.b * p.Im);
Plural Z = new Plural(l.c * p.Re, l.c * p.Im);
EField e = new EField(X, Y, Z);
return(e);
}
/// <summary>
///求平面面方程Ax+By+Cz+D=0的四个系数A,B,C,D
/// </summary>
public double[] GetFaceEquationFactor()
{
double[] para = new double[4];
SpectVector unitVector = this.normalVector.GetNormalizationVector();
para[0] = unitVector.a;
para[1] = unitVector.b;
para[2] = unitVector.c;
para[3] = -(unitVector.a * this.vertices[0].X + unitVector.b * this.vertices[0].Y + unitVector.c * this.vertices[0].Z);
return(para);
}
/// <summary>
///判断两个向量在XY平面的投影是否平行且同向
/// </summary>
public bool IsParallelAndSamedirectionInXYPlane(SpectVector linevector)
{
double temp = (linevector.a * a + linevector.b * b) / (GetMagInXY() * linevector.GetMagInXY());
if (Math.Abs(temp - 1) <= 0.00000001)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
///判断两个向量是否平行
/// </summary>
public bool IsParallel(SpectVector linevector)
{
double temp = (linevector.a * a + linevector.b * b + linevector.c * c) / (Mag() * linevector.Mag());
if (Math.Abs(temp - 1) <= 0.00000001 || Math.Abs(temp + 1) <= 0.00000001)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
///判断两个向量是否垂直
/// </summary>
public bool IsVertical(SpectVector linevector)
{
double temp = linevector.a * a + linevector.b * b + linevector.c * c;
if (Math.Abs(temp) <= 0.00000001)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
///求直线与平面的夹角
/// </summary>
/// <param line="face">平面</param>
/// <returns>直线与平面的夹角</returns>
public double GetAngleWithFace(Face face)
{
SpectVector normalVector = face.GetNormalVector(); //获得平面的法向量
double crossAngle = this.RayVector.GetPhaseOfVector(normalVector); //获得射线与法向量的夹角
if ((crossAngle <= 90) && (0 < crossAngle))
{
return(90 - crossAngle);
}
else
{
return(crossAngle - 90);
}
}
/// <summary>
///求射线打到一个平面后得到的反射射线
/// </summary>
/// <param name="reflectionFace">反射面</param>
/// <returns>反射射线</returns>
public RayInfo GetReflectionRay(Face reflectionFace)
{
Point crossPoint = this.GetCrossPointBetweenStraightLineAndFace(reflectionFace);
if (crossPoint == null)
{
return(null);
}
else
{
Point mirrorPoint = this.Origin.GetMirrorPoint(reflectionFace);
SpectVector vector = new SpectVector(mirrorPoint, crossPoint);
return(new RayInfo(crossPoint, vector));
}
}
/// <summary>
///求两条异面直线的距离
/// </summary>
public double GetDistanceOfNonUniplanarRays(RayInfo otherRay)
{
if (this.Origin.equal(otherRay.Origin) || this.RayVector.IsParallel(otherRay.RayVector))//两射线共起点或平行时用此方法无法计算，且不符合条件
{
return(0);
}
SpectVector verticalLine = SpectVector.VectorCrossMultiply(this.RayVector, otherRay.RayVector);
double thi = verticalLine.GetPhaseOfVector(new SpectVector(this.Origin, otherRay.Origin));
if (thi > 90)
{
thi = 180 - thi;
}
return(this.Origin.GetDistance(otherRay.Origin) * Math.Cos(thi * Math.PI / 180));
}