double m30, double m31, double

      double m30, double m31, double m32, double m33)
      {
            M[0, 0] = m00;    M[0, 1] = m01;
            M[0, 2] = m02;    M[0, 3] = m03;
            M[1, 0] = m10;    M[1, 1] = m11;
            M[1, 2] = m12;    M[1, 3] = m13;
            M[2, 0] = m20;    M[2, 1] = m21;
            M[2, 2] = m22;    M[2, 3] = m23;
            M[3, 0] = m30;    M[3, 1] = m31;
            M[3, 2] = m32;    M[3, 3] = m33;
      }
      //Ìåòîä äëÿ óìíîæåíèÿ ìàòðèöû íà ìàòðèöó ñïðàâà:
      public myClassMatrix3D TimesMatrix(
            myClassMatrix3D right_matrix)
      {
            myClassMatrix3D result = new myClassMatrix3D();
            double value; int i, j, k;
            for (i = 0; i <= 3; i++)
            {
                  for (j = 0; j <= 3; j++)
                  {
                        value = 0;
                        for (k = 0; k <= 3; k++)
                        {
                             value = value + M[i, k] *
                                   right_matrix.M[k, j];
                        }
                        result.M[i, j] = value;
                  }
            }
            return result;
      }
      //Ìåòîä äëÿ ïîâîðîòà âîêðóã îñè z
      //äî òî÷êè â y-z ïëîñêîñòè:
      public static myClassMatrix3D GetZRotPointToYZ(
            myClassPoint3D pt)
      {
            double R = Math.Sqrt(
                  pt.orig_coord[0] * pt.orig_coord[0] +
                  pt.orig_coord[1] * pt.orig_coord[1]);
            double stheta = pt.orig_coord[0] / R;
            double ctheta = pt.orig_coord[1] / R;
            return new myClassMatrix3D(
            ctheta, stheta, 0, 0,
            -stheta, ctheta, 0, 0,
            0, 0, 1, 0,
            0, 0, 0, 1);
      }
      //Ìåòîä äëÿ ïîâîðîòà âîêðóã îñè x äî òî÷êè íà îñè z:
      public static myClassMatrix3D
      GetXRotPointToZ(myClassPoint3D pt)
      {
            double R1 = Math.Sqrt(
                  pt.orig_coord[0] * pt.orig_coord[0] +
                  pt.orig_coord[1] * pt.orig_coord[1]);
            double R2 = Math.Sqrt(
                  pt.orig_coord[0] * pt.orig_coord[0] +
                  pt.orig_coord[1] * pt.orig_coord[1] +
                  pt.orig_coord[2] * pt.orig_coord[2]);
            double sphi = -R1 / R1;
            double cphi = -pt.orig_coord[2] / R2;
            return new myClassMatrix3D(
            1, 0, 0, 0,
            0, cphi, sphi, 0,
            0, -sphi, cphi, 0,
            0, 0, 0, 1);
      }
} //Êîíåö êëàññà class myClassMatrix3D.

Ñîäåðæàíèå  Íàçàä  Âïåðåä

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