public float [] SolveVerbose(float [,] LL, float [,] UU, float [] rhs)
{
float [] yy = FwdsSubst(LL, rhs);
Console.Write("After fwds subst="); MatrixLib.printa(yy);
float [] xx = BackSubst(UU, yy);
Console.Write("After back subst="); MatrixLib.printa(xx);
return(xx); // Return the final solution.
}
// Decompose to Lower and Upper. Upper is done in-place in G.
public void DecomposeVerbose(float [,] LL, float [,] G)
{
Console.WriteLine("L/U Decomposition - single-threaded version.\n");
Console.WriteLine("Initial Coefficient Matrix Pre L/U Decomposition:\n"); MatrixLib.printa(G);
LUdecompose(LL, G, true);
Console.WriteLine("UU="); MatrixLib.printa(G);
Console.WriteLine("LL="); MatrixLib.printa(LL);
Console.WriteLine("Recombine LL and RR: Should result in the original:"); MatrixLib.mpx(tmp, LL, G); MatrixLib.printa(tmp);
}
public void Roll(float radians)
{
// Look, Right and Up
Matrix4 m = Matrix4.CreateFromAxisAngle(Look, radians);
// Transform vector by matrix, project result back into w = 1.0f
Right = MatrixLib.Transform(m, Right); // TransformVectorCoord
Up = MatrixLib.Transform(m, Up);
}
//private float pitchAngle = 0f, yawAngle = 0f;
public void Pitch(float radians)
{
//angle = MathHelpers.ClampCircular(angle, 0f, MathHelpers.PI2);
// Right
Matrix4 m = Matrix4.CreateFromAxisAngle(Right, radians);
// Transform vector by matrix, project result back into w = 1.0f
Right = MatrixLib.Transform(m, Up); // TransformVectorCoord
Up = MatrixLib.Transform(m, Look);
}
public static void Main()
{
runstate = 2; // use codepoints
Console.WriteLine("Kiwi Demo - L/U decomposition");
SimuSolve ssolve = new SimuSolve(problemSize);
Kiwi.KppMark("Start");
generate_example_coefficients();
runstate = 3; // use codepoints
MatrixLib.copy2d(UUtop, coefficients);
runstate = 4; // use codepoints
ssolve.DecomposeVerbose(LLtop, UUtop);
runstate = 5; // use codepoints
Console.WriteLine("Kiwi L/U demo - coefficient matrix decomposed.");
Kiwi.KppMark("Coefficients Created");
for (int test = 0; test < 3; test++)
{
runstate = 10 + test; // use codepoints
Console.WriteLine("\nKiwi L/U demo - L/U decomposition test with rhs no {0}.", test);
generate_example_rhs(test, true);
float [] sol = ssolve.SolveVerbose(LLtop, UUtop, target_rhs);
// Now see if it works as a solution
Console.Write("Substitute back - rhs given by solution is: y=");
MatrixLib.printa(MatrixLib.mpx(res, coefficients, sol));
runstate = 9;
for (int i = 0; i < res.Length; i++)
{
out_idx = i;
out_data = res[i];
}
}
runstate = 20;
Kiwi.KppMark("ThreeTestsFinished");
Console.WriteLine("Kiwi L/U demo - L/U decomposition demo complete at {0}.", Kiwi.tnow);
}
private void CalculateDistanceMatrix()
{
this.distanceMatrix = MatrixLib.CalculateDistanceMatrix(this._points, layer, MaxDistance);
PrintMatrix(this.distanceMatrix, "dist.txt");
}
