/// <summary>
/// Transforms a point according to the affine transformation.
/// </summary>
/// <param name="inV">the input 2D point.</param>
/// <returns>the transformed point.</returns>
public SySal.BasicTypes.Vector2 Transform(SySal.BasicTypes.Vector2 inV)
{
SySal.BasicTypes.Vector2 v = new SySal.BasicTypes.Vector2();
v.X = MXX * (inV.X - RX) + MXY * (inV.Y - RY) + TX + RX;
v.Y = MYX * (inV.X - RX) + MYY * (inV.Y - RY) + TY + RY;
return(v);
}
/// <summary>
/// Deforms a vector using the linear deformation.
/// </summary>
/// <param name="inV">the input vector.</param>
/// <returns>the transformed vector.</returns>
public SySal.BasicTypes.Vector2 Deform(SySal.BasicTypes.Vector2 inV)
{
SySal.BasicTypes.Vector2 v = new SySal.BasicTypes.Vector2();
v.X = MXX * inV.X + MXY * inV.Y;
v.Y = MYX * inV.X + MYY * inV.Y;
return(v);
}
/// <summary>
/// Seeks the kink.
/// </summary>
/// <param name="segs">the array of segments to use.</param>
/// <param name="allowedkink">the number of entries must be equal to the number of segments minus 1, since differences matter; then, the kink is checked for segments whose corresponding entry is set to <c>true</c> in this array.</param>
protected void ComputeResult(SySal.TotalScan.Segment[] segs, bool[] allowedkink)
{
TransverseSlopeRMS = LongitudinalSlopeRMS = TransverseMaxDeltaSlopeRatio = LongitudinalMaxDeltaSlopeRatio = KinkDelta = -1.0;
KinkIndex = -1;
KinkDelta = -1.0;
int i;
int j = 0;
double rmst = 0.0, rmsl = 0.0;
for (i = 1; i < segs.Length; i++)
{
SySal.BasicTypes.Vector2 r = SlopeDiff(segs[i].Info.Slope, segs[i - 1].Info.Slope, segs[i].Info.Intercept.Z, segs[i - 1].Info.Intercept.Z);
if (r.X >= 0.0 && r.Y >= 0.0)
{
j++;
rmsl += r.X * r.X;
rmst += r.Y * r.Y;
}
}
if (j < 2)
{
return;
}
KinkDelta = 0.0;
double newr;
TransverseSlopeRMS = Math.Sqrt(rmst / j);
LongitudinalSlopeRMS = Math.Sqrt(rmsl / j);
if (allowedkink.Length != segs.Length - 1)
{
ExceptionMessage = "The number of segments and of kink search activation flags must be identical";
return;
}
if (allowedkink.Length < 3)
{
ExceptionMessage = "Kink search requires at least 3 segments.";
return;
}
for (i = 0; i < allowedkink.Length; i++)
{
if (allowedkink[i])
{
SySal.BasicTypes.Vector2 r = SlopeDiff(segs[i + 1].Info.Slope, segs[i].Info.Slope, segs[i + 1].Info.Intercept.Z, segs[i].Info.Intercept.Z);
if (r.X < 0.0 || r.Y < 0.0)
{
continue;
}
double rl = r.X / Math.Sqrt((rmsl - r.X * r.X) / (j - 1));
double rt = r.Y / Math.Sqrt((rmst - r.Y * r.Y) / (j - 1));
if ((newr = (rl * rl + rt * rt)) > KinkDelta)
{
KinkIndex = i;
TransverseMaxDeltaSlopeRatio = rt;
LongitudinalMaxDeltaSlopeRatio = rl;
KinkDelta = newr;
}
}
}
KinkDelta = Math.Sqrt(KinkDelta);
ExceptionMessage = null;
}