/// <summary>
/// Get the curvature for the current section index in a vector track node.
/// </summary>
/// <param name="vectorNode">The vector track node</param>
/// <param name="tvsi">The tracknode vector section index in the given verctor track node</param>
/// <param name="isForward">Is the path in the same direction as the vector track node?</param>
private float GetCurvature(TrVectorNode vectorNode, int tvsi, bool isForward)
{
TrVectorSection tvs = vectorNode.TrVectorSections[tvsi];
TrackSection trackSection = tsectionDat.TrackSections.Get(tvs.SectionIndex);
float curvature = 0;
if (trackSection != null) // if it is null, something is wrong but we do not want to crash
{
SectionCurve thisCurve = trackSection.SectionCurve;
if (thisCurve != null)
{
curvature = Math.Sign(thisCurve.Angle) / thisCurve.Radius;
if (!isForward)
{
curvature *= -1;
}
}
}
return(curvature);
}
//check TDB for long curves and determine each section's position/elev in the curve
public SuperElevation(Simulator simulator)
{
Curves = new List <List <TrVectorSection> >();
Sections = new Dictionary <int, List <TrVectorSection> >();
MaximumAllowedM = 0.07f + simulator.UseSuperElevation / 100f;//max allowed elevation controlled by user setting
var SectionList = new List <TrVectorSection>();
foreach (var node in simulator.TDB.TrackDB.TrackNodes)
{
if (node == null || node.TrJunctionNode != null || node.TrEndNode == true)
{
continue;
}
var StartCurve = false; var CurveDir = 0; var Len = 0.0f;
SectionList.Clear();
SectionCurve theCurve = null;
int i = 0; int count = node.TrVectorNode.TrVectorSections.Length;
foreach (var section in node.TrVectorNode.TrVectorSections)//loop all curves
{
i++;
var sec = simulator.TSectionDat.TrackSections.Get(section.SectionIndex);
if (sec == null)
{
continue;
}
theCurve = sec.SectionCurve;
if (sec.SectionSize != null && Math.Abs(sec.SectionSize.Width - simulator.SuperElevationGauge) > 0.2)
{
continue; //the main route has a gauge different than mine
}
if (theCurve != null && !theCurve.Angle.AlmostEqual(0f, 0.01f)) //a good curve
{
if (i == 1 || i == count)
{
//if (theCurve.Radius * (float)Math.Abs(theCurve.Angle * 0.0174) < 15f) continue;
} //do not want the first and last piece of short curved track to be in the curve (they connected to switches)
if (StartCurve == false) //we are beginning a curve
{
StartCurve = true; CurveDir = Math.Sign(sec.SectionCurve.Angle);
Len = 0f;
}
else if (CurveDir != Math.Sign(sec.SectionCurve.Angle)) //we are in curve, but bending different dir
{
MarkSections(simulator, SectionList, Len); //treat the sections encountered so far, then restart with other dir
CurveDir = Math.Sign(sec.SectionCurve.Angle);
SectionList.Clear();
Len = 0f; //StartCurve remains true as we are still in a curve
}
Len += theCurve.Radius * (float)Math.Abs(theCurve.Angle * 0.0174); //0.0174=3.14/180
SectionList.Add(section);
}
else //meet a straight line
{
if (StartCurve == true) //we are in a curve, need to finish
{
MarkSections(simulator, SectionList, Len);
Len = 0f;
SectionList.Clear();
}
StartCurve = false;
}
}
if (StartCurve == true) // we are in a curve after looking at every section
{
MarkSections(simulator, SectionList, Len);
}
Len = 0f; StartCurve = false;
SectionList.Clear();
}
}
public AESectionCurve(SectionCurve sectionCurve)
{
Radius = sectionCurve.Radius;
Angle = sectionCurve.Angle;
}
