public double get_b()
{
if (true == Slope.isVertical())
{
return(Double.NaN);
}
return(this.StartPoint.z.Value - (StartPoint.x * Slope.getAsSlope() * this.advanceDirection));
}
public double?getElevationAlong(double X)
{
if (true == Slope.isVertical())
{
return(null);
}
double horizDistance = X - StartPoint.x;
if (Math.Sign(horizDistance) != Math.Sign(Slope.getAsSlope()))
{
return(null);
}
return((double?)
((horizDistance * Slope.getAsSlope()) + this.StartPoint.z));
}