private List<KeyValuePair<Segment, double>> CalcSidesHypotenuseUnknown(RightTriangle tri, Angle knownAngle, double knownAngleVal, Segment knownSide, double sideVal)
{
List<KeyValuePair<Segment, double>> pairs = new List<KeyValuePair<Segment, double>>();
Segment hypotenuse = tri.GetHypotenuse();
Segment oppSideOfAngle = tri.GetOppositeSide(knownAngle);
Segment adjacent = knownAngle.OtherRay(hypotenuse);
if (oppSideOfAngle.StructurallyEquals(knownSide))
{
double adjVal = sideVal / Math.Tan(Angle.toRadians(knownAngleVal));
pairs.Add(new KeyValuePair<Segment, double>(adjacent, adjVal));
pairs.Add(new KeyValuePair<Segment, double>(hypotenuse, Math.Sqrt(sideVal * sideVal + adjVal * adjVal)));
}
else if (adjacent.StructurallyEquals(knownSide))
{
double oppVal = sideVal * Math.Tan(Angle.toRadians(knownAngleVal));
pairs.Add(new KeyValuePair<Segment, double>(oppSideOfAngle, oppVal));
pairs.Add(new KeyValuePair<Segment, double>(hypotenuse, Math.Sqrt(sideVal * sideVal + oppVal * oppVal)));
}
return pairs;
}
private List<KeyValuePair<Segment, double>> CalcSides(RightTriangle tri, Angle rightAngle, Angle knownAngle, double knownAngleVal, Segment knownSeg, double knownSegVal)
{
//
// Determine the nature of the known Segment w.r.t. to the known angle.
//
Segment hypotenuse = tri.GetHypotenuse();
// Hypotenuse known
if (knownSeg.StructurallyEquals(hypotenuse))
{
return CalcSidesHypotenuseKnown(tri, knownAngle, knownAngleVal, hypotenuse, knownSegVal);
}
else
{
return CalcSidesHypotenuseUnknown(tri, knownAngle, knownAngleVal, knownSeg, knownSegVal);
}
}