//
// Given known values, can the third side be determined: isosceles right triangle (with base known)
//
public List<KeyValuePair<Segment, double>> IsoscelesRightApplies(Area_Based_Analyses.KnownMeasurementsAggregator known)
{
List<KeyValuePair<Segment, double>> pairs = new List<KeyValuePair<Segment, double>>();
if (!this.provenIsosceles || !this.provenRight) return pairs;
//
// Make an isosceles triangle to acquire segments.
//
IsoscelesTriangle isoTri = new IsoscelesTriangle(this);
Segment baseSeg = isoTri.baseSegment;
double baseVal = known.GetSegmentLength(baseSeg);
if (baseVal < 0) return pairs;
// Compute the value of the other sides.
double otherSideVal = Math.Sqrt(Math.Pow(baseVal, 2) / 2.0);
// Get the other sides.
Segment otherSide1, otherSide2;
isoTri.GetOtherSides(baseSeg, out otherSide1, out otherSide2);
if (!Utilities.CompareValues(otherSide1.Length, otherSideVal))
{
System.Diagnostics.Debug.WriteLine("Error in known measurements.");
}
if (!Utilities.CompareValues(otherSide2.Length, otherSideVal))
{
System.Diagnostics.Debug.WriteLine("Error in known measurements.");
}
pairs.Add(new KeyValuePair<Segment,double>(otherSide1, otherSideVal));
pairs.Add(new KeyValuePair<Segment, double>(otherSide2, otherSideVal));
return pairs;
}
//
// Given known values, can the third side be determined: isosceles right triangle (with base known)
//
public List<KeyValuePair<Segment, double>> CalculateBaseOfIsosceles(Area_Based_Analyses.KnownMeasurementsAggregator known)
{
List<KeyValuePair<Segment, double>> pairs = new List<KeyValuePair<Segment, double>>();
if (!this.provenIsosceles || !(this is IsoscelesTriangle)) return pairs;
//
// Make an isosceles triangle to acquire segments.
//
IsoscelesTriangle isoTri = new IsoscelesTriangle(this);
Segment baseSeg = isoTri.baseSegment;
double baseVal = known.GetSegmentLength(baseSeg);
if (baseVal > 0) return pairs;
//
// Get the other sides.
//
Segment otherSide1, otherSide2;
isoTri.GetOtherSides(baseSeg, out otherSide1, out otherSide2);
// If we know 1 we should know the other, check anyway
double otherVal1 = known.GetSegmentLength(otherSide1);
double otherVal2 = known.GetSegmentLength(otherSide2);
if (otherVal1 < 0 && otherVal2 < 0) return pairs;
//
// Get the base angle.
//
double baseAngleVal = known.GetAngleMeasure(isoTri.baseAngleOppositeLeg1);
if (baseAngleVal < 0) baseAngleVal = known.GetAngleMeasure(isoTri.baseAngleOppositeLeg2);
if (baseAngleVal < 0) return pairs;
//
// Compute the value of the base
//
double baseSideVal = 2.0 * otherVal1 * Math.Cos(Angle.toRadians(baseAngleVal));
pairs.Add(new KeyValuePair<Segment, double>(baseSeg, baseSideVal));
return pairs;
}