private static List<EdgeAggregator> InstantiateAngles(Angle angle1, Angle angle2)
{
List<EdgeAggregator> newGrounded = new List<EdgeAggregator>();
// An angle may have multiple names
if (angle1.Equates(angle2)) return newGrounded;
if (!angle1.GetVertex().Equals(angle2.GetVertex())) return newGrounded;
// Determine the shared segment if we have an adjacent situation
Segment shared = angle1.IsAdjacentTo(angle2);
if (shared == null) return newGrounded;
//
// If we combine these two angles, the result is a third angle, which, when measured,
// would be less than 180; this is contradictory since we measuare angles greedily and no circular angle is measured as > 180
//
if (angle1.measure + angle2.measure > 180) return newGrounded;
// Angle(A, B, C), Angle(C, B, D) -> Angle(A, B, C) + Angle(C, B, D) = Angle(A, B, D)
Point vertex = angle1.GetVertex();
Point exteriorPt1 = angle2.OtherPoint(shared);
Point exteriorPt2 = angle1.OtherPoint(shared);
Angle newAngle = new Angle(exteriorPt1, vertex, exteriorPt2);
Addition sum = new Addition(angle1, angle2);
GeometricAngleEquation geoAngEq = new GeometricAngleEquation(sum, newAngle);
geoAngEq.MakeAxiomatic(); // This is an axiomatic equation
// For hypergraph construction
List<GroundedClause> antecedent = new List<GroundedClause>();
antecedent.Add(angle1);
antecedent.Add(angle2);
newGrounded.Add(new EdgeAggregator(antecedent, geoAngEq, annotation));
return newGrounded;
}
private static List<EdgeAggregator> CheckAndGeneratePerpendicularImplyCongruentAdjacent(Perpendicular perp, Angle angle1, Angle angle2)
{
List<EdgeAggregator> newGrounded = new List<EdgeAggregator>();
if (!Utilities.CompareValues(angle1.measure + angle2.measure, 90)) return newGrounded;
// The perpendicular intersection must occur at the same vertex of both angles (we only need check one).
if (!(angle1.GetVertex().Equals(perp.intersect) && angle2.GetVertex().Equals(perp.intersect))) return newGrounded;
// Are the angles adjacent?
Segment sharedRay = angle1.IsAdjacentTo(angle2);
if (sharedRay == null) return newGrounded;
// Do the non-shared rays for both angles align with the segments defined by the perpendicular intersection?
if (!perp.DefinesBothRays(angle1.OtherRayEquates(sharedRay), angle2.OtherRayEquates(sharedRay))) return newGrounded;
//
// Now we have perpendicular -> complementary angles scenario
//
Complementary cas = new Complementary(angle1, angle2);
// Construct hyperedge
List<GroundedClause> antecedent = new List<GroundedClause>();
antecedent.Add(perp);
antecedent.Add(angle1);
antecedent.Add(angle2);
newGrounded.Add(new EdgeAggregator(antecedent, cas, annotation));
return newGrounded;
}
