//
// Creates a Topped F-Shape
// top
// oppSide __________ <--- Stands on
// |
// |_____ off <--- Stands on
// |
// |
// bottom
//
// Returns: <bottom, off>
private static List<EdgeAggregator> GenerateToppedFShape(Parallel parallel, Intersection inter1, Intersection inter2, Intersection bottom, Point off)
{
List<EdgeAggregator> newGrounded = new List<EdgeAggregator>();
Intersection top = inter1.Equals(bottom) ? inter2 : inter1;
// Determine the side of the top intersection needed for the angle
Segment transversal = inter1.AcquireTransversal(inter2);
Segment parallelTop = top.OtherSegment(transversal);
Segment parallelBottom = bottom.OtherSegment(transversal);
Segment crossingTester = new Segment(off, parallelTop.Point1);
Point intersection = transversal.FindIntersection(crossingTester);
Point oppSide = transversal.PointLiesOnAndBetweenEndpoints(intersection) ? parallelTop.Point1 : parallelTop.Point2;
//
// Generate the new congruence
//
List<CongruentAngles> newAngleRelations = new List<CongruentAngles>();
GeometricCongruentAngles gca = new GeometricCongruentAngles(new Angle(off, bottom.intersect, top.intersect),
new Angle(oppSide, top.intersect, bottom.intersect));
newAngleRelations.Add(gca);
return MakeRelations(newAngleRelations, parallel, inter1, inter2);
}
//
// Creates a shape like a crazy person flying
//
// top top
// | |
// larger |_____|___ off
// | |
// | |
//
// Similar to H-shape with an extended point
// Returns the 'larger' intersection that contains the point: off
private static List<EdgeAggregator> InstantiateFlyingIntersection(Parallel parallel, Intersection inter1, Intersection inter2, Intersection larger, Point off)
{
List<EdgeAggregator> newGrounded = new List<EdgeAggregator>();
Intersection smallerInter = inter1.Equals(larger) ? inter2 : inter1;
Segment transversal = inter1.AcquireTransversal(inter2);
Segment parallel1 = inter1.OtherSegment(transversal);
Segment parallel2 = inter2.OtherSegment(transversal);
Point largerTop = parallel1.Point1;
Point largerBottom = parallel1.Point2;
Point otherTop = null;
Point otherBottom = null;
Segment crossingTester = new Segment(parallel1.Point1, parallel2.Point1);
Point intersection = transversal.FindIntersection(crossingTester);
// opposite sides
if (transversal.PointLiesOnAndBetweenEndpoints(intersection))
{
otherTop = parallel2.Point2;
otherBottom = parallel2.Point1;
}
// same sides
else
{
otherTop = parallel2.Point1;
otherBottom = parallel2.Point2;
}
//
// Generate the new congruence
//
List<CongruentAngles> newAngleRelations = new List<CongruentAngles>();
GeometricCongruentAngles gca1 = new GeometricCongruentAngles(new Angle(off, smallerInter.intersect, otherTop),
new Angle(smallerInter.intersect, larger.intersect, largerTop));
newAngleRelations.Add(gca1);
GeometricCongruentAngles gca2 = new GeometricCongruentAngles(new Angle(off, smallerInter.intersect, otherBottom),
new Angle(smallerInter.intersect, larger.intersect, largerBottom));
newAngleRelations.Add(gca2);
return MakeRelations(newAngleRelations, parallel, inter1, inter2);
}