//
// Acquire the point that is opposite the given point w.r.t. to this line.
//
// x given
// |
// ----------------------------
// |
// y <-- opp returned
//
public Point GetReflectionPoint(Point pt)
{
Point ptOnLine = this.ProjectOnto(pt);
Segment perp = new Segment(pt, ptOnLine);
return((perp.GetOppositeSegment(ptOnLine)).OtherPoint(ptOnLine));
}
public static void MakeRightTriangles(Segment side, int length, out List <RightTriangle> tris)
{
tris = new List <RightTriangle>();
//
// 1
//
Segment perp = side.GetPerpendicularByLength(side.Point1, length);
tris.Add(new RightTriangle(new Triangle(side.Point1, side.Point2, perp.OtherPoint(side.Point1))));
// 2
Segment oppPerp = perp.GetOppositeSegment(side.Point1);
tris.Add(new RightTriangle(new Triangle(side.Point1, side.Point2, oppPerp.OtherPoint(side.Point1))));
// 3
perp = side.GetPerpendicularByLength(side.Point2, length);
tris.Add(new RightTriangle(new Triangle(side.Point1, side.Point2, perp.OtherPoint(side.Point2))));
// 4
oppPerp = perp.GetOppositeSegment(side.Point2);
tris.Add(new RightTriangle(new Triangle(side.Point1, side.Point2, oppPerp.OtherPoint(side.Point2))));
}
public static void MakeRectangles(Segment side, double length, out Rectangle rect1, out Rectangle rect2)
{
//
// First rectangle
//
Segment adj1 = side.GetPerpendicularByLength(side.Point1, length);
Segment adj2 = side.GetPerpendicularByLength(side.Point2, length);
Segment oppSide = new Segment(adj1.OtherPoint(side.Point1), adj2.OtherPoint(side.Point2));
rect1 = new Rectangle(side, oppSide, adj1, adj2);
//
// Second rectangle
//
Segment otherAdj1 = adj1.GetOppositeSegment(side.Point1);
Segment otherAdj2 = adj2.GetOppositeSegment(side.Point2);
oppSide = new Segment(otherAdj1.OtherPoint(side.Point1), otherAdj2.OtherPoint(side.Point2));
rect2 = new Rectangle(side, oppSide, otherAdj1, otherAdj2);
}
//
// Acquire the point that is opposite the given point w.r.t. to this line.
//
// x given
// |
// ----------------------------
// |
// y <-- opp returned
//
public Point GetReflectionPoint(Point pt)
{
Point ptOnLine = this.ProjectOnto(pt);
Segment perp = new Segment(pt, ptOnLine);
return (perp.GetOppositeSegment(ptOnLine)).OtherPoint(ptOnLine);
}