math.geom2d
Interfaces 
GeometricObject2D
Shape2D
ShapeSet2D
Classes 
AffineTransform2D
Angle2D
Box2D
Point2D
ShapeArray2D
Vector2D
Exceptions 
ColinearPoints2DException
NonInvertibleTransform2DException
UnboundedBox2DException
UnboundedShape2DException