# Union and Intersection - m

Cubic Bezier and Polygon, cubic Bezier and Rectangle, circle and Circle, circle and Ellipse. Circle and Line, circle and Polygon, circle and Rectangle, ellipse and Ellipse, ellipse and Line. Ellipse and Polygon, ellipse and Rectangle, line and Line, line and Polygon, line and Rectangle.
Incorrect intersections are reported when the control points use small values. Further details for manipulating the shapes are available in the GUI Shapes Editors. Quadratic Bezier and Quadratic Bezier, quadratic Bezier and Cubic Bezier, quadratic Bezier and Circle.
This section shows examples of the intersection routines written for this site's 2D Geometry Library. Each link allows you to manipulate the shapes listed. All intersections between the two shapes are updated as you manipulate the shapes.
Quadratic Bezier and Ellipse, quadratic Bezier and Line, quadratic Bezier and Polygon, quadratic Bezier and Rectangle. Cubic Bezier and Cubic Bezier, cubic Bezier and Circle, cubic Bezier and Ellipse, cubic Bezier and Line.
Relative Path and Polygon, relative Path and Rectangle.
Some intersections display additional information when the shapes do not intersect. As an example, the circle-circle intersection determines if one circle is contained by the other circle. It is important to note there are known problems with the Bezier-Bezier (any combination of quadratric and cubic) intersection routines.
Polygon and Polygon, polygon and Rectangle, rectangle and Rectangle, absolute Path and Ellipse, absolute Path and Line. Absolute Path and Polygon, absolute Path and Rectangle, relative Path and Ellipse, relative Path and Line.