Spring 2000

Ileana Streinu

Convex Hulls in 2d

- Definition. Convex hull of a set of points. The planar case.
- Naive algorithms for convex hulls. Extreme points. Extreme edges. Complexity.
- Convex hull applet, 2d, animated - neat.
- Convex hull applet, another one.
- Break.
- Discussion of the next homework problem set 3. Cinderella assignement and machine shop alternative.
- Convex hull algorithms based on the sweep idea. Incremental algorithm. Rotational sweep: Graham's scan.
- Graham's scan applet.
- Next time, continue convex hull algorithms.

- Convex hull bibliography.
- Convex hull page at Stony Brook.
- Convex hull applet, 2d, animated - neat.
- Convex hull applet, another nice one.
- Graham's scan
- 3d convex hull applet.
- Clarkson code.

Last modified February 25, 2000.