Handouts: Timothy Chan's O(n log h) algorithm handout; Melkman's convex hull algorithm (online)

9/18/08: Conclude convex hull discussion; Geometric Primitives

See the powerpoint slides.

  • Remarks about CH in higher dimensions: overview of methods of gift-wrapping, divide-and-conquer. Demo of applet showing 3D CH computation.
  • Paradigms summary: algorithmic methods, hot topics, current trends in CG
  • Discussion of primitive (predicate) computations: cross products, area of triangles and polygons, "Left", "LeftOn", "Between", "IntersectProp", etc. See Chapter 1 of O'Rourke, from which I made SLIDES