Unit 186 - The Polygon Overlay Operation

Table of Contents

    Advanced Organizer Body of unit
    1. Introduction
      1. Traditions of polygon overlay use
        1. Landscape planning
        2. Set theoretic
        3. Area interpolation
    2. General concepts of polygon overlay operations
      1. Operations requiring polygon overlay
        1. Windowing
        2. Buffering
        3. Planar enforcement
    3. Overlay algorithms
      1. Example of the overlay operation
      2. A more complex overlay example
    4. Computational complexity
    5. Intersection problems
      1. Adjacent lines
      2. Sliver polygons
        1. Removing slivers during overlay
        2. Removing slivers after overlay
    6. Discussion and exam questions
    7. References