测绘通报 ›› 2018, Vol. 0 ›› Issue (3): 55-59,70.doi: 10.13474/j.cnki.11-2246.2018.0075

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A Generating Method for Weighted Voronoi Diagram Based on Reilly's Law

KANG Shun1, QU Shanshan2   

  1. 1. College of Geoscience and Surveying Engineering, China University of Mining and Technology(Beijing), Beijing 100083, China;
    2. School of Geosciences and Info-physics, Central South University, Changsha 410083, China
  • Received:2017-06-20 Online:2018-03-25 Published:2018-04-03

Abstract:

Voronoi diagram and its generation are quite important in computational geometry.As to the limitation of weight defined and the generating efficiency for raster-based Voronoi diagram,taking the comprehensive conditions of generating grid scale weight and raster distance transformation weight into consideration,from multi-distance map angle,a raster-based weighted Voronoi diagram,i.e.Reilly Voronoi diagram (RVD) is proposed by map algebra method based on Reilly's law of retail gravitation,by which it avoids the multi-computing between background grids and generating grids in single map.Through experiment verification,it has been proved to be a feasible way for generating raster-based Voronoi diagram meanwhile improve and perfect the traditional weight factor and need not multi-computing between background grids and generating cell to generate spatial Voronoi tessellations.

Key words: Voronoi, Reilly's law, scale weight, distance transform weight, map algebra

CLC Number: