Compute Areas of Tiles in Dirichlet Tessellation
Calculates the area of each tile in the Dirichlet-Voronoi tessellation of a point pattern.
dirichletAreas(X)
X |
Point pattern (object of class |
This is an efficient algorithm to calculate the areas of the tiles in the Dirichlet-Voronoi tessellation.
If the window of X is a binary pixel mask, the
tile areas are computed by counting pixels. Otherwise the
areas are computed exactly using analytic geometry.
If any points of X are duplicated, the duplicates will
have tile area zero.
Numeric vector with one entry for each point of X.
Adrian Baddeley Adrian.Baddeley@curtin.edu.au
Rolf Turner r.turner@auckland.ac.nz
and Ege Rubak rubak@math.aau.dk
aa <- dirichletAreas(cells)
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