rasterZoneAnalyzer: Recognizes zones in the raster matrix and return a list of...

In fasteraster: Raster Image Processing and Vector Recognition

Description

Takes a raster matrix and recognize zones exactly as the raster2vector function does. However does not return polygon vectors, but weight and center of mass for each polygone (or so called zone).

Usage

rasterZoneAnalyzer(raster, from = 0, to = 1, step = 0.1)

Arguments

raster	input matrix of numeric values.
from	lower (greater than) margin for recognizable zone values.
to	upper (less than or equal) margin.
step	values gradient.

Value

matrix of zones by four values: fill (ceiling values), weight (in cells), x and y of the mass center.

Examples

library(datasets)
rasterZoneAnalyzer(volcano, 120, 200, 20)

Example output

     [,1] [,2]     [,3]     [,4]
[1,]  200  174 20.25287 31.85632
[2,]  200    4 27.00000 45.25000
[3,]  160   55 29.69091 34.16364
[4,]  180  693 30.43290 31.93218
[5,]  160  854 41.15808 27.53513
[6,]  140 1093 42.31473 27.54163

fasteraster documentation built on May 2, 2019, 3:35 p.m.