Compute the fraction of raster cells covered by a polygon
Compute the fraction of raster cells covered by a polygon
## S4 method for signature 'RasterLayer,sf' coverage_fraction(x, y, crop = FALSE) ## S4 method for signature 'RasterLayer,sfc_MULTIPOLYGON' coverage_fraction(x, y, crop) ## S4 method for signature 'RasterLayer,sfc_POLYGON' coverage_fraction(x, y, crop)
x |
a (possibly empty) |
y |
a |
crop |
if |
a list with a RasterLayer for each feature in y.
Values of the raster represent the fraction of each
cell in x that is covered by y.
rast <- raster::raster(matrix(1:100, ncol=10), xmn=0, ymn=0, xmx=10, ymx=10)
poly <- sf::st_as_sfc('POLYGON ((2 2, 7 6, 4 9, 2 2))')
cov_frac <- coverage_fraction(rast, poly)[[1]]Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.