This function reprojects a geotrellis raster data gt_RasterLayer
object to a new coordinate system. This function is similar to projectRaster.
# S4 method for gt_RasterLayer gt_aggregate(x, fact, fun = c("mean", "mode", "median", "max", "min")) # S4 method for gt_RasterLayer gt_disaggregate(x, fact, method = c("ngb", "bilinear")) gt_projectRaster(from, to, res, method) # S4 method for gt_RasterLayer,CRS gt_projectRaster(from, to, res, method = c("bilinear", "ngb")) # S4 method for gt_RasterLayer,gt_RasterLayer gt_projectRaster(from, to, method = c("bilinear", "ngb"))
character method used to compute values for the new gt_RasterLayer.
Either 'ngb' (nearest neighbor), which is useful for categorical variables, or 'bilinear'
(bilinear interpolation; the default value), which is appropriate for continuous variables.gt_RasterLayer object.gt_RasterLayer or CRS object with to reproject
from to.numeric resolution to reproject the data to. This is required when to
is a CRS object.gt_RasterLayer object.
Note that--unlike projectRaster--this function does not have
a to argument. Therefore users cannot specify a template projected raster to reproject
a project gt_RasterLayer and ensure that the returned raster has a specific
extent and dimensionality.
## Not run: ------------------------------------ # g <- gt_raster(raster::raster(matrix(runif(9), ncol=3), # crs=sp::CRS('+init=epsg:4326'), # xmn=0, xmx=3, ymn=2, ymx=10)) # result <- gt_projectRaster(g, sp::CRS('+init=epsg:3395'), res=50000, method='ngb') ## ---------------------------------------------