pvts_resample: Warp(resample) grids in star's or raster's objects

In pvts-approach/PVts: photosynthetic vegetation time series manipulation in R.

Description

This function is a slight modification of stars::st_warp for resampling stars and RasterLayer objects.

Usage

pvts_resample(src, dest, crs, method = "near",
  no_data_value = NA_real_, use_gdal = TRUE, RasterLayer = TRUE)

Arguments

src	object of class stars with source raster.
dest	object of class stars with target raster geometry.
crs	coordinate reference system for destination grid, only used when dest is missing.
method	character; see details for options; methods other than near only work when use_gdal=TRUE.
no_data_value	value used by gdalwarp for no_data (NA) when writing to temporaray file.
use_gdal	logical; if TRUE, use gdalwarp, through sf::gdal_utils
RasterLayer	logical; if TRUE, return a RasterLayer object.

Details

method should be one of near, bilinear, cubic, cubicspline, lanczos, average, mode, max, min, med, q1 or q3; see https://github.com/r-spatial/stars/issues/109

Value

A stars or RasterLayer object

Examples

library(raster)
library(stars)

x <- pvts_datasets$mosaic[1]
new_x1 <- st_warp(x,cellsize = 15,crs = st_crs(x)) %>% as('Raster')
names(new_x1) <- 'st_warp'
new_x2 <- pvts_resample(x,new_x1)
names(new_x2) <- 'pvts_resample'
plot(stack(new_x1,new_x2))

pvts-approach/PVts documentation built on July 1, 2019, 4:59 p.m.