Build a warped VRT of a source onto an exact target grid.

Delegates every pixel of cross-CRS math to the GDAL warper: -te/-ts pin the output grid exactly to target_grid. Float targets without a source nodata get -dstnodata nan so area outside the source footprint reads as NaN, not 0.

Usage

gdal_warp_vrt(src_path, band, target_grid, resampling, src_nodata = numeric(0))

Arguments

src_path

Source path/VSI URL.

band

1-based source band (the VRT has this single band).

target_grid

GridSpec to warp onto.

resampling

GDAL resampling method name.

src_nodata

Source sentinel (length 0 or 1), from the SourceNode.

Value

Path to the VRT file (in tempdir()).