Lower DEM cutline zones to their minimum elevation

Uses terra touched-cell rasterization and per-zone minimum elevations, without widening. Lowest cutline order wins shared cells. Original grid, CRS, units and NoData mask are retained.

burn_hydro_cutlines(source, cutlines, filename)

Arguments

source

Single-band projected elevation GeoTIFF path.

cutlines

An sf object of polylines with a declared CRS.

filename

New output GeoTIFF path; existing files are never overwritten.

Value

Output path, method and reference evidence, zone minima and software versions.