hydromodpy.spatial.geographic.core.catchment_from_polygon

Import and normalize an externally provided catchment polygon.

Purpose

Support workflows where catchment delineation is already available outside HydroModPy and only needs to be standardized for internal pipeline contracts.

Pipeline position

Used when catch_def='from_polyg_shp' in the geographic workflow.

Main responsibilities

• copy the input polygon to canonical watershed.shp location,

• remove duplicate attribute columns often found in shapefile exports,

• enforce CRS metadata expected by downstream steps.

Functions

extract_catchment_from_polygon(*, ...[, ...])

Copy and sanitize one input catchment polygon shapefile.