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Retrieve and assemble hydrographic points around an area

get_hydro_point.Rd

Builds a convex buffer around the input geometry, retrieves hydrographic point features from BDTOPO, normalizes them, and returns a combined sf point layer.

Usage

get_hydro_point(x, buffer = 1000)

Arguments

x

An sf object used as the input area.

buffer

numeric; Buffer around x (in meters) used to enlarge

Value

An sf object containing hydrographic point features with four fields:

  • TYPE - hydrographic class

    • MAR = Pond

  • NATURE - Original BDTOPO nature field

  • NAME - Official hydrographic name (when available)

  • ROTATION - Rotation or orientation

Details

The function retrieves BDTOPO hydrographic point details (detail_hydrographique) within a 1000 m convex buffer around x, assigns the hydrographic type, normalizes the geometries, and returns them as a single combined layer.