Check the validity of an `fluvgeo` `loop_points` data structure

Checks that the input data structure `loop_points` meets the requirements for this data structure.

check_loop_points(loop_points)

Arguments

loop_points

sf object; a `loop_points` data structure used by the fluvgeo package.

Value

Returns TRUE if the `loop_points` data structure matches the requirements. The function throws an error for a data structure not matching the data specification. Returns errors describing how the the data structure doesn't match the requirement.

Details

Cross section feature classes evolve as different steps are performed on them. The `step` parameter allows a `loop_points` data structure to be checked throughout its lifecycle. Each step defines a changing set of requirements for the `loop_points` data structure.