Check and validate a polygon defined by vertices — check_polygon • SamsaRaLight

This function converts a data.frame of polygon vertices into an sf POLYGON and checks its validity. If the polygon is invalid, it attempts to fix it.

Usage

check_polygon(core_polygon_df, trees_inv, sensors = NULL, verbose = TRUE)

Arguments

core_polygon_df: A data.frame with columns x and y defining polygon vertices
trees_inv: A data.frame with one row per tree. See check_inventory for the required structure and validated columns.
sensors: Optional data.frame defining position and height of the sensor within the stand. See check_sensors for the required structure and validated columns.
verbose: Logical. If TRUE, warnings are printed

Value

A data.frame of polygon vertices (x, y):

unchanged if valid
modified if fixed (with a warning)