Adds a cs_area column to a set of cross section points
Usage
add_cs_area(cs_pts, crosswalk_id = NULL)
Arguments
- cs_pts
dataframe or sf dataframe of CS points with crosswalk_id, cs_id, Z, and relative distance columns
- crosswalk_id
character, unique ID column name
Value
cs_pts dataframe with added numeric 'cs_area' column