Constructor functions for cross section objects

Usage

new_sxc(l, ..., class = character())

Arguments

l: Object to turn into a cross section.
...: Attributes to add to the object.
class: If making a subclass, specify its name here.

Value

An object of class "sxc", although not necessarily with valid properties. The naming "sxc" is inspired by the sf package, which names geometries that have features "sfc".