Creates a cross-section plot for a partially filled pipeSource:
This function plots a cross-section of a circular pipe, shaded as filled to the level indicated by the depth and diameter values passed to it.
xc_circle(y = NULL, d = NULL, units = c("SI", "Eng"))
water depth [\(m\) or \(ft\)]
pipe diameter [\(m\) or \(ft\)]
character vector that contains the system of units [options are
SIfor International System of Units and
Engfor English (US customary) units.