% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/splot-geometry.R
\name{atan2_usr}
\alias{atan2_usr}
\title{Aspect-Corrected atan2}
\usage{
atan2_usr(dy, dx)
}
\arguments{
\item{dy}{Change in y (user coordinates).}

\item{dx}{Change in x (user coordinates).}
}
\value{
Angle in radians.
}
\description{
Calculate angle accounting for aspect ratio differences.
}
\keyword{internal}
