title: Reverse abscissa/ordinate axis in wxdraw2d or wxplot2d wxmaxima
body: <p>By default, the draw/plot function plots y-axis values in ascending order (from bottom to top). In other words, -ve values are at the bottom of the graph and +ve values above the origin (towards the top of the plot). Can we reverse (see the figure attached) this behavior for the individual axis or both?</p>
  <p><a href="https://i.stack.imgur.com/10o8z.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/10o8z.png" alt="enter image description here" /></a></p>