Decreasing x axis in @Graph object?

[Daniel Drake]

I have just recently discovered lout; I am impressed.  

I have a question concerning the @Graph object which 
I have not found answered in the archives of this mailing 
list.  I am hoping someone can help me: after a lot of 
experimentation, I have concluded that it is not possible 
to draw graphs whose x axis decreases from left to right.
For example,
  @Graph
    xmin{10}
    xmax{0}
    xticksep{-1}  (* or +1 *)
    {
      @Data points { plus } 
      { ... }
    }
produces the same graph as 
  @Graph
    xmin{0}
    xmax{10}
    xticksep{1}
    {
      @Data points { plus } 
      { ... }
    }

My question is: will the graph module ever be modified 
to accomodate such plots?  If not, how hard would it 
be to modify on my own?  I've looked through the 
graph and graph.lpg files, and have a rudimentary 
understanding of what's going on, but I am not a 
postscript guru.  Does anyone have any suggestions for me?
(I know I could fake it and craft the x axis by hand using 
 xticks{}; I'm hoping to find a more elegant solution.)

Daniel Drake (address@hidden)
Center for Signal and Image Processing
Georgia Institute of Technology
Atlanta, GA, USA