Re: discontinuity feature worthwhile?

[James R. V. Z. <jr...@co...>]

Daniel J Sebald <dan...@ie...> wrote:
>   why shouldn't a plotting program be able to leave out the line
>   connecting the left and right limits of a discontinuity?

We could implement an optional threshold on the maximum slope of the
line.  For example:

  set maxstepy {<fraction>}
  
  If the difference between successive y values exceeds <fraction> of
  the graph height, then that line segment is omitted.  <fraction> is
  a number between 0 and 1.  For "set maxstepy" with no number,
  <fraction> defaults to 1/3.
  
  set maxstepx {<fraction>}
  
  If the difference between successive x values exceeds <fraction> of
  the graph width, then that line segment is omitted.  <fraction> is a
  number between 0 and 1.  For "set maxstepx" with no number,
  <fraction> defaults to 1/3.
  
  unset maxstepy
  unset maxstepx
  
  Return to the default condition, in which all line segments are
  drawn, regardless of the change in y (resp. x) values.

                   - Jim Van Zandt