Tics, minor tics, labels...

[Ethan A M. <merritt@u.washington.edu>]

Two questions:

1) The documentation says you can assign labels to minor tics
      set xtics ("Major" x1 0, "Minor" x2 1, ...)
   but the code explicitly ignores minor tic labels.  Was there any
   reason why?  You can always give an empty string if you don't
   want a label there. I propose that if the user specifies a label,
   we should print it.

2) I am inclined to apply the patchset currently listed as #1104018,
   having worked with the original proposer, Eddie Kohler, to pare it
   down to a very simple modification to the existing code.
   In a nutshell, it now adds a keyword "include" to the 'set <xyz>tics'
   command. In the presense of this keyword, the command does
   not clear the existing list of user-specified tics (if any).
   So
	set xtics auto
	set xtics include ("Pi" pi 0)
	set xtics include ("2Pi" pi*2 0)
   will auto-generate tics and include specific labels at pi and 2pi.
   Omitting the keyword retains the current behaviour; each
   command supersedes the previous ones.

   Please speak up if you have any objections or counter-proposals.
   Also please suggest a better name for the keyword if you can think
   of one.  "add" is the another possibility on the table at the
   moment.


-- 
Ethan A Merritt
Biomolecular Structure Center
University of Washington, Seattle 98195-7742