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org-plot.el: add custom var for affecting the term

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* lisp/org-plot.el (org-plot/gnuplot-term-extra): New option to let
the user to tweak the gnuplot term settings.  This allows for setting
characteristics such as default size, or background colour.
(org-plot/gnuplot-script): Use the new option for customisation of
org-plot's term.
This commit is contained in:
TEC 2020-07-09 05:00:03 +08:00 committed by Bastien
parent 73c99bf42d
commit e905353d6e
1 changed files with 16 additions and 2 deletions
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18
lisp/org-plot.el
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@ -332,6 +332,13 @@ that function. i.e. it is called with the following arguments:
:group 'org-plot
:type '(alist :value-type (symbol group)))
(defcustom org-plot/gnuplot-term-extra ""
"String or function which provides the extra term options.
E.g. a value of \"size 1050,650\" would cause
\"set term ... size 1050,650\" to be used."
:group 'org-plot
:type '(choice string function))
(defun org-plot/gnuplot-script (data-file num-cols params &optional preface)
"Write a gnuplot script to DATA-FILE respecting the options set in PARAMS.
NUM-COLS controls the number of columns plotted in a 2-d plot.
@ -361,8 +368,15 @@ manner suitable for prepending to a user-specified script."
;; ats = add-to-script
(ats (lambda (line) (setf script (concat script "\n" line))))
plot-lines)
(when file ; output file
(funcall ats (format "set term %s" (file-name-extension file)))
;; handle output file, background, and size
(funcall ats (format "set term %s %s"
(if file (file-name-extension file) "GNUTERM")
(if (stringp org-plot/gnuplot-term-extra)
org-plot/gnuplot-term-extra
(org-plot/gnuplot-term-extra))))
(when file ; output file
(funcall ats (format "set output '%s'" file)))
(funcall ats