forked from mirrors/org-mode
58f1dbccf8
Also remove blank lines before the ";;; org*el ends here" declarations. Having a "Version" header forced us to update every file when releasing a new version of Org; it also forced us to update every file when merging Org with Emacs trunk, thus cluttering the diffs between the previously merged version and the new one with useless information. Glenn Morris suggested this in emacs-devel: http://lists.gnu.org/archive/html/emacs-devel/2011-08/msg00322.html
353 lines
13 KiB
EmacsLisp
353 lines
13 KiB
EmacsLisp
;;; org-plot.el --- Support for plotting from Org-mode
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;; Copyright (C) 2008-2011 Free Software Foundation, Inc.
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;;
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;; Author: Eric Schulte <schulte dot eric at gmail dot com>
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;; Keywords: tables, plotting
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;; Homepage: http://orgmode.org
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;;
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;; This file is part of GNU Emacs.
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;;
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Borrows ideas and a couple of lines of code from org-exp.el.
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;; Thanks to the org-mode mailing list for testing and implementation
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;; and feature suggestions
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;;; Code:
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(require 'org)
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(require 'org-exp)
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(require 'org-table)
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(eval-when-compile
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(require 'cl))
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(declare-function gnuplot-delchar-or-maybe-eof "ext:gnuplot" (arg))
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(declare-function gnuplot-mode "ext:gnuplot" ())
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(declare-function gnuplot-send-buffer-to-gnuplot "ext:gnuplot" ())
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(defvar org-plot/gnuplot-default-options
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'((:plot-type . 2d)
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(:with . lines)
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(:ind . 0))
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"Default options to gnuplot used by `org-plot/gnuplot'.")
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(defvar org-plot-timestamp-fmt nil)
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(defun org-plot/add-options-to-plist (p options)
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"Parse an OPTIONS line and set values in the property list P.
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Returns the resulting property list."
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(let (o)
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(when options
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(let ((op '(("type" . :plot-type)
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("script" . :script)
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("line" . :line)
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("set" . :set)
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("title" . :title)
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("ind" . :ind)
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("deps" . :deps)
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("with" . :with)
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("file" . :file)
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("labels" . :labels)
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("map" . :map)
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("timeind" . :timeind)
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("timefmt" . :timefmt)))
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(multiples '("set" "line"))
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(regexp ":\\([\"][^\"]+?[\"]\\|[(][^)]+?[)]\\|[^ \t\n\r;,.]*\\)")
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(start 0)
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o)
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(while (setq o (pop op))
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(if (member (car o) multiples) ;; keys with multiple values
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(while (string-match
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(concat (regexp-quote (car o)) regexp)
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options start)
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(setq start (match-end 0))
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(setq p (plist-put p (cdr o)
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(cons (car (read-from-string
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(match-string 1 options)))
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(plist-get p (cdr o)))))
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p)
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(if (string-match (concat (regexp-quote (car o)) regexp)
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options)
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(setq p (plist-put p (cdr o)
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(car (read-from-string
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(match-string 1 options)))))))))))
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p)
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(defun org-plot/goto-nearest-table ()
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"Move the point forward to the beginning of nearest table.
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Return value is the point at the beginning of the table."
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(interactive) (move-beginning-of-line 1)
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(while (not (or (org-at-table-p) (< 0 (forward-line 1)))))
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(goto-char (org-table-begin)))
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(defun org-plot/collect-options (&optional params)
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"Collect options from an org-plot '#+Plot:' line.
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Accepts an optional property list PARAMS, to which the options
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will be added. Returns the resulting property list."
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(interactive)
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(let ((line (thing-at-point 'line)))
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(if (string-match "#\\+PLOT: +\\(.*\\)$" line)
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(org-plot/add-options-to-plist params (match-string 1 line))
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params)))
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(defun org-plot-quote-timestamp-field (s)
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"Convert field S from timestamp to Unix time and export to gnuplot."
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(format-time-string org-plot-timestamp-fmt (org-time-string-to-time s)))
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(defun org-plot-quote-tsv-field (s)
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"Quote field S for export to gnuplot."
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(if (string-match org-table-number-regexp s) s
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(if (string-match org-ts-regexp3 s)
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(org-plot-quote-timestamp-field s)
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(concat "\"" (mapconcat 'identity (split-string s "\"") "\"\"") "\""))))
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(defun org-plot/gnuplot-to-data (table data-file params)
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"Export TABLE to DATA-FILE in a format readable by gnuplot.
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Pass PARAMS through to `orgtbl-to-generic' when exporting TABLE."
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(with-temp-file
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data-file
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(make-local-variable 'org-plot-timestamp-fmt)
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(setq org-plot-timestamp-fmt (or
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(plist-get params :timefmt)
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"%Y-%m-%d-%H:%M:%S"))
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(insert (orgtbl-to-generic
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table
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(org-combine-plists
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'(:sep "\t" :fmt org-plot-quote-tsv-field)
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params))))
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nil)
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(defun org-plot/gnuplot-to-grid-data (table data-file params)
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"Export the data in TABLE to DATA-FILE for gnuplot.
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This means in a format appropriate for grid plotting by gnuplot.
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PARAMS specifies which columns of TABLE should be plotted as independent
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and dependant variables."
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(interactive)
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(let* ((ind (- (plist-get params :ind) 1))
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(deps (if (plist-member params :deps)
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(mapcar (lambda (val) (- val 1)) (plist-get params :deps))
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(let (collector)
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(dotimes (col (length (first table)))
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(setf collector (cons col collector)))
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collector)))
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row-vals (counter 0))
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(when (>= ind 0) ;; collect values of ind col
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(setf row-vals (mapcar (lambda (row) (setf counter (+ 1 counter))
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(cons counter (nth ind row))) table)))
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(when (or deps (>= ind 0)) ;; remove non-plotting columns
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(setf deps (delq ind deps))
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(setf table (mapcar (lambda (row)
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(dotimes (col (length row))
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(unless (memq col deps)
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(setf (nth col row) nil)))
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(delq nil row))
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table)))
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;; write table to gnuplot grid datafile format
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(with-temp-file data-file
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(let ((num-rows (length table)) (num-cols (length (first table)))
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front-edge back-edge)
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(flet ((gnuplot-row (col row value)
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(setf col (+ 1 col)) (setf row (+ 1 row))
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(format "%f %f %f\n%f %f %f\n"
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col (- row 0.5) value ;; lower edge
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col (+ row 0.5) value))) ;; upper edge
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(dotimes (col num-cols)
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(dotimes (row num-rows)
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(setf back-edge
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(concat back-edge
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(gnuplot-row (- col 1) row (string-to-number
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(nth col (nth row table))))))
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(setf front-edge
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(concat front-edge
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(gnuplot-row col row (string-to-number
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(nth col (nth row table)))))))
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;; only insert once per row
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(insert back-edge) (insert "\n") ;; back edge
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(insert front-edge) (insert "\n") ;; front edge
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(setf back-edge "") (setf front-edge "")))))
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row-vals))
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(defun org-plot/gnuplot-script (data-file num-cols params &optional preface)
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"Write a gnuplot script to DATA-FILE respecting the options set in PARAMS.
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NUM-COLS controls the number of columns plotted in a 2-d plot.
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Optional argument PREFACE returns only option parameters in a
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manner suitable for prepending to a user-specified script."
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(let* ((type (plist-get params :plot-type))
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(with (if (equal type 'grid)
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'pm3d
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(plist-get params :with)))
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(sets (plist-get params :set))
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(lines (plist-get params :line))
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(map (plist-get params :map))
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(title (plist-get params :title))
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(file (plist-get params :file))
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(ind (plist-get params :ind))
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(time-ind (plist-get params :timeind))
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(timefmt (plist-get params :timefmt))
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(text-ind (plist-get params :textind))
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(deps (if (plist-member params :deps) (plist-get params :deps)))
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(col-labels (plist-get params :labels))
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(x-labels (plist-get params :xlabels))
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(y-labels (plist-get params :ylabels))
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(plot-str "'%s' using %s%d%s with %s title '%s'")
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(plot-cmd (case type
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('2d "plot")
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('3d "splot")
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('grid "splot")))
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(script "reset") plot-lines)
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(flet ((add-to-script (line) (setf script (format "%s\n%s" script line))))
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(when file ;; output file
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(add-to-script (format "set term %s" (file-name-extension file)))
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(add-to-script (format "set output '%s'" file)))
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(case type ;; type
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('2d ())
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('3d (if map (add-to-script "set map")))
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('grid (if map
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(add-to-script "set pm3d map")
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(add-to-script "set pm3d"))))
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(when title (add-to-script (format "set title '%s'" title))) ;; title
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(when lines (mapc (lambda (el) (add-to-script el)) lines)) ;; line
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(when sets ;; set
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(mapc (lambda (el) (add-to-script (format "set %s" el))) sets))
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(when x-labels ;; x labels (xtics)
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(add-to-script
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(format "set xtics (%s)"
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(mapconcat (lambda (pair)
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(format "\"%s\" %d" (cdr pair) (car pair)))
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x-labels ", "))))
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(when y-labels ;; y labels (ytics)
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(add-to-script
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(format "set ytics (%s)"
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(mapconcat (lambda (pair)
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(format "\"%s\" %d" (cdr pair) (car pair)))
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y-labels ", "))))
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(when time-ind ;; timestamp index
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(add-to-script "set xdata time")
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(add-to-script (concat "set timefmt \""
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(or timefmt ;; timefmt passed to gnuplot
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"%Y-%m-%d-%H:%M:%S") "\"")))
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(unless preface
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(case type ;; plot command
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('2d (dotimes (col num-cols)
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(unless (and (equal type '2d)
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(or (and ind (equal (+ 1 col) ind))
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(and deps (not (member (+ 1 col) deps)))))
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(setf plot-lines
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(cons
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(format plot-str data-file
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(or (and ind (> ind 0)
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(not text-ind)
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(format "%d:" ind)) "")
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(+ 1 col)
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(if text-ind (format ":xticlabel(%d)" ind) "")
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with
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(or (nth col col-labels) (format "%d" (+ 1 col))))
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plot-lines)))))
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('3d
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(setq plot-lines (list (format "'%s' matrix with %s title ''"
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data-file with))))
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('grid
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(setq plot-lines (list (format "'%s' with %s title ''"
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data-file with)))))
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(add-to-script
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(concat plot-cmd " " (mapconcat 'identity (reverse plot-lines) ",\\\n "))))
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script)))
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;;-----------------------------------------------------------------------------
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;; facade functions
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;;;###autoload
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(defun org-plot/gnuplot (&optional params)
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"Plot table using gnuplot. Gnuplot options can be specified with PARAMS.
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If not given options will be taken from the +PLOT
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line directly before or after the table."
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(interactive)
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(require 'gnuplot)
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(save-window-excursion
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(delete-other-windows)
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(when (get-buffer "*gnuplot*") ;; reset *gnuplot* if it already running
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(with-current-buffer "*gnuplot*"
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(goto-char (point-max))
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(gnuplot-delchar-or-maybe-eof nil)))
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(org-plot/goto-nearest-table)
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;; set default options
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(mapc
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(lambda (pair)
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(unless (plist-member params (car pair))
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(setf params (plist-put params (car pair) (cdr pair)))))
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org-plot/gnuplot-default-options)
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;; collect table and table information
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(let* ((data-file (make-temp-file "org-plot"))
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(table (org-table-to-lisp))
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(num-cols (length (if (eq (first table) 'hline) (second table)
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(first table)))))
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(while (equal 'hline (first table)) (setf table (cdr table)))
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(when (equal (second table) 'hline)
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(setf params (plist-put params :labels (first table))) ;; headers to labels
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(setf table (delq 'hline (cdr table)))) ;; clean non-data from table
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;; collect options
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(save-excursion (while (and (equal 0 (forward-line -1))
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(looking-at "[[:space:]]*#\\+"))
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(setf params (org-plot/collect-options params))))
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;; dump table to datafile (very different for grid)
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(case (plist-get params :plot-type)
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('2d (org-plot/gnuplot-to-data table data-file params))
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('3d (org-plot/gnuplot-to-data table data-file params))
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('grid (let ((y-labels (org-plot/gnuplot-to-grid-data
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table data-file params)))
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(when y-labels (plist-put params :ylabels y-labels)))))
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;; check for timestamp ind column
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(let ((ind (- (plist-get params :ind) 1)))
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(when (and (>= ind 0) (equal '2d (plist-get params :plot-type)))
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(if (= (length
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(delq 0 (mapcar
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(lambda (el)
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(if (string-match org-ts-regexp3 el)
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0 1))
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(mapcar (lambda (row) (nth ind row)) table)))) 0)
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(plist-put params :timeind t)
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;; check for text ind column
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(if (or (string= (plist-get params :with) "hist")
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(> (length
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(delq 0 (mapcar
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(lambda (el)
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(if (string-match org-table-number-regexp el)
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0 1))
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(mapcar (lambda (row) (nth ind row)) table)))) 0))
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(plist-put params :textind t)))))
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;; write script
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(with-temp-buffer
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(if (plist-get params :script) ;; user script
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(progn (insert
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(org-plot/gnuplot-script data-file num-cols params t))
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(insert "\n")
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(insert-file-contents (plist-get params :script))
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(goto-char (point-min))
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(while (re-search-forward "$datafile" nil t)
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(replace-match data-file nil nil)))
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(insert
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(org-plot/gnuplot-script data-file num-cols params)))
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;; graph table
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(gnuplot-mode)
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(gnuplot-send-buffer-to-gnuplot))
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;; cleanup
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(bury-buffer (get-buffer "*gnuplot*"))
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(run-with-idle-timer 0.1 nil (lambda () (delete-file data-file))))))
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(provide 'org-plot)
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;;; org-plot.el ends here
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