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bc511a64f6
Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
355 lines
13 KiB
EmacsLisp
355 lines
13 KiB
EmacsLisp
;;; org-plot.el --- Support for Plotting from Org -*- lexical-binding: t; -*-
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;; Copyright (C) 2008-2017 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 <https://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 mailing list for testing and implementation and
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;; feature suggestions
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;;; Code:
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(require 'cl-lib)
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(require 'org)
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(require 'org-table)
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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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(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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(dolist (o 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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(setq-local 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 (nth 0 table)))
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(setf collector (cons col collector)))
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collector)))
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(counter 0)
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row-vals)
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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 (nth 0 table)))
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(gnuplot-row (lambda (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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front-edge back-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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(funcall gnuplot-row (- col 1) row
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(string-to-number (nth col (nth row table))))))
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(setf front-edge
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(concat front-edge
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(funcall gnuplot-row col row
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(string-to-number (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 (eq type 'grid) 'pm3d (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 (pcase 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")
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;; ats = add-to-script
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(ats (lambda (line) (setf script (concat script "\n" line))))
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plot-lines)
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(when file ; output file
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(funcall ats (format "set term %s" (file-name-extension file)))
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(funcall ats (format "set output '%s'" file)))
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(pcase type ; type
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(`2d ())
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(`3d (when map (funcall ats "set map")))
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(`grid (funcall ats (if map "set pm3d map" "set pm3d"))))
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(when title (funcall ats (format "set title '%s'" title))) ; title
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(mapc ats lines) ; line
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(dolist (el sets) (funcall ats (format "set %s" el))) ; set
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;; Unless specified otherwise, values are TAB separated.
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(unless (string-match-p "^set datafile separator" script)
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(funcall ats "set datafile separator \"\\t\""))
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(when x-labels ; x labels (xtics)
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(funcall ats
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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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(funcall ats
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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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(funcall ats "set xdata time")
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(funcall ats (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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(pcase type ; plot command
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(`2d (dotimes (col num-cols)
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(unless (and (eq 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)
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(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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(funcall ats
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(concat plot-cmd " " (mapconcat #'identity
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(reverse plot-lines)
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",\\\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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(org-plot/goto-nearest-table)
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;; Set default options.
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(dolist (pair org-plot/gnuplot-default-options)
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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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;; 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 (nth 0 table) 'hline) (nth 1 table)
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(nth 0 table)))))
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(run-with-idle-timer 0.1 nil #'delete-file data-file)
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(while (eq 'hline (car table)) (setf table (cdr table)))
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(when (eq (cadr table) 'hline)
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(setf params
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(plist-put params :labels (nth 0 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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(pcase (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 (1- (plist-get params :ind))))
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(when (and (>= ind 0) (eq '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) 0 1))
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(mapcar (lambda (row) (nth ind row)) table))))
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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))))
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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 (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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(provide 'org-plot)
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;; Local variables:
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;; generated-autoload-file: "org-loaddefs.el"
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;; End:
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;;; org-plot.el ends here
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