HCoop / bpt / emacs.git / blame
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| 3132f345 CW |
1 | ;;; calc-graph.el --- graph output functions for Calc |
| 2 | ||
| 58ba2f8f | 3 | ;; Copyright (C) 1990, 1991, 1992, 1993, 2001, 2002, 2003, 2004, |
| f0fa15c5 | 4 | ;; 2005, 2006, 2007 Free Software Foundation, Inc. |
| 3132f345 CW |
5 | |
| 6 | ;; Author: David Gillespie <daveg@synaptics.com> | |
| e8fff8ed | 7 | ;; Maintainer: Jay Belanger <jay.p.belanger@gmail.com> |
| 136211a9 EZ |
8 | |
| 9 | ;; This file is part of GNU Emacs. | |
| 10 | ||
| 7c671b23 GM |
11 | ;; GNU Emacs is free software; you can redistribute it and/or modify |
| 12 | ;; it under the terms of the GNU General Public License as published by | |
| 13 | ;; the Free Software Foundation; either version 2, or (at your option) | |
| 14 | ;; any later version. | |
| 15 | ||
| 136211a9 | 16 | ;; GNU Emacs is distributed in the hope that it will be useful, |
| 7c671b23 GM |
17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 19 | ;; GNU General Public License for more details. | |
| 20 | ||
| 21 | ;; You should have received a copy of the GNU General Public License | |
| 22 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
| 23 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
| 24 | ;; Boston, MA 02110-1301, USA. | |
| 136211a9 | 25 | |
| 3132f345 | 26 | ;;; Commentary: |
| 136211a9 | 27 | |
| 3132f345 | 28 | ;;; Code: |
| 136211a9 EZ |
29 | |
| 30 | ;; This file is autoloaded from calc-ext.el. | |
| 136211a9 | 31 | |
| 808cd573 | 32 | (require 'calc-ext) |
| 136211a9 EZ |
33 | (require 'calc-macs) |
| 34 | ||
| 808cd573 JB |
35 | ;;; Graphics |
| 36 | ||
| fa1c95df JB |
37 | ;; The following three variables are customizable and defined in calc.el. |
| 38 | (defvar calc-gnuplot-name) | |
| 39 | (defvar calc-gnuplot-plot-command) | |
| 40 | (defvar calc-gnuplot-print-command) | |
| 136211a9 | 41 | |
| 2c37c14b | 42 | (defvar calc-gnuplot-tempfile "calc") |
| 136211a9 | 43 | |
| ac39a77c JB |
44 | (defvar calc-gnuplot-default-device) |
| 45 | (defvar calc-gnuplot-default-output) | |
| 46 | (defvar calc-gnuplot-print-device) | |
| 47 | (defvar calc-gnuplot-print-output) | |
| 136211a9 EZ |
48 | (defvar calc-gnuplot-keep-outfile nil) |
| 49 | (defvar calc-gnuplot-version nil) | |
| 50 | ||
| 51 | (defvar calc-gnuplot-display (getenv "DISPLAY")) | |
| ac39a77c | 52 | (defvar calc-gnuplot-geometry) |
| 136211a9 | 53 | |
| ac39a77c JB |
54 | (defvar calc-graph-default-resolution) |
| 55 | (defvar calc-graph-default-resolution-3d) | |
| 136211a9 EZ |
56 | (defvar calc-graph-default-precision 5) |
| 57 | ||
| 58 | (defvar calc-gnuplot-buffer nil) | |
| 59 | (defvar calc-gnuplot-input nil) | |
| 60 | ||
| 61 | (defvar calc-gnuplot-last-error-pos 1) | |
| 62 | (defvar calc-graph-last-device nil) | |
| 63 | (defvar calc-graph-last-output nil) | |
| 64 | (defvar calc-graph-file-cache nil) | |
| 65 | (defvar calc-graph-var-cache nil) | |
| 66 | (defvar calc-graph-data-cache nil) | |
| 67 | (defvar calc-graph-data-cache-limit 10) | |
| 3132f345 CW |
68 | (defvar calc-graph-no-auto-view nil) |
| 69 | (defvar calc-graph-no-wait nil) | |
| 68d1b30d | 70 | (defvar calc-gnuplot-trail-mark) |
| 136211a9 EZ |
71 | |
| 72 | (defun calc-graph-fast (many) | |
| 73 | (interactive "P") | |
| 74 | (let ((calc-graph-no-auto-view t)) | |
| 75 | (calc-graph-delete t) | |
| 76 | (calc-graph-add many) | |
| bf77c646 | 77 | (calc-graph-plot nil))) |
| 136211a9 EZ |
78 | |
| 79 | (defun calc-graph-fast-3d (many) | |
| 80 | (interactive "P") | |
| 81 | (let ((calc-graph-no-auto-view t)) | |
| 82 | (calc-graph-delete t) | |
| 83 | (calc-graph-add-3d many) | |
| bf77c646 | 84 | (calc-graph-plot nil))) |
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85 | |
| 86 | (defun calc-graph-delete (all) | |
| 87 | (interactive "P") | |
| 88 | (calc-wrapper | |
| 89 | (calc-graph-init) | |
| 90 | (save-excursion | |
| 91 | (set-buffer calc-gnuplot-input) | |
| 92 | (and (calc-graph-find-plot t all) | |
| 93 | (progn | |
| 94 | (if (looking-at "s?plot") | |
| 95 | (progn | |
| 96 | (setq calc-graph-var-cache nil) | |
| 97 | (delete-region (point) (point-max))) | |
| 98 | (delete-region (point) (1- (point-max))))))) | |
| bf77c646 | 99 | (calc-graph-view-commands))) |
| 136211a9 EZ |
100 | |
| 101 | (defun calc-graph-find-plot (&optional before all) | |
| 102 | (goto-char (point-min)) | |
| 103 | (and (re-search-forward "^s?plot[ \t]+" nil t) | |
| 104 | (let ((beg (point))) | |
| 105 | (goto-char (point-max)) | |
| 106 | (if (or all | |
| 107 | (not (search-backward "," nil t)) | |
| 108 | (< (point) beg)) | |
| 109 | (progn | |
| 110 | (goto-char beg) | |
| 111 | (if before | |
| 112 | (beginning-of-line))) | |
| 113 | (or before | |
| 114 | (re-search-forward ",[ \t]+"))) | |
| bf77c646 | 115 | t))) |
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116 | |
| 117 | (defun calc-graph-add (many) | |
| 118 | (interactive "P") | |
| 119 | (calc-wrapper | |
| 120 | (calc-graph-init) | |
| 121 | (cond ((null many) | |
| 122 | (calc-graph-add-curve (calc-graph-lookup (calc-top-n 2)) | |
| 123 | (calc-graph-lookup (calc-top-n 1)))) | |
| 124 | ((or (consp many) (eq many 0)) | |
| 125 | (let ((xdata (calc-graph-lookup (calc-top-n 2))) | |
| 126 | (ylist (calc-top-n 1))) | |
| 127 | (or (eq (car-safe ylist) 'vec) | |
| 128 | (error "Y argument must be a vector")) | |
| 129 | (while (setq ylist (cdr ylist)) | |
| 130 | (calc-graph-add-curve xdata (calc-graph-lookup (car ylist)))))) | |
| 131 | ((> (setq many (prefix-numeric-value many)) 0) | |
| 132 | (let ((xdata (calc-graph-lookup (calc-top-n (1+ many))))) | |
| 133 | (while (> many 0) | |
| 134 | (calc-graph-add-curve xdata | |
| 135 | (calc-graph-lookup (calc-top-n many))) | |
| 136 | (setq many (1- many))))) | |
| 137 | (t | |
| 138 | (let (pair) | |
| 139 | (setq many (- many)) | |
| 140 | (while (> many 0) | |
| 141 | (setq pair (calc-top-n many)) | |
| 142 | (or (and (eq (car-safe pair) 'vec) | |
| 143 | (= (length pair) 3)) | |
| 144 | (error "Argument must be an [x,y] vector")) | |
| 145 | (calc-graph-add-curve (calc-graph-lookup (nth 1 pair)) | |
| 146 | (calc-graph-lookup (nth 2 pair))) | |
| 147 | (setq many (1- many)))))) | |
| bf77c646 | 148 | (calc-graph-view-commands))) |
| 136211a9 EZ |
149 | |
| 150 | (defun calc-graph-add-3d (many) | |
| 151 | (interactive "P") | |
| 152 | (calc-wrapper | |
| 153 | (calc-graph-init) | |
| 154 | (cond ((null many) | |
| 155 | (calc-graph-add-curve (calc-graph-lookup (calc-top-n 3)) | |
| 156 | (calc-graph-lookup (calc-top-n 2)) | |
| 157 | (calc-graph-lookup (calc-top-n 1)))) | |
| 158 | ((or (consp many) (eq many 0)) | |
| 159 | (let ((xdata (calc-graph-lookup (calc-top-n 3))) | |
| 160 | (ydata (calc-graph-lookup (calc-top-n 2))) | |
| 161 | (zlist (calc-top-n 1))) | |
| 162 | (or (eq (car-safe zlist) 'vec) | |
| 163 | (error "Z argument must be a vector")) | |
| 164 | (while (setq zlist (cdr zlist)) | |
| 165 | (calc-graph-add-curve xdata ydata | |
| 166 | (calc-graph-lookup (car zlist)))))) | |
| 167 | ((> (setq many (prefix-numeric-value many)) 0) | |
| 168 | (let ((xdata (calc-graph-lookup (calc-top-n (+ many 2)))) | |
| 169 | (ydata (calc-graph-lookup (calc-top-n (+ many 1))))) | |
| 170 | (while (> many 0) | |
| 171 | (calc-graph-add-curve xdata ydata | |
| 172 | (calc-graph-lookup (calc-top-n many))) | |
| 173 | (setq many (1- many))))) | |
| 174 | (t | |
| 175 | (let (curve) | |
| 176 | (setq many (- many)) | |
| 177 | (while (> many 0) | |
| 178 | (setq curve (calc-top-n many)) | |
| 179 | (or (and (eq (car-safe curve) 'vec) | |
| 180 | (= (length curve) 4)) | |
| 181 | (error "Argument must be an [x,y,z] vector")) | |
| 182 | (calc-graph-add-curve (calc-graph-lookup (nth 1 curve)) | |
| 183 | (calc-graph-lookup (nth 2 curve)) | |
| 184 | (calc-graph-lookup (nth 3 curve))) | |
| 185 | (setq many (1- many)))))) | |
| bf77c646 | 186 | (calc-graph-view-commands))) |
| 136211a9 EZ |
187 | |
| 188 | (defun calc-graph-add-curve (xdata ydata &optional zdata) | |
| 189 | (let ((num (calc-graph-count-curves)) | |
| 190 | (pstyle (calc-var-value 'var-PointStyles)) | |
| 191 | (lstyle (calc-var-value 'var-LineStyles))) | |
| 192 | (save-excursion | |
| 193 | (set-buffer calc-gnuplot-input) | |
| 194 | (goto-char (point-min)) | |
| 195 | (if (re-search-forward (if zdata "^plot[ \t]" "^splot[ \t]") | |
| 196 | nil t) | |
| 197 | (error "Can't mix 2d and 3d curves on one graph")) | |
| 198 | (if (re-search-forward "^s?plot[ \t]" nil t) | |
| 199 | (progn | |
| 200 | (end-of-line) | |
| 201 | (insert ", ")) | |
| 202 | (goto-char (point-max)) | |
| 203 | (or (eq (preceding-char) ?\n) | |
| 204 | (insert "\n")) | |
| 205 | (insert (if zdata "splot" "plot") " \n") | |
| 206 | (forward-char -1)) | |
| 207 | (insert "{" (symbol-name (nth 1 xdata)) | |
| 208 | ":" (symbol-name (nth 1 ydata))) | |
| 209 | (if zdata | |
| 210 | (insert ":" (symbol-name (nth 1 zdata)))) | |
| 211 | (insert "} " | |
| 212 | "title \"" (symbol-name (nth 1 ydata)) "\" " | |
| 213 | "with dots") | |
| 214 | (setq pstyle (and (eq (car-safe pstyle) 'vec) (nth (1+ num) pstyle))) | |
| b8819825 JB |
215 | (setq lstyle (and (eq (car-safe lstyle) 'vec) (nth (1+ num) lstyle)))) |
| 216 | (calc-graph-set-styles | |
| 217 | (or (and (Math-num-integerp lstyle) (math-trunc lstyle)) | |
| 218 | 0) | |
| 219 | (or (and (Math-num-integerp pstyle) (math-trunc pstyle)) | |
| 220 | (if (eq (car-safe (calc-var-value (nth 2 ydata))) 'vec) | |
| 221 | 0 -1))))) | |
| 136211a9 EZ |
222 | |
| 223 | (defun calc-graph-lookup (thing) | |
| 224 | (if (and (eq (car-safe thing) 'var) | |
| 225 | (calc-var-value (nth 2 thing))) | |
| 226 | thing | |
| 227 | (let ((found (assoc thing calc-graph-var-cache))) | |
| 228 | (or found | |
| 68d1b30d JB |
229 | (let ((varname (concat "PlotData" |
| 230 | (int-to-string | |
| 231 | (1+ (length calc-graph-var-cache)))))) | |
| 232 | (setq var (list 'var (intern varname) | |
| 136211a9 EZ |
233 | (intern (concat "var-" varname))) |
| 234 | found (cons thing var) | |
| 235 | calc-graph-var-cache (cons found calc-graph-var-cache)) | |
| 236 | (set (nth 2 var) thing))) | |
| bf77c646 | 237 | (cdr found)))) |
| 136211a9 EZ |
238 | |
| 239 | (defun calc-graph-juggle (arg) | |
| 240 | (interactive "p") | |
| 241 | (calc-graph-init) | |
| 242 | (save-excursion | |
| 243 | (set-buffer calc-gnuplot-input) | |
| 244 | (if (< arg 0) | |
| 245 | (let ((num (calc-graph-count-curves))) | |
| 246 | (if (> num 0) | |
| 247 | (while (< arg 0) | |
| 248 | (setq arg (+ arg num)))))) | |
| 249 | (while (>= (setq arg (1- arg)) 0) | |
| bf77c646 | 250 | (calc-graph-do-juggle)))) |
| 136211a9 EZ |
251 | |
| 252 | (defun calc-graph-count-curves () | |
| 253 | (save-excursion | |
| 254 | (set-buffer calc-gnuplot-input) | |
| 255 | (if (re-search-forward "^s?plot[ \t]" nil t) | |
| 256 | (let ((num 1)) | |
| 257 | (goto-char (point-min)) | |
| 258 | (while (search-forward "," nil t) | |
| 259 | (setq num (1+ num))) | |
| 260 | num) | |
| bf77c646 | 261 | 0))) |
| 136211a9 EZ |
262 | |
| 263 | (defun calc-graph-do-juggle () | |
| 264 | (let (base) | |
| 265 | (and (calc-graph-find-plot t t) | |
| 266 | (progn | |
| 267 | (setq base (point)) | |
| 268 | (calc-graph-find-plot t nil) | |
| 269 | (or (eq base (point)) | |
| 270 | (let ((str (buffer-substring (+ (point) 2) (1- (point-max))))) | |
| 271 | (delete-region (point) (1- (point-max))) | |
| 272 | (goto-char (+ base 5)) | |
| bf77c646 | 273 | (insert str ", "))))))) |
| 136211a9 EZ |
274 | |
| 275 | (defun calc-graph-print (flag) | |
| 276 | (interactive "P") | |
| bf77c646 | 277 | (calc-graph-plot flag t)) |
| 136211a9 | 278 | |
| 68d1b30d JB |
279 | (defvar var-DUMMY) |
| 280 | (defvar var-DUMMY2) | |
| 281 | (defvar var-PlotRejects) | |
| 282 | ||
| 283 | ;; The following variables are local to calc-graph-plot, but are | |
| 284 | ;; used in the functions calc-graph-compute-2d, calc-graph-refine-2d, | |
| 285 | ;; calc-graph-recompute-2d, calc-graph-compute-3d and | |
| 286 | ;; calc-graph-format-data, which are called by calc-graph-plot. | |
| 287 | (defvar calc-graph-yvalue) | |
| 288 | (defvar calc-graph-yvec) | |
| 289 | (defvar calc-graph-numsteps) | |
| 290 | (defvar calc-graph-numsteps3) | |
| 291 | (defvar calc-graph-xvalue) | |
| 292 | (defvar calc-graph-xvec) | |
| 293 | (defvar calc-graph-xname) | |
| 294 | (defvar calc-graph-yname) | |
| 295 | (defvar calc-graph-xstep) | |
| 296 | (defvar calc-graph-ycache) | |
| 297 | (defvar calc-graph-ycacheptr) | |
| 298 | (defvar calc-graph-refine) | |
| 299 | (defvar calc-graph-keep-file) | |
| 300 | (defvar calc-graph-xval) | |
| 301 | (defvar calc-graph-xlow) | |
| 302 | (defvar calc-graph-xhigh) | |
| 303 | (defvar calc-graph-yval) | |
| 304 | (defvar calc-graph-yp) | |
| 305 | (defvar calc-graph-xp) | |
| 306 | (defvar calc-graph-zp) | |
| 307 | (defvar calc-graph-yvector) | |
| 308 | (defvar calc-graph-resolution) | |
| 309 | (defvar calc-graph-y3value) | |
| 310 | (defvar calc-graph-y3name) | |
| 311 | (defvar calc-graph-y3step) | |
| 312 | (defvar calc-graph-zval) | |
| 313 | (defvar calc-graph-stepcount) | |
| 314 | (defvar calc-graph-is-splot) | |
| 315 | (defvar calc-graph-surprise-splot) | |
| 316 | (defvar calc-graph-blank) | |
| 317 | (defvar calc-graph-non-blank) | |
| 318 | (defvar calc-graph-curve-num) | |
| 319 | ||
| 136211a9 EZ |
320 | (defun calc-graph-plot (flag &optional printing) |
| 321 | (interactive "P") | |
| 322 | (calc-slow-wrapper | |
| 323 | (let ((calcbuf (current-buffer)) | |
| 324 | (tempbuf (get-buffer-create "*Gnuplot Temp-2*")) | |
| 325 | (tempbuftop 1) | |
| 326 | (tempoutfile nil) | |
| 68d1b30d JB |
327 | (calc-graph-curve-num 0) |
| 328 | (calc-graph-refine (and flag (> (prefix-numeric-value flag) 0))) | |
| 136211a9 | 329 | (recompute (and flag (< (prefix-numeric-value flag) 0))) |
| 68d1b30d | 330 | (calc-graph-surprise-splot nil) |
| 136211a9 | 331 | (tty-output nil) |
| 68d1b30d JB |
332 | cache-env calc-graph-is-splot device output calc-graph-resolution precision samples-pos) |
| 333 | (add-hook 'kill-emacs-hook 'calc-graph-kill-hook) | |
| 136211a9 EZ |
334 | (save-excursion |
| 335 | (calc-graph-init) | |
| 336 | (set-buffer tempbuf) | |
| 337 | (erase-buffer) | |
| 338 | (set-buffer calc-gnuplot-input) | |
| 339 | (goto-char (point-min)) | |
| 68d1b30d | 340 | (setq calc-graph-is-splot (re-search-forward "^splot[ \t]" nil t)) |
| 136211a9 EZ |
341 | (let ((str (buffer-string)) |
| 342 | (ver calc-gnuplot-version)) | |
| 343 | (set-buffer (get-buffer-create "*Gnuplot Temp*")) | |
| 344 | (erase-buffer) | |
| 345 | (insert "# (Note: This is a temporary copy---do not edit!)\n") | |
| 346 | (if (>= ver 2) | |
| 347 | (insert "set noarrow\nset nolabel\n" | |
| 348 | "set autoscale xy\nset nologscale xy\n" | |
| 349 | "set xlabel\nset ylabel\nset title\n" | |
| 350 | "set noclip points\nset clip one\nset clip two\n" | |
| 351 | "set format \"%g\"\nset tics\nset xtics\nset ytics\n" | |
| 352 | "set data style linespoints\n" | |
| 353 | "set nogrid\nset nokey\nset nopolar\n")) | |
| 354 | (if (>= ver 3) | |
| 355 | (insert "set surface\nset nocontour\n" | |
| 68d1b30d | 356 | "set " (if calc-graph-is-splot "" "no") "parametric\n" |
| 136211a9 EZ |
357 | "set notime\nset border\nset ztics\nset zeroaxis\n" |
| 358 | "set view 60,30,1,1\nset offsets 0,0,0,0\n")) | |
| 359 | (setq samples-pos (point)) | |
| 360 | (insert "\n\n" str)) | |
| 361 | (goto-char (point-min)) | |
| 68d1b30d JB |
362 | (if calc-graph-is-splot |
| 363 | (if calc-graph-refine | |
| 136211a9 EZ |
364 | (error "This option works only for 2d plots") |
| 365 | (setq recompute t))) | |
| 366 | (let ((calc-gnuplot-input (current-buffer)) | |
| 367 | (calc-graph-no-auto-view t)) | |
| 368 | (if printing | |
| 369 | (setq device calc-gnuplot-print-device | |
| 370 | output calc-gnuplot-print-output) | |
| 371 | (setq device (calc-graph-find-command "terminal") | |
| 372 | output (calc-graph-find-command "output")) | |
| 373 | (or device | |
| 374 | (setq device calc-gnuplot-default-device)) | |
| 375 | (if output | |
| 376 | (setq output (car (read-from-string output))) | |
| 377 | (setq output calc-gnuplot-default-output))) | |
| 378 | (if (or (equal device "") (equal device "default")) | |
| 379 | (setq device (if printing | |
| 380 | "postscript" | |
| 381 | (if (or (eq window-system 'x) (getenv "DISPLAY")) | |
| 382 | "x11" | |
| 383 | (if (>= calc-gnuplot-version 3) | |
| 384 | "dumb" "postscript"))))) | |
| 385 | (if (equal device "dumb") | |
| 386 | (setq device (format "dumb %d %d" | |
| 8f66f479 | 387 | (1- (frame-width)) (1- (frame-height))))) |
| 136211a9 EZ |
388 | (if (equal device "big") |
| 389 | (setq device (format "dumb %d %d" | |
| 8f66f479 EZ |
390 | (* 4 (- (frame-width) 3)) |
| 391 | (* 4 (- (frame-height) 3))))) | |
| 136211a9 EZ |
392 | (if (stringp output) |
| 393 | (if (or (equal output "auto") | |
| 394 | (and (equal output "tty") (setq tty-output t))) | |
| 395 | (setq tempoutfile (calc-temp-file-name -1) | |
| 396 | output tempoutfile)) | |
| 397 | (setq output (eval output))) | |
| 398 | (or (equal device calc-graph-last-device) | |
| 399 | (progn | |
| 400 | (setq calc-graph-last-device device) | |
| 401 | (calc-gnuplot-command "set terminal" device))) | |
| 402 | (or (equal output calc-graph-last-output) | |
| 403 | (progn | |
| 404 | (setq calc-graph-last-output output) | |
| 405 | (calc-gnuplot-command "set output" | |
| 406 | (if (equal output "STDOUT") | |
| 407 | "" | |
| 408 | (prin1-to-string output))))) | |
| 68d1b30d JB |
409 | (setq calc-graph-resolution (calc-graph-find-command "samples")) |
| 410 | (if calc-graph-resolution | |
| 723c2377 | 411 | (setq calc-graph-resolution (string-to-number calc-graph-resolution)) |
| 68d1b30d | 412 | (setq calc-graph-resolution (if calc-graph-is-splot |
| 136211a9 EZ |
413 | calc-graph-default-resolution-3d |
| 414 | calc-graph-default-resolution))) | |
| 415 | (setq precision (calc-graph-find-command "precision")) | |
| 416 | (if precision | |
| 723c2377 | 417 | (setq precision (string-to-number precision)) |
| 136211a9 EZ |
418 | (setq precision calc-graph-default-precision)) |
| 419 | (calc-graph-set-command "terminal") | |
| 420 | (calc-graph-set-command "output") | |
| 421 | (calc-graph-set-command "samples") | |
| 422 | (calc-graph-set-command "precision")) | |
| 423 | (goto-char samples-pos) | |
| 68d1b30d JB |
424 | (insert "set samples " (int-to-string (max (if calc-graph-is-splot 20 200) |
| 425 | (+ 5 calc-graph-resolution))) "\n") | |
| 136211a9 EZ |
426 | (while (re-search-forward "{\\*[^}]+}[^,\n]*" nil t) |
| 427 | (delete-region (match-beginning 0) (match-end 0)) | |
| 428 | (if (looking-at ",") | |
| 429 | (delete-char 1) | |
| 9b80830c | 430 | (while (memq (preceding-char) '(?\s ?\t)) |
| 136211a9 EZ |
431 | (forward-char -1)) |
| 432 | (if (eq (preceding-char) ?\,) | |
| 433 | (delete-backward-char 1)))) | |
| 434 | (save-excursion | |
| 435 | (set-buffer calcbuf) | |
| 436 | (setq cache-env (list calc-angle-mode | |
| 437 | calc-complex-mode | |
| 438 | calc-simplify-mode | |
| 439 | calc-infinite-mode | |
| 440 | calc-word-size | |
| 68d1b30d | 441 | precision calc-graph-is-splot)) |
| 136211a9 EZ |
442 | (if (and (not recompute) |
| 443 | (equal (cdr (car calc-graph-data-cache)) cache-env)) | |
| 444 | (while (> (length calc-graph-data-cache) | |
| 445 | calc-graph-data-cache-limit) | |
| 446 | (setcdr calc-graph-data-cache | |
| 447 | (cdr (cdr calc-graph-data-cache)))) | |
| 448 | (setq calc-graph-data-cache (list (cons nil cache-env))))) | |
| 449 | (calc-graph-find-plot t t) | |
| 450 | (while (re-search-forward | |
| 68d1b30d | 451 | (if calc-graph-is-splot |
| 136211a9 EZ |
452 | "{\\([^{}:\n]+\\):\\([^{}:\n]+\\):\\([^{}:\n]+\\)}" |
| 453 | "{\\([^{}:\n]+\\)\\(:\\)\\([^{}:\n]+\\)}") | |
| 454 | nil t) | |
| 68d1b30d JB |
455 | (setq calc-graph-curve-num (1+ calc-graph-curve-num)) |
| 456 | (let* ((calc-graph-xname (buffer-substring (match-beginning 1) (match-end 1))) | |
| 457 | (xvar (intern (concat "var-" calc-graph-xname))) | |
| 458 | (calc-graph-xvalue (math-evaluate-expr (calc-var-value xvar))) | |
| 459 | (calc-graph-y3name (and calc-graph-is-splot | |
| 136211a9 EZ |
460 | (buffer-substring (match-beginning 2) |
| 461 | (match-end 2)))) | |
| 68d1b30d JB |
462 | (y3var (and calc-graph-is-splot (intern (concat "var-" calc-graph-y3name)))) |
| 463 | (calc-graph-y3value (and calc-graph-is-splot (calc-var-value y3var))) | |
| 464 | (calc-graph-yname (buffer-substring (match-beginning 3) (match-end 3))) | |
| 465 | (yvar (intern (concat "var-" calc-graph-yname))) | |
| 466 | (calc-graph-yvalue (calc-var-value yvar)) | |
| 136211a9 EZ |
467 | filename) |
| 468 | (delete-region (match-beginning 0) (match-end 0)) | |
| 68d1b30d | 469 | (setq filename (calc-temp-file-name calc-graph-curve-num)) |
| 136211a9 EZ |
470 | (save-excursion |
| 471 | (set-buffer calcbuf) | |
| 472 | (let (tempbuftop | |
| 68d1b30d JB |
473 | (calc-graph-xp calc-graph-xvalue) |
| 474 | (calc-graph-yp calc-graph-yvalue) | |
| 475 | (calc-graph-zp nil) | |
| 476 | (calc-graph-xlow nil) (calc-graph-xhigh nil) (y3low nil) (y3high nil) | |
| 477 | calc-graph-xvec calc-graph-xval calc-graph-xstep var-DUMMY | |
| 478 | y3val calc-graph-y3step var-DUMMY2 (calc-graph-zval nil) | |
| 479 | calc-graph-yvec calc-graph-yval calc-graph-ycache calc-graph-ycacheptr calc-graph-yvector | |
| 480 | calc-graph-numsteps calc-graph-numsteps3 | |
| 481 | (calc-graph-keep-file (and (not calc-graph-is-splot) (file-exists-p filename))) | |
| 482 | (calc-graph-stepcount 0) | |
| 136211a9 EZ |
483 | (calc-symbolic-mode nil) |
| 484 | (calc-prefer-frac nil) | |
| 485 | (calc-internal-prec (max 3 precision)) | |
| 486 | (calc-simplify-mode (and (not (memq calc-simplify-mode | |
| 487 | '(none num))) | |
| 488 | calc-simplify-mode)) | |
| 68d1b30d JB |
489 | (calc-graph-blank t) |
| 490 | (calc-graph-non-blank nil) | |
| 136211a9 EZ |
491 | (math-working-step 0) |
| 492 | (math-working-step-2 nil)) | |
| 493 | (save-excursion | |
| 68d1b30d | 494 | (if calc-graph-is-splot |
| 136211a9 EZ |
495 | (calc-graph-compute-3d) |
| 496 | (calc-graph-compute-2d)) | |
| 497 | (set-buffer tempbuf) | |
| 498 | (goto-char (point-max)) | |
| 68d1b30d JB |
499 | (insert "\n" calc-graph-xname) |
| 500 | (if calc-graph-is-splot | |
| 501 | (insert ":" calc-graph-y3name)) | |
| 502 | (insert ":" calc-graph-yname "\n\n") | |
| 136211a9 EZ |
503 | (setq tempbuftop (point)) |
| 504 | (let ((calc-group-digits nil) | |
| 505 | (calc-leading-zeros nil) | |
| 506 | (calc-number-radix 10) | |
| 68d1b30d JB |
507 | (entry (and (not calc-graph-is-splot) |
| 508 | (list calc-graph-xp calc-graph-yp calc-graph-xhigh calc-graph-numsteps)))) | |
| 136211a9 | 509 | (or (equal entry |
| 68d1b30d | 510 | (nth 1 (nth (1+ calc-graph-curve-num) |
| 136211a9 | 511 | calc-graph-file-cache))) |
| 68d1b30d JB |
512 | (setq calc-graph-keep-file nil)) |
| 513 | (setcar (cdr (nth (1+ calc-graph-curve-num) calc-graph-file-cache)) | |
| 136211a9 | 514 | entry) |
| 68d1b30d | 515 | (or calc-graph-keep-file |
| 136211a9 | 516 | (calc-graph-format-data))) |
| 68d1b30d | 517 | (or calc-graph-keep-file |
| 136211a9 | 518 | (progn |
| 68d1b30d | 519 | (or calc-graph-non-blank |
| 136211a9 | 520 | (error "No valid data points for %s:%s" |
| 68d1b30d | 521 | calc-graph-xname calc-graph-yname)) |
| 136211a9 EZ |
522 | (write-region tempbuftop (point-max) filename |
| 523 | nil 'quiet)))))) | |
| 524 | (insert (prin1-to-string filename)))) | |
| 68d1b30d | 525 | (if calc-graph-surprise-splot |
| 136211a9 | 526 | (setcdr cache-env nil)) |
| 68d1b30d | 527 | (if (= calc-graph-curve-num 0) |
| 136211a9 EZ |
528 | (progn |
| 529 | (calc-gnuplot-command "clear") | |
| 530 | (calc-clear-command-flag 'clear-message) | |
| 531 | (message "No data to plot!")) | |
| 68d1b30d | 532 | (setq calc-graph-data-cache-limit (max calc-graph-curve-num |
| 136211a9 EZ |
533 | calc-graph-data-cache-limit) |
| 534 | filename (calc-temp-file-name 0)) | |
| 535 | (write-region (point-min) (point-max) filename nil 'quiet) | |
| 536 | (calc-gnuplot-command "load" (prin1-to-string filename)) | |
| 537 | (or (equal output "STDOUT") | |
| 538 | calc-gnuplot-keep-outfile | |
| 539 | (progn ; need to close the output file before printing/plotting | |
| 540 | (setq calc-graph-last-output "STDOUT") | |
| 541 | (calc-gnuplot-command "set output"))) | |
| 542 | (let ((command (if printing | |
| 543 | calc-gnuplot-print-command | |
| 544 | (or calc-gnuplot-plot-command | |
| 545 | (and (string-match "^dumb" device) | |
| 546 | 'calc-graph-show-dumb) | |
| 547 | (and tty-output | |
| 548 | 'calc-graph-show-tty))))) | |
| 549 | (if command | |
| 550 | (if (stringp command) | |
| 551 | (calc-gnuplot-command | |
| 552 | "!" (format command | |
| 553 | (or tempoutfile | |
| 554 | calc-gnuplot-print-output))) | |
| 555 | (if (symbolp command) | |
| 556 | (funcall command output) | |
| bf77c646 | 557 | (eval command)))))))))) |
| 136211a9 EZ |
558 | |
| 559 | (defun calc-graph-compute-2d () | |
| 68d1b30d JB |
560 | (if (setq calc-graph-yvec (eq (car-safe calc-graph-yvalue) 'vec)) |
| 561 | (if (= (setq calc-graph-numsteps (1- (length calc-graph-yvalue))) 0) | |
| 136211a9 | 562 | (error "Can't plot an empty vector") |
| 68d1b30d JB |
563 | (if (setq calc-graph-xvec (eq (car-safe calc-graph-xvalue) 'vec)) |
| 564 | (or (= (1- (length calc-graph-xvalue)) calc-graph-numsteps) | |
| 565 | (error "%s and %s have different lengths" calc-graph-xname calc-graph-yname)) | |
| 566 | (if (and (eq (car-safe calc-graph-xvalue) 'intv) | |
| 567 | (math-constp calc-graph-xvalue)) | |
| 568 | (setq calc-graph-xstep (math-div (math-sub (nth 3 calc-graph-xvalue) | |
| 569 | (nth 2 calc-graph-xvalue)) | |
| 570 | (1- calc-graph-numsteps)) | |
| 571 | calc-graph-xvalue (nth 2 calc-graph-xvalue)) | |
| 572 | (if (math-realp calc-graph-xvalue) | |
| 573 | (setq calc-graph-xstep 1) | |
| 574 | (error "%s is not a suitable basis for %s" calc-graph-xname calc-graph-yname))))) | |
| 575 | (or (math-realp calc-graph-yvalue) | |
| 136211a9 | 576 | (let ((arglist nil)) |
| 68d1b30d JB |
577 | (setq calc-graph-yvalue (math-evaluate-expr calc-graph-yvalue)) |
| 578 | (calc-default-formula-arglist calc-graph-yvalue) | |
| 136211a9 | 579 | (or arglist |
| 68d1b30d | 580 | (error "%s does not contain any unassigned variables" calc-graph-yname)) |
| 136211a9 EZ |
581 | (and (cdr arglist) |
| 582 | (error "%s contains more than one variable: %s" | |
| 68d1b30d JB |
583 | calc-graph-yname arglist)) |
| 584 | (setq calc-graph-yvalue (math-expr-subst calc-graph-yvalue | |
| 136211a9 EZ |
585 | (math-build-var-name (car arglist)) |
| 586 | '(var DUMMY var-DUMMY))))) | |
| 68d1b30d JB |
587 | (setq calc-graph-ycache (assoc calc-graph-yvalue calc-graph-data-cache)) |
| 588 | (delq calc-graph-ycache calc-graph-data-cache) | |
| 136211a9 | 589 | (nconc calc-graph-data-cache |
| 68d1b30d JB |
590 | (list (or calc-graph-ycache (setq calc-graph-ycache (list calc-graph-yvalue))))) |
| 591 | (if (and (not (setq calc-graph-xvec (eq (car-safe calc-graph-xvalue) 'vec))) | |
| 592 | calc-graph-refine (cdr (cdr calc-graph-ycache))) | |
| 136211a9 | 593 | (calc-graph-refine-2d) |
| bf77c646 | 594 | (calc-graph-recompute-2d)))) |
| 136211a9 EZ |
595 | |
| 596 | (defun calc-graph-refine-2d () | |
| 68d1b30d JB |
597 | (setq calc-graph-keep-file nil |
| 598 | calc-graph-ycacheptr (cdr calc-graph-ycache)) | |
| 599 | (if (and (setq calc-graph-xval (calc-graph-find-command "xrange")) | |
| 136211a9 | 600 | (string-match "\\`\\[\\([0-9.eE+-]*\\):\\([0-9.eE+-]*\\)\\]\\'" |
| 68d1b30d | 601 | calc-graph-xval)) |
| 136211a9 EZ |
602 | (let ((b2 (match-beginning 2)) |
| 603 | (e2 (match-end 2))) | |
| 68d1b30d | 604 | (setq calc-graph-xlow (math-read-number (substring calc-graph-xval |
| 136211a9 EZ |
605 | (match-beginning 1) |
| 606 | (match-end 1))) | |
| 68d1b30d JB |
607 | calc-graph-xhigh (math-read-number (substring calc-graph-xval b2 e2)))) |
| 608 | (if calc-graph-xlow | |
| 609 | (while (and (cdr calc-graph-ycacheptr) | |
| 610 | (Math-lessp (car (nth 1 calc-graph-ycacheptr)) calc-graph-xlow)) | |
| 611 | (setq calc-graph-ycacheptr (cdr calc-graph-ycacheptr))))) | |
| 612 | (setq math-working-step-2 (1- (length calc-graph-ycacheptr))) | |
| 613 | (while (and (cdr calc-graph-ycacheptr) | |
| 614 | (or (not calc-graph-xhigh) | |
| 615 | (Math-lessp (car (car calc-graph-ycacheptr)) calc-graph-xhigh))) | |
| 616 | (setq var-DUMMY (math-div (math-add (car (car calc-graph-ycacheptr)) | |
| 617 | (car (nth 1 calc-graph-ycacheptr))) | |
| 136211a9 EZ |
618 | 2) |
| 619 | math-working-step (1+ math-working-step) | |
| 68d1b30d JB |
620 | calc-graph-yval (math-evaluate-expr calc-graph-yvalue)) |
| 621 | (setcdr calc-graph-ycacheptr (cons (cons var-DUMMY calc-graph-yval) | |
| 622 | (cdr calc-graph-ycacheptr))) | |
| 623 | (setq calc-graph-ycacheptr (cdr (cdr calc-graph-ycacheptr)))) | |
| 624 | (setq calc-graph-yp calc-graph-ycache | |
| 625 | calc-graph-numsteps 1000000)) | |
| 136211a9 EZ |
626 | |
| 627 | (defun calc-graph-recompute-2d () | |
| 68d1b30d JB |
628 | (setq calc-graph-ycacheptr calc-graph-ycache) |
| 629 | (if calc-graph-xvec | |
| 630 | (setq calc-graph-numsteps (1- (length calc-graph-xvalue)) | |
| 631 | calc-graph-yvector nil) | |
| 632 | (if (and (eq (car-safe calc-graph-xvalue) 'intv) | |
| 633 | (math-constp calc-graph-xvalue)) | |
| 634 | (setq calc-graph-numsteps calc-graph-resolution | |
| 635 | calc-graph-yp nil | |
| 636 | calc-graph-xlow (nth 2 calc-graph-xvalue) | |
| 637 | calc-graph-xhigh (nth 3 calc-graph-xvalue) | |
| 638 | calc-graph-xstep (math-div (math-sub calc-graph-xhigh calc-graph-xlow) | |
| 639 | (1- calc-graph-numsteps)) | |
| 640 | calc-graph-xvalue (nth 2 calc-graph-xvalue)) | |
| 136211a9 | 641 | (error "%s is not a suitable basis for %s" |
| 68d1b30d JB |
642 | calc-graph-xname calc-graph-yname))) |
| 643 | (setq math-working-step-2 calc-graph-numsteps) | |
| 644 | (while (>= (setq calc-graph-numsteps (1- calc-graph-numsteps)) 0) | |
| 136211a9 | 645 | (setq math-working-step (1+ math-working-step)) |
| 68d1b30d | 646 | (if calc-graph-xvec |
| 136211a9 | 647 | (progn |
| 68d1b30d JB |
648 | (setq calc-graph-xp (cdr calc-graph-xp) |
| 649 | calc-graph-xval (car calc-graph-xp)) | |
| 650 | (and (not (eq calc-graph-ycacheptr calc-graph-ycache)) | |
| 651 | (consp (car calc-graph-ycacheptr)) | |
| 652 | (not (Math-lessp (car (car calc-graph-ycacheptr)) calc-graph-xval)) | |
| 653 | (setq calc-graph-ycacheptr calc-graph-ycache))) | |
| 654 | (if (= calc-graph-numsteps 0) | |
| 655 | (setq calc-graph-xval calc-graph-xhigh) ; avoid cumulative roundoff | |
| 656 | (setq calc-graph-xval calc-graph-xvalue | |
| 657 | calc-graph-xvalue (math-add calc-graph-xvalue calc-graph-xstep)))) | |
| 658 | (while (and (cdr calc-graph-ycacheptr) | |
| 659 | (Math-lessp (car (nth 1 calc-graph-ycacheptr)) calc-graph-xval)) | |
| 660 | (setq calc-graph-ycacheptr (cdr calc-graph-ycacheptr))) | |
| 661 | (or (and (cdr calc-graph-ycacheptr) | |
| 662 | (Math-equal (car (nth 1 calc-graph-ycacheptr)) calc-graph-xval)) | |
| 136211a9 | 663 | (progn |
| 68d1b30d JB |
664 | (setq calc-graph-keep-file nil |
| 665 | var-DUMMY calc-graph-xval) | |
| 666 | (setcdr calc-graph-ycacheptr (cons (cons calc-graph-xval (math-evaluate-expr calc-graph-yvalue)) | |
| 667 | (cdr calc-graph-ycacheptr))))) | |
| 668 | (setq calc-graph-ycacheptr (cdr calc-graph-ycacheptr)) | |
| 669 | (if calc-graph-xvec | |
| 670 | (setq calc-graph-yvector (cons (cdr (car calc-graph-ycacheptr)) calc-graph-yvector)) | |
| 671 | (or calc-graph-yp (setq calc-graph-yp calc-graph-ycacheptr)))) | |
| 672 | (if calc-graph-xvec | |
| 673 | (setq calc-graph-xp calc-graph-xvalue | |
| 674 | calc-graph-yvec t | |
| 675 | calc-graph-yp (cons 'vec (nreverse calc-graph-yvector)) | |
| 676 | calc-graph-numsteps (1- (length calc-graph-xp))) | |
| 677 | (setq calc-graph-numsteps 1000000))) | |
| 136211a9 EZ |
678 | |
| 679 | (defun calc-graph-compute-3d () | |
| 68d1b30d JB |
680 | (if (setq calc-graph-yvec (eq (car-safe calc-graph-yvalue) 'vec)) |
| 681 | (if (math-matrixp calc-graph-yvalue) | |
| 136211a9 | 682 | (progn |
| 68d1b30d JB |
683 | (setq calc-graph-numsteps (1- (length calc-graph-yvalue)) |
| 684 | calc-graph-numsteps3 (1- (length (nth 1 calc-graph-yvalue)))) | |
| 685 | (if (eq (car-safe calc-graph-xvalue) 'vec) | |
| 686 | (or (= (1- (length calc-graph-xvalue)) calc-graph-numsteps) | |
| 687 | (error "%s has wrong length" calc-graph-xname)) | |
| 688 | (if (and (eq (car-safe calc-graph-xvalue) 'intv) | |
| 689 | (math-constp calc-graph-xvalue)) | |
| 690 | (setq calc-graph-xvalue (calcFunc-index calc-graph-numsteps | |
| 691 | (nth 2 calc-graph-xvalue) | |
| 136211a9 | 692 | (math-div |
| 68d1b30d JB |
693 | (math-sub (nth 3 calc-graph-xvalue) |
| 694 | (nth 2 calc-graph-xvalue)) | |
| 695 | (1- calc-graph-numsteps)))) | |
| 696 | (if (math-realp calc-graph-xvalue) | |
| 697 | (setq calc-graph-xvalue (calcFunc-index calc-graph-numsteps calc-graph-xvalue 1)) | |
| 698 | (error "%s is not a suitable basis for %s" calc-graph-xname calc-graph-yname)))) | |
| 699 | (if (eq (car-safe calc-graph-y3value) 'vec) | |
| 700 | (or (= (1- (length calc-graph-y3value)) calc-graph-numsteps3) | |
| 701 | (error "%s has wrong length" calc-graph-y3name)) | |
| 702 | (if (and (eq (car-safe calc-graph-y3value) 'intv) | |
| 703 | (math-constp calc-graph-y3value)) | |
| 704 | (setq calc-graph-y3value (calcFunc-index calc-graph-numsteps3 | |
| 705 | (nth 2 calc-graph-y3value) | |
| 136211a9 | 706 | (math-div |
| 68d1b30d JB |
707 | (math-sub (nth 3 calc-graph-y3value) |
| 708 | (nth 2 calc-graph-y3value)) | |
| 709 | (1- calc-graph-numsteps3)))) | |
| 710 | (if (math-realp calc-graph-y3value) | |
| 711 | (setq calc-graph-y3value (calcFunc-index calc-graph-numsteps3 calc-graph-y3value 1)) | |
| 712 | (error "%s is not a suitable basis for %s" calc-graph-y3name calc-graph-yname)))) | |
| 713 | (setq calc-graph-xp nil | |
| 714 | calc-graph-yp nil | |
| 715 | calc-graph-zp nil | |
| 716 | calc-graph-xvec t) | |
| 717 | (while (setq calc-graph-xvalue (cdr calc-graph-xvalue) calc-graph-yvalue (cdr calc-graph-yvalue)) | |
| 718 | (setq calc-graph-xp (nconc calc-graph-xp (make-list (1+ calc-graph-numsteps3) (car calc-graph-xvalue))) | |
| 719 | calc-graph-yp (nconc calc-graph-yp (cons 0 (copy-sequence (cdr calc-graph-y3value)))) | |
| 720 | calc-graph-zp (nconc calc-graph-zp (cons '(skip) | |
| 721 | (copy-sequence (cdr (car calc-graph-yvalue))))))) | |
| 722 | (setq calc-graph-numsteps (1- (* calc-graph-numsteps | |
| 723 | (1+ calc-graph-numsteps3))))) | |
| 724 | (if (= (setq calc-graph-numsteps (1- (length calc-graph-yvalue))) 0) | |
| 136211a9 | 725 | (error "Can't plot an empty vector")) |
| 68d1b30d JB |
726 | (or (and (eq (car-safe calc-graph-xvalue) 'vec) |
| 727 | (= (1- (length calc-graph-xvalue)) calc-graph-numsteps)) | |
| 728 | (error "%s is not a suitable basis for %s" calc-graph-xname calc-graph-yname)) | |
| 729 | (or (and (eq (car-safe calc-graph-y3value) 'vec) | |
| 730 | (= (1- (length calc-graph-y3value)) calc-graph-numsteps)) | |
| 731 | (error "%s is not a suitable basis for %s" calc-graph-y3name calc-graph-yname)) | |
| 732 | (setq calc-graph-xp calc-graph-xvalue | |
| 733 | calc-graph-yp calc-graph-y3value | |
| 734 | calc-graph-zp calc-graph-yvalue | |
| 735 | calc-graph-xvec t)) | |
| 736 | (or (math-realp calc-graph-yvalue) | |
| 136211a9 | 737 | (let ((arglist nil)) |
| 68d1b30d JB |
738 | (setq calc-graph-yvalue (math-evaluate-expr calc-graph-yvalue)) |
| 739 | (calc-default-formula-arglist calc-graph-yvalue) | |
| 136211a9 EZ |
740 | (setq arglist (sort arglist 'string-lessp)) |
| 741 | (or (cdr arglist) | |
| 68d1b30d | 742 | (error "%s does not contain enough unassigned variables" calc-graph-yname)) |
| 136211a9 | 743 | (and (cdr (cdr arglist)) |
| 68d1b30d JB |
744 | (error "%s contains too many variables: %s" calc-graph-yname arglist)) |
| 745 | (setq calc-graph-yvalue (math-multi-subst calc-graph-yvalue | |
| 136211a9 EZ |
746 | (mapcar 'math-build-var-name |
| 747 | arglist) | |
| 748 | '((var DUMMY var-DUMMY) | |
| 749 | (var DUMMY2 var-DUMMY2)))))) | |
| 68d1b30d JB |
750 | (if (setq calc-graph-xvec (eq (car-safe calc-graph-xvalue) 'vec)) |
| 751 | (setq calc-graph-numsteps (1- (length calc-graph-xvalue))) | |
| 752 | (if (and (eq (car-safe calc-graph-xvalue) 'intv) | |
| 753 | (math-constp calc-graph-xvalue)) | |
| 754 | (setq calc-graph-numsteps calc-graph-resolution | |
| 755 | calc-graph-xvalue (calcFunc-index calc-graph-numsteps | |
| 756 | (nth 2 calc-graph-xvalue) | |
| 757 | (math-div (math-sub (nth 3 calc-graph-xvalue) | |
| 758 | (nth 2 calc-graph-xvalue)) | |
| 759 | (1- calc-graph-numsteps)))) | |
| 136211a9 | 760 | (error "%s is not a suitable basis for %s" |
| 68d1b30d JB |
761 | calc-graph-xname calc-graph-yname))) |
| 762 | (if (eq (car-safe calc-graph-y3value) 'vec) | |
| 763 | (setq calc-graph-numsteps3 (1- (length calc-graph-y3value))) | |
| 764 | (if (and (eq (car-safe calc-graph-y3value) 'intv) | |
| 765 | (math-constp calc-graph-y3value)) | |
| 766 | (setq calc-graph-numsteps3 calc-graph-resolution | |
| 767 | calc-graph-y3value (calcFunc-index calc-graph-numsteps3 | |
| 768 | (nth 2 calc-graph-y3value) | |
| 769 | (math-div (math-sub (nth 3 calc-graph-y3value) | |
| 770 | (nth 2 calc-graph-y3value)) | |
| 771 | (1- calc-graph-numsteps3)))) | |
| 136211a9 | 772 | (error "%s is not a suitable basis for %s" |
| 68d1b30d JB |
773 | calc-graph-y3name calc-graph-yname))) |
| 774 | (setq calc-graph-xp nil | |
| 775 | calc-graph-yp nil | |
| 776 | calc-graph-zp nil | |
| 777 | calc-graph-xvec t) | |
| 136211a9 | 778 | (setq math-working-step 0) |
| 68d1b30d JB |
779 | (while (setq calc-graph-xvalue (cdr calc-graph-xvalue)) |
| 780 | (setq calc-graph-xp (nconc calc-graph-xp (make-list (1+ calc-graph-numsteps3) (car calc-graph-xvalue))) | |
| 781 | calc-graph-yp (nconc calc-graph-yp (cons 0 (copy-sequence (cdr calc-graph-y3value)))) | |
| 782 | calc-graph-zp (cons '(skip) calc-graph-zp) | |
| 783 | calc-graph-y3step calc-graph-y3value | |
| 784 | var-DUMMY (car calc-graph-xvalue) | |
| 136211a9 EZ |
785 | math-working-step-2 0 |
| 786 | math-working-step (1+ math-working-step)) | |
| 68d1b30d | 787 | (while (setq calc-graph-y3step (cdr calc-graph-y3step)) |
| 136211a9 | 788 | (setq math-working-step-2 (1+ math-working-step-2) |
| 68d1b30d JB |
789 | var-DUMMY2 (car calc-graph-y3step) |
| 790 | calc-graph-zp (cons (math-evaluate-expr calc-graph-yvalue) calc-graph-zp)))) | |
| 791 | (setq calc-graph-zp (nreverse calc-graph-zp) | |
| 792 | calc-graph-numsteps (1- (* calc-graph-numsteps (1+ calc-graph-numsteps3)))))) | |
| 136211a9 EZ |
793 | |
| 794 | (defun calc-graph-format-data () | |
| 68d1b30d JB |
795 | (while (<= (setq calc-graph-stepcount (1+ calc-graph-stepcount)) calc-graph-numsteps) |
| 796 | (if calc-graph-xvec | |
| 797 | (setq calc-graph-xp (cdr calc-graph-xp) | |
| 798 | calc-graph-xval (car calc-graph-xp) | |
| 799 | calc-graph-yp (cdr calc-graph-yp) | |
| 800 | calc-graph-yval (car calc-graph-yp) | |
| 801 | calc-graph-zp (cdr calc-graph-zp) | |
| 802 | calc-graph-zval (car calc-graph-zp)) | |
| 803 | (if calc-graph-yvec | |
| 804 | (setq calc-graph-xval calc-graph-xvalue | |
| 805 | calc-graph-xvalue (math-add calc-graph-xvalue calc-graph-xstep) | |
| 806 | calc-graph-yp (cdr calc-graph-yp) | |
| 807 | calc-graph-yval (car calc-graph-yp)) | |
| 808 | (setq calc-graph-xval (car (car calc-graph-yp)) | |
| 809 | calc-graph-yval (cdr (car calc-graph-yp)) | |
| 810 | calc-graph-yp (cdr calc-graph-yp)) | |
| 811 | (if (or (not calc-graph-yp) | |
| 812 | (and calc-graph-xhigh (equal calc-graph-xval calc-graph-xhigh))) | |
| 813 | (setq calc-graph-numsteps 0)))) | |
| 814 | (if calc-graph-is-splot | |
| 815 | (if (and (eq (car-safe calc-graph-zval) 'calcFunc-xyz) | |
| 816 | (= (length calc-graph-zval) 4)) | |
| 817 | (setq calc-graph-xval (nth 1 calc-graph-zval) | |
| 818 | calc-graph-yval (nth 2 calc-graph-zval) | |
| 819 | calc-graph-zval (nth 3 calc-graph-zval))) | |
| 820 | (if (and (eq (car-safe calc-graph-yval) 'calcFunc-xyz) | |
| 821 | (= (length calc-graph-yval) 4)) | |
| 136211a9 | 822 | (progn |
| 68d1b30d | 823 | (or calc-graph-surprise-splot |
| 136211a9 EZ |
824 | (save-excursion |
| 825 | (set-buffer (get-buffer-create "*Gnuplot Temp*")) | |
| 826 | (save-excursion | |
| 827 | (goto-char (point-max)) | |
| 828 | (re-search-backward "^plot[ \t]") | |
| 829 | (insert "set parametric\ns") | |
| 68d1b30d JB |
830 | (setq calc-graph-surprise-splot t)))) |
| 831 | (setq calc-graph-xval (nth 1 calc-graph-yval) | |
| 832 | calc-graph-zval (nth 3 calc-graph-yval) | |
| 833 | calc-graph-yval (nth 2 calc-graph-yval))) | |
| 834 | (if (and (eq (car-safe calc-graph-yval) 'calcFunc-xy) | |
| 835 | (= (length calc-graph-yval) 3)) | |
| 836 | (setq calc-graph-xval (nth 1 calc-graph-yval) | |
| 837 | calc-graph-yval (nth 2 calc-graph-yval))))) | |
| 838 | (if (and (Math-realp calc-graph-xval) | |
| 839 | (Math-realp calc-graph-yval) | |
| 840 | (or (not calc-graph-zval) (Math-realp calc-graph-zval))) | |
| 136211a9 | 841 | (progn |
| 68d1b30d JB |
842 | (setq calc-graph-blank nil |
| 843 | calc-graph-non-blank t) | |
| 844 | (if (Math-integerp calc-graph-xval) | |
| 845 | (insert (math-format-number calc-graph-xval)) | |
| 846 | (if (eq (car calc-graph-xval) 'frac) | |
| 847 | (setq calc-graph-xval (math-float calc-graph-xval))) | |
| 848 | (insert (math-format-number (nth 1 calc-graph-xval)) | |
| 849 | "e" (int-to-string (nth 2 calc-graph-xval)))) | |
| 136211a9 | 850 | (insert " ") |
| 68d1b30d JB |
851 | (if (Math-integerp calc-graph-yval) |
| 852 | (insert (math-format-number calc-graph-yval)) | |
| 853 | (if (eq (car calc-graph-yval) 'frac) | |
| 854 | (setq calc-graph-yval (math-float calc-graph-yval))) | |
| 855 | (insert (math-format-number (nth 1 calc-graph-yval)) | |
| 856 | "e" (int-to-string (nth 2 calc-graph-yval)))) | |
| 857 | (if calc-graph-zval | |
| 136211a9 EZ |
858 | (progn |
| 859 | (insert " ") | |
| 68d1b30d JB |
860 | (if (Math-integerp calc-graph-zval) |
| 861 | (insert (math-format-number calc-graph-zval)) | |
| 862 | (if (eq (car calc-graph-zval) 'frac) | |
| 863 | (setq calc-graph-zval (math-float calc-graph-zval))) | |
| 864 | (insert (math-format-number (nth 1 calc-graph-zval)) | |
| 865 | "e" (int-to-string (nth 2 calc-graph-zval)))))) | |
| 136211a9 | 866 | (insert "\n")) |
| 68d1b30d | 867 | (and (not (equal calc-graph-zval '(skip))) |
| be625312 | 868 | (boundp 'var-PlotRejects) |
| 136211a9 EZ |
869 | (eq (car-safe var-PlotRejects) 'vec) |
| 870 | (nconc var-PlotRejects | |
| 871 | (list (list 'vec | |
| 68d1b30d JB |
872 | calc-graph-curve-num |
| 873 | calc-graph-stepcount | |
| 874 | calc-graph-xval calc-graph-yval))) | |
| 136211a9 | 875 | (calc-refresh-evaltos 'var-PlotRejects)) |
| 68d1b30d | 876 | (or calc-graph-blank |
| 136211a9 EZ |
877 | (progn |
| 878 | (insert "\n") | |
| 68d1b30d | 879 | (setq calc-graph-blank t)))))) |
| 136211a9 EZ |
880 | |
| 881 | (defun calc-temp-file-name (num) | |
| 882 | (while (<= (length calc-graph-file-cache) (1+ num)) | |
| 883 | (setq calc-graph-file-cache (nconc calc-graph-file-cache (list nil)))) | |
| 884 | (car (or (nth (1+ num) calc-graph-file-cache) | |
| 885 | (setcar (nthcdr (1+ num) calc-graph-file-cache) | |
| 2c37c14b | 886 | (list (make-temp-file |
| 136211a9 EZ |
887 | (concat calc-gnuplot-tempfile |
| 888 | (if (<= num 0) | |
| 889 | (char-to-string (- ?A num)) | |
| 890 | (int-to-string num)))) | |
| bf77c646 | 891 | nil))))) |
| 136211a9 EZ |
892 | |
| 893 | (defun calc-graph-delete-temps () | |
| 894 | (while calc-graph-file-cache | |
| 895 | (and (car calc-graph-file-cache) | |
| 896 | (file-exists-p (car (car calc-graph-file-cache))) | |
| 897 | (condition-case err | |
| 898 | (delete-file (car (car calc-graph-file-cache))) | |
| 899 | (error nil))) | |
| bf77c646 | 900 | (setq calc-graph-file-cache (cdr calc-graph-file-cache)))) |
| 136211a9 EZ |
901 | |
| 902 | (defun calc-graph-kill-hook () | |
| 68d1b30d | 903 | (calc-graph-delete-temps)) |
| 136211a9 EZ |
904 | |
| 905 | (defun calc-graph-show-tty (output) | |
| 906 | "Default calc-gnuplot-plot-command for \"tty\" output mode. | |
| 907 | This is useful for tek40xx and other graphics-terminal types." | |
| 908 | (call-process-region 1 1 shell-file-name | |
| 909 | nil calc-gnuplot-buffer nil | |
| bf77c646 | 910 | "-c" (format "cat %s >/dev/tty; rm %s" output output))) |
| 136211a9 | 911 | |
| 68d1b30d JB |
912 | (defvar calc-dumb-map nil |
| 913 | "The keymap for the \"dumb\" terminal plot.") | |
| 914 | ||
| 136211a9 EZ |
915 | (defun calc-graph-show-dumb (&optional output) |
| 916 | "Default calc-gnuplot-plot-command for Pinard's \"dumb\" terminal type. | |
| 917 | This \"dumb\" driver will be present in Gnuplot 3.0." | |
| 918 | (interactive) | |
| 919 | (save-window-excursion | |
| 920 | (switch-to-buffer calc-gnuplot-buffer) | |
| 921 | (delete-other-windows) | |
| 922 | (goto-char calc-gnuplot-trail-mark) | |
| 923 | (or (search-forward "\f" nil t) | |
| 924 | (sleep-for 1)) | |
| 925 | (goto-char (point-max)) | |
| 926 | (re-search-backward "\f\\|^[ \t]+\\^$\\|G N U P L O T") | |
| 136211a9 EZ |
927 | (if (looking-at "\f") |
| 928 | (progn | |
| 929 | (forward-char 1) | |
| 930 | (if (eolp) (forward-line 1)) | |
| 931 | (or (calc-graph-find-command "time") | |
| 932 | (calc-graph-find-command "title") | |
| 933 | (calc-graph-find-command "ylabel") | |
| 934 | (let ((pt (point))) | |
| 935 | (insert-before-markers (format "(%s)" (current-time-string))) | |
| 936 | (goto-char pt))) | |
| 937 | (set-window-start (selected-window) (point)) | |
| 938 | (goto-char (point-max))) | |
| 939 | (end-of-line) | |
| 940 | (backward-char 1) | |
| 941 | (recenter '(4))) | |
| 68d1b30d | 942 | (or calc-dumb-map |
| 136211a9 EZ |
943 | (progn |
| 944 | (setq calc-dumb-map (make-sparse-keymap)) | |
| 945 | (define-key calc-dumb-map "\n" 'scroll-up) | |
| 946 | (define-key calc-dumb-map " " 'scroll-up) | |
| 947 | (define-key calc-dumb-map "\177" 'scroll-down) | |
| 948 | (define-key calc-dumb-map "<" 'scroll-left) | |
| 949 | (define-key calc-dumb-map ">" 'scroll-right) | |
| 950 | (define-key calc-dumb-map "{" 'scroll-down) | |
| 951 | (define-key calc-dumb-map "}" 'scroll-up) | |
| 952 | (define-key calc-dumb-map "q" 'exit-recursive-edit) | |
| 953 | (define-key calc-dumb-map "\C-c\C-c" 'exit-recursive-edit))) | |
| 954 | (use-local-map calc-dumb-map) | |
| 955 | (setq truncate-lines t) | |
| 7c31514a | 956 | (message "Type `q' or `C-c C-c' to return to Calc") |
| 136211a9 | 957 | (recursive-edit) |
| bf77c646 | 958 | (bury-buffer "*Gnuplot Trail*"))) |
| 136211a9 EZ |
959 | |
| 960 | (defun calc-graph-clear () | |
| 961 | (interactive) | |
| 962 | (if calc-graph-last-device | |
| 963 | (if (or (equal calc-graph-last-device "x11") | |
| 964 | (equal calc-graph-last-device "X11")) | |
| 965 | (calc-gnuplot-command "set output" | |
| 966 | (if (equal calc-graph-last-output "STDOUT") | |
| 967 | "" | |
| 968 | (prin1-to-string calc-graph-last-output))) | |
| bf77c646 | 969 | (calc-gnuplot-command "clear")))) |
| 136211a9 EZ |
970 | |
| 971 | (defun calc-graph-title-x (title) | |
| 972 | (interactive "sX axis title: ") | |
| 973 | (calc-graph-set-command "xlabel" (if (not (equal title "")) | |
| bf77c646 | 974 | (prin1-to-string title)))) |
| 136211a9 EZ |
975 | |
| 976 | (defun calc-graph-title-y (title) | |
| 977 | (interactive "sY axis title: ") | |
| 978 | (calc-graph-set-command "ylabel" (if (not (equal title "")) | |
| bf77c646 | 979 | (prin1-to-string title)))) |
| 136211a9 EZ |
980 | |
| 981 | (defun calc-graph-title-z (title) | |
| 982 | (interactive "sZ axis title: ") | |
| 983 | (calc-graph-set-command "zlabel" (if (not (equal title "")) | |
| bf77c646 | 984 | (prin1-to-string title)))) |
| 136211a9 EZ |
985 | |
| 986 | (defun calc-graph-range-x (range) | |
| 987 | (interactive "sX axis range: ") | |
| bf77c646 | 988 | (calc-graph-set-range "xrange" range)) |
| 136211a9 EZ |
989 | |
| 990 | (defun calc-graph-range-y (range) | |
| 991 | (interactive "sY axis range: ") | |
| bf77c646 | 992 | (calc-graph-set-range "yrange" range)) |
| 136211a9 EZ |
993 | |
| 994 | (defun calc-graph-range-z (range) | |
| 995 | (interactive "sZ axis range: ") | |
| bf77c646 | 996 | (calc-graph-set-range "zrange" range)) |
| 136211a9 EZ |
997 | |
| 998 | (defun calc-graph-set-range (cmd range) | |
| 999 | (if (equal range "$") | |
| 1000 | (calc-wrapper | |
| 1001 | (let ((val (calc-top-n 1))) | |
| 1002 | (if (and (eq (car-safe val) 'intv) (math-constp val)) | |
| 1003 | (setq range (concat | |
| 1004 | (math-format-number (math-float (nth 2 val))) ":" | |
| 1005 | (math-format-number (math-float (nth 3 val))))) | |
| 1006 | (if (and (eq (car-safe val) 'vec) | |
| 1007 | (= (length val) 3)) | |
| 1008 | (setq range (concat | |
| 1009 | (math-format-number (math-float (nth 1 val))) ":" | |
| 1010 | (math-format-number (math-float (nth 2 val))))) | |
| 1011 | (error "Range specification must be an interval or 2-vector"))) | |
| 1012 | (calc-pop-stack 1)))) | |
| 1013 | (if (string-match "\\[.+\\]" range) | |
| 1014 | (setq range (substring range 1 -1))) | |
| 1015 | (if (and (not (string-match ":" range)) | |
| 1016 | (or (string-match "," range) | |
| 1017 | (string-match " " range))) | |
| 1018 | (aset range (match-beginning 0) ?\:)) | |
| 1019 | (calc-graph-set-command cmd (if (not (equal range "")) | |
| bf77c646 | 1020 | (concat "[" range "]")))) |
| 136211a9 EZ |
1021 | |
| 1022 | (defun calc-graph-log-x (flag) | |
| 1023 | (interactive "P") | |
| bf77c646 | 1024 | (calc-graph-set-log flag 0 0)) |
| 136211a9 EZ |
1025 | |
| 1026 | (defun calc-graph-log-y (flag) | |
| 1027 | (interactive "P") | |
| bf77c646 | 1028 | (calc-graph-set-log 0 flag 0)) |
| 136211a9 EZ |
1029 | |
| 1030 | (defun calc-graph-log-z (flag) | |
| 1031 | (interactive "P") | |
| bf77c646 | 1032 | (calc-graph-set-log 0 0 flag)) |
| 136211a9 EZ |
1033 | |
| 1034 | (defun calc-graph-set-log (xflag yflag zflag) | |
| 1035 | (let* ((old (or (calc-graph-find-command "logscale") "")) | |
| 1036 | (xold (string-match "x" old)) | |
| 1037 | (yold (string-match "y" old)) | |
| 1038 | (zold (string-match "z" old)) | |
| 1039 | str) | |
| 1040 | (setq str (concat (if (if xflag | |
| 1041 | (if (eq xflag 0) xold | |
| 1042 | (> (prefix-numeric-value xflag) 0)) | |
| 1043 | (not xold)) "x" "") | |
| 1044 | (if (if yflag | |
| 1045 | (if (eq yflag 0) yold | |
| 1046 | (> (prefix-numeric-value yflag) 0)) | |
| 1047 | (not yold)) "y" "") | |
| 1048 | (if (if zflag | |
| 1049 | (if (eq zflag 0) zold | |
| 1050 | (> (prefix-numeric-value zflag) 0)) | |
| 1051 | (not zold)) "z" ""))) | |
| bf77c646 | 1052 | (calc-graph-set-command "logscale" (if (not (equal str "")) str)))) |
| 136211a9 EZ |
1053 | |
| 1054 | (defun calc-graph-line-style (style) | |
| 1055 | (interactive "P") | |
| bf77c646 | 1056 | (calc-graph-set-styles (and style (prefix-numeric-value style)) t)) |
| 136211a9 EZ |
1057 | |
| 1058 | (defun calc-graph-point-style (style) | |
| 1059 | (interactive "P") | |
| bf77c646 | 1060 | (calc-graph-set-styles t (and style (prefix-numeric-value style)))) |
| 136211a9 EZ |
1061 | |
| 1062 | (defun calc-graph-set-styles (lines points) | |
| 1063 | (calc-graph-init) | |
| 1064 | (save-excursion | |
| 1065 | (set-buffer calc-gnuplot-input) | |
| 1066 | (or (calc-graph-find-plot nil nil) | |
| 1067 | (error "No data points have been set!")) | |
| 1068 | (let ((base (point)) | |
| 1069 | (mode nil) (lstyle nil) (pstyle nil) | |
| 1070 | start end lenbl penbl) | |
| 1071 | (re-search-forward "[,\n]") | |
| 1072 | (forward-char -1) | |
| 1073 | (setq end (point) start end) | |
| 1074 | (goto-char base) | |
| 1075 | (if (looking-at "[^,\n]*[^,\n \t]\\([ \t]+with\\)") | |
| 1076 | (progn | |
| 1077 | (setq start (match-beginning 1)) | |
| 1078 | (goto-char (match-end 0)) | |
| 1079 | (if (looking-at "[ \t]+\\([a-z]+\\)") | |
| 1080 | (setq mode (buffer-substring (match-beginning 1) | |
| 1081 | (match-end 1)))) | |
| 1082 | (if (looking-at "[ \ta-z]+\\([0-9]+\\)") | |
| 723c2377 | 1083 | (setq lstyle (string-to-number |
| 136211a9 EZ |
1084 | (buffer-substring (match-beginning 1) |
| 1085 | (match-end 1))))) | |
| 1086 | (if (looking-at "[ \ta-z]+[0-9]+[ \t]+\\([0-9]+\\)") | |
| 723c2377 | 1087 | (setq pstyle (string-to-number |
| 136211a9 EZ |
1088 | (buffer-substring (match-beginning 1) |
| 1089 | (match-end 1))))))) | |
| 1090 | (setq lenbl (or (equal mode "lines") (equal mode "linespoints")) | |
| 1091 | penbl (or (equal mode "points") (equal mode "linespoints"))) | |
| 1092 | (if lines | |
| 1093 | (or (eq lines t) | |
| 1094 | (setq lstyle lines | |
| 1095 | lenbl (>= lines 0))) | |
| 1096 | (setq lenbl (not lenbl))) | |
| 1097 | (if points | |
| 1098 | (or (eq points t) | |
| 1099 | (setq pstyle points | |
| 1100 | penbl (>= points 0))) | |
| 1101 | (setq penbl (not penbl))) | |
| 1102 | (delete-region start end) | |
| 1103 | (goto-char start) | |
| 1104 | (insert " with " | |
| 1105 | (if lenbl | |
| 1106 | (if penbl "linespoints" "lines") | |
| 1107 | (if penbl "points" "dots"))) | |
| 1108 | (if (and pstyle (> pstyle 0)) | |
| 1109 | (insert " " (if (and lstyle (> lstyle 0)) (int-to-string lstyle) "1") | |
| 1110 | " " (int-to-string pstyle)) | |
| 1111 | (if (and lstyle (> lstyle 0)) | |
| 1112 | (insert " " (int-to-string lstyle)))))) | |
| bf77c646 | 1113 | (calc-graph-view-commands)) |
| 136211a9 EZ |
1114 | |
| 1115 | (defun calc-graph-zero-x (flag) | |
| 1116 | (interactive "P") | |
| 1117 | (calc-graph-set-command "noxzeroaxis" | |
| 1118 | (and (if flag | |
| 1119 | (<= (prefix-numeric-value flag) 0) | |
| 1120 | (not (calc-graph-find-command "noxzeroaxis"))) | |
| bf77c646 | 1121 | " "))) |
| 136211a9 EZ |
1122 | |
| 1123 | (defun calc-graph-zero-y (flag) | |
| 1124 | (interactive "P") | |
| 1125 | (calc-graph-set-command "noyzeroaxis" | |
| 1126 | (and (if flag | |
| 1127 | (<= (prefix-numeric-value flag) 0) | |
| 1128 | (not (calc-graph-find-command "noyzeroaxis"))) | |
| bf77c646 | 1129 | " "))) |
| 136211a9 EZ |
1130 | |
| 1131 | (defun calc-graph-name (name) | |
| 1132 | (interactive "sTitle for current curve: ") | |
| 1133 | (calc-graph-init) | |
| 1134 | (save-excursion | |
| 1135 | (set-buffer calc-gnuplot-input) | |
| 1136 | (or (calc-graph-find-plot nil nil) | |
| 1137 | (error "No data points have been set!")) | |
| 1138 | (let ((base (point)) | |
| 68d1b30d JB |
1139 | start |
| 1140 | end) | |
| 136211a9 EZ |
1141 | (re-search-forward "[,\n]\\|[ \t]+with") |
| 1142 | (setq end (match-beginning 0)) | |
| 1143 | (goto-char base) | |
| 1144 | (if (looking-at "[^,\n]*[^,\n \t]\\([ \t]+title\\)") | |
| 1145 | (progn | |
| 1146 | (goto-char (match-beginning 1)) | |
| 1147 | (delete-region (point) end)) | |
| 1148 | (goto-char end)) | |
| 1149 | (insert " title " (prin1-to-string name)))) | |
| bf77c646 | 1150 | (calc-graph-view-commands)) |
| 136211a9 EZ |
1151 | |
| 1152 | (defun calc-graph-hide (flag) | |
| 1153 | (interactive "P") | |
| 1154 | (calc-graph-init) | |
| 1155 | (and (calc-graph-find-plot nil nil) | |
| 1156 | (progn | |
| 1157 | (or (looking-at "{") | |
| 1158 | (error "Can't hide this curve (wrong format)")) | |
| 1159 | (forward-char 1) | |
| 1160 | (if (looking-at "*") | |
| 1161 | (if (or (null flag) (<= (prefix-numeric-value flag) 0)) | |
| 1162 | (delete-char 1)) | |
| 1163 | (if (or (null flag) (> (prefix-numeric-value flag) 0)) | |
| bf77c646 | 1164 | (insert "*")))))) |
| 136211a9 EZ |
1165 | |
| 1166 | (defun calc-graph-header (title) | |
| 1167 | (interactive "sTitle for entire graph: ") | |
| 1168 | (calc-graph-set-command "title" (if (not (equal title "")) | |
| bf77c646 | 1169 | (prin1-to-string title)))) |
| 136211a9 EZ |
1170 | |
| 1171 | (defun calc-graph-border (flag) | |
| 1172 | (interactive "P") | |
| 1173 | (calc-graph-set-command "noborder" | |
| 1174 | (and (if flag | |
| 1175 | (<= (prefix-numeric-value flag) 0) | |
| 1176 | (not (calc-graph-find-command "noborder"))) | |
| bf77c646 | 1177 | " "))) |
| 136211a9 EZ |
1178 | |
| 1179 | (defun calc-graph-grid (flag) | |
| 1180 | (interactive "P") | |
| 1181 | (calc-graph-set-command "grid" (and (if flag | |
| 1182 | (> (prefix-numeric-value flag) 0) | |
| 1183 | (not (calc-graph-find-command "grid"))) | |
| bf77c646 | 1184 | " "))) |
| 136211a9 EZ |
1185 | |
| 1186 | (defun calc-graph-key (flag) | |
| 1187 | (interactive "P") | |
| 1188 | (calc-graph-set-command "key" (and (if flag | |
| 1189 | (> (prefix-numeric-value flag) 0) | |
| 1190 | (not (calc-graph-find-command "key"))) | |
| bf77c646 | 1191 | " "))) |
| 136211a9 EZ |
1192 | |
| 1193 | (defun calc-graph-num-points (res flag) | |
| 1194 | (interactive "sNumber of data points: \nP") | |
| 1195 | (if flag | |
| 1196 | (if (> (prefix-numeric-value flag) 0) | |
| 1197 | (if (equal res "") | |
| 3132f345 | 1198 | (message "Default resolution is %d" |
| 136211a9 | 1199 | calc-graph-default-resolution) |
| 723c2377 | 1200 | (setq calc-graph-default-resolution (string-to-number res))) |
| 136211a9 | 1201 | (if (equal res "") |
| 3132f345 | 1202 | (message "Default 3D resolution is %d" |
| 136211a9 | 1203 | calc-graph-default-resolution-3d) |
| 723c2377 | 1204 | (setq calc-graph-default-resolution-3d (string-to-number res)))) |
| bf77c646 | 1205 | (calc-graph-set-command "samples" (if (not (equal res "")) res)))) |
| 136211a9 EZ |
1206 | |
| 1207 | (defun calc-graph-device (name flag) | |
| 1208 | (interactive "sDevice name: \nP") | |
| 1209 | (if (equal name "?") | |
| 1210 | (progn | |
| 1211 | (calc-gnuplot-command "set terminal") | |
| 1212 | (calc-graph-view-trail)) | |
| 1213 | (if flag | |
| 1214 | (if (> (prefix-numeric-value flag) 0) | |
| 1215 | (if (equal name "") | |
| 3132f345 | 1216 | (message "Default GNUPLOT device is \"%s\"" |
| 136211a9 EZ |
1217 | calc-gnuplot-default-device) |
| 1218 | (setq calc-gnuplot-default-device name)) | |
| 1219 | (if (equal name "") | |
| 3132f345 | 1220 | (message "GNUPLOT device for Print command is \"%s\"" |
| 136211a9 EZ |
1221 | calc-gnuplot-print-device) |
| 1222 | (setq calc-gnuplot-print-device name))) | |
| 1223 | (calc-graph-set-command "terminal" (if (not (equal name "")) | |
| bf77c646 | 1224 | name))))) |
| 136211a9 EZ |
1225 | |
| 1226 | (defun calc-graph-output (name flag) | |
| 1227 | (interactive "FOutput file name: \np") | |
| 1228 | (cond ((string-match "\\<[aA][uU][tT][oO]$" name) | |
| 1229 | (setq name "auto")) | |
| 1230 | ((string-match "\\<[tT][tT][yY]$" name) | |
| 1231 | (setq name "tty")) | |
| 1232 | ((string-match "\\<[sS][tT][dD][oO][uU][tT]$" name) | |
| 1233 | (setq name "STDOUT")) | |
| 1234 | ((equal (file-name-nondirectory name) "") | |
| 1235 | (setq name "")) | |
| 1236 | (t (setq name (expand-file-name name)))) | |
| 1237 | (if flag | |
| 1238 | (if (> (prefix-numeric-value flag) 0) | |
| 1239 | (if (equal name "") | |
| 3132f345 | 1240 | (message "Default GNUPLOT output file is \"%s\"" |
| 136211a9 EZ |
1241 | calc-gnuplot-default-output) |
| 1242 | (setq calc-gnuplot-default-output name)) | |
| 1243 | (if (equal name "") | |
| 3132f345 | 1244 | (message "GNUPLOT output file for Print command is \"%s\"" |
| 136211a9 EZ |
1245 | calc-gnuplot-print-output) |
| 1246 | (setq calc-gnuplot-print-output name))) | |
| 1247 | (calc-graph-set-command "output" (if (not (equal name "")) | |
| bf77c646 | 1248 | (prin1-to-string name))))) |
| 136211a9 EZ |
1249 | |
| 1250 | (defun calc-graph-display (name) | |
| 1251 | (interactive "sX display name: ") | |
| 1252 | (if (equal name "") | |
| 3132f345 | 1253 | (message "Current X display is \"%s\"" |
| 136211a9 EZ |
1254 | (or calc-gnuplot-display "<none>")) |
| 1255 | (setq calc-gnuplot-display name) | |
| 1256 | (if (calc-gnuplot-alive) | |
| bf77c646 | 1257 | (calc-gnuplot-command "exit")))) |
| 136211a9 EZ |
1258 | |
| 1259 | (defun calc-graph-geometry (name) | |
| 1260 | (interactive "sX geometry spec (or \"default\"): ") | |
| 1261 | (if (equal name "") | |
| 3132f345 | 1262 | (message "Current X geometry is \"%s\"" |
| 136211a9 EZ |
1263 | (or calc-gnuplot-geometry "default")) |
| 1264 | (setq calc-gnuplot-geometry (and (not (equal name "default")) name)) | |
| 1265 | (if (calc-gnuplot-alive) | |
| bf77c646 | 1266 | (calc-gnuplot-command "exit")))) |
| 136211a9 EZ |
1267 | |
| 1268 | (defun calc-graph-find-command (cmd) | |
| 1269 | (calc-graph-init) | |
| 1270 | (save-excursion | |
| 1271 | (set-buffer calc-gnuplot-input) | |
| 1272 | (goto-char (point-min)) | |
| 1273 | (if (re-search-forward (concat "^set[ \t]+" cmd "[ \t]*\\(.*\\)$") nil t) | |
| bf77c646 | 1274 | (buffer-substring (match-beginning 1) (match-end 1))))) |
| 136211a9 EZ |
1275 | |
| 1276 | (defun calc-graph-set-command (cmd &rest args) | |
| 1277 | (calc-graph-init) | |
| 1278 | (save-excursion | |
| 1279 | (set-buffer calc-gnuplot-input) | |
| 1280 | (goto-char (point-min)) | |
| 1281 | (if (re-search-forward (concat "^set[ \t]+" cmd "[ \t\n]") nil t) | |
| 1282 | (progn | |
| 1283 | (forward-char -1) | |
| 1284 | (end-of-line) | |
| 1285 | (let ((end (point))) | |
| 1286 | (beginning-of-line) | |
| 1287 | (delete-region (point) (1+ end)))) | |
| 1288 | (if (calc-graph-find-plot t t) | |
| 1289 | (if (eq (preceding-char) ?\n) | |
| 1290 | (forward-char -1)) | |
| 1291 | (goto-char (1- (point-max))))) | |
| 1292 | (if (and args (car args)) | |
| 1293 | (progn | |
| 1294 | (or (bolp) | |
| 1295 | (insert "\n")) | |
| 1296 | (insert "set " (mapconcat 'identity (cons cmd args) " ") "\n")))) | |
| bf77c646 | 1297 | (calc-graph-view-commands)) |
| 136211a9 EZ |
1298 | |
| 1299 | (defun calc-graph-command (cmd) | |
| 1300 | (interactive "sGNUPLOT command: ") | |
| 1301 | (calc-wrapper | |
| 1302 | (calc-graph-init) | |
| 1303 | (calc-graph-view-trail) | |
| 1304 | (calc-gnuplot-command cmd) | |
| 1305 | (accept-process-output) | |
| bf77c646 | 1306 | (calc-graph-view-trail))) |
| 136211a9 EZ |
1307 | |
| 1308 | (defun calc-graph-kill (&optional no-view) | |
| 1309 | (interactive) | |
| 1310 | (calc-graph-delete-temps) | |
| 1311 | (if (calc-gnuplot-alive) | |
| 1312 | (calc-wrapper | |
| 1313 | (or no-view (calc-graph-view-trail)) | |
| 1314 | (let ((calc-graph-no-wait t)) | |
| 1315 | (calc-gnuplot-command "exit")) | |
| 1316 | (sit-for 1) | |
| 1317 | (if (process-status calc-gnuplot-process) | |
| 1318 | (delete-process calc-gnuplot-process)) | |
| bf77c646 | 1319 | (setq calc-gnuplot-process nil)))) |
| 136211a9 EZ |
1320 | |
| 1321 | (defun calc-graph-quit () | |
| 1322 | (interactive) | |
| 1323 | (if (get-buffer-window calc-gnuplot-input) | |
| 1324 | (calc-graph-view-commands t)) | |
| 1325 | (if (get-buffer-window calc-gnuplot-buffer) | |
| 1326 | (calc-graph-view-trail t)) | |
| bf77c646 | 1327 | (calc-graph-kill t)) |
| 136211a9 EZ |
1328 | |
| 1329 | (defun calc-graph-view-commands (&optional no-need) | |
| 1330 | (interactive "p") | |
| 1331 | (or calc-graph-no-auto-view (calc-graph-init-buffers)) | |
| bf77c646 | 1332 | (calc-graph-view calc-gnuplot-input calc-gnuplot-buffer (null no-need))) |
| 136211a9 EZ |
1333 | |
| 1334 | (defun calc-graph-view-trail (&optional no-need) | |
| 1335 | (interactive "p") | |
| 1336 | (or calc-graph-no-auto-view (calc-graph-init-buffers)) | |
| bf77c646 | 1337 | (calc-graph-view calc-gnuplot-buffer calc-gnuplot-input (null no-need))) |
| 136211a9 EZ |
1338 | |
| 1339 | (defun calc-graph-view (buf other-buf need) | |
| 1340 | (let (win) | |
| 1341 | (or calc-graph-no-auto-view | |
| 1342 | (if (setq win (get-buffer-window buf)) | |
| 1343 | (or need | |
| 1344 | (and (eq buf calc-gnuplot-buffer) | |
| 1345 | (save-excursion | |
| 1346 | (set-buffer buf) | |
| 1347 | (not (pos-visible-in-window-p (point-max) win)))) | |
| 1348 | (progn | |
| 1349 | (bury-buffer buf) | |
| 1350 | (bury-buffer other-buf) | |
| 1351 | (let ((curwin (selected-window))) | |
| 1352 | (select-window win) | |
| 1353 | (switch-to-buffer nil) | |
| 1354 | (select-window curwin)))) | |
| 1355 | (if (setq win (get-buffer-window other-buf)) | |
| 1356 | (set-window-buffer win buf) | |
| 1357 | (if (eq major-mode 'calc-mode) | |
| 1358 | (if (or need | |
| 8f66f479 | 1359 | (< (window-height) (1- (frame-height)))) |
| 136211a9 EZ |
1360 | (display-buffer buf)) |
| 1361 | (switch-to-buffer buf))))) | |
| 1362 | (save-excursion | |
| 1363 | (set-buffer buf) | |
| 1364 | (if (and (eq buf calc-gnuplot-buffer) | |
| 1365 | (setq win (get-buffer-window buf)) | |
| 1366 | (not (pos-visible-in-window-p (point-max) win))) | |
| 1367 | (progn | |
| 1368 | (goto-char (point-max)) | |
| 1369 | (vertical-motion (- 6 (window-height win))) | |
| 1370 | (set-window-start win (point)) | |
| 1371 | (goto-char (point-max))))) | |
| bf77c646 | 1372 | (or calc-graph-no-auto-view (sit-for 0)))) |
| 136211a9 EZ |
1373 | |
| 1374 | (defun calc-gnuplot-check-for-errors () | |
| 1375 | (if (save-excursion | |
| 1376 | (prog2 | |
| 1377 | (progn | |
| 1378 | (set-buffer calc-gnuplot-buffer) | |
| 1379 | (goto-char calc-gnuplot-last-error-pos)) | |
| 1380 | (re-search-forward "^[ \t]+\\^$" nil t) | |
| 1381 | (goto-char (point-max)) | |
| 1382 | (setq calc-gnuplot-last-error-pos (point-max)))) | |
| bf77c646 | 1383 | (calc-graph-view-trail))) |
| 136211a9 EZ |
1384 | |
| 1385 | (defun calc-gnuplot-command (&rest args) | |
| 1386 | (calc-graph-init) | |
| 1387 | (let ((cmd (concat (mapconcat 'identity args " ") "\n"))) | |
| 1388 | (accept-process-output) | |
| 1389 | (save-excursion | |
| 1390 | (set-buffer calc-gnuplot-buffer) | |
| 1391 | (calc-gnuplot-check-for-errors) | |
| 1392 | (goto-char (point-max)) | |
| 1393 | (setq calc-gnuplot-trail-mark (point)) | |
| 1394 | (or (>= calc-gnuplot-version 3) | |
| 1395 | (insert cmd)) | |
| 1396 | (set-marker (process-mark calc-gnuplot-process) (point)) | |
| 1397 | (process-send-string calc-gnuplot-process cmd) | |
| 1398 | (if (get-buffer-window calc-gnuplot-buffer) | |
| 1399 | (calc-graph-view-trail)) | |
| 1400 | (accept-process-output (and (not calc-graph-no-wait) | |
| 1401 | calc-gnuplot-process)) | |
| 1402 | (calc-gnuplot-check-for-errors) | |
| 1403 | (if (get-buffer-window calc-gnuplot-buffer) | |
| bf77c646 | 1404 | (calc-graph-view-trail))))) |
| 136211a9 EZ |
1405 | |
| 1406 | (defun calc-graph-init-buffers () | |
| 1407 | (or (and calc-gnuplot-buffer | |
| 1408 | (buffer-name calc-gnuplot-buffer)) | |
| 1409 | (setq calc-gnuplot-buffer (get-buffer-create "*Gnuplot Trail*"))) | |
| 1410 | (or (and calc-gnuplot-input | |
| 1411 | (buffer-name calc-gnuplot-input)) | |
| bf77c646 | 1412 | (setq calc-gnuplot-input (get-buffer-create "*Gnuplot Commands*")))) |
| 136211a9 EZ |
1413 | |
| 1414 | (defun calc-graph-init () | |
| 1415 | (or (calc-gnuplot-alive) | |
| 1416 | (let ((process-connection-type t) | |
| 1417 | origin) | |
| 1418 | (if calc-gnuplot-process | |
| 1419 | (progn | |
| 1420 | (delete-process calc-gnuplot-process) | |
| 1421 | (setq calc-gnuplot-process nil))) | |
| 1422 | (calc-graph-init-buffers) | |
| 1423 | (save-excursion | |
| 1424 | (set-buffer calc-gnuplot-buffer) | |
| 1425 | (insert "\nStarting gnuplot...\n") | |
| 1426 | (setq origin (point))) | |
| 1427 | (setq calc-graph-last-device nil) | |
| 1428 | (setq calc-graph-last-output nil) | |
| 1429 | (condition-case err | |
| 1430 | (let ((args (append (and calc-gnuplot-display | |
| 1431 | (not (equal calc-gnuplot-display | |
| 1432 | (getenv "DISPLAY"))) | |
| 1433 | (list "-display" | |
| 1434 | calc-gnuplot-display)) | |
| 1435 | (and calc-gnuplot-geometry | |
| 1436 | (list "-geometry" | |
| 1437 | calc-gnuplot-geometry))))) | |
| a1506d29 | 1438 | (setq calc-gnuplot-process |
| 136211a9 EZ |
1439 | (apply 'start-process |
| 1440 | "gnuplot" | |
| 1441 | calc-gnuplot-buffer | |
| 1442 | calc-gnuplot-name | |
| 1443 | args)) | |
| 6e237e72 | 1444 | (set-process-query-on-exit-flag calc-gnuplot-process nil)) |
| 136211a9 | 1445 | (file-error |
| 3132f345 | 1446 | (error "Sorry, can't find \"%s\" on your system" |
| 136211a9 EZ |
1447 | calc-gnuplot-name))) |
| 1448 | (save-excursion | |
| 1449 | (set-buffer calc-gnuplot-buffer) | |
| 1450 | (while (and (not (save-excursion | |
| 1451 | (goto-char origin) | |
| 1452 | (search-forward "gnuplot> " nil t))) | |
| 1453 | (memq (process-status calc-gnuplot-process) '(run stop))) | |
| 1454 | (accept-process-output calc-gnuplot-process)) | |
| 1455 | (or (memq (process-status calc-gnuplot-process) '(run stop)) | |
| 3132f345 | 1456 | (error "Unable to start GNUPLOT process")) |
| 136211a9 EZ |
1457 | (if (save-excursion |
| 1458 | (goto-char origin) | |
| 1459 | (re-search-forward | |
| 1460 | "G N U P L O T.*\n.*version \\([0-9]+\\)\\." nil t)) | |
| 723c2377 | 1461 | (setq calc-gnuplot-version (string-to-number (buffer-substring |
| 136211a9 EZ |
1462 | (match-beginning 1) |
| 1463 | (match-end 1)))) | |
| 1464 | (setq calc-gnuplot-version 1)) | |
| 1465 | (goto-char (point-max))))) | |
| 1466 | (save-excursion | |
| 1467 | (set-buffer calc-gnuplot-input) | |
| 1468 | (if (= (buffer-size) 0) | |
| 1469 | (insert "# Commands for running gnuplot\n\n\n") | |
| 1470 | (or calc-graph-no-auto-view | |
| 1471 | (eq (char-after (1- (point-max))) ?\n) | |
| 1472 | (progn | |
| 1473 | (goto-char (point-max)) | |
| bf77c646 | 1474 | (insert "\n")))))) |
| 136211a9 | 1475 | |
| 808cd573 JB |
1476 | (provide 'calc-graph) |
| 1477 | ||
| ab5796a9 | 1478 | ;;; arch-tag: e4b06a52-c386-4d54-a2bb-7c0a0ef533c2 |
| bf77c646 | 1479 | ;;; calc-graph.el ends here |