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|
;
; module providing gwave support for plot/export using GNUPlot
; as the backend.
;
(define-module (app gwave export-gnuplot)
:use-module (gnome-2)
:use-module (gnome gtk)
:use-module (ice-9 optargs)
:use-module (ice-9 format)
:use-module (app gwave cmds)
:use-module (app gwave export)
:use-module (app gwave utils)
:use-module (app gwave gtk-helpers)
)
(read-set! keywords 'prefix)
(debug-enable 'backtrace)
(debug-enable 'debug)
; Build a sub-dialog for gnu GRAPH plot options
; Returns a list of two items:
; - A GtkWidget for the notebook pannel of the dialog.
; - A procedure, which when called, will return
; a plot options list. The plot options list will be
; passed unchanged to the export procedure.
(define (build-plot-panel)
(let* ((frame (gtk-frame-new "GNUPlot"))
(vbox (gtk-vbox-new #f 5))
(opt-format "postscript")
(format-optmenu (build-option-menu
(lambda (f) (set! opt-format f))
(list
'("Postscript" . "postscript")
'("Computer Graphics Metafile" . "cgm")
'("Drawing Exchange Format" . "dxf")
'("Fig" . "fig")
'("GPIC" . "gpic")
'("HPGL" . "hpgl")
'("LaTeX" . "latex")
'("LaTeX Picture \\Specials" . "pslatex")
'("LaTeX Picture PSTricks" . "pstricks")
'("LaTeX TPic \\Specials" . "tpic")
'("Maker Interchange Format" . "mif")
'("Metafont" . "mf")
'("Plain TeX Picture \\Specials" . "pstex")
'("Portable Anymap" . "pbm")
'("Portable Network Graphics" . "png")
'("Postscript EPS" . "postscript eps")
'("Scalable Vector Graphics" . "svg")
; '("X11" . "x11")
)))
(landscape-hbox (gtk-hbox-new #f 0))
(opt-landscape #f)
; landscape option to gnuplot doesn't seem to do anything
; (landscape-rbtns (build-radiobutton-box
; landscape-hbox
; (lambda (v) (set! opt-landscape v))
; (list '("Portrait" . #f)
; '("Landscape" . #t))))
(opt-color #f)
(color-rbtns (build-radiobutton-box
(gtk-hbox-new #f 0)
(lambda (v) (set! opt-color v))
(list '("Greyscale" . #f)
'("Color" . #t) )))
(multiplot-check (gtk-check-button-new-with-label "Multiplot"))
)
(gtk-container-set-border-width frame 10)
; (gtk-widget-set-usize frame 200 150)
(gtk-widget-show frame)
(gtk-container-add frame vbox)
(gtk-box-pack-start vbox format-optmenu #f #f 0)
; (gtk-box-pack-start vbox landscape-rbtns #f #f 0)
; (gtk-widget-show landscape-rbtns)
(gtk-box-pack-start vbox color-rbtns #f #f 0)
(gtk-widget-show color-rbtns)
(gtk-box-pack-start vbox multiplot-check #f #f 0)
(gtk-widget-show multiplot-check)
(gtk-toggle-button-set-active multiplot-check #t)
(gtk-widget-show vbox)
; return list containing top-level frame and procedure
(list frame
; options-procedure returns a list consisting of a fixed-length
; set of booleans followed by any number of strings that become
; the preamble for the gnuplot script
(lambda ()
(append (list
(gtk-toggle-button-get-active multiplot-check)
(format #f "set terminal ~a~a" opt-format
(if opt-color " color" "")
; (if opt-landscape " landscape" "")
)))))
))
; export a wavepanel's data in the format needed by gnu graph's
; "a" input format.
(define (export-wavepanel-to-ggfile f wp)
(let ((p (open f (logior O_WRONLY O_CREAT O_TRUNC) #o0777))
(minx (wtable-start-xval))
(maxx (wtable-end-xval)))
(for-each (lambda (vw)
(export-variables (cons vw '()) p minx maxx)
(display "\n" p))
(wavepanel-visiblewaves wp))
(close-port p)
))
;
; generate hardcopy or documentary representation of the displayed
; waveforms on one or more wavepanels, using gnuplot as
; the formatting backend.
;
(define (plot-wavepanels fname panellist options keeptmp)
(let* ((multiplot (car options))
(preamble (append (list-copy (cdr options)) ))
(shfile (format #f "~a.gnuplot" (filter-metachars fname)))
(tmpbase (filter-metachars fname))
(tmpfilelist (list shfile))
(npanels (length panellist))
(minx (wtable-start-xval))
(maxx (wtable-end-xval))
(pidx 0)
(widx 0))
(with-output-to-file shfile
(lambda ()
(format #t "~a\n" (join "\n" preamble))
(format #t "set output \"~a\"\n" fname)
(if multiplot
(format #t "set multiplot\nset size 1,~f\n" (exact->inexact (/ 1 npanels))))
(if (wtable-xlogscale?)
(display "set logscale x"))
(display "\n")
(for-each
(lambda (wp)
(let ((plotlines '())
(wavelist (wavepanel-visiblewaves wp)))
(if (< 0 (length wavelist))
(begin
(if multiplot
(format #t "set origin 0,~f\n" (* (- (- npanels 1) pidx) (exact->inexact (/ 1 npanels)))))
(if (wavepanel-ylogscale? wp)
(display "set logscale y\n")
(display "set nologscale y\n"))
(for-each
(lambda (vw)
(let* ((f (format #f "~a.~s" tmpbase widx))
(p (open f (logior O_WRONLY O_CREAT O_TRUNC) #o0777)))
(export-variables (cons vw '()) p minx maxx)
(set! plotlines (append plotlines (list
(format #f " \"~a\" using 1:2 title \"~a\" with lines"
f (visiblewave-varname vw) ))))
(set! tmpfilelist (cons f tmpfilelist))
(close-port p)
(set! widx (+ 1 widx))))
wavelist)
(format #t "plot ~a\n\n" (join ", \\\n" plotlines))
)))
(set! pidx (+ 1 pidx))
)
panellist)
(if (not keeptmp)
(format #t "! rm -f ~a\n" (join " " tmpfilelist)))
))
; (format #t "plot-gnuplot cmdfile=~s tmpfilelist=~s\n" shfile tmpfilelist)
(subprocess-to-file #f "gnuplot" (list "gnuplot" shfile))
))
(register-plotfilter "GNUPlot"
build-plot-panel plot-wavepanels)
|
