Mercurial > octave
view scripts/plot/util/printd.m @ 31212:55415fa6a20f
svgconvert: Use Lossless encoding of images when available (bug #52193)
* acinclude.m4: Check that QPainter::LosslessImageRendering flag is available.
* octave-svgconvert.cc (draw): Use new flag if available.
* print.m (doc): Update word of caution about svgconvert and images.
author | Pantxo Diribarne <pantxo.diribarne@gmail.com> |
---|---|
date | Mon, 29 Aug 2022 16:36:34 +0200 |
parents | 5d3faba0342e |
children | 597f3ee61a48 |
line wrap: on
line source
######################################################################## ## ## Copyright (C) 2013-2022 The Octave Project Developers ## ## See the file COPYRIGHT.md in the top-level directory of this ## distribution or <https://octave.org/copyright/>. ## ## This file is part of Octave. ## ## Octave is free software: you can redistribute it and/or modify it ## under the terms of the GNU General Public License as published by ## the Free Software Foundation, either version 3 of the License, or ## (at your option) any later version. ## ## Octave is distributed in the hope that it will be useful, but ## WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ## GNU General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with Octave; see the file COPYING. If not, see ## <https://www.gnu.org/licenses/>. ## ######################################################################## ## -*- texinfo -*- ## @deftypefn {} {} printd (@var{obj}, @var{filename}) ## @deftypefnx {} {@var{out_file} =} printd (@dots{}) ## ## Convert any object acceptable to @code{disp} into the format selected by ## the suffix of @var{filename}. ## ## If the optional output @var{out_file} is requested, the name of the created ## file is returned. ## ## This function is intended to facilitate manipulation of the output of ## functions such as @code{stemleaf}. ## @seealso{stemleaf} ## @end deftypefn function pr_out = printd (obj, filename) ## Convert any object acceptable to disp() into various display formats. ## obj is the input object. ## filename is the output file (with required suffix). ## Extract .suffix from filename if ((sufix = rindex (filename, ".")) <= 0) error ("printd: output FILENAME '%s' requires a suffix.\nOptions are: pdf ps eps txt jpg jpeg", filename); endif opt = substr (filename, sufix+1); [pf, tempf, mag] = mkstemp (fullfile (tempdir (), "oct-XXXXXX"), true); fprintf (pf, "%s", disp (obj)); frewind (pf); ## It seems best to only use convert for image output. Its ps and pdf ## are badly rendered. opt = lower (opt); switch (opt) case "pdf" enscr = sprintf ("enscript --no-header -o %s.ps %s ; ps2pdf %s.ps %s.pdf; mv %s.pdf %s;exit", ... tempf, tempf, tempf, tempf, tempf, filename); system (enscr); delete ([tempf ".ps"]); case "ps" enscr = sprintf ("enscript --no-header -o %s %s ; exit", filename, tempf); system (enscr); case "eps" enscr = sprintf ("enscript --no-header -o %s.ps %s ; ps2eps --ignoreBB %s.ps; mv %s.eps %s; exit", ... tempf, tempf, tempf, tempf, filename); system (enscr); delete ([tempf ".ps"]); case "txt" enscr = sprintf ("cp %s %s", tempf, filename); system (enscr); case {"jpg", "jpeg"} enscr = sprintf ("convert -trim txt:%s jpg:%s", tempf, filename); system (enscr); otherwise fclose (pf); delete (tempf); error ("printd: unknown conversion type: %s.\nOptions are: pdf ps eps txt jpg jpeg", opt); endswitch fclose (pf); delete (tempf); pr_out = sprintf ("%s file %s written\n", opt, filename); endfunction %!demo %! r2 = char ( ... %! "stem step: 10, data: unsorted.", ... %! "Hinges: lo: 12, hi: 42" , ... %! " 1 | 22118" , ... %! " 2 | 28" , ... %! " 3 | 98" , ... %! " 4 | 244" , ... %! " 5 | 2" ); %! printd (r2, "test_p.txt"); %! type ("test_p.txt"); %! unlink ("test_p.txt"); %!test %! r2 = char ( %! "stem step: 10, data: unsorted.", %! "Hinges: lo: 12, hi: 42" , %! " 1 | 22118" , %! " 2 | 28" , %! " 3 | 98" , %! " 4 | 244" , %! " 5 | 2" ); %! unwind_protect %! filename = [tempname() ".txt"]; %! printd (r2, filename); %! r4 = fileread (filename); %! r2 = disp (r2); %! assert (r4, r2); %! unwind_protect_cleanup %! unlink (filename); %! end_unwind_protect