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comparison doc/interpreter/geometryimages.m @ 20370:b439ccc9a162

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doc: Improve building of images for the Manual. Switch to using 'qt' as the default toolkit. Stop producing onscreen flicker when building images. Correctly build extended.pdf with new non-recursive build system. * plot.txi: Change sample code for generation of image 15.7 to match the code in plotimages.m * geometryimages.m, sparseimages.m, interpimages.m, splineimages.m: Call new function set_graphics_toolkit which makes sure there is at least something available to do plotting with. Change hide_output() function to call figure() directly with "visible", "off" properties passed to it so there is never a moment when the figure is visible (stops flicker). * plotimages.m: Change directory to working directory where documentation files are kept before executing print with "-pdflatexstandalone". Call pdflatex from within the working directory since that is what it expects. Clean up after pdflatex by deleting auxiliary files. Capture status and output of system command which invokes pdflatex so that it does not spew in to the logs. Change text() command to use '\displaystyle' which looks nicer. Add set_graphics_toolkit function and modify hide_output function as above.
author Rik <rik@octave.org>
date Sun, 12 Jul 2015 15:00:26 -0700
parents d8992a16643c
children
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20369:07dd8e602f4e 20370:b439ccc9a162
15 ## You should have received a copy of the GNU General Public License 15 ## You should have received a copy of the GNU General Public License
16 ## along with Octave; see the file COPYING. If not, see 16 ## along with Octave; see the file COPYING. If not, see
17 ## <http://www.gnu.org/licenses/>. 17 ## <http://www.gnu.org/licenses/>.
18 18
19 function geometryimages (d, nm, typ) 19 function geometryimages (d, nm, typ)
20 graphics_toolkit ("gnuplot"); 20 set_graphics_toolkit ();
21 set_print_size (); 21 set_print_size ();
22 hide_output (); 22 hide_output ();
23 outfile = fullfile (d, [nm "." typ]); 23 outfile = fullfile (d, [nm "." typ]);
24 if (strcmp (typ, "png")) 24 if (strcmp (typ, "png"))
25 set (0, "defaulttextfontname", "*"); 25 set (0, "defaulttextfontname", "*");
133 hide_output (); 133 hide_output ();
134 end_unwind_protect 134 end_unwind_protect
135 endif 135 endif
136 endfunction 136 endfunction
137 137
138 ## This function no longer sets the graphics toolkit; That is now done
139 ## automatically by C++ code which will ordinarily choose 'qt', but might
140 ## choose gnuplot on older systems. Only a complete lack of plotting is a
141 ## problem.
142 function set_graphics_toolkit ()
143 if (isempty (available_graphics_toolkits ()))
144 error ("no graphics toolkit available for plotting");
145 endif
146 endfunction
147
138 function set_print_size () 148 function set_print_size ()
139 image_size = [5.0, 3.5]; # in inches, 16:9 format 149 image_size = [5.0, 3.5]; # in inches, 16:9 format
140 border = 0; # For postscript use 50/72 150 border = 0; # For postscript use 50/72
141 set (0, "defaultfigurepapertype", "<custom>"); 151 set (0, "defaultfigurepapertype", "<custom>");
142 set (0, "defaultfigurepaperorientation", "landscape"); 152 set (0, "defaultfigurepaperorientation", "landscape");
143 set (0, "defaultfigurepapersize", image_size + 2*border); 153 set (0, "defaultfigurepapersize", image_size + 2*border);
144 set (0, "defaultfigurepaperposition", [border, border, image_size]); 154 set (0, "defaultfigurepaperposition", [border, border, image_size]);
145 endfunction 155 endfunction
146 156
147 ## Use this function before plotting commands and after every call to 157 ## Use this function before plotting commands and after every call to print
148 ## print since print() resets output to stdout (unfortunately, gnpulot 158 ## since print() resets output to stdout (unfortunately, gnuplot can't pop
149 ## can't pop output as it can the terminal type). 159 ## output as it can the terminal type).
150 function hide_output () 160 function hide_output ()
151 hf = figure (1); 161 hf = figure (1, "visible", "off");
152 set (hf, "visible", "off");
153 endfunction 162 endfunction
154 163
155 ## generate something for the texinfo @image command to process 164 ## generate something for the texinfo @image command to process
156 function image_as_txt (d, nm) 165 function image_as_txt (d, nm)
157 fid = fopen (fullfile (d, [nm ".txt"]), "wt"); 166 fid = fopen (fullfile (d, [nm ".txt"]), "wt");