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annotate doc/interpreter/plotimages.m @ 21226:a55b8ece1ecd

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reorganize octave_config_info again * build-env-features.sh: Don't include ENABLE_ items in the output. * toplev.cc (find_config_info): New static function. (Foctave_config_info): Put Octave configuration info in the main struct. Put the build system features and build environment info in substructures. Allow searching of all elements by keyword. * __have_feature__.m, doc/interpreter/testfun.txi: Fix name of build features substructure element. * geometryimages.m, interpimages.m, plotimages.m, sparseimages.m, splineimages.m: Use __have_feature__ to check for OSMESA.
author John W. Eaton <jwe@octave.org>
date Mon, 08 Feb 2016 23:14:56 -0500
parents 80b69efcd960
children bac0d6f07a3e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
19697
4197fc428c7d maint: Update copyright notices for 2015.
John W. Eaton <jwe@octave.org>
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1 ## Copyright (C) 2007-2015 John W. Eaton and David Bateman
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 3 of the License, or (at
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8 ## your option) any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 function plotimages (d, nm, typ)
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20 set_graphics_toolkit ();
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21 set_print_size ();
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22 hide_output ();
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23 outfile = fullfile (d, [nm "." typ]);
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24 if (strcmp (typ, "png"))
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25 set (0, "defaulttextfontname", "*");
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26 endif
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27 if (strcmp (typ, "eps"))
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28 d_typ = "-depsc2";
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29 else
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30 d_typ = ["-d", typ];
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31 endif
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32
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33 if (strcmp (typ , "txt"))
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34 image_as_txt (d, nm);
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35 elseif (strcmp (nm, "plot"))
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36 x = -10:0.1:10;
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37 plot (x, sin (x));
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38 xlabel ("x");
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39 ylabel ("sin (x)");
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40 title ("Simple 2-D Plot");
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41 print (outfile, d_typ);
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42 elseif (strcmp (nm, "hist"))
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43 randn ("state", 1);
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44 hist (randn (10000, 1), 30);
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45 xlabel ("Value");
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46 ylabel ("Count");
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47 title ("Histogram of 10,000 normally distributed random numbers");
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48 print (outfile, d_typ);
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49 elseif (strcmp (nm, "errorbar"))
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50 rand ("state", 2);
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51 x = 0:0.1:10;
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52 y = sin (x);
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53 lerr = 0.1 .* rand (size (x));
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54 uerr = 0.1 .* rand (size (x));
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55 errorbar (x, y, lerr, uerr);
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56 axis ([0, 10, -1.1, 1.1]);
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57 xlabel ("x");
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58 ylabel ("sin (x)");
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59 title ("Errorbar plot of sin (x)");
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60 print (outfile, d_typ);
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61 elseif (strcmp (nm, "polar"))
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62 polar (0:0.1:10*pi, 0:0.1:10*pi);
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63 title ("Example polar plot from 0 to 10*pi");
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64 print (outfile, d_typ);
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65 elseif (strcmp (nm, "mesh"))
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66 tx = ty = linspace (-8, 8, 41)';
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67 [xx, yy] = meshgrid (tx, ty);
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68 r = sqrt (xx .^ 2 + yy .^ 2) + eps;
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69 tz = sin (r) ./ r;
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70 mesh (tx, ty, tz);
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71 xlabel ("tx");
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72 ylabel ("ty");
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73 zlabel ("tz");
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74 title ("3-D Sombrero plot");
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75 print (outfile, d_typ);
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76 elseif (strcmp (nm, "plot3"))
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77 t = 0:0.1:10*pi;
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78 r = linspace (0, 1, numel (t));
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79 z = linspace (0, 1, numel (t));
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80 plot3 (r.*sin (t), r.*cos (t), z);
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81 xlabel ("r.*sin (t)");
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82 ylabel ("r.*cos (t)");
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83 zlabel ("z");
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84 title ("plot3 display of 3-D helix");
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85 print (outfile, d_typ);
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86 elseif (strcmp (nm, "extended"))
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87 x = 0:0.01:3;
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88 plot (x, erf (x));
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89 hold on;
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90 plot (x, x, "r");
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91 axis ([0, 3, 0, 1]);
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92 xlabel ("x");
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93 ylabel ("erf (x)");
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94 title ("erf (x) with text annotation");
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95 if (strcmp (typ, "pdf") && ! strcmp (graphics_toolkit, "gnuplot"))
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96 text (0.65, 0.6175, ['$\displaystyle\leftarrow x = {2\over\sqrt{\pi}}'...
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97 '\int_{0}^{x}e^{-t^2} dt = 0.6175$']);
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98 ## Be very careful about modifying this. pdflatex expects to be in
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99 ## the same directory as the file it is operating on.
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100 cd (make_absolute_filename (d));
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101 print ([nm ".pdf"], "-dpdflatexstandalone");
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102 [status, output] = system (["pdflatex " nm]);
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103 if (status)
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104 error ("plotimages: Failed to run pdflatex on <extended.pdf>");
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105 endif
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106 delete ([nm ".aux"], [nm "-inc.pdf"], [nm ".log"], [nm ".tex"]);
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107 else
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108 text (0.65, 0.6175, ['\leftarrow x = {2/\surd\pi {\fontsize{16}' ...
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109 '\int_{\fontsize{8}0}^{\fontsize{8}x}} e^{-t^2} dt} = 0.6175']);
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110 print (outfile, d_typ);
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111 endif
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112 else
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113 error ("unrecognized plot requested");
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114 endif
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115 hide_output ();
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116 endfunction
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117
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118 ## This function no longer sets the graphics toolkit; That is now done
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119 ## automatically by C++ code which will ordinarily choose 'qt', but might
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120 ## choose gnuplot on older systems. Only a complete lack of plotting is a
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121 ## problem.
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122 function set_graphics_toolkit ()
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123 if (isempty (available_graphics_toolkits ()))
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124 error ("no graphics toolkit available for plotting");
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125 elseif (! strcmp ("gnuplot", graphics_toolkit ()) ...
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126 && ! __have_feature__ ("OSMESA"))
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127 if (! any (strcmp ("gnuplot", available_graphics_toolkits ())))
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128 error ("no graphics toolkit available for offscreen plotting");
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129 else
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130 graphics_toolkit ("gnuplot");
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131 endif
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132 endif
03c88436ad8c Correctly generate figure 15.7 of the Manual.
Rik <rik@octave.org>
parents: 20321
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133 endfunction
03c88436ad8c Correctly generate figure 15.7 of the Manual.
Rik <rik@octave.org>
parents: 20321
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134
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Rik <rdrider0-list@yahoo.com>
parents: 8920
diff changeset
135 function set_print_size ()
77e71f3da3d6 Fix documentation image printing under new development code
Rik <rdrider0-list@yahoo.com>
parents: 8920
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136 image_size = [5.0, 3.5]; # in inches, 16:9 format
77e71f3da3d6 Fix documentation image printing under new development code
Rik <rdrider0-list@yahoo.com>
parents: 8920
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137 border = 0; # For postscript use 50/72
77e71f3da3d6 Fix documentation image printing under new development code
Rik <rdrider0-list@yahoo.com>
parents: 8920
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138 set (0, "defaultfigurepapertype", "<custom>");
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e9fe12c1b0c0 Set default papersize to the desired imagesize
Rik <rdrider0-list@yahoo.com>
parents: 9298
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139 set (0, "defaultfigurepaperorientation", "landscape");
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Rik <rdrider0-list@yahoo.com>
parents: 8920
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140 set (0, "defaultfigurepapersize", image_size + 2*border);
77e71f3da3d6 Fix documentation image printing under new development code
Rik <rdrider0-list@yahoo.com>
parents: 8920
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141 set (0, "defaultfigurepaperposition", [border, border, image_size]);
77e71f3da3d6 Fix documentation image printing under new development code
Rik <rdrider0-list@yahoo.com>
parents: 8920
diff changeset
142 endfunction
77e71f3da3d6 Fix documentation image printing under new development code
Rik <rdrider0-list@yahoo.com>
parents: 8920
diff changeset
143
20322
03c88436ad8c Correctly generate figure 15.7 of the Manual.
Rik <rik@octave.org>
parents: 20321
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144 ## Use this function before plotting commands and after every call to print
03c88436ad8c Correctly generate figure 15.7 of the Manual.
Rik <rik@octave.org>
parents: 20321
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145 ## since print() resets output to stdout (unfortunately, gnuplot can't pop
03c88436ad8c Correctly generate figure 15.7 of the Manual.
Rik <rik@octave.org>
parents: 20321
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146 ## output as it can the terminal type).
9088
77e71f3da3d6 Fix documentation image printing under new development code
Rik <rdrider0-list@yahoo.com>
parents: 8920
diff changeset
147 function hide_output ()
20322
03c88436ad8c Correctly generate figure 15.7 of the Manual.
Rik <rik@octave.org>
parents: 20321
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148 hf = figure (1, "visible", "off");
6888
b3d286e8a243 [project @ 2007-09-12 06:40:58 by jwe]
jwe
parents:
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149 endfunction
7256
be3280acbdb8 [project @ 2007-12-05 01:08:17 by jwe]
jwe
parents: 7189
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150
be3280acbdb8 [project @ 2007-12-05 01:08:17 by jwe]
jwe
parents: 7189
diff changeset
151 ## generate something for the texinfo @image command to process
20315
b9d4ccf4291c Use FLTK for creating plots for Manual.
Michael D. Godfrey <michaeldgodfrey@gmail.com>
parents: 20307
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152 function image_as_txt (d, nm)
20316
d8992a16643c doc: Clean up m-files which generate images for Manual.
Rik <rik@octave.org>
parents: 20315
diff changeset
153 fid = fopen (fullfile (d, [nm ".txt"]), "wt");
7256
be3280acbdb8 [project @ 2007-12-05 01:08:17 by jwe]
jwe
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154 fputs (fid, "\n");
be3280acbdb8 [project @ 2007-12-05 01:08:17 by jwe]
jwe
parents: 7189
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155 fputs (fid, "+---------------------------------+\n");
be3280acbdb8 [project @ 2007-12-05 01:08:17 by jwe]
jwe
parents: 7189
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156 fputs (fid, "| Image unavailable in text mode. |\n");
be3280acbdb8 [project @ 2007-12-05 01:08:17 by jwe]
jwe
parents: 7189
diff changeset
157 fputs (fid, "+---------------------------------+\n");
be3280acbdb8 [project @ 2007-12-05 01:08:17 by jwe]
jwe
parents: 7189
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158 fclose (fid);
be3280acbdb8 [project @ 2007-12-05 01:08:17 by jwe]
jwe
parents: 7189
diff changeset
159 endfunction
20316
d8992a16643c doc: Clean up m-files which generate images for Manual.
Rik <rik@octave.org>
parents: 20315
diff changeset
160