Annotation of loncom/xml/lonplot.pm, revision 1.184
1.1 matthew 1: # The LearningOnline Network with CAPA
2: # Dynamic plot
3: #
1.184 ! raeburn 4: # $Id: lonplot.pm,v 1.183 2020/01/30 15:59:15 raeburn Exp $
1.1 matthew 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.35 matthew 28:
1.149 jms 29:
30:
31:
1.1 matthew 32: package Apache::lonplot;
1.10 matthew 33:
1.1 matthew 34: use strict;
1.89 matthew 35: use warnings FATAL=>'all';
36: no warnings 'uninitialized';
1.10 matthew 37: use Apache::File;
1.1 matthew 38: use Apache::response;
1.2 matthew 39: use Apache::lonxml;
1.20 matthew 40: use Apache::edit;
1.106 albertel 41: use Apache::lonnet;
1.184 ! raeburn 42: use Apache::lonlocal;
1.113 www 43: use LONCAPA;
1.10 matthew 44:
1.181 raeburn 45: use vars qw/$weboutputformat $version $colorprefix/;
1.97 matthew 46:
1.109 foxr 47:
1.108 foxr 48:
1.33 harris41 49: BEGIN {
1.97 matthew 50: &Apache::lonxml::register('Apache::lonplot',('gnuplot'));
51: #
52: # Determine the version of GNUPLOT
53: $weboutputformat = 'gif';
1.129 albertel 54: my $versionstring = `gnuplot --version 2>/dev/null`;
55: ($version) = ($versionstring =~ /^gnuplot ([\d.]+)/);
56: if ($version >= 4) {
1.97 matthew 57: $weboutputformat = 'png';
58: }
1.184 ! raeburn 59: $colorprefix = 'x';
! 60: if ($version >= 4.6) {
1.181 raeburn 61: $colorprefix = '#';
62: }
1.108 foxr 63: }
64:
1.1 matthew 65:
1.149 jms 66: =pod
67:
1.10 matthew 68: ##
69: ## Description of data structures:
70: ##
71: ## %plot %key %axis
72: ## --------------------------
73: ## height title color
74: ## width box xmin
75: ## bgcolor pos xmax
76: ## fgcolor ymin
77: ## transparent ymax
78: ## grid
79: ## border
80: ## font
1.19 matthew 81: ## align
1.10 matthew 82: ##
83: ## @labels: $labels[$i] = \%label
1.175 raeburn 84: ## %label: text, xpos, ypos, justify, rotate, zlayer
1.14 matthew 85: ##
1.10 matthew 86: ## @curves: $curves[$i] = \%curve
1.14 matthew 87: ## %curve: name, linestyle, ( function | data )
1.10 matthew 88: ##
89: ## $curves[$i]->{'data'} = [ [x1,x2,x3,x4],
90: ## [y1,y2,y3,y4] ]
91: ##
1.21 matthew 92:
93: ###################################################################
94: ## ##
95: ## Tests used in checking the validitity of input ##
96: ## ##
97: ###################################################################
1.29 matthew 98:
1.149 jms 99: =cut
100:
1.32 matthew 101: my $max_str_len = 50; # if a label, title, xlabel, or ylabel text
102: # is longer than this, it will be truncated.
103:
1.157 foxr 104: my %linetypes = # For png use these linetypes.
1.135 faziophi 105: (
106: solid => 1,
107: dashed => 0
108: );
1.157 foxr 109: my %ps_linetypes = # For ps the line types are different!
110: (
1.174 raeburn 111: solid => 1,
1.157 foxr 112: dashed => 7
113: );
1.135 faziophi 114:
1.29 matthew 115: my %linestyles =
116: (
117: lines => 2, # Maybe this will be used in the future
118: linespoints => 2, # to check on whether or not they have
119: dots => 2, # supplied enough <data></data> fields
120: points => 2, # to use the given line style. But for
121: steps => 2, # now there are more important things
122: fsteps => 2, # for me to deal with.
123: histeps => 2,
1.34 matthew 124: errorbars => 3,
125: xerrorbars => [3,4],
126: yerrorbars => [3,4],
1.35 matthew 127: xyerrorbars => [4,6],
1.34 matthew 128: boxes => 3,
1.110 albertel 129: filledcurves => 2,
1.35 matthew 130: vector => 4
1.29 matthew 131: );
132:
1.11 matthew 133: my $int_test = sub {$_[0]=~s/\s+//g;$_[0]=~/^\d+$/};
1.19 matthew 134: my $real_test =
135: sub {$_[0]=~s/\s+//g;$_[0]=~/^[+-]?\d*\.?\d*([eE][+-]\d+)?$/};
1.62 matthew 136: my $pos_real_test =
137: sub {$_[0]=~s/\s+//g;$_[0]=~/^[+]?\d*\.?\d*([eE][+-]\d+)?$/};
1.167 raeburn 138: my $color_test;
139: if ($version < 4.6) {
1.184 ! raeburn 140: $color_test = sub {$_[0]=~s/\s+//g;$_[0]=~s/^\#/x/;$_[0]=~s/^x+/x/;$_[0]=~/^x[\da-fA-F]{6}$/};
1.167 raeburn 141: } else {
1.184 ! raeburn 142: $color_test = sub {$_[0]=~s/\s+//g;$_[0]=~s/^x/#/;$_[0]=~s/^\#+/#/;$_[0]=~/^\#[\da-fA-F]{6}$/};
1.167 raeburn 143: }
1.1 matthew 144: my $onoff_test = sub {$_[0]=~/^(on|off)$/};
1.15 matthew 145: my $key_pos_test = sub {$_[0]=~/^(top|bottom|right|left|outside|below| )+$/};
1.119 albertel 146: my $sml_test = sub {$_[0]=~/^(\d+|small|medium|large)$/};
1.29 matthew 147: my $linestyle_test = sub {exists($linestyles{$_[0]})};
1.67 matthew 148: my $words_test = sub {$_[0]=~s/\s+/ /g;$_[0]=~/^([\w~!\@\#\$\%^&\*\(\)-=_\+\[\]\{\}:\;\'<>,\.\/\?\\]+ ?)+$/};
1.21 matthew 149:
1.160 foxr 150: my $arrowhead_test = sub{$_[0]=~/^(nohead|head|heads| )+$/};
151: my $arrowstyle_test= sub{$_[0]=~/^(filled|empty|nofilled)+$/};
152: my $degree_test = sub{&$pos_real_test($_[0]) && ($_[0] <= 360.0)};
153:
1.21 matthew 154: ###################################################################
155: ## ##
156: ## Attribute metadata ##
157: ## ##
158: ###################################################################
1.47 matthew 159: my @gnuplot_edit_order =
1.123 albertel 160: qw/alttag bgcolor fgcolor height width texwidth fontface font texfont
161: transparent grid samples
162: border align plotcolor plottype gridtype lmargin rmargin
1.115 albertel 163: tmargin bmargin major_ticscale minor_ticscale boxwidth gridlayer fillstyle
1.110 albertel 164: pattern solid/;
1.101 matthew 165:
1.105 matthew 166: my $margin_choices = ['default',0..20];
1.48 matthew 167:
1.47 matthew 168: my %gnuplot_defaults =
1.1 matthew 169: (
1.64 matthew 170: alttag => {
171: default => 'dynamically generated plot',
172: test => $words_test,
1.120 albertel 173: description => 'Brief description of the plot',
1.64 matthew 174: edit_type => 'entry',
175: size => '40'
176: },
1.20 matthew 177: height => {
1.65 matthew 178: default => 300,
1.20 matthew 179: test => $int_test,
1.120 albertel 180: description => 'Height of image (pixels)',
1.38 matthew 181: edit_type => 'entry',
182: size => '10'
1.20 matthew 183: },
184: width => {
1.65 matthew 185: default => 400,
1.20 matthew 186: test => $int_test,
1.120 albertel 187: description => 'Width of image (pixels)',
1.38 matthew 188: edit_type => 'entry',
189: size => '10'
1.20 matthew 190: },
191: bgcolor => {
1.181 raeburn 192: default => $colorprefix.'ffffff',
193: test => $color_test,
194: description => 'Background color of image ('.$colorprefix.'ffffff)',
1.38 matthew 195: edit_type => 'entry',
1.154 foxr 196: size => '10',
197: class => 'colorchooser'
1.20 matthew 198: },
199: fgcolor => {
1.181 raeburn 200: default => $colorprefix.'000000',
1.20 matthew 201: test => $color_test,
1.181 raeburn 202: description => 'Foreground color of image ('.$colorprefix.'000000)',
1.38 matthew 203: edit_type => 'entry',
1.154 foxr 204: size => '10',
205: class => 'colorchooser'
1.20 matthew 206: },
207: transparent => {
208: default => 'off',
209: test => $onoff_test,
1.34 matthew 210: description => 'Transparent image',
1.45 matthew 211: edit_type => 'onoff'
1.20 matthew 212: },
213: grid => {
1.65 matthew 214: default => 'on',
1.20 matthew 215: test => $onoff_test,
1.34 matthew 216: description => 'Display grid',
1.45 matthew 217: edit_type => 'onoff'
1.20 matthew 218: },
1.110 albertel 219: gridlayer => {
220: default => 'off',
221: test => $onoff_test,
222: description => 'Display grid front layer over filled boxes or filled curves',
223: edit_type => 'onoff'
224: },
225: box_border => {
226: default => 'noborder',
227: test => sub {$_[0]=~/^(noborder|border)$/},
228: description => 'Draw border for boxes',
229: edit_type => 'choice',
230: choices => ['border','noborder']
231: },
1.20 matthew 232: border => {
233: default => 'on',
234: test => $onoff_test,
1.34 matthew 235: description => 'Draw border around plot',
1.45 matthew 236: edit_type => 'onoff'
1.20 matthew 237: },
238: font => {
1.119 albertel 239: default => '9',
1.20 matthew 240: test => $sml_test,
1.125 albertel 241: description => 'Font size to use in web output (pts)',
1.20 matthew 242: edit_type => 'choice',
1.126 albertel 243: choices => [['5','5 (small)'],'6','7','8',['9','9 (medium)'],'10',['11','11 (large)'],'12','15']
1.20 matthew 244: },
1.120 albertel 245: fontface => {
246: default => 'sans-serif',
247: test => sub {$_[0]=~/^(sans-serif|serif|classic)$/},
248: description => 'Type of font to use',
249: edit_type => 'choice',
250: choices => ['sans-serif','serif', 'classic']
251: },
1.110 albertel 252: samples => {
1.77 matthew 253: default => '100',
254: test => $int_test,
255: description => 'Number of samples for non-data plots',
256: edit_type => 'choice',
257: choices => ['100','200','500','1000','2000','5000']
258: },
1.20 matthew 259: align => {
1.116 albertel 260: default => 'middle',
261: test => sub {$_[0]=~/^(left|right|middle|center)$/},
1.120 albertel 262: description => 'Alignment for image in HTML',
1.20 matthew 263: edit_type => 'choice',
1.176 damieng 264: choices => ['left','right','middle','center']
1.82 matthew 265: },
266: texwidth => {
267: default => '93',
268: test => $int_test,
269: description => 'Width of plot when printed (mm)',
270: edit_type => 'entry',
271: size => '5'
272: },
1.110 albertel 273: texfont => {
1.92 matthew 274: default => '22',
275: test => $int_test,
276: description => 'Font size to use in TeX output (pts):',
277: edit_type => 'choice',
1.96 matthew 278: choices => [qw/8 10 12 14 16 18 20 22 24 26 28 30 32 34 36/],
1.92 matthew 279: },
1.110 albertel 280: plotcolor => {
1.105 matthew 281: default => 'monochrome',
282: test => sub {$_[0]=~/^(monochrome|color|colour)$/},
283: description => 'Color setting for printing:',
284: edit_type => 'choice',
285: choices => [qw/monochrome color colour/],
286: },
1.110 albertel 287: pattern => {
288: default => '',
289: test => $int_test,
1.120 albertel 290: description => 'Pattern value for boxes:',
1.110 albertel 291: edit_type => 'choice',
292: choices => [0,1,2,3,4,5,6]
293: },
294: solid => {
295: default => 0,
296: test => $real_test,
297: description => 'The density of fill style for boxes',
298: edit_type => 'entry',
299: size => '5'
300: },
301: fillstyle => {
302: default => 'empty',
303: test => sub {$_[0]=~/^(empty|solid|pattern)$/},
304: description => 'Filled style for boxes:',
305: edit_type => 'choice',
306: choices => ['empty','solid','pattern']
307: },
308: plottype => {
1.87 matthew 309: default => 'Cartesian',
310: test => sub {$_[0]=~/^(Polar|Cartesian)$/},
311: description => 'Plot type:',
312: edit_type => 'choice',
1.94 matthew 313: choices => ['Cartesian','Polar']
1.87 matthew 314: },
1.115 albertel 315: gridtype => {
316: default => 'Cartesian',
1.118 albertel 317: test => sub {$_[0]=~/^(Polar|Cartesian|Linear-Log|Log-Linear|Log-Log)$/},
1.115 albertel 318: description => 'Grid type:',
319: edit_type => 'choice',
1.118 albertel 320: choices => ['Cartesian','Polar','Linear-Log','Log-Linear','Log-Log']
1.115 albertel 321: },
1.110 albertel 322: lmargin => {
1.101 matthew 323: default => 'default',
324: test => sub {$_[0]=~/^(default|\d+)$/},
325: description => 'Left margin width (pts):',
326: edit_type => 'choice',
327: choices => $margin_choices,
328: },
1.110 albertel 329: rmargin => {
1.101 matthew 330: default => 'default',
331: test => sub {$_[0]=~/^(default|\d+)$/},
332: description => 'Right margin width (pts):',
333: edit_type => 'choice',
334: choices => $margin_choices,
335: },
1.110 albertel 336: tmargin => {
1.101 matthew 337: default => 'default',
338: test => sub {$_[0]=~/^(default|\d+)$/},
339: description => 'Top margin width (pts):',
340: edit_type => 'choice',
341: choices => $margin_choices,
342: },
1.110 albertel 343: bmargin => {
1.101 matthew 344: default => 'default',
345: test => sub {$_[0]=~/^(default|\d+)$/},
1.104 www 346: description => 'Bottom margin width (pts):',
1.101 matthew 347: edit_type => 'choice',
348: choices => $margin_choices,
349: },
1.110 albertel 350: boxwidth => {
351: default => '',
352: test => $real_test,
1.120 albertel 353: description => 'Width of boxes, default is auto',
1.110 albertel 354: edit_type => 'entry',
355: size => '5'
356: },
1.101 matthew 357: major_ticscale => {
358: default => '1',
359: test => $real_test,
360: description => 'Size of major tic marks (plot coordinates)',
361: edit_type => 'entry',
362: size => '5'
363: },
364: minor_ticscale => {
365: default => '0.5',
366: test => $real_test,
367: description => 'Size of minor tic mark (plot coordinates)',
368: edit_type => 'entry',
369: size => '5'
370: },
1.1 matthew 371: );
372:
1.181 raeburn 373:
1.1 matthew 374: my %key_defaults =
375: (
1.20 matthew 376: title => {
377: default => '',
378: test => $words_test,
379: description => 'Title of key',
1.38 matthew 380: edit_type => 'entry',
381: size => '40'
1.20 matthew 382: },
383: box => {
384: default => 'off',
385: test => $onoff_test,
386: description => 'Draw a box around the key?',
1.45 matthew 387: edit_type => 'onoff'
1.20 matthew 388: },
389: pos => {
390: default => 'top right',
391: test => $key_pos_test,
1.120 albertel 392: description => 'Position of the key on the plot',
1.20 matthew 393: edit_type => 'choice',
394: choices => ['top left','top right','bottom left','bottom right',
395: 'outside','below']
396: }
1.1 matthew 397: );
398:
399: my %label_defaults =
400: (
1.20 matthew 401: xpos => {
402: default => 0,
403: test => $real_test,
1.120 albertel 404: description => 'X position of label (graph coordinates)',
1.38 matthew 405: edit_type => 'entry',
406: size => '10'
1.20 matthew 407: },
408: ypos => {
409: default => 0,
410: test => $real_test,
1.120 albertel 411: description => 'Y position of label (graph coordinates)',
1.38 matthew 412: edit_type => 'entry',
413: size => '10'
1.20 matthew 414: },
415: justify => {
416: default => 'left',
417: test => sub {$_[0]=~/^(left|right|center)$/},
418: description => 'justification of the label text on the plot',
419: edit_type => 'choice',
420: choices => ['left','right','center']
1.134 raeburn 421: },
422: rotate => {
423: default => 0,
424: test => $real_test,
425: description => 'Rotation of label (degrees)',
426: edit_type => 'entry',
427: size => '10',
1.175 raeburn 428: },
429: zlayer => {
430: default => '',
431: test => sub {$_[0]=~/^(front|back)$/},
432: description => 'Z position of label',
433: edit_type => 'choice',
434: choices => ['front','back'],
435: },
1.1 matthew 436: );
437:
1.89 matthew 438: my @tic_edit_order = ('location','mirror','start','increment','end',
439: 'minorfreq');
1.45 matthew 440: my %tic_defaults =
441: (
442: location => {
443: default => 'border',
444: test => sub {$_[0]=~/^(border|axis)$/},
1.90 matthew 445: description => 'Location of major tic marks',
1.45 matthew 446: edit_type => 'choice',
447: choices => ['border','axis']
448: },
449: mirror => {
450: default => 'on',
451: test => $onoff_test,
1.120 albertel 452: description => 'Mirror tics on opposite axis?',
1.45 matthew 453: edit_type => 'onoff'
454: },
455: start => {
456: default => '-10.0',
457: test => $real_test,
1.90 matthew 458: description => 'Start major tics at',
1.45 matthew 459: edit_type => 'entry',
460: size => '10'
461: },
462: increment => {
463: default => '1.0',
464: test => $real_test,
1.90 matthew 465: description => 'Place a major tic every',
1.45 matthew 466: edit_type => 'entry',
467: size => '10'
468: },
469: end => {
470: default => ' 10.0',
471: test => $real_test,
1.90 matthew 472: description => 'Stop major tics at ',
1.45 matthew 473: edit_type => 'entry',
474: size => '10'
475: },
1.89 matthew 476: minorfreq => {
477: default => '0',
478: test => $int_test,
1.98 matthew 479: description => 'Number of minor tics per major tic mark',
1.89 matthew 480: edit_type => 'entry',
481: size => '10'
1.164 foxr 482: },
483: rotate => {
484: default => 'off',
485: test => $onoff_test,
486: description => 'Rotate tic label by 90 degrees if on',
487: edit_type => 'onoff'
488: }
1.45 matthew 489: );
490:
1.152 faziophi 491: my @axis_edit_order = ('color','xmin','xmax','ymin','ymax','xformat', 'yformat', 'xzero', 'yzero');
1.1 matthew 492: my %axis_defaults =
493: (
1.28 matthew 494: color => {
1.181 raeburn 495: default => $colorprefix.'000000',
1.20 matthew 496: test => $color_test,
1.181 raeburn 497: description => 'Color of grid lines ('.$colorprefix.'000000)',
1.38 matthew 498: edit_type => 'entry',
1.154 foxr 499: size => '10',
500: class => 'colorchooser'
1.20 matthew 501: },
502: xmin => {
503: default => '-10.0',
504: test => $real_test,
1.120 albertel 505: description => 'Minimum x-value shown in plot',
1.38 matthew 506: edit_type => 'entry',
507: size => '10'
1.20 matthew 508: },
509: xmax => {
510: default => ' 10.0',
511: test => $real_test,
1.120 albertel 512: description => 'Maximum x-value shown in plot',
1.38 matthew 513: edit_type => 'entry',
514: size => '10'
1.20 matthew 515: },
516: ymin => {
517: default => '-10.0',
518: test => $real_test,
1.120 albertel 519: description => 'Minimum y-value shown in plot',
1.38 matthew 520: edit_type => 'entry',
521: size => '10'
1.20 matthew 522: },
523: ymax => {
524: default => ' 10.0',
525: test => $real_test,
1.120 albertel 526: description => 'Maximum y-value shown in plot',
1.38 matthew 527: edit_type => 'entry',
528: size => '10'
1.132 albertel 529: },
530: xformat => {
531: default => 'on',
1.183 raeburn 532: test => sub {$_[0]=~/^(on|off|\d+(f|F|e|E|P(|\s*[Pp][Ii])))$/},
1.132 albertel 533: description => 'X-axis number formatting',
534: edit_type => 'choice',
535: choices => ['on', 'off', '2e', '2f'],
536: },
537: yformat => {
538: default => 'on',
1.183 raeburn 539: test => sub {$_[0]=~/^(on|off|\d+(f|F|e|E|P(|\s*[Pp][Ii])))$/},
1.151 raeburn 540: description => 'Y-axis number formatting',
1.132 albertel 541: edit_type => 'choice',
542: choices => ['on', 'off', '2e', '2f'],
543: },
1.152 faziophi 544:
545: xzero => {
546: default => 'off',
547: test => sub {$_[0]=~/^(off|line|thick-line|dotted)$/},
548: description => 'Show x-zero (y=0) axis',
549: edit_type => 'choice',
550: choices => ['off', 'line', 'thick-line', 'dotted'],
551: },
552:
553: yzero => {
554: default => 'off',
555: test => sub {$_[0]=~/^(off|line|thick-line|dotted)$/},
556: description => 'Show y-zero (x=0) axis',
557: edit_type => 'choice',
558: choices => ['off', 'line', 'thick-line', 'dotted'],
559: },
1.1 matthew 560: );
561:
1.163 foxr 562:
1.160 foxr 563: my @curve_edit_order = ('color','name','linestyle','linewidth','linetype',
564: 'pointtype','pointsize','limit', 'arrowhead', 'arrowstyle',
565: 'arrowlength', 'arrowangle', 'arrowbackangle'
566: );
1.60 matthew 567:
1.1 matthew 568: my %curve_defaults =
569: (
1.20 matthew 570: color => {
1.181 raeburn 571: default => $colorprefix.'000000',
1.20 matthew 572: test => $color_test,
1.181 raeburn 573: description => 'Color of curve ('.$colorprefix.'000000)',
1.38 matthew 574: edit_type => 'entry',
1.154 foxr 575: size => '10',
576: class => 'colorchooser'
1.20 matthew 577: },
578: name => {
579: default => '',
580: test => $words_test,
1.120 albertel 581: description => 'Name of curve to appear in key',
1.38 matthew 582: edit_type => 'entry',
583: size => '20'
1.20 matthew 584: },
585: linestyle => {
586: default => 'lines',
587: test => $linestyle_test,
1.135 faziophi 588: description => 'Plot with:',
1.20 matthew 589: edit_type => 'choice',
1.38 matthew 590: choices => [keys(%linestyles)]
1.60 matthew 591: },
1.119 albertel 592: linewidth => {
1.130 albertel 593: default => 1,
1.119 albertel 594: test => $int_test,
1.135 faziophi 595: description => 'Line width (may not apply to all plot styles)',
1.119 albertel 596: edit_type => 'choice',
597: choices => [1,2,3,4,5,6,7,8,9,10]
598: },
1.135 faziophi 599: linetype => {
600: default => 'solid',
601: test => sub {$_[0]=~/^(solid|dashed)$/},
602: description => 'Line type (may not apply to all plot styles)',
603: edit_type => 'choice',
604: choices => ['solid', 'dashed']
605: },
1.60 matthew 606: pointsize => {
607: default => 1,
1.62 matthew 608: test => $pos_real_test,
1.135 faziophi 609: description => 'Point size (may not apply to all plot styles)',
1.62 matthew 610: edit_type => 'entry',
611: size => '5'
612: },
613: pointtype => {
614: default => 1,
1.60 matthew 615: test => $int_test,
1.135 faziophi 616: description => 'Point type (may not apply to all plot styles)',
1.60 matthew 617: edit_type => 'choice',
1.62 matthew 618: choices => [0,1,2,3,4,5,6]
1.110 albertel 619: },
620: limit => {
621: default => 'closed',
1.135 faziophi 622: test => sub {$_[0]=~/^(above|below|closed|x1|x2|y1|y2)$/},
1.120 albertel 623: description => 'Point to fill -- for filledcurves',
1.110 albertel 624: edit_type => 'choice',
1.135 faziophi 625: choices => ['above', 'below', 'closed','x1','x2','y1','y2']
1.110 albertel 626: },
1.160 foxr 627: arrowhead => {
628: default => 'head',
629: test => $arrowhead_test,
630: description => 'Vector arrow head type',
631: edit_type => 'choice',
632: choices => ['nohead', 'head', 'heads']
633: },
634: arrowstyle => {
635: default => 'filled',
636: test => $arrowstyle_test,
637: description => 'Vector arrow head style',
638: edit_type => 'choice',
639: choices => ['filled', 'empty', 'nofilled']
640: },
641: arrowlength => {
642: default => 0.02,
643: test => $pos_real_test,
644: description => "Length of vector arrow (only applies to vector plots)",
645: edit_type => 'entry',
646: size => '5'
647: },
648: arrowangle => {
649: default => 10.0,
650: test => $degree_test,
651: description => 'Angle of arrow branches to arrow body (only applies to vector plots)',
652: edit_type => 'entry',
653: size => '5'
654: },
655:
656: arrowbackangle => {
657: default => 90.0,
658: test => $degree_test,
659: descripton => 'Angle of arrow back lines to branches.',
660: edit_type => 'entry',
661: size => '5'
662: }
663:
1.1 matthew 664: );
665:
1.21 matthew 666: ###################################################################
667: ## ##
668: ## parsing and edit rendering ##
669: ## ##
670: ###################################################################
1.107 foxr 671:
672: undef %Apache::lonplot::plot;
673: my (%key,%axis,$title,$xlabel,$ylabel,@labels,@curves,%xtics,%ytics);
1.1 matthew 674:
1.163 foxr 675: my $current_tics; # Reference to the current tick hash
676:
1.47 matthew 677: sub start_gnuplot {
1.107 foxr 678: undef(%Apache::lonplot::plot); undef(%key); undef(%axis);
1.89 matthew 679: undef($title); undef($xlabel); undef($ylabel);
680: undef(@labels); undef(@curves);
681: undef(%xtics); undef(%ytics);
1.6 matthew 682: #
1.1 matthew 683: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
684: my $result='';
1.184 ! raeburn 685:
1.25 matthew 686: &Apache::lonxml::register('Apache::lonplot',
1.45 matthew 687: ('title','xlabel','ylabel','key','axis','label','curve',
688: 'xtics','ytics'));
1.29 matthew 689: push (@Apache::lonxml::namespace,'lonplot');
1.51 matthew 690: if ($target eq 'web' || $target eq 'tex') {
1.107 foxr 691: &get_attributes(\%Apache::lonplot::plot,\%gnuplot_defaults,$parstack,$safeeval,
1.17 matthew 692: $tagstack->[-1]);
1.20 matthew 693: } elsif ($target eq 'edit') {
1.184 ! raeburn 694: &fixup_colors($token,['bgcolor','fgcolor']);
1.47 matthew 695: $result .= &Apache::edit::tag_start($target,$token,'GnuPlot');
696: $result .= &edit_attributes($target,$token,\%gnuplot_defaults,
1.116 albertel 697: \@gnuplot_edit_order)
698: .&Apache::edit::end_row()
699: .&Apache::edit::start_spanning_row();
1.20 matthew 700: } elsif ($target eq 'modified') {
701: my $constructtag=&Apache::edit::get_new_args
1.47 matthew 702: ($token,$parstack,$safeeval,keys(%gnuplot_defaults));
1.184 ! raeburn 703: my $fixed = &fixup_colors($token,['bgcolor','fgcolor']);
! 704: if ($constructtag || $fixed) {
1.20 matthew 705: $result = &Apache::edit::rebuild_tag($token);
706: }
1.4 matthew 707: }
1.21 matthew 708: return $result;
1.1 matthew 709: }
710:
1.47 matthew 711: sub end_gnuplot {
1.1 matthew 712: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
713: pop @Apache::lonxml::namespace;
1.4 matthew 714: &Apache::lonxml::deregister('Apache::lonplot',
715: ('title','xlabel','ylabel','key','axis','label','curve'));
716: my $result = '';
1.56 albertel 717: my $randnumber;
1.153 foxr 718: my $tmpdir =LONCAPA::tempdir(); # Where temporary files live:
719:
1.56 albertel 720: # need to call rand everytime start_script would evaluate, as the
721: # safe space rand number generator and the global rand generator
1.95 www 722: # are not separate
1.56 albertel 723: if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
724: $target eq 'answer') {
725: $randnumber=int(rand(1000));
726: }
1.51 matthew 727: if ($target eq 'web' || $target eq 'tex') {
1.21 matthew 728: &check_inputs(); # Make sure we have all the data we need
1.13 matthew 729: ##
730: ## Determine filename
1.106 albertel 731: my $filename = $env{'user.name'}.'_'.$env{'user.domain'}.
1.69 matthew 732: '_'.time.'_'.$$.$randnumber.'_plot';
1.4 matthew 733: ## Write the plot description to the file
1.51 matthew 734: &write_gnuplot_file($tmpdir,$filename,$target);
1.113 www 735: $filename = &escape($filename);
1.4 matthew 736: ## return image tag for the plot
1.51 matthew 737: if ($target eq 'web') {
1.176 damieng 738: my $srcatt = "src=\"/cgi-bin/plot.$weboutputformat?file=$filename.data\"";
739: my $widthatt = "width=\"$Apache::lonplot::plot{'width'}\"";
740: my $heightatt = "height=\"$Apache::lonplot::plot{'height'}\"";
741: my $alignatt = "align=\"$Apache::lonplot::plot{'align'}\"";
742: my $altatt = "alt=\"$Apache::lonplot::plot{'alttag'}\"";
743: if ($Apache::lonplot::plot{'align'} eq 'center') {
744: $result .= '<div style="text-align:center">'.
745: "<img $srcatt $widthatt $heightatt $altatt>".
746: "</div>\n";
747:
748: } else {
1.177 raeburn 749: $result .= "<img $srcatt $widthatt $heightatt $alignatt $altatt>";
1.176 damieng 750: }
1.51 matthew 751: } elsif ($target eq 'tex') {
1.107 foxr 752: &Apache::lonxml::debug(" gnuplot wid = $Apache::lonplot::plot{'width'}");
753: &Apache::lonxml::debug(" gnuplot ht = $Apache::lonplot::plot{'height'}");
1.91 albertel 754: #might be inside the safe space, register the URL for later
755: &Apache::lonxml::register_ssi("/cgi-bin/plot.gif?file=$filename.data&output=eps");
1.111 albertel 756: $result = "%DYNAMICIMAGE:$Apache::lonplot::plot{'width'}:$Apache::lonplot::plot{'height'}:$Apache::lonplot::plot{'texwidth'}\n";
1.153 foxr 757: $result .= '\graphicspath{{'.$tmpdir.'}}'."\n";
1.176 damieng 758: if ($Apache::lonplot::plot{'align'} eq 'center') {
759: $result .= '\begin{center}';
760: }
1.113 www 761: $result .= '\includegraphics[width='.$Apache::lonplot::plot{'texwidth'}.' mm]{'.&unescape($filename).'.eps}';
1.176 damieng 762: if ($Apache::lonplot::plot{'align'} eq 'center') {
763: $result .= '\end{center}';
764: }
1.51 matthew 765: }
1.20 matthew 766: } elsif ($target eq 'edit') {
1.21 matthew 767: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 768: }
1.1 matthew 769: return $result;
770: }
1.2 matthew 771:
1.45 matthew 772:
773: ##--------------------------------------------------------------- xtics
774: sub start_xtics {
775: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
776: my $result='';
1.51 matthew 777: if ($target eq 'web' || $target eq 'tex') {
1.45 matthew 778: &get_attributes(\%xtics,\%tic_defaults,$parstack,$safeeval,
779: $tagstack->[-1]);
1.163 foxr 780: $current_tics = \%xtics;
781: &Apache::lonxml::register('Apache::lonplot', 'tic');
1.45 matthew 782: } elsif ($target eq 'edit') {
783: $result .= &Apache::edit::tag_start($target,$token,'xtics');
784: $result .= &edit_attributes($target,$token,\%tic_defaults,
785: \@tic_edit_order);
786: } elsif ($target eq 'modified') {
787: my $constructtag=&Apache::edit::get_new_args
788: ($token,$parstack,$safeeval,keys(%tic_defaults));
789: if ($constructtag) {
790: $result = &Apache::edit::rebuild_tag($token);
791: }
792: }
793: return $result;
794: }
795:
796: sub end_xtics {
797: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
798: my $result = '';
1.51 matthew 799: if ($target eq 'web' || $target eq 'tex') {
1.163 foxr 800: &Apache::lonxml::deregister('Apache::lonplot', 'tic');
1.45 matthew 801: } elsif ($target eq 'edit') {
802: $result.=&Apache::edit::tag_end($target,$token);
803: }
804: return $result;
805: }
806:
807: ##--------------------------------------------------------------- ytics
808: sub start_ytics {
809: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
810: my $result='';
1.51 matthew 811: if ($target eq 'web' || $target eq 'tex') {
1.45 matthew 812: &get_attributes(\%ytics,\%tic_defaults,$parstack,$safeeval,
813: $tagstack->[-1]);
1.163 foxr 814: $current_tics = \%ytics;
815: &Apache::lonxml::register('Apache::lonplot', 'tic');
1.45 matthew 816: } elsif ($target eq 'edit') {
817: $result .= &Apache::edit::tag_start($target,$token,'ytics');
818: $result .= &edit_attributes($target,$token,\%tic_defaults,
819: \@tic_edit_order);
820: } elsif ($target eq 'modified') {
821: my $constructtag=&Apache::edit::get_new_args
822: ($token,$parstack,$safeeval,keys(%tic_defaults));
823: if ($constructtag) {
824: $result = &Apache::edit::rebuild_tag($token);
825: }
826: }
827: return $result;
828: }
829:
830: sub end_ytics {
831: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
832: my $result = '';
1.51 matthew 833: if ($target eq 'web' || $target eq 'tex') {
1.163 foxr 834: &Apache::lonxml::deregister('Apache::lonplot', 'tic');
1.45 matthew 835: } elsif ($target eq 'edit') {
836: $result.=&Apache::edit::tag_end($target,$token);
837: }
838: return $result;
839: }
840:
1.163 foxr 841:
842: ##----------------------------------------------------------------
843: #
844: # Tic handling:
845: # The <tic> tag allows users to specify exact Tic positions and labels
846: # for each axis. In this version we only support level 0 tics (major tic).
847: # Each tic has associated with it a position and a label
848: # $current_tics is a reference to the current tick description hash.
849: # We add elements to an array in that has: ticspecs whose elements
850: # are 'pos' - the tick position and 'label' - the tic label.
851: #
852:
853:
854: sub start_tic {
855: my ($target, $token, $tagstack, $parstack, $parser, $safeeval, $style) = @_;
856:
857: my $result = '';
858: if ($target eq 'web' || $target eq 'tex') {
859: my $tic_location = &Apache::lonxml::get_param('location', $parstack, $safeeval);
860: my $tic_label = &Apache::lonxml::get_all_text('/tic', $parser);
861:
862: # Tic location must e a real:
863:
864: if (!&$real_test($tic_location)) {
865: &Apache::lonxml::warning("Tic location: $tic_location must be a real number");
866: } else {
867:
868: if (!defined $current_tics->{'ticspecs'}) {
869: $current_tics->{'ticspecs'} = [];
870: }
871: my $ticspecs = $current_tics->{'ticspecs'};
872: push (@$ticspecs, {'pos' => $tic_location, 'label' => $tic_label});
873: }
874: }
875:
876: return $result;
877: }
878:
879: sub end_tic {
880: return '';
881: }
882:
1.119 albertel 883: ##-----------------------------------------------------------------font
1.120 albertel 884: my %font_properties =
885: (
886: 'classic' => {
887: face => 'classic',
888: file => 'DejaVuSansMono-Bold',
889: printname => 'Helvetica',
1.121 albertel 890: tex_no_file => 1,
1.120 albertel 891: },
892: 'sans-serif' => {
893: face => 'sans-serif',
894: file => 'DejaVuSans',
895: printname => 'DejaVuSans',
896: },
897: 'serif' => {
898: face => 'serif',
899: file => 'DejaVuSerif',
900: printname => 'DejaVuSerif',
901: },
902: );
903:
1.119 albertel 904: sub get_font {
1.124 albertel 905: my ($target) = @_;
1.120 albertel 906: my ($size, $selected_font);
907:
1.119 albertel 908: if ( $Apache::lonplot::plot{'font'} =~ /^(small|medium|large)/) {
1.120 albertel 909: $selected_font = $font_properties{'classic'};
1.119 albertel 910: if ( $Apache::lonplot::plot{'font'} eq 'small') {
911: $size = '5';
912: } elsif ( $Apache::lonplot::plot{'font'} eq 'medium') {
913: $size = '9';
914: } elsif ( $Apache::lonplot::plot{'font'} eq 'large') {
1.126 albertel 915: $size = '11';
1.119 albertel 916: } else {
917: $size = '9';
918: }
919: } else {
1.122 albertel 920: $size = $Apache::lonplot::plot{'font'};
1.120 albertel 921: $selected_font = $font_properties{$Apache::lonplot::plot{'fontface'}};
1.119 albertel 922: }
1.124 albertel 923: if ($target eq 'tex' && defined($Apache::lonplot::plot{'texfont'})) {
1.146 foxr 924: # $selected_font = $font_properties{'classic'};
1.124 albertel 925: $size = $Apache::lonplot::plot{'texfont'};
926: }
1.120 albertel 927: return ($size, $selected_font);
1.119 albertel 928: }
1.45 matthew 929:
1.1 matthew 930: ##----------------------------------------------------------------- key
931: sub start_key {
932: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
933: my $result='';
1.51 matthew 934: if ($target eq 'web' || $target eq 'tex') {
1.17 matthew 935: &get_attributes(\%key,\%key_defaults,$parstack,$safeeval,
1.11 matthew 936: $tagstack->[-1]);
1.20 matthew 937: } elsif ($target eq 'edit') {
1.25 matthew 938: $result .= &Apache::edit::tag_start($target,$token,'Plot Key');
1.21 matthew 939: $result .= &edit_attributes($target,$token,\%key_defaults);
1.20 matthew 940: } elsif ($target eq 'modified') {
941: my $constructtag=&Apache::edit::get_new_args
1.24 matthew 942: ($token,$parstack,$safeeval,keys(%key_defaults));
1.20 matthew 943: if ($constructtag) {
944: $result = &Apache::edit::rebuild_tag($token);
945: }
1.4 matthew 946: }
1.1 matthew 947: return $result;
948: }
949:
950: sub end_key {
951: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
952: my $result = '';
1.51 matthew 953: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 954: } elsif ($target eq 'edit') {
1.21 matthew 955: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 956: }
1.1 matthew 957: return $result;
958: }
1.21 matthew 959:
1.128 albertel 960: sub parse_label {
961: my ($target,$text) = @_;
962: my $parser=HTML::LCParser->new(\$text);
963: my $result;
964: while (my $token=$parser->get_token) {
965: if ($token->[0] eq 'S') {
966: if ($token->[1] eq 'sub') {
967: $result .= '_{';
968: } elsif ($token->[1] eq 'sup') {
969: $result .= '^{';
970: } else {
971: $result .= $token->[4];
972: }
973: } elsif ($token->[0] eq 'E') {
974: if ($token->[1] eq 'sub'
975: || $token->[1] eq 'sup') {
976: $result .= '}';
977: } else {
978: $result .= $token->[2];
979: }
980: } elsif ($token->[0] eq 'T') {
981: $result .= &replace_entities($target,$token->[1]);
982: }
983: }
984: return $result;
985: }
986:
1.143 foxr 987: #
988: # Note that there are severe restrictions on font selection in the
989: # ps driver now. later in life Gnuplot is supposed to support
990: # utf-8 fonts in the posts script driver. When this happens,
991: # the tex entries with comments that include the word <FIX>
992: # should be changed to print the correct glyphs rather than some
993: # approximation or fallback of what is intended.
1.128 albertel 994:
995: my %lookup =
1.137 foxr 996: ( # Greek alphabet:
1.139 foxr 997:
998: '(Alpha|#913)' => {'tex' => '{/Symbol A}', 'web' => "\x{391}"},
999: '(Beta|#914)' => {'tex' => '{/Symbol B}', 'web' => "\x{392}"},
1000: '(Chi|#935)' => {'tex' => '{/Symbol C}', 'web' => "\x{3A7}"},
1001: '(Delta|#916)' => {'tex' => '{/Symbol D}', 'web' => "\x{394}"},
1002: '(Epsilon|#917)' => {'tex' => '{/Symbol E}', 'web' => "\x{395}"},
1003: '(Phi|#934)' => {'tex' => '{/Symbol F}', 'web' => "\x{3A6}"},
1004: '(Gamma|#915)' => {'tex' => '{/Symbol G}', 'web' => "\x{393}"},
1005: '(Eta|#919)' => {'tex' => '{/Symbol H}', 'web' => "\x{397}"},
1006: '(Iota|#921)' => {'tex' => '{/Symbol I}', 'web' => "\x{399}"},
1007: '(Kappa|#922)' => {'tex' => '{/Symbol K}', 'web' => "\x{39A}"},
1008: '(Lambda|#923)' => {'tex' => '{/Symbol L}', 'web' => "\x{39B}"},
1009: '(Mu|#924)' => {'tex' => '{/Symbol M}', 'web' => "\x{39C}"},
1010: '(Nu|#925)' => {'tex' => '{/Symbol N}', 'web' => "\x{39D}"},
1011: '(Omicron|#927)' => {'tex' => '{/Symbol O}', 'web' => "\x{39F}"},
1012: '(Pi|#928)' => {'tex' => '{/Symbol P}', 'web' => "\x{3A0}"},
1013: '(Theta|#920)' => {'tex' => '{/Symbol Q}', 'web' => "\x{398}"},
1014: '(Rho|#929)' => {'tex' => '{/Symbol R}', 'web' => "\x{3A1}"},
1015: '(Sigma|#931)' => {'tex' => '{/Symbol S}', 'web' => "\x{3A3}"},
1016: '(Tau|#932)' => {'tex' => '{/Symbol T}', 'web' => "\x{3A4}"},
1017: '(Upsilon|#933)' => {'tex' => '{/Symbol U}', 'web' => "\x{3A5}"},
1018: '(Omega|#937)' => {'tex' => '{/Symbol W}', 'web' => "\x{3A9}"},
1019: '(Xi|#926)' => {'tex' => '{/Symbol X}', 'web' => "\x{39E}"},
1020: '(Psi|#936)' => {'tex' => '{/Symbol Y}', 'web' => "\x{3A8}"},
1021: '(Zeta|#918)' => {'tex' => '{/Symbol Z}', 'web' => "\x{396}"},
1022: '(alpha|#945)' => {'tex' => '{/Symbol a}', 'web' => "\x{3B1}"},
1023: '(beta|#946)' => {'tex' => '{/Symbol b}', 'web' => "\x{3B2}"},
1024: '(chi|#967)' => {'tex' => '{/Symbol c}', 'web' => "\x{3C7}"},
1025: '(delta|#948)' => {'tex' => '{/Symbol d}', 'web' => "\x{3B4}"},
1026: '(epsilon|#949)' => {'tex' => '{/Symbol e}', 'web' => "\x{3B5}"},
1027: '(phi|#966)' => {'tex' => '{/Symbol f}', 'web' => "\x{3C6}"},
1028: '(gamma|#947)' => {'tex' => '{/Symbol g}', 'web' => "\x{3B3}"},
1029: '(eta|#951)' => {'tex' => '{/Symbol h}', 'web' => "\x{3B7}"},
1030: '(iota|#953)' => {'tex' => '{/Symbol i}', 'web' => "\x{3B9}"},
1031: '(kappa|#954)' => {'tex' => '{/Symbol k}', 'web' => "\x{3BA}"},
1032: '(lambda|#955)' => {'tex' => '{/Symbol k}', 'web' => "\x{3BB}"},
1033: '(mu|#956)' => {'tex' => '{/Symbol m}', 'web' => "\x{3BC}"},
1034: '(nu|#957)' => {'tex' => '{/Symbol n}', 'web' => "\x{3BD}"},
1035: '(omicron|#959)' => {'tex' => '{/Symbol o}', 'web' => "\x{3BF}"},
1036: '(pi|#960)' => {'tex' => '{/Symbol p}', 'web' => "\x{3C0}"},
1037: '(theta|#952)' => {'tex' => '{/Symbol q}', 'web' => "\x{3B8}"},
1038: '(rho|#961)' => {'tex' => '{/Symbol r}', 'web' => "\x{3C1}"},
1039: '(sigma|#963)' => {'tex' => '{/Symbol s}', 'web' => "\x{3C3}"},
1040: '(tau|#964)' => {'tex' => '{/Symbol t}', 'web' => "\x{3C4}"},
1041: '(upsilon|#965)' => {'tex' => '{/Symbol u}', 'web' => "\x{3C5}"},
1042: '(omega|#969)' => {'tex' => '{/Symbol w}', 'web' => "\x{3C9}"},
1043: '(xi|#958)' => {'tex' => '{/Symbol x}', 'web' => "\x{3BE}"},
1044: '(psi|#968)' => {'tex' => '{/Symbol y}', 'web' => "\x{3C8}"},
1045: '(zeta|#950)' => {'tex' => '{/Symbol z}', 'web' => "\x{3B6}"},
1046: '(thetasym|#977)' => {'tex' => '{/Symbol \165}', 'web' => "\x{3d1}"},
1047: '(upsih|#978)' => {'tex' => '{/Symbol \241}', 'web' => "\x{3d2}"},
1048: '(piv|#982)' => {'tex' => '{/Symbol \166}', 'web' => "\x{3d6}"},
1.137 foxr 1049:
1050:
1051: # Punctuation:
1052:
1.138 foxr 1053: '(quot|#034)' => {'tex' => '\42', 'web' => '\42'},
1054: '(amp|#038)' => {'tex' => '\46', 'web' => '\46'},
1055: '(lt|#060)' => {'tex' => '\74', 'web' => '\74'},
1056: '(gt|#062)' => {'tex' => '\76', 'web' => '\76'},
1.137 foxr 1057: '#131' => {'tex' => '{/Symbol \246}', 'web' => "\x{192}"},
1.138 foxr 1058: '#132' => {'tex' => '{/Text \271}', 'web' => "\x{201e}"},
1059: '#133' => {'tex' => '{/Symbol \274}', 'web'=> "\x{2026}"},
1060: '#134' => {'tex' => '{/Text \262}', 'web' => "\x{2020}"},
1061: '#135' => {'tex' => '{/Text \263}', 'web' => "\x{2021}"},
1062: '#136' => {'tex' => '\\\\^', 'web' => '\\\\^'},
1.143 foxr 1063: '#137' => {'tex' => '%o', 'web' => "\x{2030}"}, # Per Mille <FIX>
1064: '#138' => {'tex' => 'S', 'web' => "\x{160}"}, # S-Caron <FIX>
1.138 foxr 1065: '#139' => {'tex' => '<', 'web' => '<'},
1.143 foxr 1066: '#140' => {'tex' => 'AE', 'web' => "\x{152}"}, # AE ligature <FIX>
1.138 foxr 1067: '#145' => {'tex' => '\140', 'web' => "\x{2018}"},
1068: '#146' => {'tex' => '\47', 'web' => "\x{2019}"},
1.143 foxr 1069: '#147' => {'tex' => '\140\140', 'web' => "\x{201c}"}, # Left " <FIX>
1070: '#148' => {'tex' => '\47\47', 'web' => '\\"'}, # Right " <FIX>
1.138 foxr 1071: '#149' => {'tex' => '{/Symbol \267}', 'web' => "\x{2022}"},
1.143 foxr 1072: '#150' => {'tex' => '{/Text \55}', 'web' => "\x{2013}"}, # en dash
1.138 foxr 1073: '#151' => {'tex' => '{/Symbol \55}', 'web' => "\x{2014}"}, # em dash
1.143 foxr 1074: '#152' => {'tex' => '\\\\~', 'web' => '\\\\~'},
1075: '#153' => {'tex' => '{/Symbol \324}', 'web' => "\x{2122}"}, # trademark
1.139 foxr 1076:
1077: # Accented letters, and other furreign language glyphs.
1078:
1.138 foxr 1079: '#154' => {'tex' => 's', 'web' => "\x{161}"}, # small s-caron no ps.
1080: '#155' => {'tex' => '>', 'web' => '\76'}, # >
1.143 foxr 1081: '#156' => {'tex' => '{/Text \366}', 'web' => "\x{153}"}, # oe ligature.<FIX>
1082: '#159', => {'tex' => 'Y', 'web' => "\x{178}"}, # Y-umlaut - can't print <FIX>
1.138 foxr 1083: '(nbsp|#160)' => {'tex' => ' ', 'web' => ' '}, # non breaking space.
1084: '(iexcl|#161)' => {'tex' => '{/Text \241}', 'web' => "\x{a1}"}, # inverted !
1085: '(cent|#162)' => {'tex' => '{/Text \242}', 'web' => "\x{a2}"}, # Cent currency.
1.142 foxr 1086: '(pound|#163)' => {'tex' => '{/Text \243}', 'web' => "\x{a3}"}, # GB Pound currency.
1.143 foxr 1087: '(curren|#164)' => {'tex' => '{/ZapfDingbats \161}','web' => "\x{a4}"}, # Generic currency symb. <FIX>
1.138 foxr 1088: '(yen|#165)' => {'tex' => '{/Text \245}', 'web' => "\x{a5}"}, # Yen currency.
1089: '(brvbar|#166)' => {'tex' => '{/Symbol \174}', 'web' => "\x{a6}"}, # Broken vert bar no print.
1090: '(sect|#167)' => {'tex' => '{\247}', 'web' => "\x{a7}"}, # Section symbol.
1091: '(uml|#168)' => {'tex' => '{\250}', 'web' => "\x{a8}"}, # 'naked' umlaut.
1092: '(copy|#169)' => {'tex' => '{/Symbol \343}', 'web' => "\x{a9}"}, # Copyright symbol.
1093: '(ordf|#170)' => {'tex' => '{/Text \343}', 'web' => "\x{aa}"}, # Feminine ordinal.
1094: '(laquo|#171)' => {'tex' => '{/Text \253}', 'web' => "\x{ab}"}, # << quotes.
1095: '(not|#172)' => {'tex' => '\254', 'web' => "\x{ac}"}, # Logical not.
1.143 foxr 1096: '(shy|#173)' => {'tex' => '\255', 'web' => "\x{ad}"}, # soft hyphen.
1.138 foxr 1097: '(reg|#174)' => {'tex' => '{/Symbol \342}', 'web' => "\x{ae}"}, # Registered tm.
1.143 foxr 1098: '(macr|#175)' => {'tex' => '^{\255}', 'web' => "\x{af}"}, # 'naked' macron (overbar).
1099: '(deg|#176)' => {'tex' => '{/Text \260}', 'web' => "\x{b0}"}, # Degree symbo..`
1.138 foxr 1100: '(plusmn|#177)' => {'tex' => '{/Symbol \261}', 'web' => "\x{b1}"}, # +/- symbol.
1101: '(sup2|#178)' => {'tex' => '^2', 'web' => "\x{b2}"}, # Superscript 2.
1102: '(sup3|#179)' => {'tex' => '^3', 'web' => "\x{b3}"}, # Superscript 3.
1.143 foxr 1103: '(acute|#180)' => {'tex' => '{/Text \222}', 'web' => "\x{b4}"}, # 'naked' acute accent.
1.138 foxr 1104: '(micro|#181)' => {'tex' => '{/Symbol \155}', 'web' => "\x{b5}"}, # Micro (small mu).
1105: '(para|#182)' => {'tex' => '{/Text \266}', 'web' => "\x{b6}"}, # Paragraph symbol.
1.143 foxr 1106: '(middot|#183)' => {'tex' => '\267', 'web' => "\x{b7}"}, # middle dot
1.138 foxr 1107: '(cedil|#184)' => {'tex' => '\233', 'web' => "\x{b8}"}, # 'naked' cedilla.
1108: '(sup1|#185)' => {'tex' => '^1', 'web' => "\x{b9}"}, # superscript 1.
1.143 foxr 1109: '(ordm|#186)' => {'tex' => '{\260}', 'web' => "\x{ba}"}, # masculine ordinal.
1.138 foxr 1110: '(raquo|#187)', => {'tex' => '\273', 'web' => "\x{bb}"}, # Right angle quotes.
1111: '(frac14|#188)' => {'tex' => '\274', 'web' => "\x{bc}"}, # 1/4.
1112: '(frac12|#189)' => {'tex' => '\275', 'web' => "\x{bd}"}, # 1/2.
1113: '(frac34|#190)' => {'tex' => '\276', 'web' => "\x{be}"}, # 3/4
1114: '(iquest|#191)' => {'tex' => '{/Text \277}', 'web' => "\x{bf}"}, # Inverted ?
1115: '(Agrave|#192)' => {'tex' => '\300', 'web' => "\x{c0}"}, # A Grave.
1116: '(Aacute|#193)' => {'tex' => '\301', 'web' => "\x{c1}"}, # A Acute.
1117: '(Acirc|#194)' => {'tex' => '\302', 'web' => "\x{c2}"}, # A Circumflex.
1118: '(Atilde|#195)' => {'tex' => '\303', 'web' => "\x{c3}"}, # A tilde.
1119: '(Auml|#196)' => {'tex' => '\304', 'web' => "\x{c4}"}, # A umlaut.
1120: '(Aring|#197)' => {'tex' => '\305', 'web' => "\x{c5}"}, # A ring.
1.139 foxr 1121: '(AElig|#198)' => {'tex' => '\306', 'web' => "\x{c6}"}, # AE ligature.
1122: '(Ccedil|#199)' => {'tex' => '\307', 'web' => "\x{c7}"}, # C cedilla
1123: '(Egrave|#200)' => {'tex' => '\310', 'web' => "\x{c8}"}, # E Accent grave.
1124: '(Eacute|#201)' => {'tex' => '\311', 'web' => "\x{c9}"}, # E acute accent.
1125: '(Ecirc|#202)' => {'tex' => '\312', 'web' => "\x{ca}"}, # E Circumflex.
1126: '(Euml|#203)' => {'tex' => '\313', 'web' => "\x{cb}"}, # E umlaut.
1127: '(Igrave|#204)' => {'tex' => '\314', 'web' => "\x{cc}"}, # I grave accent.
1128: '(Iacute|#205)' => {'tex' => '\315', 'web' => "\x{cd}"}, # I acute accent.
1129: '(Icirc|#206)' => {'tex' => '\316', 'web' => "\x{ce}"}, # I circumflex.
1130: '(Iuml|#207)' => {'tex' => '\317', 'web' => "\x{cf}"}, # I umlaut.
1131: '(ETH|#208)' => {'tex' => '\320', 'web' => "\x{d0}"}, # Icelandic Cap eth.
1132: '(Ntilde|#209)' => {'tex' => '\321', 'web' => "\x{d1}"}, # Ntilde (enyan).
1133: '(Ograve|#210)' => {'tex' => '\322', 'web' => "\x{d2}"}, # O accent grave.
1134: '(Oacute|#211)' => {'tex' => '\323', 'web' => "\x{d3}"}, # O accent acute.
1135: '(Ocirc|#212)' => {'tex' => '\324', 'web' => "\x{d4}"}, # O circumflex.
1136: '(Otilde|#213)' => {'tex' => '\325', 'web' => "\x{d5}"}, # O tilde.
1137: '(Ouml|#214)' => {'tex' => '\326', 'web' => "\x{d6}"}, # O umlaut.
1138: '(times|#215)' => {'tex' => '\327', 'web' => "\x{d7}"}, # Times symbol.
1139: '(Oslash|#216)' => {'tex' => '\330', 'web' => "\x{d8}"}, # O slash.
1140: '(Ugrave|#217)' => {'tex' => '\331', 'web' => "\x{d9}"}, # U accent grave.
1141: '(Uacute|#218)' => {'tex' => '\332', 'web' => "\x{da}"}, # U accent acute.
1142: '(Ucirc|#219)' => {'tex' => '\333', 'web' => "\x{db}"}, # U circumflex.
1143: '(Uuml|#220)' => {'tex' => '\334', 'web' => "\x{dc}"}, # U umlaut.
1144: '(Yacute|#221)' => {'tex' => '\335', 'web' => "\x{dd}"}, # Y accent acute.
1145: '(THORN|#222)' => {'tex' => '\336', 'web' => "\x{de}"}, # Icelandic thorn.
1146: '(szlig|#223)' => {'tex' => '\337', 'web' => "\x{df}"}, # German sharfes s.
1147: '(agrave|#224)' => {'tex' => '\340', 'web' => "\x{e0}"}, # a accent grave.
1148: '(aacute|#225)' => {'tex' => '\341', 'web' => "\x{e1}"}, # a grave.
1149: '(acirc|#226)' => {'tex' => '\342', 'web' => "\x{e2}"}, # a circumflex.
1150: '(atilde|#227)' => {'tex' => '\343', 'web' => "\x{e3}"}, # a tilde.
1151: '(auml|#228)' => {'tex' => '\344', 'web' => "\x{e4}"}, # a umlaut
1152: '(aring|#229)' => {'tex' => '\345', 'web' => "\x{e5}"}, # a ring on top.
1153: '(aelig|#230)' => {'tex' => '\346', 'web' => "\x{e6}"}, # ae ligature.
1.142 foxr 1154: '(ccedil|#231)' => {'tex' => '\347', 'web' => "\x{e7}"}, # C cedilla
1.139 foxr 1155: '(egrave|#232)' => {'tex' => '\350', 'web' => "\x{e8}"}, # e accent grave.
1156: '(eacute|#233)' => {'tex' => '\351', 'web' => "\x{e9}"}, # e accent acute.
1157: '(ecirc|#234)' => {'tex' => '\352', 'web' => "\x{ea}" }, # e circumflex.
1158: '(euml|#235)' => {'tex' => '\353', 'web' => "\x{eb}"}, # e umlaut.
1159: '(igrave|#236)' => {'tex' => '\354', 'web' => "\x{ec}"}, # i grave.
1.142 foxr 1160: '(iacute|#237)' => {'tex' => '\355', 'web' => "\x{ed}"}, # i acute.
1161: '(icirc|#238)' => {'tex' => '\356', 'web' => "\x{ee}"}, # i circumflex.
1.139 foxr 1162: '(iuml|#239)' => {'tex' => '\357', 'web' => "\x{ef}"}, # i umlaut.
1163: '(eth|#240)' => {'tex' => '\360', 'web' => "\x{f0}"}, # Icelandic eth.
1164: '(ntilde|#241)' => {'tex' => '\361', 'web' => "\x{f1}"}, # n tilde.
1165: '(ograve|#242)' => {'tex' => '\362', 'web' => "\x{f2}"}, # o grave.
1166: '(oacute|#243)' => {'tex' => '\363', 'web' => "\x{f3}"}, # o acute.
1.143 foxr 1167: '(ocirc|#244)' => {'tex' => '\364', 'web' => "\x{f4}"}, # o circumflex.
1.139 foxr 1168: '(otilde|#245)' => {'tex' => '\365', 'web' => "\x{f5}"}, # o tilde.
1169: '(ouml|#246)' => {'tex' => '\366', 'web' => "\x{f6}"}, # o umlaut.
1170: '(divide|#247)' => {'tex' => '\367', 'web' => "\x{f7}"}, # division symbol
1171: '(oslash|#248)' => {'tex' => '\370', 'web' => "\x{f8}"}, # o slashed.
1172: '(ugrave|#249)' => {'tex' => '\371', 'web' => "\x{f9}"}, # u accent grave.
1173: '(uacute|#250)' => {'tex' => '\372', 'web' => "\x{fa}"}, # u acute.
1174: '(ucirc|#251)' => {'tex' => '\373', 'web' => "\x{fb}"}, # u circumflex.
1175: '(uuml|#252)' => {'tex' => '\374', 'web' => "\x{fc}"}, # u umlaut.
1176: '(yacute|#253)' => {'tex' => '\375', 'web' => "\x{fd}"}, # y acute accent.
1177: '(thorn|#254)' => {'tex' => '\376', 'web' => "\x{fe}"}, # small thorn (icelandic).
1178: '(yuml|#255)' => {'tex' => '\377', 'web' => "\x{ff}"}, # y umlaut.
1179:
1180: # Latin extended A entities:
1181:
1.143 foxr 1182: '(OElig|#338)' => {'tex' => '{/Text \326}', 'web' => "\x{152}"}, # OE ligature.
1183: '(oelig|#339)' => {'tex' => '{/Text \366}', 'web' => "\x{153}"}, # oe ligature.
1.139 foxr 1184: '(Scaron|#352)' => {'tex' => 'S', 'web' => "\x{160}"}, # S caron no printable.
1185: '(scaron|#353)' => {'tex' => 's', 'web' => "\x{161}"}, # s caron no printable.
1186: '(Yuml|#376)' => {'tex' => 'Y', 'web' => "\x{178}"}, # Y umlaut - no printable.
1187:
1188: # Latin extended B.
1189:
1.143 foxr 1190: '(fnof|#402)' => {'tex' =>'{/Symbol \246}', 'web' => "\x{192}"}, # f with little hook.
1.139 foxr 1191:
1.140 foxr 1192: # Standalone accents:
1.139 foxr 1193:
1194: '(circ|#710)' => {'tex' => '^', 'web' => '^'}, # circumflex.
1195: '(tilde|#732)' => {'tex' => '~', 'web' => '~'}, # tilde.
1196:
1.140 foxr 1197: # General punctuation. We're not able to make a distinction between
1198: # the various length spacings in the print version. (e.g. en/em/thin).
1199: # the various joiners will be empty strings in the print version too.
1200:
1201:
1202: '(ensp|#8194)' => {'tex' => ' ', 'web' => "\x{2002}"}, # en space.
1203: '(emsp|#8195)' => {'tex' => ' ', 'web' => "\x{2003}"}, # em space.
1204: '(thinsp|#8201)' => {'tex' => ' ', 'web' => "\x{2009}"}, # thin space.
1.144 foxr 1205: '(zwnj|#8204)' => {'tex' => ' ', 'web' => "\x{200c}"}, # Zero width non joiner.
1206: '(zwj|#8205)' => {'tex' => ' ', 'web' => "\x{200d}"}, # Zero width joiner.
1207: '(lrm|#8206)' => {'tex' => ' ', 'web' => "\x{200e}"}, # Left to right mark
1208: '(rlm|#8207)' => {'tex' => ' ', 'web' => "\x{200f}"}, # right to left mark.
1.140 foxr 1209: '(ndash|#8211)' => {'tex' => '{/Text \55}', 'web' => "\x{2013}"}, # en dash.
1210: '(mdash|#8212)' => {'tex' => '{/Symbol \55}', 'web' => "\x{2014}"}, # em dash.
1211: '(lsquo|#8216)' => {'tex' => '{/Text \140}', 'web' => "\x{2018}"}, # Left single quote.
1.144 foxr 1212: '(rsquo|#8217)' => {'tex' => '\47', 'web' => "\x{2019}"}, # Right single quote.
1213: '(sbquo|#8218)' => {'tex' => '\54', 'web' => "\x{201a}"}, # Single low-9 quote.
1214: '(ldquo|#8220)' => {'tex' => '\42', 'web' => "\x{201c}"}, # Left double quote.
1215: '(rdquo|#8221)' => {'tex' => '\42', 'web' => "\x{201d}"}, # Right double quote.
1216: '(bdquo|#8222)' => {'tex' => ',', 'web' => "\x{201e}"}, # Double low-9 quote.
1217: '(dagger|#8224)' => {'tex' => '+', 'web' => "\x{2020}"}, # Is this a dagger I see before me now?
1.145 foxr 1218: '(Dagger|#8225)' => {'tex' => '\261', 'web' => "\x{2021}"}, # it's handle pointing towards my heart?
1.140 foxr 1219: '(bull|#8226)' => {'tex' => '\267', 'web' => "\x{2022}"}, # Bullet.
1.144 foxr 1220: '(hellep|#8230)' => {'tex' => '{/Symbol \274}', 'web' => "\x{2026}"}, # Ellipses.
1221: '(permil|#8240)' => {'tex' => '%_o', 'web' => "\x{2031}"}, # Per mille.
1.140 foxr 1222: '(prime|#8242)' => {'tex' => '\264', 'web' => "\x{2032}"}, # Prime.
1223: '(Prime|#8243)' => {'tex' => '{/Symbol \262}', 'web' => "\x{2033}"}, # double prime.
1.144 foxr 1224: '(lsaquo|#8249)' => {'tex' => '<', 'web' => "\x{2039}"}, # < quote.
1225: '(rsaquo|#8250)' => {'tex' => '\74', 'web' => "\x{203a}"}, # > quote.
1.140 foxr 1226: '(oline|#8254)' => {'tex' => '{/Symbol \140}', 'web' => "\x{203e}"}, # Overline.
1227: '(frasl|#8260)' => {'tex' => '/', 'web' => "\x{2044}"}, # Fraction slash.
1.144 foxr 1228: '(euro|#8364)' => {'tex' => '{/Symbol \240}', 'web' => "\x{20ac}"}, # Euro currency.
1.140 foxr 1229:
1230: # Letter like symbols.
1231:
1232: '(weierp|#8472)' => {'tex' => '{/Symbol \303}', 'web' => "\x{2118}"}, # Power set symbol
1233: '(image|#8465)' => {'tex' => '{/Symbol \301}', 'web' => "\x{2111}"}, # Imaginary part
1234: '(real|#8476)' => {'tex' => '{/Symbol \302}', 'web' => "\x{211c}"}, # Real part.
1235: '(trade|#8482)' => {'tex' => '{/Symbol \344}', 'web' => "\x{2122}"}, # trademark symbol.
1236: '(alefsym|#8501)' => {'tex' => '{/Symbol \300}', 'web' => "\x{2135}"}, # Hebrew alef.
1237:
1238: # Arrows of various types and directions.
1239: '(larr|#8592)' => {'tex' => '{/Symbol \254}', 'web' => "\x{2190}"}, # <--
1.142 foxr 1240: '(uarr|#8593)' => {'tex' => '{/Symbol \255}', 'web' => "\x{2191}"}, # up arrow.
1.140 foxr 1241: '(rarr|#8594)' => {'tex' => '{/Symbol \256}', 'web' => "\x{2192}"}, # -->
1242: '(darr|#8595)' => {'tex' => '{/Symbol \257}', 'web' => "\x{2193}"}, # down arrow.
1243: '(harr|#8596)' => {'tex' => '{/Symbol \253}', 'web' => "\x{2194}"}, # <-->
1244: '(crarr|#8629)' => {'tex' => '{/Symbol \277}', 'web' => "\x{21b5}"}, # corner arrow down and right.
1245: '(lArr|#8656)' => {'tex' => '{/Symbol \334}', 'web' => "\x{21d0}"}, # <==
1246: '(uArr|#8657)' => {'tex' => '{/Symbol \335}', 'web' => "\x{21d1}"}, # Up double arrow.
1247: '(rArr|#8658)' => {'tex' => '{/Symbol \336}', 'web' => "\x{21d2}"}, # ==>
1248: '(dArr|#8659)' => {'tex' => '{/Symbol \337}', 'web' => "\x{21d3}"}, # Down double arrow.
1249: '(hArr|#8660)' => {'tex' => '{/Symbol \333}', 'web' => "\x{21d4}"}, # <==>
1250:
1251: # Mathematical operators. For some of these we do the best we can in printing.
1252:
1253: '(forall|#8704)' => {'tex' => '{/Symbol \42}', 'web' => "\x{2200}"}, # For all.
1254: '(part|#8706)' => {'tex' => '{/Symbol d}', 'web' => "\x{2202}"}, # partial derivative
1255: '(exist|#8707)' => {'tex' => '{/Symbol \44}', 'web' => "\x{2203}"}, # There exists.
1256: '(empty|#8709)' => {'tex' => '{/Symbol \306}', 'web' => "\x{2205}"}, # Null set.
1257: '(nabla|#8711)' => {'tex' => '{/Symbol \321}', 'web' => "\x{2207}"}, # Gradient e.g.
1258: '(isin|#8712)' => {'tex' => '{/Symbol \316}', 'web' => "\x{2208}"}, # Element of the set.
1.145 foxr 1259: '(notin|#8713)' => {'tex' => '{/Symbol \317}', 'web' => "\x{2209}"}, # Not an element of
1.140 foxr 1260: '(ni|#8715)' => {'tex' => '{/Symbol \47}', 'web' => "\x{220b}"}, # Contains as a member
1261: '(prod|#8719)' => {'tex' => '{/Symbol \325}', 'web' => "\x{220f}"}, # Product
1262: '(sum|#8721)' => {'tex' => '{/Symbol \345}', 'web' => "\x{2211}"}, # Sum of.
1.145 foxr 1263: '(minus|#8722)' => {'tex' => '{/Symbol \55}', 'web' => "\x{2212}"}, # - sign.
1.140 foxr 1264: '(lowast|#8727)' => {'tex' => '*', 'web' => "\x{2217}"}, # *
1265: '(radic|#8730)' => {'tex' => '{/Symbol \326}', 'web' => "\x{221a}"}, # Square root.
1266: '(prop|#8733)' => {'tex' => '{/Symbol \265}', 'web' => "\x{221d}"}, # Proportional to.
1267: '(infin|#8734)' => {'tex' => '{/Symbol \245}', 'web' => "\x{221e}"}, # Infinity.
1268: '(ang|#8736)' => {'tex' => '{/Symbol \320}', 'web' => "\x{2220}"}, # Angle .
1269: '(and|#8743)' => {'tex' => '{/Symbol \331}', 'web' => "\x{2227}"}, # Logical and.
1270: '(or|#8744)' => {'tex' => '{/Symbol \332}', 'web' => "\x{2228}"}, # Logical or.
1271: '(cap|#8745)' => {'tex' => '{/Symbol \307}', 'web' => "\x{2229}"}, # Set intersection.
1272: '(cup|#8746)' => {'tex' => '{/Symbol \310}', 'web' => "\x{222a}"}, # Set union.
1273: '(int|8747)' => {'tex' => '{/Symbol \362}', 'web' => "\x{222b}"}, # Integral.
1.145 foxr 1274:
1275: # Some gnuplot guru will have to explain to me why the next three
1276: # require the extra slashes... else they print very funkily.
1277:
1278: '(there4|#8756)' => {'tex' => '{/Symbol \\\134}', 'web' => "\x{2234}"}, # Therefore triple dots.
1279: '(sim|#8764)' => {'tex' => '\\\176', 'web' => "\x{223c}"}, # Simlar to.
1280: '(cong|#8773)' => {'tex' => '{/Symbol \\\100}','web' => "\x{2245}"}, # Congruent to/with.
1281:
1282: '(asymp|#8776)' => {'tex' => '{/Symbol \273}', 'web' => "\x{2248}"}, # Asymptotic to.
1.141 foxr 1283: '(ne|#8800)' => {'tex' => '{/Symbol \271}', 'web' => "\x{2260}"}, # not equal to.
1284: '(equiv|#8801)' => {'tex' => '{/Symbol \272}', 'web' => "\x{2261}"}, # Equivalent to.
1285: '(le|8804)' => {'tex' => '{/Symbol \243}', 'web' => "\x{2264}"}, # Less than or equal to.
1286: '(ge|8805)' => {'tex' => '{/Symbol \263}', 'web' => "\x{2265}"}, # Greater than or equal to
1287: '(sub|8834)' => {'tex' => '{/Symbol \314}', 'web' => "\x{2282}"}, # Subset of.
1288: '(sup|8835)' => {'tex' => '{/Symbol \311}', 'web' => "\x{2283}"}, # Super set of.
1289: '(nsub|8836)' => {'tex' => '{/Symbol \313}', 'web' => "\x{2284}"}, # not subset of.
1290: '(sube|8838)' => {'tex' => '{/Symbol \315}', 'web' => "\x{2286}"}, # Subset or equal.
1291: '(supe|8839)' => {'tex' => '{/Symbol \312}', 'web' => "\x{2287}"}, # Superset or equal
1292: '(oplus|8853)' => {'tex' => '{/Symbol \305}', 'web' => "\x{2295}"}, # O with plus inside
1293: '(otimes|8855)' => {'tex' => '{/Symbol \304}', 'web' => "\x{2297}"}, # O with times.
1294: '(perp|8869)' => {'tex' => '{/Symbol \136}', 'web' => "\x{22a5}"}, # Perpendicular.
1295: '(sdot|8901)' => {'tex' => '{/Symbol \227}', 'web' => "\x{22c5}"}, # Dot operator.
1296:
1297: # Misc. technical symbols:
1298:
1299: '(lceil|8698)' => {'tex' => '{/Symbol \351}', 'web' => "\x{2308}"}, # Left ceiling.
1300: '(rceil|8969)' => {'tex' => '{/Symbol \371}', 'web' => "\x{2309}"}, # Right ceiling.
1301: '(lfloor|8970)' => {'tex' => '{/Symbol \353}', 'web' => "\x{230a}"}, # Left floor.
1302: '(rfloor|8971)' => {'tex' => '{/Symbol \373}', 'web' => "\x{230b}"}, # Right floor.
1.145 foxr 1303:
1304: # The gnuplot png font evidently does not have the big angle brackets at
1305: # positions 0x2329, 0x232a so use ordinary brackets.
1306:
1307: '(lang|9001)' => {'tex' => '{/Symbol \341}', 'web' => '<'}, # Left angle bracket.
1308: '(rang|9002)' => {'tex' => '{/Symbol \361}', 'web' => '>'}, # Right angle bracket.
1.141 foxr 1309:
1310: # Gemoetric shapes.
1311:
1312: '(loz|9674)' => {'tex' => '{/Symbol \340}', 'web' => "\x{25ca}"}, # Lozenge.
1313:
1314: # Misc. symbols
1315:
1316: '(spades|9824)' => {'tex' => '{/Symbol \252}', 'web' => "\x{2660}"},
1317: '(clubs|9827)' => {'tex' => '{/Symbol \247}', 'web' => "\x{2663}"},
1318: '(hearts|9829)' => {'tex' => '{/Symbol \251}', 'web' => "\x{2665}"},
1319: '(diams|9830)' => {'tex' => '{/Symbol \250}', 'web' => "\x{2666}"}
1.139 foxr 1320:
1.133 albertel 1321: );
1322:
1.128 albertel 1323:
1324: sub replace_entities {
1325: my ($target,$text) = @_;
1326: $text =~ s{([_^~\{\}]|\\\\)}{\\\\$1}g;
1327: while (my ($re, $replace) = each(%lookup)) {
1.137 foxr 1328: my $repl = $replace->{$target};
1.128 albertel 1329: $text =~ s/&$re;/$replace->{$target}/g;
1330: }
1331: $text =~ s{(&)}{\\\\$1}g;
1332: return $text;
1.127 albertel 1333: }
1334:
1.1 matthew 1335: ##------------------------------------------------------------------- title
1336: sub start_title {
1337: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1338: my $result='';
1.51 matthew 1339: if ($target eq 'web' || $target eq 'tex') {
1.112 albertel 1340: $title = &Apache::lonxml::get_all_text("/title",$parser,$style);
1.58 matthew 1341: $title=&Apache::run::evaluate($title,$safeeval,$$parstack[-1]);
1.49 matthew 1342: $title =~ s/\n/ /g;
1.32 matthew 1343: if (length($title) > $max_str_len) {
1344: $title = substr($title,0,$max_str_len);
1345: }
1.128 albertel 1346: $title = &parse_label($target,$title);
1.20 matthew 1347: } elsif ($target eq 'edit') {
1.25 matthew 1348: $result.=&Apache::edit::tag_start($target,$token,'Plot Title');
1.112 albertel 1349: my $text=&Apache::lonxml::get_all_text("/title",$parser,$style);
1.116 albertel 1350: $result.=&Apache::edit::editline('',$text,'',60);
1.20 matthew 1351: } elsif ($target eq 'modified') {
1.42 matthew 1352: $result.=&Apache::edit::rebuild_tag($token);
1.93 albertel 1353: $result.=&Apache::edit::modifiedfield("/title",$parser);
1.4 matthew 1354: }
1.1 matthew 1355: return $result;
1356: }
1357:
1358: sub end_title {
1359: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1360: my $result = '';
1.51 matthew 1361: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 1362: } elsif ($target eq 'edit') {
1.27 matthew 1363: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 1364: }
1.1 matthew 1365: return $result;
1366: }
1367: ##------------------------------------------------------------------- xlabel
1368: sub start_xlabel {
1369: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1370: my $result='';
1.51 matthew 1371: if ($target eq 'web' || $target eq 'tex') {
1.112 albertel 1372: $xlabel = &Apache::lonxml::get_all_text("/xlabel",$parser,$style);
1.58 matthew 1373: $xlabel=&Apache::run::evaluate($xlabel,$safeeval,$$parstack[-1]);
1.49 matthew 1374: $xlabel =~ s/\n/ /g;
1.32 matthew 1375: if (length($xlabel) > $max_str_len) {
1376: $xlabel = substr($xlabel,0,$max_str_len);
1377: }
1.128 albertel 1378: $xlabel = &parse_label($target,$xlabel);
1.20 matthew 1379: } elsif ($target eq 'edit') {
1.25 matthew 1380: $result.=&Apache::edit::tag_start($target,$token,'Plot Xlabel');
1.112 albertel 1381: my $text=&Apache::lonxml::get_all_text("/xlabel",$parser,$style);
1.116 albertel 1382: $result.=&Apache::edit::editline('',$text,'',60);
1.20 matthew 1383: } elsif ($target eq 'modified') {
1.42 matthew 1384: $result.=&Apache::edit::rebuild_tag($token);
1.93 albertel 1385: $result.=&Apache::edit::modifiedfield("/xlabel",$parser);
1.4 matthew 1386: }
1.1 matthew 1387: return $result;
1388: }
1389:
1390: sub end_xlabel {
1391: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1392: my $result = '';
1.51 matthew 1393: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 1394: } elsif ($target eq 'edit') {
1.27 matthew 1395: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 1396: }
1.1 matthew 1397: return $result;
1398: }
1.21 matthew 1399:
1.1 matthew 1400: ##------------------------------------------------------------------- ylabel
1401: sub start_ylabel {
1402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1403: my $result='';
1.51 matthew 1404: if ($target eq 'web' || $target eq 'tex') {
1.112 albertel 1405: $ylabel = &Apache::lonxml::get_all_text("/ylabel",$parser,$style);
1.58 matthew 1406: $ylabel = &Apache::run::evaluate($ylabel,$safeeval,$$parstack[-1]);
1.49 matthew 1407: $ylabel =~ s/\n/ /g;
1.32 matthew 1408: if (length($ylabel) > $max_str_len) {
1409: $ylabel = substr($ylabel,0,$max_str_len);
1410: }
1.128 albertel 1411: $ylabel = &parse_label($target,$ylabel);
1.20 matthew 1412: } elsif ($target eq 'edit') {
1.25 matthew 1413: $result .= &Apache::edit::tag_start($target,$token,'Plot Ylabel');
1.112 albertel 1414: my $text = &Apache::lonxml::get_all_text("/ylabel",$parser,$style);
1.116 albertel 1415: $result .= &Apache::edit::editline('',$text,'',60);
1.20 matthew 1416: } elsif ($target eq 'modified') {
1.42 matthew 1417: $result.=&Apache::edit::rebuild_tag($token);
1.93 albertel 1418: $result.=&Apache::edit::modifiedfield("/ylabel",$parser);
1.4 matthew 1419: }
1.1 matthew 1420: return $result;
1421: }
1422:
1423: sub end_ylabel {
1424: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1425: my $result = '';
1.51 matthew 1426: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 1427: } elsif ($target eq 'edit') {
1.27 matthew 1428: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 1429: }
1.1 matthew 1430: return $result;
1431: }
1.21 matthew 1432:
1.1 matthew 1433: ##------------------------------------------------------------------- label
1434: sub start_label {
1435: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1436: my $result='';
1.51 matthew 1437: if ($target eq 'web' || $target eq 'tex') {
1.17 matthew 1438: my %label;
1439: &get_attributes(\%label,\%label_defaults,$parstack,$safeeval,
1.11 matthew 1440: $tagstack->[-1]);
1.112 albertel 1441: my $text = &Apache::lonxml::get_all_text("/label",$parser,$style);
1.58 matthew 1442: $text = &Apache::run::evaluate($text,$safeeval,$$parstack[-1]);
1.49 matthew 1443: $text =~ s/\n/ /g;
1.32 matthew 1444: $text = substr($text,0,$max_str_len) if (length($text) > $max_str_len);
1.128 albertel 1445: $label{'text'} = &parse_label($target,$text);
1.17 matthew 1446: push(@labels,\%label);
1.20 matthew 1447: } elsif ($target eq 'edit') {
1.25 matthew 1448: $result .= &Apache::edit::tag_start($target,$token,'Plot Label');
1.21 matthew 1449: $result .= &edit_attributes($target,$token,\%label_defaults);
1.112 albertel 1450: my $text = &Apache::lonxml::get_all_text("/label",$parser,$style);
1.39 matthew 1451: $result .= &Apache::edit::end_row().
1452: &Apache::edit::start_spanning_row().
1.63 albertel 1453: &Apache::edit::editline('',$text,'',60);
1.20 matthew 1454: } elsif ($target eq 'modified') {
1.42 matthew 1455: &Apache::edit::get_new_args
1.24 matthew 1456: ($token,$parstack,$safeeval,keys(%label_defaults));
1.42 matthew 1457: $result.=&Apache::edit::rebuild_tag($token);
1.93 albertel 1458: $result.=&Apache::edit::modifiedfield("/label",$parser);
1.4 matthew 1459: }
1.1 matthew 1460: return $result;
1461: }
1462:
1463: sub end_label {
1464: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1465: my $result = '';
1.51 matthew 1466: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 1467: } elsif ($target eq 'edit') {
1.21 matthew 1468: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 1469: }
1.1 matthew 1470: return $result;
1471: }
1472:
1473: ##------------------------------------------------------------------- curve
1474: sub start_curve {
1475: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1476: my $result='';
1.25 matthew 1477: &Apache::lonxml::register('Apache::lonplot',('function','data'));
1478: push (@Apache::lonxml::namespace,'curve');
1.51 matthew 1479: if ($target eq 'web' || $target eq 'tex') {
1.17 matthew 1480: my %curve;
1481: &get_attributes(\%curve,\%curve_defaults,$parstack,$safeeval,
1.11 matthew 1482: $tagstack->[-1]);
1.17 matthew 1483: push (@curves,\%curve);
1.20 matthew 1484: } elsif ($target eq 'edit') {
1.184 ! raeburn 1485: &fixup_colors($token);
1.26 matthew 1486: $result .= &Apache::edit::tag_start($target,$token,'Curve');
1.60 matthew 1487: $result .= &edit_attributes($target,$token,\%curve_defaults,
1.116 albertel 1488: \@curve_edit_order)
1489: .&Apache::edit::end_row()
1490: .&Apache::edit::start_spanning_row();
1491:
1.20 matthew 1492: } elsif ($target eq 'modified') {
1493: my $constructtag=&Apache::edit::get_new_args
1.35 matthew 1494: ($token,$parstack,$safeeval,keys(%curve_defaults));
1.184 ! raeburn 1495: my $fixed = &fixup_colors($token);
! 1496: if ($constructtag || $fixed) {
1.20 matthew 1497: $result = &Apache::edit::rebuild_tag($token);
1498: }
1.4 matthew 1499: }
1.1 matthew 1500: return $result;
1501: }
1502:
1503: sub end_curve {
1504: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1505: my $result = '';
1.25 matthew 1506: pop @Apache::lonxml::namespace;
1507: &Apache::lonxml::deregister('Apache::lonplot',('function','data'));
1.51 matthew 1508: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 1509: } elsif ($target eq 'edit') {
1.21 matthew 1510: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 1511: }
1.1 matthew 1512: return $result;
1513: }
1.21 matthew 1514:
1.1 matthew 1515: ##------------------------------------------------------------ curve function
1516: sub start_function {
1517: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1518: my $result='';
1.51 matthew 1519: if ($target eq 'web' || $target eq 'tex') {
1.17 matthew 1520: if (exists($curves[-1]->{'data'})) {
1.85 matthew 1521: &Apache::lonxml::warning
1522: ('Use of the <b>curve function</b> tag precludes use of '.
1523: ' the <b>curve data</b> tag. '.
1524: 'The curve data tag will be omitted in favor of the '.
1525: 'curve function declaration.');
1.17 matthew 1526: delete $curves[-1]->{'data'} ;
1527: }
1.112 albertel 1528: my $function = &Apache::lonxml::get_all_text("/function",$parser,
1529: $style);
1.58 matthew 1530: $function = &Apache::run::evaluate($function,$safeeval,$$parstack[-1]);
1.147 www 1531: $function=~s/\^/\*\*/gs;
1.163 foxr 1532: $function=~ s/^\s+//; # Trim leading
1533: $function=~ s/\s+$//; # And trailing whitespace.
1.58 matthew 1534: $curves[-1]->{'function'} = $function;
1.20 matthew 1535: } elsif ($target eq 'edit') {
1.37 matthew 1536: $result .= &Apache::edit::tag_start($target,$token,'Gnuplot compatible curve function');
1.112 albertel 1537: my $text = &Apache::lonxml::get_all_text("/function",$parser,$style);
1.116 albertel 1538: $result .= &Apache::edit::editline('',$text,'',60);
1.20 matthew 1539: } elsif ($target eq 'modified') {
1.42 matthew 1540: $result.=&Apache::edit::rebuild_tag($token);
1.93 albertel 1541: $result.=&Apache::edit::modifiedfield("/function",$parser);
1.4 matthew 1542: }
1.1 matthew 1543: return $result;
1544: }
1545:
1546: sub end_function {
1547: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1548: my $result = '';
1.51 matthew 1549: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 1550: } elsif ($target eq 'edit') {
1.26 matthew 1551: $result .= &Apache::edit::end_table();
1.4 matthew 1552: }
1.1 matthew 1553: return $result;
1554: }
1.21 matthew 1555:
1.1 matthew 1556: ##------------------------------------------------------------ curve data
1557: sub start_data {
1558: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1559: my $result='';
1.51 matthew 1560: if ($target eq 'web' || $target eq 'tex') {
1.17 matthew 1561: if (exists($curves[-1]->{'function'})) {
1.85 matthew 1562: &Apache::lonxml::warning
1563: ('Use of the <b>curve function</b> tag precludes use of '.
1564: ' the <b>curve data</b> tag. '.
1565: 'The curve function tag will be omitted in favor of the '.
1566: 'curve data declaration.');
1.17 matthew 1567: delete($curves[-1]->{'function'});
1568: }
1.112 albertel 1569: my $datatext = &Apache::lonxml::get_all_text("/data",$parser,$style);
1.58 matthew 1570: $datatext=&Apache::run::evaluate($datatext,$safeeval,$$parstack[-1]);
1.40 matthew 1571: # Deal with cases where we're given an array...
1572: if ($datatext =~ /^\@/) {
1573: $datatext = &Apache::run::run('return "'.$datatext.'"',
1574: $safeeval,1);
1575: }
1.49 matthew 1576: $datatext =~ s/\s+/ /g;
1.17 matthew 1577: # Need to do some error checking on the @data array -
1578: # make sure it's all numbers and make sure each array
1579: # is of the same length.
1580: my @data;
1.35 matthew 1581: if ($datatext =~ /,/) { # comma deliminated
1.17 matthew 1582: @data = split /,/,$datatext;
1.95 www 1583: } else { # Assume it's space separated.
1.17 matthew 1584: @data = split / /,$datatext;
1585: }
1586: for (my $i=0;$i<=$#data;$i++) {
1587: # Check that it's non-empty
1.19 matthew 1588: if (! defined($data[$i])) {
1589: &Apache::lonxml::warning(
1.85 matthew 1590: 'undefined curve data value. Replacing with '.
1.19 matthew 1591: ' pi/e = 1.15572734979092');
1592: $data[$i] = 1.15572734979092;
1593: }
1.17 matthew 1594: # Check that it's a number
1.19 matthew 1595: if (! &$real_test($data[$i]) & ! &$int_test($data[$i])) {
1596: &Apache::lonxml::warning(
1.85 matthew 1597: 'Bad curve data value of '.$data[$i].' Replacing with '.
1.19 matthew 1598: ' pi/e = 1.15572734979092');
1599: $data[$i] = 1.15572734979092;
1600: }
1.17 matthew 1601: }
1.35 matthew 1602: # complain if the number of data points is not the same as
1603: # in previous sets of data.
1.150 raeburn 1604: if (($curves[-1]->{'data'}) && ($#data != $#{$curves[-1]->{'data'}->[0]})){
1.35 matthew 1605: &Apache::lonxml::warning
1606: ('Number of data points is not consistent with previous '.
1607: 'number of data points');
1608: }
1.17 matthew 1609: push @{$curves[-1]->{'data'}},\@data;
1.20 matthew 1610: } elsif ($target eq 'edit') {
1.37 matthew 1611: $result .= &Apache::edit::tag_start($target,$token,'Comma or space deliminated curve data');
1.112 albertel 1612: my $text = &Apache::lonxml::get_all_text("/data",$parser,$style);
1.116 albertel 1613: $result .= &Apache::edit::editline('',$text,'',60);
1.20 matthew 1614: } elsif ($target eq 'modified') {
1.42 matthew 1615: $result.=&Apache::edit::rebuild_tag($token);
1.93 albertel 1616: $result.=&Apache::edit::modifiedfield("/data",$parser);
1.4 matthew 1617: }
1.1 matthew 1618: return $result;
1619: }
1620:
1621: sub end_data {
1622: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1623: my $result = '';
1.51 matthew 1624: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 1625: } elsif ($target eq 'edit') {
1.26 matthew 1626: $result .= &Apache::edit::end_table();
1.4 matthew 1627: }
1.1 matthew 1628: return $result;
1629: }
1630:
1631: ##------------------------------------------------------------------- axis
1632: sub start_axis {
1633: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1634: my $result='';
1.51 matthew 1635: if ($target eq 'web' || $target eq 'tex') {
1.17 matthew 1636: &get_attributes(\%axis,\%axis_defaults,$parstack,$safeeval,
1637: $tagstack->[-1]);
1.20 matthew 1638: } elsif ($target eq 'edit') {
1.184 ! raeburn 1639: &fixup_colors($token);
1.25 matthew 1640: $result .= &Apache::edit::tag_start($target,$token,'Plot Axes');
1.65 matthew 1641: $result .= &edit_attributes($target,$token,\%axis_defaults,
1642: \@axis_edit_order);
1.20 matthew 1643: } elsif ($target eq 'modified') {
1.29 matthew 1644: my $constructtag=&Apache::edit::get_new_args
1645: ($token,$parstack,$safeeval,keys(%axis_defaults));
1.184 ! raeburn 1646: my $fixed = &fixup_colors($token);
! 1647: if ($constructtag || $fixed) {
1.29 matthew 1648: $result = &Apache::edit::rebuild_tag($token);
1649: }
1.4 matthew 1650: }
1.1 matthew 1651: return $result;
1652: }
1653:
1654: sub end_axis {
1655: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1656: my $result = '';
1.51 matthew 1657: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 1658: } elsif ($target eq 'edit') {
1.21 matthew 1659: $result.=&Apache::edit::tag_end($target,$token);
1.20 matthew 1660: } elsif ($target eq 'modified') {
1.4 matthew 1661: }
1.1 matthew 1662: return $result;
1663: }
1664:
1.21 matthew 1665: ###################################################################
1666: ## ##
1667: ## Utility Functions ##
1668: ## ##
1669: ###################################################################
1670:
1.13 matthew 1671: ##----------------------------------------------------------- set_defaults
1672: sub set_defaults {
1.21 matthew 1673: my ($var,$defaults) = @_;
1.13 matthew 1674: my $key;
1.24 matthew 1675: foreach $key (keys(%$defaults)) {
1.13 matthew 1676: $var->{$key} = $defaults->{$key}->{'default'};
1677: }
1678: }
1679:
1.1 matthew 1680: ##------------------------------------------------------------------- misc
1.2 matthew 1681: sub get_attributes{
1.21 matthew 1682: my ($values,$defaults,$parstack,$safeeval,$tag) = @_;
1.24 matthew 1683: foreach my $attr (keys(%{$defaults})) {
1.92 matthew 1684: if ($attr eq 'texwidth' || $attr eq 'texfont') {
1.86 albertel 1685: $values->{$attr} =
1686: &Apache::lonxml::get_param($attr,$parstack,$safeeval,undef,1);
1687: } else {
1688: $values->{$attr} =
1689: &Apache::lonxml::get_param($attr,$parstack,$safeeval);
1690: }
1.10 matthew 1691: if ($values->{$attr} eq '' | !defined($values->{$attr})) {
1.11 matthew 1692: $values->{$attr} = $defaults->{$attr}->{'default'};
1.6 matthew 1693: next;
1694: }
1.10 matthew 1695: my $test = $defaults->{$attr}->{'test'};
1696: if (! &$test($values->{$attr})) {
1.184 ! raeburn 1697: my $warning = &mt('Replacing your value with: [_1].',
! 1698: $defaults->{$attr}->{'default'});
! 1699: my $missingprefix;
! 1700: if (($env{'form.problemmode'} eq 'editxml') ||
! 1701: ($env{'form.problemmode'} eq 'edit')) {
! 1702: $warning = &mt('On display your value will be replaced with: [_1].',
! 1703: $defaults->{$attr}->{'default'});
! 1704: if (($env{'form.problemmode'} eq 'edit') &&
! 1705: ($attr =~ /^(|fg|bg)color$/) && ($values->{$attr} =~ /^[\da-fA-F]{6}$/)) {
! 1706: $missingprefix = 1;
! 1707: $warning = &mt('The current value is missing the prefix: [_1].',
! 1708: $colorprefix).' '.
! 1709: &mt('As the color picker entry adds the prefix, saving will fix this issue.');
! 1710: }
! 1711: }
! 1712: unless ($missingprefix) {
! 1713: $values->{$attr} = $defaults->{$attr}->{'default'};
! 1714: }
1.6 matthew 1715: &Apache::lonxml::warning
1.184 ! raeburn 1716: ($tag.':'.$attr.': '.&mt('Bad value').'. '.$warning);
1.10 matthew 1717: }
1.2 matthew 1718: }
1.11 matthew 1719: return ;
1.6 matthew 1720: }
1.162 foxr 1721: ##
1722: # Generate tic mark specifications.
1723: #
1724: # @param type - type of tics (xtics or ytics).
1725: # @param spec - Reference to a hash that contains the tic specification.
1726: # @param target - 'tex' if hard copy target.
1727: #
1728: # @return string - the tic specification command.
1729: #
1730: sub generate_tics {
1731: my ($type, $spec, $target) = @_;
1732: my $result = '';
1733:
1734:
1.173 raeburn 1735: if ((ref($spec) eq 'HASH') && (keys(%{$spec}) > 0)) {
1.162 foxr 1736:
1.163 foxr 1737:
1.162 foxr 1738:
1.163 foxr 1739: # Major tics: - If there are 'ticspecs' these override any other
1740: # specifications:
1.162 foxr 1741:
1.163 foxr 1742:
1743:
1.162 foxr 1744: $result .= "set $type $spec->{'location'} ";
1745: $result .= ($spec->{'mirror'} eq 'on') ? 'mirror ' : 'nomirror ';
1.164 foxr 1746: if ($spec->{'rotate'} eq 'on') {
1747: $result .= ' rotate ';
1748: }
1.163 foxr 1749: if (defined $spec->{'ticspecs'}) {
1750: $result .= '( ';
1751: my @ticspecs;
1752: my $ticinfo = $spec->{'ticspecs'};
1753: foreach my $tic (@$ticinfo) {
1754: push(@ticspecs, '"' . $tic->{'label'} . '" ' . $tic->{'pos'} );
1755: }
1756: $result .= join(', ', (@ticspecs));
1757: $result .= ' )';
1758: } else {
1759: $result .= "$spec->{'start'}, ";
1760: $result .= "$spec->{'increment'}, ";
1761: $result .= "$spec->{'end'} ";
1762: }
1.162 foxr 1763: if ($target eq 'tex' ) {
1764: $result .= 'font "Helvetica,22"';
1765: }
1766: $result .= "\n";
1.163 foxr 1767:
1.162 foxr 1768: # minor frequency:
1.163 foxr 1769:
1.162 foxr 1770: if ($spec->{'minorfreq'} != 0) {
1771: $result .= "set m$type $spec->{'minorfreq'}\n";
1772: }
1.171 raeburn 1773: } elsif ($target eq 'tex' ) {
1.162 foxr 1774: $result .= "set $type font " . '"Helvetica,22"' ."\n";
1775: }
1.163 foxr 1776:
1777:
1.162 foxr 1778: return $result;
1779: }
1.40 matthew 1780:
1.15 matthew 1781: ##------------------------------------------------------- write_gnuplot_file
1.6 matthew 1782: sub write_gnuplot_file {
1.51 matthew 1783: my ($tmpdir,$filename,$target)= @_;
1.124 albertel 1784: my ($fontsize, $font_properties) = &get_font($target);
1.6 matthew 1785: my $gnuplot_input = '';
1.10 matthew 1786: my $curve;
1.100 matthew 1787: #
1788: # Check to be sure we do not have any empty curves
1789: my @curvescopy;
1790: foreach my $curve (@curves) {
1791: if (exists($curve->{'function'})) {
1792: if ($curve->{'function'} !~ /^\s*$/) {
1793: push(@curvescopy,$curve);
1794: }
1795: } elsif (exists($curve->{'data'})) {
1796: foreach my $data (@{$curve->{'data'}}) {
1797: if (scalar(@$data) > 0) {
1798: push(@curvescopy,$curve);
1799: last;
1800: }
1801: }
1802: }
1803: }
1804: @curves = @curvescopy;
1.6 matthew 1805: # Collect all the colors
1806: my @Colors;
1.184 ! raeburn 1807: if ($version < 4.6) {
! 1808: push(@Colors,$Apache::lonplot::plot{'bgcolor'});
! 1809: push(@Colors,$Apache::lonplot::plot{'fgcolor'});
! 1810: push(@Colors,(defined($axis{'color'})?$axis{'color'}:$Apache::lonplot::plot{'fgcolor'}));
! 1811: foreach $curve (@curves) {
! 1812: push(@Colors,($curve->{'color'} ne '' ?
! 1813: $curve->{'color'} :
! 1814: $Apache::lonplot::plot{'fgcolor'}));
! 1815: }
1.6 matthew 1816: }
1.155 foxr 1817:
1.6 matthew 1818: # set term
1.51 matthew 1819: if ($target eq 'web') {
1.120 albertel 1820: $gnuplot_input .= 'set terminal png enhanced nocrop ';
1.107 foxr 1821: $gnuplot_input .= 'transparent ' if ($Apache::lonplot::plot{'transparent'} eq 'on');
1.120 albertel 1822: $gnuplot_input .= 'font "'.$Apache::lonnet::perlvar{'lonFontsDir'}.
1823: '/'.$font_properties->{'file'}.'.ttf" ';
1824: $gnuplot_input .= $fontsize;
1825: $gnuplot_input .= ' size '.$Apache::lonplot::plot{'width'}.','.$Apache::lonplot::plot{'height'}.' ';
1.184 ! raeburn 1826: if ($version >= 4.6) {
1.182 raeburn 1827: if ($Apache::lonplot::plot{'bgcolor'}) {
1828: $gnuplot_input .= "background '$Apache::lonplot::plot{'bgcolor'}'\n";
1829: }
1830: } else {
1831: $gnuplot_input .= "@Colors\n";
1832: }
1.51 matthew 1833: # set output
1834: $gnuplot_input .= "set output\n";
1835: } elsif ($target eq 'tex') {
1.156 foxr 1836: $gnuplot_input .= "set term postscript eps enhanced $Apache::lonplot::plot{'plotcolor'} dash ";
1.121 albertel 1837: if (!$font_properties->{'tex_no_file'}) {
1838: $gnuplot_input .=
1839: 'fontfile "'.$Apache::lonnet::perlvar{'lonFontsDir'}.
1840: '/'.$font_properties->{'file'}.'.pfb" ';
1841: }
1.184 ! raeburn 1842: if (($version >= 4.6) && ($Apache::lonplot::plot{'plotcolor'} =~ /^colou?r$/) &&
! 1843: ($Apache::lonplot::plot{'bgcolor'} ne '')) {
! 1844: $gnuplot_input .= "background '$Apache::lonplot::plot{'bgcolor'}' ";
! 1845: }
1.120 albertel 1846: $gnuplot_input .= ' "'.$font_properties->{'printname'}.'" ';
1847: $gnuplot_input .= $fontsize;
1.153 foxr 1848: $gnuplot_input .= "\nset output \"".$tmpdir.
1.113 www 1849: &unescape($filename).".eps\"\n";
1.143 foxr 1850: $gnuplot_input .= "set encoding iso_8859_1\n"; # Get access to extended font.
1851:
1.87 matthew 1852: }
1.159 foxr 1853: $gnuplot_input .= "set encoding utf8\n";
1.115 albertel 1854: # cartesian or polar plot?
1.107 foxr 1855: if (lc($Apache::lonplot::plot{'plottype'}) eq 'polar') {
1.87 matthew 1856: $gnuplot_input .= 'set polar'.$/;
1857: } else {
1858: # Assume Cartesian
1.51 matthew 1859: }
1.115 albertel 1860: # cartesian or polar grid?
1861: if (lc($Apache::lonplot::plot{'gridtype'}) eq 'polar') {
1862: $gnuplot_input .= 'set grid polar'.$/;
1.118 albertel 1863: } elsif (lc($Apache::lonplot::plot{'gridtype'}) eq 'linear-log') {
1864: $gnuplot_input .= 'set logscale x'.$/;
1865: } elsif (lc($Apache::lonplot::plot{'gridtype'}) eq 'log-linear') {
1866: $gnuplot_input .= 'set logscale y'.$/;
1867: } elsif (lc($Apache::lonplot::plot{'gridtype'}) eq 'log-log') {
1868: $gnuplot_input .= 'set logscale x'.$/;
1869: $gnuplot_input .= 'set logscale y'.$/;
1.115 albertel 1870: } else {
1871: # Assume Cartesian
1872: }
1.110 albertel 1873: # solid or pattern for boxes?
1874: if (lc($Apache::lonplot::plot{'fillstyle'}) eq 'solid') {
1875: $gnuplot_input .= 'set style fill solid '.
1876: $Apache::lonplot::plot{'solid'}.$Apache::lonplot::plot{'box_border'}.$/;
1877: } elsif (lc($Apache::lonplot::plot{'fillstyle'}) eq 'pattern') {
1878: $gnuplot_input .= 'set style fill pattern '.$Apache::lonplot::plot{'pattern'}.$Apache::lonplot::plot{'box_border'}.$/;
1879: } elsif (lc($Apache::lonplot::plot{'fillstyle'}) eq 'empty') {
1880: }
1.101 matthew 1881: # margin
1.107 foxr 1882: if (lc($Apache::lonplot::plot{'lmargin'}) ne 'default') {
1883: $gnuplot_input .= 'set lmargin '.$Apache::lonplot::plot{'lmargin'}.$/;
1.101 matthew 1884: }
1.107 foxr 1885: if (lc($Apache::lonplot::plot{'rmargin'}) ne 'default') {
1886: $gnuplot_input .= 'set rmargin '.$Apache::lonplot::plot{'rmargin'}.$/;
1.101 matthew 1887: }
1.107 foxr 1888: if (lc($Apache::lonplot::plot{'tmargin'}) ne 'default') {
1889: $gnuplot_input .= 'set tmargin '.$Apache::lonplot::plot{'tmargin'}.$/;
1.101 matthew 1890: }
1.107 foxr 1891: if (lc($Apache::lonplot::plot{'bmargin'}) ne 'default') {
1892: $gnuplot_input .= 'set bmargin '.$Apache::lonplot::plot{'bmargin'}.$/;
1.101 matthew 1893: }
1.129 albertel 1894:
1.101 matthew 1895: # tic scales
1.129 albertel 1896: if ($version > 4) {
1897: $gnuplot_input .= 'set tics scale '.
1898: $Apache::lonplot::plot{'major_ticscale'}.', '.$Apache::lonplot::plot{'minor_ticscale'}.$/;
1899: } else {
1900: $gnuplot_input .= 'set ticscale '.
1901: $Apache::lonplot::plot{'major_ticscale'}.' '.$Apache::lonplot::plot{'minor_ticscale'}.$/;
1902: }
1.110 albertel 1903: #boxwidth
1904: if (lc($Apache::lonplot::plot{'boxwidth'}) ne '') {
1905: $gnuplot_input .= 'set boxwidth '.$Apache::lonplot::plot{'boxwidth'}.$/;
1906: }
1907: # gridlayer
1908: $gnuplot_input .= 'set grid noxtics noytics front '.$/
1909: if ($Apache::lonplot::plot{'gridlayer'} eq 'on');
1910:
1.7 matthew 1911: # grid
1.184 ! raeburn 1912: if ($Apache::lonplot::plot{'grid'} eq 'on') {
! 1913: if (($version >= 4.6) && (($axis{'color'} ne '') || ($Apache::lonplot::plot{'fgcolor'} ne ''))) {
! 1914: if (($target eq 'web') || (($target eq 'tex') &&
! 1915: ($Apache::lonplot::plot{'plotcolor'} =~ /^colou?r$/))) {
! 1916: $gnuplot_input .= 'set grid linecolor rgb "'.
! 1917: (($axis{'color'} ne '')?$axis{'color'}:
! 1918: $Apache::lonplot::plot{'fgcolor'}).
! 1919: '" '.$/;
! 1920:
! 1921: } else {
! 1922: $gnuplot_input .= 'set grid'.$/;
! 1923: }
! 1924: } else {
! 1925: $gnuplot_input .= 'set grid'.$/;
! 1926: }
! 1927: }
1.7 matthew 1928: # border
1.182 raeburn 1929: if ($Apache::lonplot::plot{'border'} eq 'on') {
1.184 ! raeburn 1930: if (($version >= 4.6) && ($Apache::lonplot::plot{'fgcolor'} ne '')) {
! 1931: if (($target eq 'web') || (($target eq 'tex') &&
! 1932: ($Apache::lonplot::plot{'plotcolor'} =~ /^colou?r$/))) {
! 1933: $gnuplot_input .= 'set border linecolor rgb "'.
! 1934: $Apache::lonplot::plot{'fgcolor'}.'" '.$/;
! 1935: } else {
! 1936: $gnuplot_input .= 'set border '.$/;
! 1937: }
1.182 raeburn 1938: } else {
1939: $gnuplot_input .= 'set border '.$/;
1940: }
1941: } else {
1942: $gnuplot_input .= 'set noborder '.$/;
1943: }
1.77 matthew 1944: # sampling rate for non-data curves
1.107 foxr 1945: $gnuplot_input .= "set samples $Apache::lonplot::plot{'samples'}\n";
1.67 matthew 1946: # title, xlabel, ylabel
1.45 matthew 1947: # titles
1.169 raeburn 1948: my $extra_space_x = ($xtics{'location'} eq 'axis') ? ' offset 0, -0.5 ' : '';
1949: my $extra_space_y = ($ytics{'location'} eq 'axis') ? ' offset -0.5, 0 ' : '';
1.125 albertel 1950:
1.89 matthew 1951: if ($target eq 'tex') {
1.125 albertel 1952: $gnuplot_input .= "set title \"$title\" font \"".$font_properties->{'printname'}.",".$fontsize."pt\"\n" if (defined($title)) ;
1953: $gnuplot_input .= "set xlabel \"$xlabel\" $extra_space_x font \"".$font_properties->{'printname'}.",".$fontsize."pt\"\n" if (defined($xlabel));
1954: $gnuplot_input .= "set ylabel \"$ylabel\" $extra_space_y font \"".$font_properties->{'printname'}.",".$fontsize."pt\"\n" if (defined($ylabel));
1.89 matthew 1955: } else {
1.125 albertel 1956: $gnuplot_input .= "set title \"$title\" \n" if (defined($title)) ;
1957: $gnuplot_input .= "set xlabel \"$xlabel\" $extra_space_x \n" if (defined($xlabel));
1958: $gnuplot_input .= "set ylabel \"$ylabel\" $extra_space_y \n" if (defined($ylabel));
1.89 matthew 1959: }
1.45 matthew 1960: # tics
1.162 foxr 1961: $gnuplot_input .= &generate_tics('xtics', \%xtics, $target);
1962:
1963: $gnuplot_input .= &generate_tics('ytics', \%ytics, $target);
1964:
1.45 matthew 1965: # axis
1.23 matthew 1966: if (%axis) {
1.132 albertel 1967: if ($axis{'xformat'} ne 'on') {
1968: $gnuplot_input .= "set format x ";
1969: if ($axis{'xformat'} eq 'off') {
1970: $gnuplot_input .= "\"\"\n";
1971: } else {
1.183 raeburn 1972: if ($axis{'xformat'} =~ /^(\d+P\s*)[Pp][Ii]/) {
1973: my $xprefix = $1;
1974: if (($target eq 'web') || ($target eq 'tex')) {
1975: $axis{'xformat'} = $xprefix.$lookup{'(pi|#960)'}{$target};
1976: } else {
1977: $axis{'xformat'} = $xprefix;
1978: }
1979: }
1.132 albertel 1980: $gnuplot_input .= "\"\%.".$axis{'xformat'}."\"\n";
1981: }
1982: }
1983: if ($axis{'yformat'} ne 'on') {
1984: $gnuplot_input .= "set format y ";
1985: if ($axis{'yformat'} eq 'off') {
1986: $gnuplot_input .= "\"\"\n";
1987: } else {
1.183 raeburn 1988: if ($axis{'yformat'} =~ /^(\d+P\s*)[Pp][Ii]/) {
1989: my $yprefix = $1;
1990: if (($target eq 'web') || ($target eq 'tex')) {
1991: $axis{'yformat'} = $yprefix.$lookup{'(pi|#960)'}{$target};
1992: } else {
1993: $axis{'yformat'} = $yprefix;
1994: }
1995: }
1.132 albertel 1996: $gnuplot_input .= "\"\%.".$axis{'yformat'}."\"\n";
1997: }
1998: }
1.13 matthew 1999: $gnuplot_input .= "set xrange \[$axis{'xmin'}:$axis{'xmax'}\]\n";
2000: $gnuplot_input .= "set yrange \[$axis{'ymin'}:$axis{'ymax'}\]\n";
1.152 faziophi 2001: if ($axis{'xzero'} ne 'off') {
2002: $gnuplot_input .= "set xzeroaxis ";
2003: if ($axis{'xzero'} eq 'line' || $axis{'xzero'} eq 'thick-line') {
2004: $gnuplot_input .= "lt -1 ";
2005: if ($axis{'xzero'} eq 'thick-line') {
2006: $gnuplot_input .= "lw 3 ";
2007: }
2008: }
2009: $gnuplot_input .= "\n";
2010: }
2011: if ($axis{'yzero'} ne 'off') {
2012: $gnuplot_input .= "set yzeroaxis ";
2013: if ($axis{'yzero'} eq 'line' || $axis{'yzero'} eq 'thick-line') {
2014: $gnuplot_input .= "lt -1 ";
2015: if ($axis{'yzero'} eq 'thick-line') {
2016: $gnuplot_input .= "lw 3 ";
2017: }
2018: }
2019: $gnuplot_input .= "\n";
2020: }
1.6 matthew 2021: }
2022: # Key
1.23 matthew 2023: if (%key) {
1.9 matthew 2024: $gnuplot_input .= 'set key '.$key{'pos'}.' ';
2025: if ($key{'title'} ne '') {
1.67 matthew 2026: $gnuplot_input .= 'title "'.$key{'title'}.'" ';
1.11 matthew 2027: }
2028: $gnuplot_input .= ($key{'box'} eq 'on' ? 'box ' : 'nobox ').$/;
1.6 matthew 2029: } else {
1.9 matthew 2030: $gnuplot_input .= 'set nokey'.$/;
1.13 matthew 2031: }
1.6 matthew 2032: # labels
1.10 matthew 2033: my $label;
1.6 matthew 2034: foreach $label (@labels) {
2035: $gnuplot_input .= 'set label "'.$label->{'text'}.'" at '.
1.134 raeburn 2036: $label->{'xpos'}.','.$label->{'ypos'};
2037: if ($label->{'rotate'} ne '') {
2038: $gnuplot_input .= ' rotate by '.$label->{'rotate'};
2039: }
2040: $gnuplot_input .= ' '.$label->{'justify'};
2041:
1.103 matthew 2042: if ($target eq 'tex') {
1.175 raeburn 2043: $gnuplot_input .=' font "'.$font_properties->{'printname'}.','.$fontsize.'pt"';
2044: }
2045: if (($label->{'zlayer'} eq 'front') || ($label->{'zlayer'} eq 'back')) {
2046: $gnuplot_input .= ' '.$label->{'zlayer'};
1.103 matthew 2047: }
2048: $gnuplot_input .= $/;
1.6 matthew 2049: }
1.74 matthew 2050: if ($target eq 'tex') {
1.107 foxr 2051: $gnuplot_input .="set size 1,".$Apache::lonplot::plot{'height'}/$Apache::lonplot::plot{'width'}*1.38;
1.74 matthew 2052: $gnuplot_input .="\n";
1.120 albertel 2053: }
1.6 matthew 2054: # curves
1.156 foxr 2055: #
2056: # Each curve will have its very own linestyle.
2057: # (This should work just fine in web rendition I think).
2058: # The line_xxx variables will hold the elements of the line style.
2059: # type (solid/dashed), color, width
2060: #
2061: my $linestyle_index = 50;
2062: my $line_width = '';
1.172 raeburn 2063: my $plots = '';
1.156 foxr 2064:
1.160 foxr 2065: # If arrows are needed there will be an arrow style for each as well:
2066: #
2067:
2068: my $arrow_style_index = 50;
2069:
1.9 matthew 2070: for (my $i = 0;$i<=$#curves;$i++) {
2071: $curve = $curves[$i];
1.172 raeburn 2072: my $plot_command = '';
2073: my $plot_type = '';
2074: if ($i > 0) {
2075: $plot_type = ', ';
2076: }
1.119 albertel 2077: if ($target eq 'tex') {
2078: $curve->{'linewidth'} *= 2;
2079: }
1.157 foxr 2080: $line_width = $curve->{'linewidth'};
1.6 matthew 2081: if (exists($curve->{'function'})) {
1.170 raeburn 2082: $plot_type .=
1.9 matthew 2083: $curve->{'function'}.' title "'.
2084: $curve->{'name'}.'" with '.
1.72 matthew 2085: $curve->{'linestyle'};
1.6 matthew 2086: } elsif (exists($curve->{'data'})) {
1.40 matthew 2087: # Store data values in $datatext
2088: my $datatext = '';
2089: # get new filename
1.70 matthew 2090: my $datafilename = "$tmpdir/$filename.data.$i";
1.40 matthew 2091: my $fh=Apache::File->new(">$datafilename");
2092: # Compile data
1.6 matthew 2093: my @Data = @{$curve->{'data'}};
1.9 matthew 2094: my @Data0 = @{$Data[0]};
2095: for (my $i =0; $i<=$#Data0; $i++) {
1.10 matthew 2096: my $dataset;
1.6 matthew 2097: foreach $dataset (@Data) {
1.9 matthew 2098: $datatext .= $dataset->[$i] . ' ';
1.6 matthew 2099: }
1.9 matthew 2100: $datatext .= $/;
1.6 matthew 2101: }
1.40 matthew 2102: # write file
2103: print $fh $datatext;
1.119 albertel 2104: close($fh);
1.40 matthew 2105: # generate gnuplot text
1.170 raeburn 2106: $plot_type .= '"'.$datafilename.'" title "'.
1.40 matthew 2107: $curve->{'name'}.'" with '.
2108: $curve->{'linestyle'};
1.6 matthew 2109: }
1.157 foxr 2110: my $pointtype = '';
2111: my $pointsize = '';
2112:
1.160 foxr 2113: # Figure out the linestyle:
2114:
2115: my $lt = $curve->{'linetype'} ne '' ? $curve->{'linetype'}
2116: : 'solid'; # Line type defaults to solid.
2117: # The mapping of lt -> the actual gnuplot line type depends on the target:
2118:
2119: if ($target eq 'tex') {
2120: $lt = $ps_linetypes{$lt};
2121: } else {
2122: $lt = $linetypes{$lt}
2123: }
2124:
2125: my $color = $curve->{'color'};
2126: $color =~ s/^x/#/; # Convert xhex color -> #hex color.
2127:
2128:
1.156 foxr 2129: if (($curve->{'linestyle'} eq 'points') ||
2130: ($curve->{'linestyle'} eq 'linespoints') ||
2131: ($curve->{'linestyle'} eq 'errorbars') ||
2132: ($curve->{'linestyle'} eq 'xerrorbars') ||
2133: ($curve->{'linestyle'} eq 'yerrorbars') ||
2134: ($curve->{'linestyle'} eq 'xyerrorbars')) {
1.157 foxr 2135:
2136: $pointtype =' pointtype '.$curve->{'pointtype'};
2137: $pointsize =' pointsize '.$curve->{'pointsize'};
1.156 foxr 2138: } elsif ($curve->{'linestyle'} eq 'filledcurves') {
2139: $plot_command.= ' '.$curve->{'limit'};
1.160 foxr 2140: } elsif ($curve->{'linestyle'} eq 'vector') {
1.157 foxr 2141:
1.160 foxr 2142: # Create the arrow head style add it to
2143: # $gnuplot_input..and ensure it gets
2144: # Selected in the plot command.
1.157 foxr 2145:
1.160 foxr 2146: $gnuplot_input .= "set style arrow $arrow_style_index ";
2147: $gnuplot_input .= ' ' . $curve->{'arrowhead'};
2148: $gnuplot_input .= ' size ' . $curve->{'arrowlength'};
2149: $gnuplot_input .= ','.$curve->{'arrowangle'};
2150: $gnuplot_input .= ',' . $curve->{'arrowbackangle'};
2151: $gnuplot_input .= ' ' . $curve->{'arrowstyle'} . " ls $linestyle_index\n";
1.157 foxr 2152:
2153:
1.160 foxr 2154: $plot_command .= " arrowstyle $arrow_style_index ";
2155: $arrow_style_index++;
1.156 foxr 2156: }
1.157 foxr 2157:
1.170 raeburn 2158: my $style_command = "set style line $linestyle_index $pointtype $pointsize linetype $lt linewidth $line_width lc rgb '$color'\n";
2159: $gnuplot_input .= $style_command;
1.160 foxr 2160:
2161: # The condition below is because gnuplot lumps the linestyle in with the
2162: # arrowstyle _sigh_.
2163:
2164: if ($curve->{'linestyle'} ne 'vector') {
2165: $plot_command.= " ls $linestyle_index";
2166: }
2167:
1.170 raeburn 2168: $plots .= $plot_type . ' ' . $plot_command;
1.157 foxr 2169: $linestyle_index++; # Each curve get a unique linestyle.
1.6 matthew 2170: }
1.170 raeburn 2171: $gnuplot_input .= 'plot '.$plots;
1.40 matthew 2172: # Write the output to a file.
1.164 foxr 2173:
1.165 foxr 2174: # &Apache::lonnet::logthis($gnuplot_input); # uncomment to log the gnuplot input.
1.161 foxr 2175: open (my $fh, "> $tmpdir$filename.data");
2176: binmode($fh, ':utf8');
1.40 matthew 2177: print $fh $gnuplot_input;
2178: close($fh);
2179: # That's all folks.
2180: return ;
1.2 matthew 2181: }
1.21 matthew 2182:
2183: #---------------------------------------------- check_inputs
2184: sub check_inputs {
2185: ## Note: no inputs, no outputs - this acts only on global variables.
2186: ## Make sure we have all the input we need:
1.107 foxr 2187: if (! %Apache::lonplot::plot) { &set_defaults(\%Apache::lonplot::plot,\%gnuplot_defaults); }
1.23 matthew 2188: if (! %key ) {} # No key for this plot, thats okay
1.34 matthew 2189: # if (! %axis) { &set_defaults(\%axis,\%axis_defaults); }
1.21 matthew 2190: if (! defined($title )) {} # No title for this plot, thats okay
2191: if (! defined($xlabel)) {} # No xlabel for this plot, thats okay
2192: if (! defined($ylabel)) {} # No ylabel for this plot, thats okay
2193: if ($#labels < 0) { } # No labels for this plot, thats okay
2194: if ($#curves < 0) {
2195: &Apache::lonxml::warning("No curves specified for plot!!!!");
2196: return '';
2197: }
2198: my $curve;
2199: foreach $curve (@curves) {
2200: if (!defined($curve->{'function'})&&!defined($curve->{'data'})){
1.85 matthew 2201: &Apache::lonxml::warning("One of the curves specified did not contain any curve data or curve function declarations\n");
1.21 matthew 2202: return '';
2203: }
2204: }
2205: }
2206:
1.184 ! raeburn 2207: #------------------------------------------ edit_attributes
1.20 matthew 2208: sub edit_attributes {
1.34 matthew 2209: my ($target,$token,$defaults,$keys) = @_;
2210: my ($result,@keys);
2211: if ($keys && ref($keys) eq 'ARRAY') {
2212: @keys = @$keys;
2213: } else {
2214: @keys = sort(keys(%$defaults));
2215: }
2216: foreach my $attr (@keys) {
1.35 matthew 2217: # append a ' ' to the description if it doesn't have one already.
2218: my $description = $defaults->{$attr}->{'description'};
2219: $description .= ' ' if ($description !~ / $/);
1.20 matthew 2220: if ($defaults->{$attr}->{'edit_type'} eq 'entry') {
1.35 matthew 2221: $result .= &Apache::edit::text_arg
1.38 matthew 2222: ($description,$attr,$token,
1.154 foxr 2223: $defaults->{$attr}->{'size'},
2224: $defaults->{$attr}->{'class'});
1.20 matthew 2225: } elsif ($defaults->{$attr}->{'edit_type'} eq 'choice') {
1.102 albertel 2226: $result .= &Apache::edit::select_or_text_arg
1.35 matthew 2227: ($description,$attr,$defaults->{$attr}->{'choices'},$token);
1.45 matthew 2228: } elsif ($defaults->{$attr}->{'edit_type'} eq 'onoff') {
1.102 albertel 2229: $result .= &Apache::edit::select_or_text_arg
1.35 matthew 2230: ($description,$attr,['on','off'],$token);
1.20 matthew 2231: }
1.25 matthew 2232: $result .= '<br />';
1.20 matthew 2233: }
2234: return $result;
2235: }
1.1 matthew 2236:
1.184 ! raeburn 2237: #------------------------------------------ fixup_colors
! 2238:
! 2239: sub fixup_colors {
! 2240: my ($token,$attribref) = @_;
! 2241: my @attributes;
! 2242: if (ref($attribref) eq 'ARRAY') {
! 2243: @attributes = @{$attribref};
! 2244: } else {
! 2245: @attributes = ('color');
! 2246: }
! 2247:
! 2248: #
! 2249: # Fix up the color attribute since jchooser does not
! 2250: # prepend an x (or #) to the color:
! 2251: #
! 2252: my $had_changes;
! 2253: if ((ref($token) eq 'ARRAY') && (ref($token->[2]) eq 'HASH')) {
! 2254: foreach my $attribute (@attributes) {
! 2255: if ($attribute =~ /^(|bg|fg)color$/) {
! 2256: my $value = $token->[2]{$attribute};
! 2257: if (defined($value)) {
! 2258: if ($version < 4.6) {
! 2259: $value=~s/^\#/x/;
! 2260: } else {
! 2261: $value=~s/^x/#/;
! 2262: }
! 2263: if ($value ne $token->[2]{$attribute}) {
! 2264: $token->[2]{$attribute} = $value;
! 2265: $had_changes = 1;
! 2266: }
! 2267: if ($value !~ /^\Q$colorprefix\E/) {
! 2268: $token->[2]{$attribute} = $colorprefix . $value;
! 2269: $had_changes = 1;
! 2270: }
! 2271: }
! 2272: }
! 2273: }
! 2274: }
! 2275: return $had_changes;
! 2276: }
1.21 matthew 2277:
2278: ###################################################################
2279: ## ##
2280: ## Insertion functions for editing plots ##
2281: ## ##
2282: ###################################################################
2283:
1.47 matthew 2284: sub insert_gnuplot {
1.29 matthew 2285: my $result = '';
1.20 matthew 2286: # plot attributes
1.61 matthew 2287: $result .= "\n<gnuplot ";
1.47 matthew 2288: foreach my $attr (keys(%gnuplot_defaults)) {
1.61 matthew 2289: $result .= "\n $attr=\"$gnuplot_defaults{$attr}->{'default'}\"";
1.20 matthew 2290: }
1.61 matthew 2291: $result .= ">";
1.47 matthew 2292: # Add the components (most are commented out for simplicity)
1.44 matthew 2293: # $result .= &insert_key();
2294: # $result .= &insert_axis();
2295: # $result .= &insert_title();
2296: # $result .= &insert_xlabel();
2297: # $result .= &insert_ylabel();
1.20 matthew 2298: $result .= &insert_curve();
1.50 matthew 2299: # close up the <gnuplot>
1.61 matthew 2300: $result .= "\n</gnuplot>";
1.45 matthew 2301: return $result;
2302: }
2303:
1.46 matthew 2304: sub insert_tics {
2305: my $result;
2306: $result .= &insert_xtics() . &insert_ytics;
2307: return $result;
2308: }
2309:
1.45 matthew 2310: sub insert_xtics {
2311: my $result;
1.46 matthew 2312: $result .= "\n <xtics ";
1.45 matthew 2313: foreach my $attr (keys(%tic_defaults)) {
1.61 matthew 2314: $result .= "\n $attr=\"$tic_defaults{$attr}->{'default'}\" ";
1.45 matthew 2315: }
1.61 matthew 2316: $result .= "/>";
1.45 matthew 2317: return $result;
2318: }
2319:
2320: sub insert_ytics {
2321: my $result;
1.46 matthew 2322: $result .= "\n <ytics ";
1.45 matthew 2323: foreach my $attr (keys(%tic_defaults)) {
1.61 matthew 2324: $result .= "\n $attr=\"$tic_defaults{$attr}->{'default'}\" ";
1.45 matthew 2325: }
1.61 matthew 2326: $result .= "/>";
1.20 matthew 2327: return $result;
2328: }
2329:
2330: sub insert_key {
2331: my $result;
1.61 matthew 2332: $result .= "\n <key ";
1.30 matthew 2333: foreach my $attr (keys(%key_defaults)) {
1.61 matthew 2334: $result .= "\n $attr=\"$key_defaults{$attr}->{'default'}\"";
1.20 matthew 2335: }
1.61 matthew 2336: $result .= " />";
1.20 matthew 2337: return $result;
2338: }
2339:
2340: sub insert_axis{
2341: my $result;
1.46 matthew 2342: $result .= "\n <axis ";
1.30 matthew 2343: foreach my $attr (keys(%axis_defaults)) {
1.61 matthew 2344: $result .= "\n $attr=\"$axis_defaults{$attr}->{'default'}\"";
1.20 matthew 2345: }
1.61 matthew 2346: $result .= " />";
1.20 matthew 2347: return $result;
2348: }
1.28 matthew 2349:
1.61 matthew 2350: sub insert_title { return "\n <title></title>"; }
2351: sub insert_xlabel { return "\n <xlabel></xlabel>"; }
2352: sub insert_ylabel { return "\n <ylabel></ylabel>"; }
1.20 matthew 2353:
2354: sub insert_label {
2355: my $result;
1.46 matthew 2356: $result .= "\n <label ";
1.30 matthew 2357: foreach my $attr (keys(%label_defaults)) {
1.61 matthew 2358: $result .= "\n $attr=\"".
2359: $label_defaults{$attr}->{'default'}."\"";
1.20 matthew 2360: }
1.61 matthew 2361: $result .= "></label>";
1.20 matthew 2362: return $result;
2363: }
2364:
2365: sub insert_curve {
2366: my $result;
1.41 matthew 2367: $result .= "\n <curve ";
1.30 matthew 2368: foreach my $attr (keys(%curve_defaults)) {
1.61 matthew 2369: $result .= "\n $attr=\"".
2370: $curve_defaults{$attr}->{'default'}."\"";
1.20 matthew 2371: }
1.61 matthew 2372: $result .= " >";
2373: $result .= &insert_data().&insert_data()."\n </curve>";
1.20 matthew 2374: }
1.4 matthew 2375:
1.20 matthew 2376: sub insert_function {
2377: my $result;
1.61 matthew 2378: $result .= "\n <function></function>";
1.20 matthew 2379: return $result;
2380: }
1.4 matthew 2381:
1.20 matthew 2382: sub insert_data {
2383: my $result;
1.61 matthew 2384: $result .= "\n <data></data>";
1.20 matthew 2385: return $result;
2386: }
1.4 matthew 2387:
1.48 matthew 2388: ##----------------------------------------------------------------------
1.20 matthew 2389: 1;
2390: __END__
1.4 matthew 2391:
2392:
1.149 jms 2393: =head1 NAME
2394:
2395: Apache::lonplot.pm
2396:
2397: =head1 SYNOPSIS
2398:
2399: XML-based plotter of graphs
2400:
2401: This is part of the LearningOnline Network with CAPA project
2402: described at http://www.lon-capa.org.
2403:
2404:
2405: =head1 SUBROUTINES (parsing and edit rendering)
2406:
2407: =over
2408:
2409: =item start_gnuplot()
2410:
2411: =item end_gnuplot()
2412:
2413: =item start_xtics()
2414:
2415: =item end_xtics()
2416:
2417: =item start_ytics()
2418:
2419: =item end_ytics()
2420:
2421: =item get_font()
2422:
2423: =item start_key()
2424:
2425: =item end_key()
2426:
2427: =item parse_label()
2428:
2429: =item replace_entities()
2430:
2431: =item start_title()
2432:
2433: =item end_title()
2434:
2435: =item start_xlabel()
2436:
2437: =item end_xlabel()
2438:
2439: =item start_ylabel()
2440:
2441: =item end_label()
2442:
2443: =item start_curve()
2444:
2445: =item end_curve()
2446:
2447: =item start_function()
2448:
2449: =item end_function()
2450:
2451: =item start_data()
2452:
2453: =item end_data()
2454:
2455: =item start_axis()
2456:
2457: =item end_axis
2458:
2459: =back
2460:
2461: =head1 SUBROUTINES (Utility)
2462:
2463: =over
2464:
2465: =item set_defaults()
2466:
2467: =item get_attributes()
2468:
2469: =item write_gnuplot_file()
2470:
2471: =item check_inputs()
2472:
2473: =item edit_attributes()
2474:
1.184 ! raeburn 2475: =item fixup_colors()
! 2476:
1.149 jms 2477: =back
2478:
2479: =head1 SUBROUTINES (Insertion functions for editing plots)
2480:
2481: =over
2482:
2483: =item insert_gnuplot()
2484:
2485: =item insert_tics()
2486:
2487: =item insert_xtics()
2488:
2489: =item insert_key()
2490:
2491: =item insert_axis()
2492:
2493: =item insert_title()
2494:
2495: =item insert_xlabel()
2496:
2497: =item insert_ylabel()
2498:
2499: =item insert_label()
2500:
2501: =item insert_curve()
2502:
2503: =item insert_function()
2504:
2505: =item insert_data()
2506:
2507: =back
2508:
2509: =cut
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