Annotation of loncom/xml/lonplot.pm, revision 1.122
1.1 matthew 1: # The LearningOnline Network with CAPA
2: # Dynamic plot
3: #
1.122 ! albertel 4: # $Id: lonplot.pm,v 1.121 2007/08/03 05:56:00 albertel 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:
1.1 matthew 29: package Apache::lonplot;
1.10 matthew 30:
1.1 matthew 31: use strict;
1.89 matthew 32: use warnings FATAL=>'all';
33: no warnings 'uninitialized';
1.10 matthew 34: use Apache::File;
1.1 matthew 35: use Apache::response;
1.2 matthew 36: use Apache::lonxml;
1.20 matthew 37: use Apache::edit;
1.106 albertel 38: use Apache::lonnet;
1.113 www 39: use lib '/home/httpd/lib/perl/';
40: use LONCAPA;
41:
1.10 matthew 42:
1.97 matthew 43: use vars qw/$weboutputformat $versionstring/;
44:
1.109 foxr 45:
1.108 foxr 46:
1.33 harris41 47: BEGIN {
1.97 matthew 48: &Apache::lonxml::register('Apache::lonplot',('gnuplot'));
49: #
50: # Determine the version of GNUPLOT
51: $weboutputformat = 'gif';
1.99 matthew 52: $versionstring = `gnuplot --version 2>/dev/null`;
1.97 matthew 53: if ($versionstring =~ /^gnuplot 4/) {
54: $weboutputformat = 'png';
55: }
1.108 foxr 56:
57: }
58:
1.1 matthew 59:
1.10 matthew 60: ##
61: ## Description of data structures:
62: ##
63: ## %plot %key %axis
64: ## --------------------------
65: ## height title color
66: ## width box xmin
67: ## bgcolor pos xmax
68: ## fgcolor ymin
69: ## transparent ymax
70: ## grid
71: ## border
72: ## font
1.19 matthew 73: ## align
1.10 matthew 74: ##
75: ## @labels: $labels[$i] = \%label
76: ## %label: text, xpos, ypos, justify
1.14 matthew 77: ##
1.10 matthew 78: ## @curves: $curves[$i] = \%curve
1.14 matthew 79: ## %curve: name, linestyle, ( function | data )
1.10 matthew 80: ##
81: ## $curves[$i]->{'data'} = [ [x1,x2,x3,x4],
82: ## [y1,y2,y3,y4] ]
83: ##
1.21 matthew 84:
85: ###################################################################
86: ## ##
87: ## Tests used in checking the validitity of input ##
88: ## ##
89: ###################################################################
1.29 matthew 90:
1.32 matthew 91: my $max_str_len = 50; # if a label, title, xlabel, or ylabel text
92: # is longer than this, it will be truncated.
93:
1.29 matthew 94: my %linestyles =
95: (
96: lines => 2, # Maybe this will be used in the future
97: linespoints => 2, # to check on whether or not they have
98: dots => 2, # supplied enough <data></data> fields
99: points => 2, # to use the given line style. But for
100: steps => 2, # now there are more important things
101: fsteps => 2, # for me to deal with.
102: histeps => 2,
1.34 matthew 103: errorbars => 3,
104: xerrorbars => [3,4],
105: yerrorbars => [3,4],
1.35 matthew 106: xyerrorbars => [4,6],
1.34 matthew 107: boxes => 3,
1.110 albertel 108: filledcurves => 2,
1.35 matthew 109: vector => 4
1.29 matthew 110: );
111:
1.11 matthew 112: my $int_test = sub {$_[0]=~s/\s+//g;$_[0]=~/^\d+$/};
1.19 matthew 113: my $real_test =
114: sub {$_[0]=~s/\s+//g;$_[0]=~/^[+-]?\d*\.?\d*([eE][+-]\d+)?$/};
1.62 matthew 115: my $pos_real_test =
116: sub {$_[0]=~s/\s+//g;$_[0]=~/^[+]?\d*\.?\d*([eE][+-]\d+)?$/};
1.79 matthew 117: my $color_test = sub {$_[0]=~s/\s+//g;$_[0]=~/^x[\da-fA-F]{6}$/};
1.1 matthew 118: my $onoff_test = sub {$_[0]=~/^(on|off)$/};
1.15 matthew 119: my $key_pos_test = sub {$_[0]=~/^(top|bottom|right|left|outside|below| )+$/};
1.119 albertel 120: my $sml_test = sub {$_[0]=~/^(\d+|small|medium|large)$/};
1.29 matthew 121: my $linestyle_test = sub {exists($linestyles{$_[0]})};
1.67 matthew 122: my $words_test = sub {$_[0]=~s/\s+/ /g;$_[0]=~/^([\w~!\@\#\$\%^&\*\(\)-=_\+\[\]\{\}:\;\'<>,\.\/\?\\]+ ?)+$/};
1.21 matthew 123:
124: ###################################################################
125: ## ##
126: ## Attribute metadata ##
127: ## ##
128: ###################################################################
1.47 matthew 129: my @gnuplot_edit_order =
1.120 albertel 130: qw/alttag bgcolor fgcolor height width fontface font transparent grid samples
1.115 albertel 131: border align texwidth texfont plotcolor plottype gridtype lmargin rmargin
132: tmargin bmargin major_ticscale minor_ticscale boxwidth gridlayer fillstyle
1.110 albertel 133: pattern solid/;
1.101 matthew 134:
1.105 matthew 135: my $margin_choices = ['default',0..20];
1.48 matthew 136:
1.47 matthew 137: my %gnuplot_defaults =
1.1 matthew 138: (
1.64 matthew 139: alttag => {
140: default => 'dynamically generated plot',
141: test => $words_test,
1.120 albertel 142: description => 'Brief description of the plot',
1.64 matthew 143: edit_type => 'entry',
144: size => '40'
145: },
1.20 matthew 146: height => {
1.65 matthew 147: default => 300,
1.20 matthew 148: test => $int_test,
1.120 albertel 149: description => 'Height of image (pixels)',
1.38 matthew 150: edit_type => 'entry',
151: size => '10'
1.20 matthew 152: },
153: width => {
1.65 matthew 154: default => 400,
1.20 matthew 155: test => $int_test,
1.120 albertel 156: description => 'Width of image (pixels)',
1.38 matthew 157: edit_type => 'entry',
158: size => '10'
1.20 matthew 159: },
160: bgcolor => {
161: default => 'xffffff',
162: test => $color_test,
1.120 albertel 163: description => 'Background color of image (xffffff)',
1.38 matthew 164: edit_type => 'entry',
165: size => '10'
1.20 matthew 166: },
167: fgcolor => {
168: default => 'x000000',
169: test => $color_test,
1.120 albertel 170: description => 'Foreground color of image (x000000)',
1.38 matthew 171: edit_type => 'entry',
172: size => '10'
1.20 matthew 173: },
174: transparent => {
175: default => 'off',
176: test => $onoff_test,
1.34 matthew 177: description => 'Transparent image',
1.45 matthew 178: edit_type => 'onoff'
1.20 matthew 179: },
180: grid => {
1.65 matthew 181: default => 'on',
1.20 matthew 182: test => $onoff_test,
1.34 matthew 183: description => 'Display grid',
1.45 matthew 184: edit_type => 'onoff'
1.20 matthew 185: },
1.110 albertel 186: gridlayer => {
187: default => 'off',
188: test => $onoff_test,
189: description => 'Display grid front layer over filled boxes or filled curves',
190: edit_type => 'onoff'
191: },
192: box_border => {
193: default => 'noborder',
194: test => sub {$_[0]=~/^(noborder|border)$/},
195: description => 'Draw border for boxes',
196: edit_type => 'choice',
197: choices => ['border','noborder']
198: },
1.20 matthew 199: border => {
200: default => 'on',
201: test => $onoff_test,
1.34 matthew 202: description => 'Draw border around plot',
1.45 matthew 203: edit_type => 'onoff'
1.20 matthew 204: },
205: font => {
1.119 albertel 206: default => '9',
1.20 matthew 207: test => $sml_test,
208: description => 'Size of font to use',
209: edit_type => 'choice',
1.119 albertel 210: choices => [['5','5 (small)'],'7',['9','9 (medium)'],'10','12',['15','15 (large)']]
1.20 matthew 211: },
1.120 albertel 212: fontface => {
213: default => 'sans-serif',
214: test => sub {$_[0]=~/^(sans-serif|serif|classic)$/},
215: description => 'Type of font to use',
216: edit_type => 'choice',
217: choices => ['sans-serif','serif', 'classic']
218: },
1.110 albertel 219: samples => {
1.77 matthew 220: default => '100',
221: test => $int_test,
222: description => 'Number of samples for non-data plots',
223: edit_type => 'choice',
224: choices => ['100','200','500','1000','2000','5000']
225: },
1.20 matthew 226: align => {
1.116 albertel 227: default => 'middle',
228: test => sub {$_[0]=~/^(left|right|middle|center)$/},
1.120 albertel 229: description => 'Alignment for image in HTML',
1.20 matthew 230: edit_type => 'choice',
1.116 albertel 231: choices => ['left','right','middle']
1.82 matthew 232: },
233: texwidth => {
234: default => '93',
235: test => $int_test,
236: description => 'Width of plot when printed (mm)',
237: edit_type => 'entry',
238: size => '5'
239: },
1.110 albertel 240: texfont => {
1.92 matthew 241: default => '22',
242: test => $int_test,
243: description => 'Font size to use in TeX output (pts):',
244: edit_type => 'choice',
1.96 matthew 245: choices => [qw/8 10 12 14 16 18 20 22 24 26 28 30 32 34 36/],
1.92 matthew 246: },
1.110 albertel 247: plotcolor => {
1.105 matthew 248: default => 'monochrome',
249: test => sub {$_[0]=~/^(monochrome|color|colour)$/},
250: description => 'Color setting for printing:',
251: edit_type => 'choice',
252: choices => [qw/monochrome color colour/],
253: },
1.110 albertel 254: pattern => {
255: default => '',
256: test => $int_test,
1.120 albertel 257: description => 'Pattern value for boxes:',
1.110 albertel 258: edit_type => 'choice',
259: choices => [0,1,2,3,4,5,6]
260: },
261: solid => {
262: default => 0,
263: test => $real_test,
264: description => 'The density of fill style for boxes',
265: edit_type => 'entry',
266: size => '5'
267: },
268: fillstyle => {
269: default => 'empty',
270: test => sub {$_[0]=~/^(empty|solid|pattern)$/},
271: description => 'Filled style for boxes:',
272: edit_type => 'choice',
273: choices => ['empty','solid','pattern']
274: },
275: plottype => {
1.87 matthew 276: default => 'Cartesian',
277: test => sub {$_[0]=~/^(Polar|Cartesian)$/},
278: description => 'Plot type:',
279: edit_type => 'choice',
1.94 matthew 280: choices => ['Cartesian','Polar']
1.87 matthew 281: },
1.115 albertel 282: gridtype => {
283: default => 'Cartesian',
1.118 albertel 284: test => sub {$_[0]=~/^(Polar|Cartesian|Linear-Log|Log-Linear|Log-Log)$/},
1.115 albertel 285: description => 'Grid type:',
286: edit_type => 'choice',
1.118 albertel 287: choices => ['Cartesian','Polar','Linear-Log','Log-Linear','Log-Log']
1.115 albertel 288: },
1.110 albertel 289: lmargin => {
1.101 matthew 290: default => 'default',
291: test => sub {$_[0]=~/^(default|\d+)$/},
292: description => 'Left margin width (pts):',
293: edit_type => 'choice',
294: choices => $margin_choices,
295: },
1.110 albertel 296: rmargin => {
1.101 matthew 297: default => 'default',
298: test => sub {$_[0]=~/^(default|\d+)$/},
299: description => 'Right margin width (pts):',
300: edit_type => 'choice',
301: choices => $margin_choices,
302: },
1.110 albertel 303: tmargin => {
1.101 matthew 304: default => 'default',
305: test => sub {$_[0]=~/^(default|\d+)$/},
306: description => 'Top margin width (pts):',
307: edit_type => 'choice',
308: choices => $margin_choices,
309: },
1.110 albertel 310: bmargin => {
1.101 matthew 311: default => 'default',
312: test => sub {$_[0]=~/^(default|\d+)$/},
1.104 www 313: description => 'Bottom margin width (pts):',
1.101 matthew 314: edit_type => 'choice',
315: choices => $margin_choices,
316: },
1.110 albertel 317: boxwidth => {
318: default => '',
319: test => $real_test,
1.120 albertel 320: description => 'Width of boxes, default is auto',
1.110 albertel 321: edit_type => 'entry',
322: size => '5'
323: },
1.101 matthew 324: major_ticscale => {
325: default => '1',
326: test => $real_test,
327: description => 'Size of major tic marks (plot coordinates)',
328: edit_type => 'entry',
329: size => '5'
330: },
331: minor_ticscale => {
332: default => '0.5',
333: test => $real_test,
334: description => 'Size of minor tic mark (plot coordinates)',
335: edit_type => 'entry',
336: size => '5'
337: },
1.1 matthew 338: );
339:
340: my %key_defaults =
341: (
1.20 matthew 342: title => {
343: default => '',
344: test => $words_test,
345: description => 'Title of key',
1.38 matthew 346: edit_type => 'entry',
347: size => '40'
1.20 matthew 348: },
349: box => {
350: default => 'off',
351: test => $onoff_test,
352: description => 'Draw a box around the key?',
1.45 matthew 353: edit_type => 'onoff'
1.20 matthew 354: },
355: pos => {
356: default => 'top right',
357: test => $key_pos_test,
1.120 albertel 358: description => 'Position of the key on the plot',
1.20 matthew 359: edit_type => 'choice',
360: choices => ['top left','top right','bottom left','bottom right',
361: 'outside','below']
362: }
1.1 matthew 363: );
364:
365: my %label_defaults =
366: (
1.20 matthew 367: xpos => {
368: default => 0,
369: test => $real_test,
1.120 albertel 370: description => 'X position of label (graph coordinates)',
1.38 matthew 371: edit_type => 'entry',
372: size => '10'
1.20 matthew 373: },
374: ypos => {
375: default => 0,
376: test => $real_test,
1.120 albertel 377: description => 'Y position of label (graph coordinates)',
1.38 matthew 378: edit_type => 'entry',
379: size => '10'
1.20 matthew 380: },
381: justify => {
382: default => 'left',
383: test => sub {$_[0]=~/^(left|right|center)$/},
384: description => 'justification of the label text on the plot',
385: edit_type => 'choice',
386: choices => ['left','right','center']
387: }
1.1 matthew 388: );
389:
1.89 matthew 390: my @tic_edit_order = ('location','mirror','start','increment','end',
391: 'minorfreq');
1.45 matthew 392: my %tic_defaults =
393: (
394: location => {
395: default => 'border',
396: test => sub {$_[0]=~/^(border|axis)$/},
1.90 matthew 397: description => 'Location of major tic marks',
1.45 matthew 398: edit_type => 'choice',
399: choices => ['border','axis']
400: },
401: mirror => {
402: default => 'on',
403: test => $onoff_test,
1.120 albertel 404: description => 'Mirror tics on opposite axis?',
1.45 matthew 405: edit_type => 'onoff'
406: },
407: start => {
408: default => '-10.0',
409: test => $real_test,
1.90 matthew 410: description => 'Start major tics at',
1.45 matthew 411: edit_type => 'entry',
412: size => '10'
413: },
414: increment => {
415: default => '1.0',
416: test => $real_test,
1.90 matthew 417: description => 'Place a major tic every',
1.45 matthew 418: edit_type => 'entry',
419: size => '10'
420: },
421: end => {
422: default => ' 10.0',
423: test => $real_test,
1.90 matthew 424: description => 'Stop major tics at ',
1.45 matthew 425: edit_type => 'entry',
426: size => '10'
427: },
1.89 matthew 428: minorfreq => {
429: default => '0',
430: test => $int_test,
1.98 matthew 431: description => 'Number of minor tics per major tic mark',
1.89 matthew 432: edit_type => 'entry',
433: size => '10'
434: },
1.45 matthew 435: );
436:
1.65 matthew 437: my @axis_edit_order = ('color','xmin','xmax','ymin','ymax');
1.1 matthew 438: my %axis_defaults =
439: (
1.28 matthew 440: color => {
1.20 matthew 441: default => 'x000000',
442: test => $color_test,
1.120 albertel 443: description => 'Color of grid lines (x000000)',
1.38 matthew 444: edit_type => 'entry',
445: size => '10'
1.20 matthew 446: },
447: xmin => {
448: default => '-10.0',
449: test => $real_test,
1.120 albertel 450: description => 'Minimum x-value shown in plot',
1.38 matthew 451: edit_type => 'entry',
452: size => '10'
1.20 matthew 453: },
454: xmax => {
455: default => ' 10.0',
456: test => $real_test,
1.120 albertel 457: description => 'Maximum x-value shown in plot',
1.38 matthew 458: edit_type => 'entry',
459: size => '10'
1.20 matthew 460: },
461: ymin => {
462: default => '-10.0',
463: test => $real_test,
1.120 albertel 464: description => 'Minimum y-value shown in plot',
1.38 matthew 465: edit_type => 'entry',
466: size => '10'
1.20 matthew 467: },
468: ymax => {
469: default => ' 10.0',
470: test => $real_test,
1.120 albertel 471: description => 'Maximum y-value shown in plot',
1.38 matthew 472: edit_type => 'entry',
473: size => '10'
1.20 matthew 474: }
1.1 matthew 475: );
476:
1.119 albertel 477: my @curve_edit_order = ('color','name','linestyle','linewidth','pointtype','pointsize','limit');
1.60 matthew 478:
1.1 matthew 479: my %curve_defaults =
480: (
1.20 matthew 481: color => {
482: default => 'x000000',
483: test => $color_test,
1.120 albertel 484: description => 'Color of curve (x000000)',
1.38 matthew 485: edit_type => 'entry',
486: size => '10'
1.20 matthew 487: },
488: name => {
489: default => '',
490: test => $words_test,
1.120 albertel 491: description => 'Name of curve to appear in key',
1.38 matthew 492: edit_type => 'entry',
493: size => '20'
1.20 matthew 494: },
495: linestyle => {
496: default => 'lines',
497: test => $linestyle_test,
1.35 matthew 498: description => 'Line style',
1.20 matthew 499: edit_type => 'choice',
1.38 matthew 500: choices => [keys(%linestyles)]
1.60 matthew 501: },
1.119 albertel 502: linewidth => {
503: default => 4,
504: test => $int_test,
505: description => 'Line width (may not apply to all line styles)',
506: edit_type => 'choice',
507: choices => [1,2,3,4,5,6,7,8,9,10]
508: },
1.60 matthew 509: pointsize => {
510: default => 1,
1.62 matthew 511: test => $pos_real_test,
1.120 albertel 512: description => 'Point size (may not apply to all line styles)',
1.62 matthew 513: edit_type => 'entry',
514: size => '5'
515: },
516: pointtype => {
517: default => 1,
1.60 matthew 518: test => $int_test,
1.120 albertel 519: description => 'Point type (may not apply to all line styles)',
1.60 matthew 520: edit_type => 'choice',
1.62 matthew 521: choices => [0,1,2,3,4,5,6]
1.110 albertel 522: },
523: limit => {
524: default => 'closed',
525: test => sub {$_[0]=~/^(closed|x1|x2|y1|y2)$/},
1.120 albertel 526: description => 'Point to fill -- for filledcurves',
1.110 albertel 527: edit_type => 'choice',
528: choices => ['closed','x1','x2','y1','y2']
529: },
1.1 matthew 530: );
531:
1.21 matthew 532: ###################################################################
533: ## ##
534: ## parsing and edit rendering ##
535: ## ##
536: ###################################################################
1.107 foxr 537:
538: undef %Apache::lonplot::plot;
539: my (%key,%axis,$title,$xlabel,$ylabel,@labels,@curves,%xtics,%ytics);
1.1 matthew 540:
1.47 matthew 541: sub start_gnuplot {
1.107 foxr 542: undef(%Apache::lonplot::plot); undef(%key); undef(%axis);
1.89 matthew 543: undef($title); undef($xlabel); undef($ylabel);
544: undef(@labels); undef(@curves);
545: undef(%xtics); undef(%ytics);
1.6 matthew 546: #
1.1 matthew 547: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
548: my $result='';
1.25 matthew 549: &Apache::lonxml::register('Apache::lonplot',
1.45 matthew 550: ('title','xlabel','ylabel','key','axis','label','curve',
551: 'xtics','ytics'));
1.29 matthew 552: push (@Apache::lonxml::namespace,'lonplot');
1.51 matthew 553: if ($target eq 'web' || $target eq 'tex') {
1.107 foxr 554: &get_attributes(\%Apache::lonplot::plot,\%gnuplot_defaults,$parstack,$safeeval,
1.17 matthew 555: $tagstack->[-1]);
1.20 matthew 556: } elsif ($target eq 'edit') {
1.47 matthew 557: $result .= &Apache::edit::tag_start($target,$token,'GnuPlot');
558: $result .= &edit_attributes($target,$token,\%gnuplot_defaults,
1.116 albertel 559: \@gnuplot_edit_order)
560: .&Apache::edit::end_row()
561: .&Apache::edit::start_spanning_row();
1.20 matthew 562: } elsif ($target eq 'modified') {
563: my $constructtag=&Apache::edit::get_new_args
1.47 matthew 564: ($token,$parstack,$safeeval,keys(%gnuplot_defaults));
1.20 matthew 565: if ($constructtag) {
566: $result = &Apache::edit::rebuild_tag($token);
567: }
1.4 matthew 568: }
1.21 matthew 569: return $result;
1.1 matthew 570: }
571:
1.47 matthew 572: sub end_gnuplot {
1.1 matthew 573: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
574: pop @Apache::lonxml::namespace;
1.4 matthew 575: &Apache::lonxml::deregister('Apache::lonplot',
576: ('title','xlabel','ylabel','key','axis','label','curve'));
577: my $result = '';
1.56 albertel 578: my $randnumber;
579: # need to call rand everytime start_script would evaluate, as the
580: # safe space rand number generator and the global rand generator
1.95 www 581: # are not separate
1.56 albertel 582: if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
583: $target eq 'answer') {
584: $randnumber=int(rand(1000));
585: }
1.51 matthew 586: if ($target eq 'web' || $target eq 'tex') {
1.21 matthew 587: &check_inputs(); # Make sure we have all the data we need
1.13 matthew 588: ##
589: ## Determine filename
1.4 matthew 590: my $tmpdir = '/home/httpd/perl/tmp/';
1.106 albertel 591: my $filename = $env{'user.name'}.'_'.$env{'user.domain'}.
1.69 matthew 592: '_'.time.'_'.$$.$randnumber.'_plot';
1.4 matthew 593: ## Write the plot description to the file
1.51 matthew 594: &write_gnuplot_file($tmpdir,$filename,$target);
1.113 www 595: $filename = &escape($filename);
1.4 matthew 596: ## return image tag for the plot
1.51 matthew 597: if ($target eq 'web') {
598: $result .= <<"ENDIMAGE";
1.114 albertel 599: <img src = "/cgi-bin/plot.$weboutputformat?file=$filename.data"
1.107 foxr 600: width = "$Apache::lonplot::plot{'width'}"
601: height = "$Apache::lonplot::plot{'height'}"
602: align = "$Apache::lonplot::plot{'align'}"
603: alt = "$Apache::lonplot::plot{'alttag'}" />
1.12 matthew 604: ENDIMAGE
1.51 matthew 605: } elsif ($target eq 'tex') {
1.107 foxr 606: &Apache::lonxml::debug(" gnuplot wid = $Apache::lonplot::plot{'width'}");
607: &Apache::lonxml::debug(" gnuplot ht = $Apache::lonplot::plot{'height'}");
1.91 albertel 608: #might be inside the safe space, register the URL for later
609: &Apache::lonxml::register_ssi("/cgi-bin/plot.gif?file=$filename.data&output=eps");
1.111 albertel 610: $result = "%DYNAMICIMAGE:$Apache::lonplot::plot{'width'}:$Apache::lonplot::plot{'height'}:$Apache::lonplot::plot{'texwidth'}\n";
1.109 foxr 611: $result .= '\graphicspath{{/home/httpd/perl/tmp/}}'."\n";
1.113 www 612: $result .= '\includegraphics[width='.$Apache::lonplot::plot{'texwidth'}.' mm]{'.&unescape($filename).'.eps}';
1.51 matthew 613: }
1.20 matthew 614: } elsif ($target eq 'edit') {
1.21 matthew 615: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 616: }
1.1 matthew 617: return $result;
618: }
1.2 matthew 619:
1.45 matthew 620:
621: ##--------------------------------------------------------------- xtics
622: sub start_xtics {
623: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
624: my $result='';
1.51 matthew 625: if ($target eq 'web' || $target eq 'tex') {
1.45 matthew 626: &get_attributes(\%xtics,\%tic_defaults,$parstack,$safeeval,
627: $tagstack->[-1]);
628: } elsif ($target eq 'edit') {
629: $result .= &Apache::edit::tag_start($target,$token,'xtics');
630: $result .= &edit_attributes($target,$token,\%tic_defaults,
631: \@tic_edit_order);
632: } elsif ($target eq 'modified') {
633: my $constructtag=&Apache::edit::get_new_args
634: ($token,$parstack,$safeeval,keys(%tic_defaults));
635: if ($constructtag) {
636: $result = &Apache::edit::rebuild_tag($token);
637: }
638: }
639: return $result;
640: }
641:
642: sub end_xtics {
643: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
644: my $result = '';
1.51 matthew 645: if ($target eq 'web' || $target eq 'tex') {
1.45 matthew 646: } elsif ($target eq 'edit') {
647: $result.=&Apache::edit::tag_end($target,$token);
648: }
649: return $result;
650: }
651:
652: ##--------------------------------------------------------------- ytics
653: sub start_ytics {
654: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
655: my $result='';
1.51 matthew 656: if ($target eq 'web' || $target eq 'tex') {
1.45 matthew 657: &get_attributes(\%ytics,\%tic_defaults,$parstack,$safeeval,
658: $tagstack->[-1]);
659: } elsif ($target eq 'edit') {
660: $result .= &Apache::edit::tag_start($target,$token,'ytics');
661: $result .= &edit_attributes($target,$token,\%tic_defaults,
662: \@tic_edit_order);
663: } elsif ($target eq 'modified') {
664: my $constructtag=&Apache::edit::get_new_args
665: ($token,$parstack,$safeeval,keys(%tic_defaults));
666: if ($constructtag) {
667: $result = &Apache::edit::rebuild_tag($token);
668: }
669: }
670: return $result;
671: }
672:
673: sub end_ytics {
674: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
675: my $result = '';
1.51 matthew 676: if ($target eq 'web' || $target eq 'tex') {
1.45 matthew 677: } elsif ($target eq 'edit') {
678: $result.=&Apache::edit::tag_end($target,$token);
679: }
680: return $result;
681: }
682:
1.119 albertel 683: ##-----------------------------------------------------------------font
1.120 albertel 684: my %font_properties =
685: (
686: 'classic' => {
687: face => 'classic',
688: file => 'DejaVuSansMono-Bold',
689: printname => 'Helvetica',
1.121 albertel 690: tex_no_file => 1,
1.120 albertel 691: },
692: 'sans-serif' => {
693: face => 'sans-serif',
694: file => 'DejaVuSans',
695: printname => 'DejaVuSans',
696: },
697: 'serif' => {
698: face => 'serif',
699: file => 'DejaVuSerif',
700: printname => 'DejaVuSerif',
701: },
702: );
703:
1.119 albertel 704: sub get_font {
1.120 albertel 705: my ($size, $selected_font);
706:
1.119 albertel 707: if ( $Apache::lonplot::plot{'font'} =~ /^(small|medium|large)/) {
1.120 albertel 708: $selected_font = $font_properties{'classic'};
1.119 albertel 709: if ( $Apache::lonplot::plot{'font'} eq 'small') {
710: $size = '5';
711: } elsif ( $Apache::lonplot::plot{'font'} eq 'medium') {
712: $size = '9';
713: } elsif ( $Apache::lonplot::plot{'font'} eq 'large') {
714: $size = '15';
715: } else {
716: $size = '9';
717: }
718: } else {
1.122 ! albertel 719: $size = $Apache::lonplot::plot{'font'};
1.120 albertel 720: $selected_font = $font_properties{$Apache::lonplot::plot{'fontface'}};
1.119 albertel 721: }
1.120 albertel 722: return ($size, $selected_font);
1.119 albertel 723: }
1.45 matthew 724:
1.1 matthew 725: ##----------------------------------------------------------------- key
726: sub start_key {
727: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
728: my $result='';
1.51 matthew 729: if ($target eq 'web' || $target eq 'tex') {
1.17 matthew 730: &get_attributes(\%key,\%key_defaults,$parstack,$safeeval,
1.11 matthew 731: $tagstack->[-1]);
1.20 matthew 732: } elsif ($target eq 'edit') {
1.25 matthew 733: $result .= &Apache::edit::tag_start($target,$token,'Plot Key');
1.21 matthew 734: $result .= &edit_attributes($target,$token,\%key_defaults);
1.20 matthew 735: } elsif ($target eq 'modified') {
736: my $constructtag=&Apache::edit::get_new_args
1.24 matthew 737: ($token,$parstack,$safeeval,keys(%key_defaults));
1.20 matthew 738: if ($constructtag) {
739: $result = &Apache::edit::rebuild_tag($token);
740: }
1.4 matthew 741: }
1.1 matthew 742: return $result;
743: }
744:
745: sub end_key {
746: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
747: my $result = '';
1.51 matthew 748: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 749: } elsif ($target eq 'edit') {
1.21 matthew 750: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 751: }
1.1 matthew 752: return $result;
753: }
1.21 matthew 754:
1.1 matthew 755: ##------------------------------------------------------------------- title
756: sub start_title {
757: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
758: my $result='';
1.51 matthew 759: if ($target eq 'web' || $target eq 'tex') {
1.112 albertel 760: $title = &Apache::lonxml::get_all_text("/title",$parser,$style);
1.58 matthew 761: $title=&Apache::run::evaluate($title,$safeeval,$$parstack[-1]);
1.49 matthew 762: $title =~ s/\n/ /g;
1.32 matthew 763: if (length($title) > $max_str_len) {
764: $title = substr($title,0,$max_str_len);
765: }
1.20 matthew 766: } elsif ($target eq 'edit') {
1.25 matthew 767: $result.=&Apache::edit::tag_start($target,$token,'Plot Title');
1.112 albertel 768: my $text=&Apache::lonxml::get_all_text("/title",$parser,$style);
1.116 albertel 769: $result.=&Apache::edit::editline('',$text,'',60);
1.20 matthew 770: } elsif ($target eq 'modified') {
1.42 matthew 771: $result.=&Apache::edit::rebuild_tag($token);
1.93 albertel 772: $result.=&Apache::edit::modifiedfield("/title",$parser);
1.4 matthew 773: }
1.1 matthew 774: return $result;
775: }
776:
777: sub end_title {
778: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
779: my $result = '';
1.51 matthew 780: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 781: } elsif ($target eq 'edit') {
1.27 matthew 782: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 783: }
1.1 matthew 784: return $result;
785: }
786: ##------------------------------------------------------------------- xlabel
787: sub start_xlabel {
788: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
789: my $result='';
1.51 matthew 790: if ($target eq 'web' || $target eq 'tex') {
1.112 albertel 791: $xlabel = &Apache::lonxml::get_all_text("/xlabel",$parser,$style);
1.58 matthew 792: $xlabel=&Apache::run::evaluate($xlabel,$safeeval,$$parstack[-1]);
1.49 matthew 793: $xlabel =~ s/\n/ /g;
1.32 matthew 794: if (length($xlabel) > $max_str_len) {
795: $xlabel = substr($xlabel,0,$max_str_len);
796: }
1.20 matthew 797: } elsif ($target eq 'edit') {
1.25 matthew 798: $result.=&Apache::edit::tag_start($target,$token,'Plot Xlabel');
1.112 albertel 799: my $text=&Apache::lonxml::get_all_text("/xlabel",$parser,$style);
1.116 albertel 800: $result.=&Apache::edit::editline('',$text,'',60);
1.20 matthew 801: } elsif ($target eq 'modified') {
1.42 matthew 802: $result.=&Apache::edit::rebuild_tag($token);
1.93 albertel 803: $result.=&Apache::edit::modifiedfield("/xlabel",$parser);
1.4 matthew 804: }
1.1 matthew 805: return $result;
806: }
807:
808: sub end_xlabel {
809: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
810: my $result = '';
1.51 matthew 811: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 812: } elsif ($target eq 'edit') {
1.27 matthew 813: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 814: }
1.1 matthew 815: return $result;
816: }
1.21 matthew 817:
1.1 matthew 818: ##------------------------------------------------------------------- ylabel
819: sub start_ylabel {
820: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
821: my $result='';
1.51 matthew 822: if ($target eq 'web' || $target eq 'tex') {
1.112 albertel 823: $ylabel = &Apache::lonxml::get_all_text("/ylabel",$parser,$style);
1.58 matthew 824: $ylabel = &Apache::run::evaluate($ylabel,$safeeval,$$parstack[-1]);
1.49 matthew 825: $ylabel =~ s/\n/ /g;
1.32 matthew 826: if (length($ylabel) > $max_str_len) {
827: $ylabel = substr($ylabel,0,$max_str_len);
828: }
1.20 matthew 829: } elsif ($target eq 'edit') {
1.25 matthew 830: $result .= &Apache::edit::tag_start($target,$token,'Plot Ylabel');
1.112 albertel 831: my $text = &Apache::lonxml::get_all_text("/ylabel",$parser,$style);
1.116 albertel 832: $result .= &Apache::edit::editline('',$text,'',60);
1.20 matthew 833: } elsif ($target eq 'modified') {
1.42 matthew 834: $result.=&Apache::edit::rebuild_tag($token);
1.93 albertel 835: $result.=&Apache::edit::modifiedfield("/ylabel",$parser);
1.4 matthew 836: }
1.1 matthew 837: return $result;
838: }
839:
840: sub end_ylabel {
841: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
842: my $result = '';
1.51 matthew 843: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 844: } elsif ($target eq 'edit') {
1.27 matthew 845: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 846: }
1.1 matthew 847: return $result;
848: }
1.21 matthew 849:
1.1 matthew 850: ##------------------------------------------------------------------- label
851: sub start_label {
852: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
853: my $result='';
1.51 matthew 854: if ($target eq 'web' || $target eq 'tex') {
1.17 matthew 855: my %label;
856: &get_attributes(\%label,\%label_defaults,$parstack,$safeeval,
1.11 matthew 857: $tagstack->[-1]);
1.112 albertel 858: my $text = &Apache::lonxml::get_all_text("/label",$parser,$style);
1.58 matthew 859: $text = &Apache::run::evaluate($text,$safeeval,$$parstack[-1]);
1.49 matthew 860: $text =~ s/\n/ /g;
1.32 matthew 861: $text = substr($text,0,$max_str_len) if (length($text) > $max_str_len);
862: $label{'text'} = $text;
1.17 matthew 863: push(@labels,\%label);
1.20 matthew 864: } elsif ($target eq 'edit') {
1.25 matthew 865: $result .= &Apache::edit::tag_start($target,$token,'Plot Label');
1.21 matthew 866: $result .= &edit_attributes($target,$token,\%label_defaults);
1.112 albertel 867: my $text = &Apache::lonxml::get_all_text("/label",$parser,$style);
1.39 matthew 868: $result .= &Apache::edit::end_row().
869: &Apache::edit::start_spanning_row().
1.63 albertel 870: &Apache::edit::editline('',$text,'',60);
1.20 matthew 871: } elsif ($target eq 'modified') {
1.42 matthew 872: &Apache::edit::get_new_args
1.24 matthew 873: ($token,$parstack,$safeeval,keys(%label_defaults));
1.42 matthew 874: $result.=&Apache::edit::rebuild_tag($token);
1.93 albertel 875: $result.=&Apache::edit::modifiedfield("/label",$parser);
1.4 matthew 876: }
1.1 matthew 877: return $result;
878: }
879:
880: sub end_label {
881: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
882: my $result = '';
1.51 matthew 883: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 884: } elsif ($target eq 'edit') {
1.21 matthew 885: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 886: }
1.1 matthew 887: return $result;
888: }
889:
890: ##------------------------------------------------------------------- curve
891: sub start_curve {
892: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
893: my $result='';
1.25 matthew 894: &Apache::lonxml::register('Apache::lonplot',('function','data'));
895: push (@Apache::lonxml::namespace,'curve');
1.51 matthew 896: if ($target eq 'web' || $target eq 'tex') {
1.17 matthew 897: my %curve;
898: &get_attributes(\%curve,\%curve_defaults,$parstack,$safeeval,
1.11 matthew 899: $tagstack->[-1]);
1.17 matthew 900: push (@curves,\%curve);
1.20 matthew 901: } elsif ($target eq 'edit') {
1.26 matthew 902: $result .= &Apache::edit::tag_start($target,$token,'Curve');
1.60 matthew 903: $result .= &edit_attributes($target,$token,\%curve_defaults,
1.116 albertel 904: \@curve_edit_order)
905: .&Apache::edit::end_row()
906: .&Apache::edit::start_spanning_row();
907:
1.20 matthew 908: } elsif ($target eq 'modified') {
909: my $constructtag=&Apache::edit::get_new_args
1.35 matthew 910: ($token,$parstack,$safeeval,keys(%curve_defaults));
1.20 matthew 911: if ($constructtag) {
912: $result = &Apache::edit::rebuild_tag($token);
913: }
1.4 matthew 914: }
1.1 matthew 915: return $result;
916: }
917:
918: sub end_curve {
919: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
920: my $result = '';
1.25 matthew 921: pop @Apache::lonxml::namespace;
922: &Apache::lonxml::deregister('Apache::lonplot',('function','data'));
1.51 matthew 923: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 924: } elsif ($target eq 'edit') {
1.21 matthew 925: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 926: }
1.1 matthew 927: return $result;
928: }
1.21 matthew 929:
1.1 matthew 930: ##------------------------------------------------------------ curve function
931: sub start_function {
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: if (exists($curves[-1]->{'data'})) {
1.85 matthew 936: &Apache::lonxml::warning
937: ('Use of the <b>curve function</b> tag precludes use of '.
938: ' the <b>curve data</b> tag. '.
939: 'The curve data tag will be omitted in favor of the '.
940: 'curve function declaration.');
1.17 matthew 941: delete $curves[-1]->{'data'} ;
942: }
1.112 albertel 943: my $function = &Apache::lonxml::get_all_text("/function",$parser,
944: $style);
1.58 matthew 945: $function = &Apache::run::evaluate($function,$safeeval,$$parstack[-1]);
946: $curves[-1]->{'function'} = $function;
1.20 matthew 947: } elsif ($target eq 'edit') {
1.37 matthew 948: $result .= &Apache::edit::tag_start($target,$token,'Gnuplot compatible curve function');
1.112 albertel 949: my $text = &Apache::lonxml::get_all_text("/function",$parser,$style);
1.116 albertel 950: $result .= &Apache::edit::editline('',$text,'',60);
1.20 matthew 951: } elsif ($target eq 'modified') {
1.42 matthew 952: $result.=&Apache::edit::rebuild_tag($token);
1.93 albertel 953: $result.=&Apache::edit::modifiedfield("/function",$parser);
1.4 matthew 954: }
1.1 matthew 955: return $result;
956: }
957:
958: sub end_function {
959: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
960: my $result = '';
1.51 matthew 961: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 962: } elsif ($target eq 'edit') {
1.26 matthew 963: $result .= &Apache::edit::end_table();
1.4 matthew 964: }
1.1 matthew 965: return $result;
966: }
1.21 matthew 967:
1.1 matthew 968: ##------------------------------------------------------------ curve data
969: sub start_data {
970: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
971: my $result='';
1.51 matthew 972: if ($target eq 'web' || $target eq 'tex') {
1.17 matthew 973: if (exists($curves[-1]->{'function'})) {
1.85 matthew 974: &Apache::lonxml::warning
975: ('Use of the <b>curve function</b> tag precludes use of '.
976: ' the <b>curve data</b> tag. '.
977: 'The curve function tag will be omitted in favor of the '.
978: 'curve data declaration.');
1.17 matthew 979: delete($curves[-1]->{'function'});
980: }
1.112 albertel 981: my $datatext = &Apache::lonxml::get_all_text("/data",$parser,$style);
1.58 matthew 982: $datatext=&Apache::run::evaluate($datatext,$safeeval,$$parstack[-1]);
1.40 matthew 983: # Deal with cases where we're given an array...
984: if ($datatext =~ /^\@/) {
985: $datatext = &Apache::run::run('return "'.$datatext.'"',
986: $safeeval,1);
987: }
1.49 matthew 988: $datatext =~ s/\s+/ /g;
1.17 matthew 989: # Need to do some error checking on the @data array -
990: # make sure it's all numbers and make sure each array
991: # is of the same length.
992: my @data;
1.35 matthew 993: if ($datatext =~ /,/) { # comma deliminated
1.17 matthew 994: @data = split /,/,$datatext;
1.95 www 995: } else { # Assume it's space separated.
1.17 matthew 996: @data = split / /,$datatext;
997: }
998: for (my $i=0;$i<=$#data;$i++) {
999: # Check that it's non-empty
1.19 matthew 1000: if (! defined($data[$i])) {
1001: &Apache::lonxml::warning(
1.85 matthew 1002: 'undefined curve data value. Replacing with '.
1.19 matthew 1003: ' pi/e = 1.15572734979092');
1004: $data[$i] = 1.15572734979092;
1005: }
1.17 matthew 1006: # Check that it's a number
1.19 matthew 1007: if (! &$real_test($data[$i]) & ! &$int_test($data[$i])) {
1008: &Apache::lonxml::warning(
1.85 matthew 1009: 'Bad curve data value of '.$data[$i].' Replacing with '.
1.19 matthew 1010: ' pi/e = 1.15572734979092');
1011: $data[$i] = 1.15572734979092;
1012: }
1.17 matthew 1013: }
1.35 matthew 1014: # complain if the number of data points is not the same as
1015: # in previous sets of data.
1.36 matthew 1016: if (($curves[-1]->{'data'}) && ($#data != $#{@{$curves[-1]->{'data'}->[0]}})){
1.35 matthew 1017: &Apache::lonxml::warning
1018: ('Number of data points is not consistent with previous '.
1019: 'number of data points');
1020: }
1.17 matthew 1021: push @{$curves[-1]->{'data'}},\@data;
1.20 matthew 1022: } elsif ($target eq 'edit') {
1.37 matthew 1023: $result .= &Apache::edit::tag_start($target,$token,'Comma or space deliminated curve data');
1.112 albertel 1024: my $text = &Apache::lonxml::get_all_text("/data",$parser,$style);
1.116 albertel 1025: $result .= &Apache::edit::editline('',$text,'',60);
1.20 matthew 1026: } elsif ($target eq 'modified') {
1.42 matthew 1027: $result.=&Apache::edit::rebuild_tag($token);
1.93 albertel 1028: $result.=&Apache::edit::modifiedfield("/data",$parser);
1.4 matthew 1029: }
1.1 matthew 1030: return $result;
1031: }
1032:
1033: sub end_data {
1034: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1035: my $result = '';
1.51 matthew 1036: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 1037: } elsif ($target eq 'edit') {
1.26 matthew 1038: $result .= &Apache::edit::end_table();
1.4 matthew 1039: }
1.1 matthew 1040: return $result;
1041: }
1042:
1043: ##------------------------------------------------------------------- axis
1044: sub start_axis {
1045: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1046: my $result='';
1.51 matthew 1047: if ($target eq 'web' || $target eq 'tex') {
1.17 matthew 1048: &get_attributes(\%axis,\%axis_defaults,$parstack,$safeeval,
1049: $tagstack->[-1]);
1.20 matthew 1050: } elsif ($target eq 'edit') {
1.25 matthew 1051: $result .= &Apache::edit::tag_start($target,$token,'Plot Axes');
1.65 matthew 1052: $result .= &edit_attributes($target,$token,\%axis_defaults,
1053: \@axis_edit_order);
1.20 matthew 1054: } elsif ($target eq 'modified') {
1.29 matthew 1055: my $constructtag=&Apache::edit::get_new_args
1056: ($token,$parstack,$safeeval,keys(%axis_defaults));
1057: if ($constructtag) {
1058: $result = &Apache::edit::rebuild_tag($token);
1059: }
1.4 matthew 1060: }
1.1 matthew 1061: return $result;
1062: }
1063:
1064: sub end_axis {
1065: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1066: my $result = '';
1.51 matthew 1067: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 1068: } elsif ($target eq 'edit') {
1.21 matthew 1069: $result.=&Apache::edit::tag_end($target,$token);
1.20 matthew 1070: } elsif ($target eq 'modified') {
1.4 matthew 1071: }
1.1 matthew 1072: return $result;
1073: }
1074:
1.21 matthew 1075: ###################################################################
1076: ## ##
1077: ## Utility Functions ##
1078: ## ##
1079: ###################################################################
1080:
1.13 matthew 1081: ##----------------------------------------------------------- set_defaults
1082: sub set_defaults {
1.21 matthew 1083: my ($var,$defaults) = @_;
1.13 matthew 1084: my $key;
1.24 matthew 1085: foreach $key (keys(%$defaults)) {
1.13 matthew 1086: $var->{$key} = $defaults->{$key}->{'default'};
1087: }
1088: }
1089:
1.1 matthew 1090: ##------------------------------------------------------------------- misc
1.2 matthew 1091: sub get_attributes{
1.21 matthew 1092: my ($values,$defaults,$parstack,$safeeval,$tag) = @_;
1.24 matthew 1093: foreach my $attr (keys(%{$defaults})) {
1.92 matthew 1094: if ($attr eq 'texwidth' || $attr eq 'texfont') {
1.86 albertel 1095: $values->{$attr} =
1096: &Apache::lonxml::get_param($attr,$parstack,$safeeval,undef,1);
1097: } else {
1098: $values->{$attr} =
1099: &Apache::lonxml::get_param($attr,$parstack,$safeeval);
1100: }
1.10 matthew 1101: if ($values->{$attr} eq '' | !defined($values->{$attr})) {
1.11 matthew 1102: $values->{$attr} = $defaults->{$attr}->{'default'};
1.6 matthew 1103: next;
1104: }
1.10 matthew 1105: my $test = $defaults->{$attr}->{'test'};
1106: if (! &$test($values->{$attr})) {
1.6 matthew 1107: &Apache::lonxml::warning
1108: ($tag.':'.$attr.': Bad value.'.'Replacing your value with : '
1.11 matthew 1109: .$defaults->{$attr}->{'default'} );
1110: $values->{$attr} = $defaults->{$attr}->{'default'};
1.10 matthew 1111: }
1.2 matthew 1112: }
1.11 matthew 1113: return ;
1.6 matthew 1114: }
1.40 matthew 1115:
1.15 matthew 1116: ##------------------------------------------------------- write_gnuplot_file
1.6 matthew 1117: sub write_gnuplot_file {
1.51 matthew 1118: my ($tmpdir,$filename,$target)= @_;
1.120 albertel 1119: my ($fontsize, $font_properties) = &get_font();
1.6 matthew 1120: my $gnuplot_input = '';
1.10 matthew 1121: my $curve;
1.107 foxr 1122: my $pt = $Apache::lonplot::plot{'texfont'};
1.100 matthew 1123: #
1124: # Check to be sure we do not have any empty curves
1125: my @curvescopy;
1126: foreach my $curve (@curves) {
1127: if (exists($curve->{'function'})) {
1128: if ($curve->{'function'} !~ /^\s*$/) {
1129: push(@curvescopy,$curve);
1130: }
1131: } elsif (exists($curve->{'data'})) {
1132: foreach my $data (@{$curve->{'data'}}) {
1133: if (scalar(@$data) > 0) {
1134: push(@curvescopy,$curve);
1135: last;
1136: }
1137: }
1138: }
1139: }
1140: @curves = @curvescopy;
1.6 matthew 1141: # Collect all the colors
1142: my @Colors;
1.107 foxr 1143: push @Colors, $Apache::lonplot::plot{'bgcolor'};
1144: push @Colors, $Apache::lonplot::plot{'fgcolor'};
1145: push @Colors, (defined($axis{'color'})?$axis{'color'}:$Apache::lonplot::plot{'fgcolor'});
1.9 matthew 1146: foreach $curve (@curves) {
1147: push @Colors, ($curve->{'color'} ne '' ?
1148: $curve->{'color'} :
1.107 foxr 1149: $Apache::lonplot::plot{'fgcolor'} );
1.6 matthew 1150: }
1151: # set term
1.51 matthew 1152: if ($target eq 'web') {
1.120 albertel 1153: $gnuplot_input .= 'set terminal png enhanced nocrop ';
1.107 foxr 1154: $gnuplot_input .= 'transparent ' if ($Apache::lonplot::plot{'transparent'} eq 'on');
1.120 albertel 1155: $gnuplot_input .= 'font "'.$Apache::lonnet::perlvar{'lonFontsDir'}.
1156: '/'.$font_properties->{'file'}.'.ttf" ';
1157: $gnuplot_input .= $fontsize;
1158: $gnuplot_input .= ' size '.$Apache::lonplot::plot{'width'}.','.$Apache::lonplot::plot{'height'}.' ';
1.51 matthew 1159: $gnuplot_input .= "@Colors\n";
1160: # set output
1161: $gnuplot_input .= "set output\n";
1162: } elsif ($target eq 'tex') {
1.120 albertel 1163: $gnuplot_input .= "set term postscript eps enhanced $Apache::lonplot::plot{'plotcolor'} solid ";
1.121 albertel 1164: if (!$font_properties->{'tex_no_file'}) {
1165: $gnuplot_input .=
1166: 'fontfile "'.$Apache::lonnet::perlvar{'lonFontsDir'}.
1167: '/'.$font_properties->{'file'}.'.pfb" ';
1168: }
1.120 albertel 1169: $gnuplot_input .= ' "'.$font_properties->{'printname'}.'" ';
1170: $gnuplot_input .= $fontsize;
1171: $gnuplot_input .= "\nset output \"/home/httpd/perl/tmp/".
1.113 www 1172: &unescape($filename).".eps\"\n";
1.87 matthew 1173: }
1.115 albertel 1174: # cartesian or polar plot?
1.107 foxr 1175: if (lc($Apache::lonplot::plot{'plottype'}) eq 'polar') {
1.87 matthew 1176: $gnuplot_input .= 'set polar'.$/;
1177: } else {
1178: # Assume Cartesian
1.51 matthew 1179: }
1.115 albertel 1180: # cartesian or polar grid?
1181: if (lc($Apache::lonplot::plot{'gridtype'}) eq 'polar') {
1182: $gnuplot_input .= 'set grid polar'.$/;
1.118 albertel 1183: } elsif (lc($Apache::lonplot::plot{'gridtype'}) eq 'linear-log') {
1184: $gnuplot_input .= 'set logscale x'.$/;
1185: } elsif (lc($Apache::lonplot::plot{'gridtype'}) eq 'log-linear') {
1186: $gnuplot_input .= 'set logscale y'.$/;
1187: } elsif (lc($Apache::lonplot::plot{'gridtype'}) eq 'log-log') {
1188: $gnuplot_input .= 'set logscale x'.$/;
1189: $gnuplot_input .= 'set logscale y'.$/;
1.115 albertel 1190: } else {
1191: # Assume Cartesian
1192: }
1.110 albertel 1193: # solid or pattern for boxes?
1194: if (lc($Apache::lonplot::plot{'fillstyle'}) eq 'solid') {
1195: $gnuplot_input .= 'set style fill solid '.
1196: $Apache::lonplot::plot{'solid'}.$Apache::lonplot::plot{'box_border'}.$/;
1197: } elsif (lc($Apache::lonplot::plot{'fillstyle'}) eq 'pattern') {
1198: $gnuplot_input .= 'set style fill pattern '.$Apache::lonplot::plot{'pattern'}.$Apache::lonplot::plot{'box_border'}.$/;
1199: } elsif (lc($Apache::lonplot::plot{'fillstyle'}) eq 'empty') {
1200: }
1.101 matthew 1201: # margin
1.107 foxr 1202: if (lc($Apache::lonplot::plot{'lmargin'}) ne 'default') {
1203: $gnuplot_input .= 'set lmargin '.$Apache::lonplot::plot{'lmargin'}.$/;
1.101 matthew 1204: }
1.107 foxr 1205: if (lc($Apache::lonplot::plot{'rmargin'}) ne 'default') {
1206: $gnuplot_input .= 'set rmargin '.$Apache::lonplot::plot{'rmargin'}.$/;
1.101 matthew 1207: }
1.107 foxr 1208: if (lc($Apache::lonplot::plot{'tmargin'}) ne 'default') {
1209: $gnuplot_input .= 'set tmargin '.$Apache::lonplot::plot{'tmargin'}.$/;
1.101 matthew 1210: }
1.107 foxr 1211: if (lc($Apache::lonplot::plot{'bmargin'}) ne 'default') {
1212: $gnuplot_input .= 'set bmargin '.$Apache::lonplot::plot{'bmargin'}.$/;
1.101 matthew 1213: }
1214: # tic scales
1215: $gnuplot_input .= 'set ticscale '.
1.107 foxr 1216: $Apache::lonplot::plot{'major_ticscale'}.' '.$Apache::lonplot::plot{'minor_ticscale'}.$/;
1.110 albertel 1217: #boxwidth
1218: if (lc($Apache::lonplot::plot{'boxwidth'}) ne '') {
1219: $gnuplot_input .= 'set boxwidth '.$Apache::lonplot::plot{'boxwidth'}.$/;
1220: }
1221: # gridlayer
1222: $gnuplot_input .= 'set grid noxtics noytics front '.$/
1223: if ($Apache::lonplot::plot{'gridlayer'} eq 'on');
1224:
1.7 matthew 1225: # grid
1.107 foxr 1226: $gnuplot_input .= 'set grid'.$/ if ($Apache::lonplot::plot{'grid'} eq 'on');
1.7 matthew 1227: # border
1.107 foxr 1228: $gnuplot_input .= ($Apache::lonplot::plot{'border'} eq 'on'?
1.9 matthew 1229: 'set border'.$/ :
1.67 matthew 1230: 'set noborder'.$/ );
1.77 matthew 1231: # sampling rate for non-data curves
1.107 foxr 1232: $gnuplot_input .= "set samples $Apache::lonplot::plot{'samples'}\n";
1.67 matthew 1233: # title, xlabel, ylabel
1.45 matthew 1234: # titles
1.89 matthew 1235: if ($target eq 'tex') {
1.120 albertel 1236: $gnuplot_input .= "set title \"$title\" font \"".$font_properties->{'printname'}.",".$pt."pt\"\n" if (defined($title)) ;
1237: $gnuplot_input .= "set xlabel \"$xlabel\" font \"".$font_properties->{'printname'}.",".$pt."pt\"\n" if (defined($xlabel));
1238: $gnuplot_input .= "set ylabel \"$ylabel\" font \"".$font_properties->{'printname'}.",".$pt."pt\"\n" if (defined($ylabel));
1.89 matthew 1239: } else {
1.120 albertel 1240: $gnuplot_input .= "set title \"$title\" \n" if (defined($title)) ;
1.89 matthew 1241: $gnuplot_input .= "set xlabel \"$xlabel\" \n" if (defined($xlabel));
1242: $gnuplot_input .= "set ylabel \"$ylabel\" \n" if (defined($ylabel));
1243: }
1.45 matthew 1244: # tics
1245: if (%xtics) {
1246: $gnuplot_input .= "set xtics $xtics{'location'} ";
1.46 matthew 1247: $gnuplot_input .= ( $xtics{'mirror'} eq 'on'?"mirror ":"nomirror ");
1.45 matthew 1248: $gnuplot_input .= "$xtics{'start'}, ";
1249: $gnuplot_input .= "$xtics{'increment'}, ";
1250: $gnuplot_input .= "$xtics{'end'}\n";
1.89 matthew 1251: if ($xtics{'minorfreq'} != 0) {
1252: $gnuplot_input .= "set mxtics ".$xtics{'minorfreq'}."\n";
1253: }
1.45 matthew 1254: }
1255: if (%ytics) {
1256: $gnuplot_input .= "set ytics $ytics{'location'} ";
1.46 matthew 1257: $gnuplot_input .= ( $ytics{'mirror'} eq 'on'?"mirror ":"nomirror ");
1.45 matthew 1258: $gnuplot_input .= "$ytics{'start'}, ";
1259: $gnuplot_input .= "$ytics{'increment'}, ";
1260: $gnuplot_input .= "$ytics{'end'}\n";
1.89 matthew 1261: if ($ytics{'minorfreq'} != 0) {
1262: $gnuplot_input .= "set mytics ".$ytics{'minorfreq'}."\n";
1263: }
1.45 matthew 1264: }
1265: # axis
1.23 matthew 1266: if (%axis) {
1.13 matthew 1267: $gnuplot_input .= "set xrange \[$axis{'xmin'}:$axis{'xmax'}\]\n";
1268: $gnuplot_input .= "set yrange \[$axis{'ymin'}:$axis{'ymax'}\]\n";
1.6 matthew 1269: }
1270: # Key
1.23 matthew 1271: if (%key) {
1.9 matthew 1272: $gnuplot_input .= 'set key '.$key{'pos'}.' ';
1273: if ($key{'title'} ne '') {
1.67 matthew 1274: $gnuplot_input .= 'title "'.$key{'title'}.'" ';
1.11 matthew 1275: }
1276: $gnuplot_input .= ($key{'box'} eq 'on' ? 'box ' : 'nobox ').$/;
1.6 matthew 1277: } else {
1.9 matthew 1278: $gnuplot_input .= 'set nokey'.$/;
1.13 matthew 1279: }
1.6 matthew 1280: # labels
1.10 matthew 1281: my $label;
1.6 matthew 1282: foreach $label (@labels) {
1283: $gnuplot_input .= 'set label "'.$label->{'text'}.'" at '.
1.103 matthew 1284: $label->{'xpos'}.','.$label->{'ypos'}.' '.$label->{'justify'};
1285: if ($target eq 'tex') {
1.120 albertel 1286: $gnuplot_input .=' font "'.$font_properties->{'printname'}.','.$pt.'pt"' ;
1.103 matthew 1287: }
1288: $gnuplot_input .= $/;
1.6 matthew 1289: }
1.74 matthew 1290: if ($target eq 'tex') {
1.107 foxr 1291: $gnuplot_input .="set size 1,".$Apache::lonplot::plot{'height'}/$Apache::lonplot::plot{'width'}*1.38;
1.74 matthew 1292: $gnuplot_input .="\n";
1.120 albertel 1293: }
1.6 matthew 1294: # curves
1295: $gnuplot_input .= 'plot ';
1.9 matthew 1296: for (my $i = 0;$i<=$#curves;$i++) {
1297: $curve = $curves[$i];
1298: $gnuplot_input.= ', ' if ($i > 0);
1.119 albertel 1299: if ($target eq 'tex') {
1300: $curve->{'linewidth'} *= 2;
1301: }
1.6 matthew 1302: if (exists($curve->{'function'})) {
1.9 matthew 1303: $gnuplot_input.=
1304: $curve->{'function'}.' title "'.
1305: $curve->{'name'}.'" with '.
1.72 matthew 1306: $curve->{'linestyle'};
1.119 albertel 1307: $gnuplot_input.= ' linewidth '.$curve->{'linewidth'};
1308:
1.60 matthew 1309: if (($curve->{'linestyle'} eq 'points') ||
1310: ($curve->{'linestyle'} eq 'linespoints') ||
1311: ($curve->{'linestyle'} eq 'errorbars') ||
1312: ($curve->{'linestyle'} eq 'xerrorbars') ||
1313: ($curve->{'linestyle'} eq 'yerrorbars') ||
1314: ($curve->{'linestyle'} eq 'xyerrorbars')) {
1.62 matthew 1315: $gnuplot_input.=' pointtype '.$curve->{'pointtype'};
1.60 matthew 1316: $gnuplot_input.=' pointsize '.$curve->{'pointsize'};
1.110 albertel 1317: } elsif ($curve->{'linestyle'} eq 'filledcurves') {
1318: $gnuplot_input.= ' '.$curve->{'limit'};
1.60 matthew 1319: }
1.6 matthew 1320: } elsif (exists($curve->{'data'})) {
1.40 matthew 1321: # Store data values in $datatext
1322: my $datatext = '';
1323: # get new filename
1.70 matthew 1324: my $datafilename = "$tmpdir/$filename.data.$i";
1.40 matthew 1325: my $fh=Apache::File->new(">$datafilename");
1326: # Compile data
1.6 matthew 1327: my @Data = @{$curve->{'data'}};
1.9 matthew 1328: my @Data0 = @{$Data[0]};
1329: for (my $i =0; $i<=$#Data0; $i++) {
1.10 matthew 1330: my $dataset;
1.6 matthew 1331: foreach $dataset (@Data) {
1.9 matthew 1332: $datatext .= $dataset->[$i] . ' ';
1.6 matthew 1333: }
1.9 matthew 1334: $datatext .= $/;
1.6 matthew 1335: }
1.40 matthew 1336: # write file
1337: print $fh $datatext;
1.119 albertel 1338: close($fh);
1.40 matthew 1339: # generate gnuplot text
1340: $gnuplot_input.= '"'.$datafilename.'" title "'.
1341: $curve->{'name'}.'" with '.
1342: $curve->{'linestyle'};
1.119 albertel 1343: $gnuplot_input.= ' linewidth '.$curve->{'linewidth'};
1.62 matthew 1344: if (($curve->{'linestyle'} eq 'points') ||
1345: ($curve->{'linestyle'} eq 'linespoints') ||
1346: ($curve->{'linestyle'} eq 'errorbars') ||
1347: ($curve->{'linestyle'} eq 'xerrorbars') ||
1348: ($curve->{'linestyle'} eq 'yerrorbars') ||
1349: ($curve->{'linestyle'} eq 'xyerrorbars')) {
1350: $gnuplot_input.=' pointtype '.$curve->{'pointtype'};
1351: $gnuplot_input.=' pointsize '.$curve->{'pointsize'};
1.110 albertel 1352: } elsif ($curve->{'linestyle'} eq 'filledcurves') {
1353: $gnuplot_input.= ' '.$curve->{'limit'};
1.62 matthew 1354: }
1.6 matthew 1355: }
1356: }
1.40 matthew 1357: # Write the output to a file.
1.70 matthew 1358: my $fh=Apache::File->new(">$tmpdir$filename.data");
1.40 matthew 1359: print $fh $gnuplot_input;
1360: close($fh);
1361: # That's all folks.
1362: return ;
1.2 matthew 1363: }
1.21 matthew 1364:
1365: #---------------------------------------------- check_inputs
1366: sub check_inputs {
1367: ## Note: no inputs, no outputs - this acts only on global variables.
1368: ## Make sure we have all the input we need:
1.107 foxr 1369: if (! %Apache::lonplot::plot) { &set_defaults(\%Apache::lonplot::plot,\%gnuplot_defaults); }
1.23 matthew 1370: if (! %key ) {} # No key for this plot, thats okay
1.34 matthew 1371: # if (! %axis) { &set_defaults(\%axis,\%axis_defaults); }
1.21 matthew 1372: if (! defined($title )) {} # No title for this plot, thats okay
1373: if (! defined($xlabel)) {} # No xlabel for this plot, thats okay
1374: if (! defined($ylabel)) {} # No ylabel for this plot, thats okay
1375: if ($#labels < 0) { } # No labels for this plot, thats okay
1376: if ($#curves < 0) {
1377: &Apache::lonxml::warning("No curves specified for plot!!!!");
1378: return '';
1379: }
1380: my $curve;
1381: foreach $curve (@curves) {
1382: if (!defined($curve->{'function'})&&!defined($curve->{'data'})){
1.85 matthew 1383: &Apache::lonxml::warning("One of the curves specified did not contain any curve data or curve function declarations\n");
1.21 matthew 1384: return '';
1385: }
1386: }
1387: }
1388:
1.20 matthew 1389: #------------------------------------------------ make_edit
1390: sub edit_attributes {
1.34 matthew 1391: my ($target,$token,$defaults,$keys) = @_;
1392: my ($result,@keys);
1393: if ($keys && ref($keys) eq 'ARRAY') {
1394: @keys = @$keys;
1395: } else {
1396: @keys = sort(keys(%$defaults));
1397: }
1398: foreach my $attr (@keys) {
1.35 matthew 1399: # append a ' ' to the description if it doesn't have one already.
1400: my $description = $defaults->{$attr}->{'description'};
1401: $description .= ' ' if ($description !~ / $/);
1.20 matthew 1402: if ($defaults->{$attr}->{'edit_type'} eq 'entry') {
1.35 matthew 1403: $result .= &Apache::edit::text_arg
1.38 matthew 1404: ($description,$attr,$token,
1405: $defaults->{$attr}->{'size'});
1.20 matthew 1406: } elsif ($defaults->{$attr}->{'edit_type'} eq 'choice') {
1.102 albertel 1407: $result .= &Apache::edit::select_or_text_arg
1.35 matthew 1408: ($description,$attr,$defaults->{$attr}->{'choices'},$token);
1.45 matthew 1409: } elsif ($defaults->{$attr}->{'edit_type'} eq 'onoff') {
1.102 albertel 1410: $result .= &Apache::edit::select_or_text_arg
1.35 matthew 1411: ($description,$attr,['on','off'],$token);
1.20 matthew 1412: }
1.25 matthew 1413: $result .= '<br />';
1.20 matthew 1414: }
1415: return $result;
1416: }
1.1 matthew 1417:
1.21 matthew 1418:
1419: ###################################################################
1420: ## ##
1421: ## Insertion functions for editing plots ##
1422: ## ##
1423: ###################################################################
1424:
1.47 matthew 1425: sub insert_gnuplot {
1.29 matthew 1426: my $result = '';
1.20 matthew 1427: # plot attributes
1.61 matthew 1428: $result .= "\n<gnuplot ";
1.47 matthew 1429: foreach my $attr (keys(%gnuplot_defaults)) {
1.61 matthew 1430: $result .= "\n $attr=\"$gnuplot_defaults{$attr}->{'default'}\"";
1.20 matthew 1431: }
1.61 matthew 1432: $result .= ">";
1.47 matthew 1433: # Add the components (most are commented out for simplicity)
1.44 matthew 1434: # $result .= &insert_key();
1435: # $result .= &insert_axis();
1436: # $result .= &insert_title();
1437: # $result .= &insert_xlabel();
1438: # $result .= &insert_ylabel();
1.20 matthew 1439: $result .= &insert_curve();
1.50 matthew 1440: # close up the <gnuplot>
1.61 matthew 1441: $result .= "\n</gnuplot>";
1.45 matthew 1442: return $result;
1443: }
1444:
1.46 matthew 1445: sub insert_tics {
1446: my $result;
1447: $result .= &insert_xtics() . &insert_ytics;
1448: return $result;
1449: }
1450:
1.45 matthew 1451: sub insert_xtics {
1452: my $result;
1.46 matthew 1453: $result .= "\n <xtics ";
1.45 matthew 1454: foreach my $attr (keys(%tic_defaults)) {
1.61 matthew 1455: $result .= "\n $attr=\"$tic_defaults{$attr}->{'default'}\" ";
1.45 matthew 1456: }
1.61 matthew 1457: $result .= "/>";
1.45 matthew 1458: return $result;
1459: }
1460:
1461: sub insert_ytics {
1462: my $result;
1.46 matthew 1463: $result .= "\n <ytics ";
1.45 matthew 1464: foreach my $attr (keys(%tic_defaults)) {
1.61 matthew 1465: $result .= "\n $attr=\"$tic_defaults{$attr}->{'default'}\" ";
1.45 matthew 1466: }
1.61 matthew 1467: $result .= "/>";
1.20 matthew 1468: return $result;
1469: }
1470:
1471: sub insert_key {
1472: my $result;
1.61 matthew 1473: $result .= "\n <key ";
1.30 matthew 1474: foreach my $attr (keys(%key_defaults)) {
1.61 matthew 1475: $result .= "\n $attr=\"$key_defaults{$attr}->{'default'}\"";
1.20 matthew 1476: }
1.61 matthew 1477: $result .= " />";
1.20 matthew 1478: return $result;
1479: }
1480:
1481: sub insert_axis{
1482: my $result;
1.46 matthew 1483: $result .= "\n <axis ";
1.30 matthew 1484: foreach my $attr (keys(%axis_defaults)) {
1.61 matthew 1485: $result .= "\n $attr=\"$axis_defaults{$attr}->{'default'}\"";
1.20 matthew 1486: }
1.61 matthew 1487: $result .= " />";
1.20 matthew 1488: return $result;
1489: }
1.28 matthew 1490:
1.61 matthew 1491: sub insert_title { return "\n <title></title>"; }
1492: sub insert_xlabel { return "\n <xlabel></xlabel>"; }
1493: sub insert_ylabel { return "\n <ylabel></ylabel>"; }
1.20 matthew 1494:
1495: sub insert_label {
1496: my $result;
1.46 matthew 1497: $result .= "\n <label ";
1.30 matthew 1498: foreach my $attr (keys(%label_defaults)) {
1.61 matthew 1499: $result .= "\n $attr=\"".
1500: $label_defaults{$attr}->{'default'}."\"";
1.20 matthew 1501: }
1.61 matthew 1502: $result .= "></label>";
1.20 matthew 1503: return $result;
1504: }
1505:
1506: sub insert_curve {
1507: my $result;
1.41 matthew 1508: $result .= "\n <curve ";
1.30 matthew 1509: foreach my $attr (keys(%curve_defaults)) {
1.61 matthew 1510: $result .= "\n $attr=\"".
1511: $curve_defaults{$attr}->{'default'}."\"";
1.20 matthew 1512: }
1.61 matthew 1513: $result .= " >";
1514: $result .= &insert_data().&insert_data()."\n </curve>";
1.20 matthew 1515: }
1.4 matthew 1516:
1.20 matthew 1517: sub insert_function {
1518: my $result;
1.61 matthew 1519: $result .= "\n <function></function>";
1.20 matthew 1520: return $result;
1521: }
1.4 matthew 1522:
1.20 matthew 1523: sub insert_data {
1524: my $result;
1.61 matthew 1525: $result .= "\n <data></data>";
1.20 matthew 1526: return $result;
1527: }
1.4 matthew 1528:
1.48 matthew 1529: ##----------------------------------------------------------------------
1.20 matthew 1530: 1;
1531: __END__
1.4 matthew 1532:
1533:
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