Annotation of loncom/xml/lonplot.pm, revision 1.133
1.1 matthew 1: # The LearningOnline Network with CAPA
2: # Dynamic plot
3: #
1.133 ! albertel 4: # $Id: lonplot.pm,v 1.132 2007/12/05 23:22:18 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 LONCAPA;
40:
1.10 matthew 41:
1.129 albertel 42: use vars qw/$weboutputformat $version/;
1.97 matthew 43:
1.109 foxr 44:
1.108 foxr 45:
1.33 harris41 46: BEGIN {
1.97 matthew 47: &Apache::lonxml::register('Apache::lonplot',('gnuplot'));
48: #
49: # Determine the version of GNUPLOT
50: $weboutputformat = 'gif';
1.129 albertel 51: my $versionstring = `gnuplot --version 2>/dev/null`;
52: ($version) = ($versionstring =~ /^gnuplot ([\d.]+)/);
53: if ($version >= 4) {
1.97 matthew 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 =
1.123 albertel 130: qw/alttag bgcolor fgcolor height width texwidth fontface font texfont
131: transparent grid samples
132: border align plotcolor plottype gridtype lmargin rmargin
1.115 albertel 133: tmargin bmargin major_ticscale minor_ticscale boxwidth gridlayer fillstyle
1.110 albertel 134: pattern solid/;
1.101 matthew 135:
1.105 matthew 136: my $margin_choices = ['default',0..20];
1.48 matthew 137:
1.47 matthew 138: my %gnuplot_defaults =
1.1 matthew 139: (
1.64 matthew 140: alttag => {
141: default => 'dynamically generated plot',
142: test => $words_test,
1.120 albertel 143: description => 'Brief description of the plot',
1.64 matthew 144: edit_type => 'entry',
145: size => '40'
146: },
1.20 matthew 147: height => {
1.65 matthew 148: default => 300,
1.20 matthew 149: test => $int_test,
1.120 albertel 150: description => 'Height of image (pixels)',
1.38 matthew 151: edit_type => 'entry',
152: size => '10'
1.20 matthew 153: },
154: width => {
1.65 matthew 155: default => 400,
1.20 matthew 156: test => $int_test,
1.120 albertel 157: description => 'Width of image (pixels)',
1.38 matthew 158: edit_type => 'entry',
159: size => '10'
1.20 matthew 160: },
161: bgcolor => {
162: default => 'xffffff',
163: test => $color_test,
1.120 albertel 164: description => 'Background color of image (xffffff)',
1.38 matthew 165: edit_type => 'entry',
166: size => '10'
1.20 matthew 167: },
168: fgcolor => {
169: default => 'x000000',
170: test => $color_test,
1.120 albertel 171: description => 'Foreground color of image (x000000)',
1.38 matthew 172: edit_type => 'entry',
173: size => '10'
1.20 matthew 174: },
175: transparent => {
176: default => 'off',
177: test => $onoff_test,
1.34 matthew 178: description => 'Transparent image',
1.45 matthew 179: edit_type => 'onoff'
1.20 matthew 180: },
181: grid => {
1.65 matthew 182: default => 'on',
1.20 matthew 183: test => $onoff_test,
1.34 matthew 184: description => 'Display grid',
1.45 matthew 185: edit_type => 'onoff'
1.20 matthew 186: },
1.110 albertel 187: gridlayer => {
188: default => 'off',
189: test => $onoff_test,
190: description => 'Display grid front layer over filled boxes or filled curves',
191: edit_type => 'onoff'
192: },
193: box_border => {
194: default => 'noborder',
195: test => sub {$_[0]=~/^(noborder|border)$/},
196: description => 'Draw border for boxes',
197: edit_type => 'choice',
198: choices => ['border','noborder']
199: },
1.20 matthew 200: border => {
201: default => 'on',
202: test => $onoff_test,
1.34 matthew 203: description => 'Draw border around plot',
1.45 matthew 204: edit_type => 'onoff'
1.20 matthew 205: },
206: font => {
1.119 albertel 207: default => '9',
1.20 matthew 208: test => $sml_test,
1.125 albertel 209: description => 'Font size to use in web output (pts)',
1.20 matthew 210: edit_type => 'choice',
1.126 albertel 211: choices => [['5','5 (small)'],'6','7','8',['9','9 (medium)'],'10',['11','11 (large)'],'12','15']
1.20 matthew 212: },
1.120 albertel 213: fontface => {
214: default => 'sans-serif',
215: test => sub {$_[0]=~/^(sans-serif|serif|classic)$/},
216: description => 'Type of font to use',
217: edit_type => 'choice',
218: choices => ['sans-serif','serif', 'classic']
219: },
1.110 albertel 220: samples => {
1.77 matthew 221: default => '100',
222: test => $int_test,
223: description => 'Number of samples for non-data plots',
224: edit_type => 'choice',
225: choices => ['100','200','500','1000','2000','5000']
226: },
1.20 matthew 227: align => {
1.116 albertel 228: default => 'middle',
229: test => sub {$_[0]=~/^(left|right|middle|center)$/},
1.120 albertel 230: description => 'Alignment for image in HTML',
1.20 matthew 231: edit_type => 'choice',
1.116 albertel 232: choices => ['left','right','middle']
1.82 matthew 233: },
234: texwidth => {
235: default => '93',
236: test => $int_test,
237: description => 'Width of plot when printed (mm)',
238: edit_type => 'entry',
239: size => '5'
240: },
1.110 albertel 241: texfont => {
1.92 matthew 242: default => '22',
243: test => $int_test,
244: description => 'Font size to use in TeX output (pts):',
245: edit_type => 'choice',
1.96 matthew 246: choices => [qw/8 10 12 14 16 18 20 22 24 26 28 30 32 34 36/],
1.92 matthew 247: },
1.110 albertel 248: plotcolor => {
1.105 matthew 249: default => 'monochrome',
250: test => sub {$_[0]=~/^(monochrome|color|colour)$/},
251: description => 'Color setting for printing:',
252: edit_type => 'choice',
253: choices => [qw/monochrome color colour/],
254: },
1.110 albertel 255: pattern => {
256: default => '',
257: test => $int_test,
1.120 albertel 258: description => 'Pattern value for boxes:',
1.110 albertel 259: edit_type => 'choice',
260: choices => [0,1,2,3,4,5,6]
261: },
262: solid => {
263: default => 0,
264: test => $real_test,
265: description => 'The density of fill style for boxes',
266: edit_type => 'entry',
267: size => '5'
268: },
269: fillstyle => {
270: default => 'empty',
271: test => sub {$_[0]=~/^(empty|solid|pattern)$/},
272: description => 'Filled style for boxes:',
273: edit_type => 'choice',
274: choices => ['empty','solid','pattern']
275: },
276: plottype => {
1.87 matthew 277: default => 'Cartesian',
278: test => sub {$_[0]=~/^(Polar|Cartesian)$/},
279: description => 'Plot type:',
280: edit_type => 'choice',
1.94 matthew 281: choices => ['Cartesian','Polar']
1.87 matthew 282: },
1.115 albertel 283: gridtype => {
284: default => 'Cartesian',
1.118 albertel 285: test => sub {$_[0]=~/^(Polar|Cartesian|Linear-Log|Log-Linear|Log-Log)$/},
1.115 albertel 286: description => 'Grid type:',
287: edit_type => 'choice',
1.118 albertel 288: choices => ['Cartesian','Polar','Linear-Log','Log-Linear','Log-Log']
1.115 albertel 289: },
1.110 albertel 290: lmargin => {
1.101 matthew 291: default => 'default',
292: test => sub {$_[0]=~/^(default|\d+)$/},
293: description => 'Left margin width (pts):',
294: edit_type => 'choice',
295: choices => $margin_choices,
296: },
1.110 albertel 297: rmargin => {
1.101 matthew 298: default => 'default',
299: test => sub {$_[0]=~/^(default|\d+)$/},
300: description => 'Right margin width (pts):',
301: edit_type => 'choice',
302: choices => $margin_choices,
303: },
1.110 albertel 304: tmargin => {
1.101 matthew 305: default => 'default',
306: test => sub {$_[0]=~/^(default|\d+)$/},
307: description => 'Top margin width (pts):',
308: edit_type => 'choice',
309: choices => $margin_choices,
310: },
1.110 albertel 311: bmargin => {
1.101 matthew 312: default => 'default',
313: test => sub {$_[0]=~/^(default|\d+)$/},
1.104 www 314: description => 'Bottom margin width (pts):',
1.101 matthew 315: edit_type => 'choice',
316: choices => $margin_choices,
317: },
1.110 albertel 318: boxwidth => {
319: default => '',
320: test => $real_test,
1.120 albertel 321: description => 'Width of boxes, default is auto',
1.110 albertel 322: edit_type => 'entry',
323: size => '5'
324: },
1.101 matthew 325: major_ticscale => {
326: default => '1',
327: test => $real_test,
328: description => 'Size of major tic marks (plot coordinates)',
329: edit_type => 'entry',
330: size => '5'
331: },
332: minor_ticscale => {
333: default => '0.5',
334: test => $real_test,
335: description => 'Size of minor tic mark (plot coordinates)',
336: edit_type => 'entry',
337: size => '5'
338: },
1.1 matthew 339: );
340:
341: my %key_defaults =
342: (
1.20 matthew 343: title => {
344: default => '',
345: test => $words_test,
346: description => 'Title of key',
1.38 matthew 347: edit_type => 'entry',
348: size => '40'
1.20 matthew 349: },
350: box => {
351: default => 'off',
352: test => $onoff_test,
353: description => 'Draw a box around the key?',
1.45 matthew 354: edit_type => 'onoff'
1.20 matthew 355: },
356: pos => {
357: default => 'top right',
358: test => $key_pos_test,
1.120 albertel 359: description => 'Position of the key on the plot',
1.20 matthew 360: edit_type => 'choice',
361: choices => ['top left','top right','bottom left','bottom right',
362: 'outside','below']
363: }
1.1 matthew 364: );
365:
366: my %label_defaults =
367: (
1.20 matthew 368: xpos => {
369: default => 0,
370: test => $real_test,
1.120 albertel 371: description => 'X position of label (graph coordinates)',
1.38 matthew 372: edit_type => 'entry',
373: size => '10'
1.20 matthew 374: },
375: ypos => {
376: default => 0,
377: test => $real_test,
1.120 albertel 378: description => 'Y position of label (graph coordinates)',
1.38 matthew 379: edit_type => 'entry',
380: size => '10'
1.20 matthew 381: },
382: justify => {
383: default => 'left',
384: test => sub {$_[0]=~/^(left|right|center)$/},
385: description => 'justification of the label text on the plot',
386: edit_type => 'choice',
387: choices => ['left','right','center']
388: }
1.1 matthew 389: );
390:
1.89 matthew 391: my @tic_edit_order = ('location','mirror','start','increment','end',
392: 'minorfreq');
1.45 matthew 393: my %tic_defaults =
394: (
395: location => {
396: default => 'border',
397: test => sub {$_[0]=~/^(border|axis)$/},
1.90 matthew 398: description => 'Location of major tic marks',
1.45 matthew 399: edit_type => 'choice',
400: choices => ['border','axis']
401: },
402: mirror => {
403: default => 'on',
404: test => $onoff_test,
1.120 albertel 405: description => 'Mirror tics on opposite axis?',
1.45 matthew 406: edit_type => 'onoff'
407: },
408: start => {
409: default => '-10.0',
410: test => $real_test,
1.90 matthew 411: description => 'Start major tics at',
1.45 matthew 412: edit_type => 'entry',
413: size => '10'
414: },
415: increment => {
416: default => '1.0',
417: test => $real_test,
1.90 matthew 418: description => 'Place a major tic every',
1.45 matthew 419: edit_type => 'entry',
420: size => '10'
421: },
422: end => {
423: default => ' 10.0',
424: test => $real_test,
1.90 matthew 425: description => 'Stop major tics at ',
1.45 matthew 426: edit_type => 'entry',
427: size => '10'
428: },
1.89 matthew 429: minorfreq => {
430: default => '0',
431: test => $int_test,
1.98 matthew 432: description => 'Number of minor tics per major tic mark',
1.89 matthew 433: edit_type => 'entry',
434: size => '10'
435: },
1.45 matthew 436: );
437:
1.132 albertel 438: my @axis_edit_order = ('color','xmin','xmax','ymin','ymax','xformat', 'yformat');
1.1 matthew 439: my %axis_defaults =
440: (
1.28 matthew 441: color => {
1.20 matthew 442: default => 'x000000',
443: test => $color_test,
1.120 albertel 444: description => 'Color of grid lines (x000000)',
1.38 matthew 445: edit_type => 'entry',
446: size => '10'
1.20 matthew 447: },
448: xmin => {
449: default => '-10.0',
450: test => $real_test,
1.120 albertel 451: description => 'Minimum x-value shown in plot',
1.38 matthew 452: edit_type => 'entry',
453: size => '10'
1.20 matthew 454: },
455: xmax => {
456: default => ' 10.0',
457: test => $real_test,
1.120 albertel 458: description => 'Maximum x-value shown in plot',
1.38 matthew 459: edit_type => 'entry',
460: size => '10'
1.20 matthew 461: },
462: ymin => {
463: default => '-10.0',
464: test => $real_test,
1.120 albertel 465: description => 'Minimum y-value shown in plot',
1.38 matthew 466: edit_type => 'entry',
467: size => '10'
1.20 matthew 468: },
469: ymax => {
470: default => ' 10.0',
471: test => $real_test,
1.120 albertel 472: description => 'Maximum y-value shown in plot',
1.38 matthew 473: edit_type => 'entry',
474: size => '10'
1.132 albertel 475: },
476: xformat => {
477: default => 'on',
478: test => sub {$_[0]=~/^(on|off|\d+(f|F|e|E))$/},
479: description => 'X-axis number formatting',
480: edit_type => 'choice',
481: choices => ['on', 'off', '2e', '2f'],
482: },
483: yformat => {
484: default => 'on',
485: test => sub {$_[0]=~/^(on|off|\d+(f|F|e|E))$/},
486: description => 'X-axis number formatting',
487: edit_type => 'choice',
488: choices => ['on', 'off', '2e', '2f'],
489: },
490:
1.1 matthew 491: );
492:
1.119 albertel 493: my @curve_edit_order = ('color','name','linestyle','linewidth','pointtype','pointsize','limit');
1.60 matthew 494:
1.1 matthew 495: my %curve_defaults =
496: (
1.20 matthew 497: color => {
498: default => 'x000000',
499: test => $color_test,
1.120 albertel 500: description => 'Color of curve (x000000)',
1.38 matthew 501: edit_type => 'entry',
502: size => '10'
1.20 matthew 503: },
504: name => {
505: default => '',
506: test => $words_test,
1.120 albertel 507: description => 'Name of curve to appear in key',
1.38 matthew 508: edit_type => 'entry',
509: size => '20'
1.20 matthew 510: },
511: linestyle => {
512: default => 'lines',
513: test => $linestyle_test,
1.35 matthew 514: description => 'Line style',
1.20 matthew 515: edit_type => 'choice',
1.38 matthew 516: choices => [keys(%linestyles)]
1.60 matthew 517: },
1.119 albertel 518: linewidth => {
1.130 albertel 519: default => 1,
1.119 albertel 520: test => $int_test,
521: description => 'Line width (may not apply to all line styles)',
522: edit_type => 'choice',
523: choices => [1,2,3,4,5,6,7,8,9,10]
524: },
1.60 matthew 525: pointsize => {
526: default => 1,
1.62 matthew 527: test => $pos_real_test,
1.120 albertel 528: description => 'Point size (may not apply to all line styles)',
1.62 matthew 529: edit_type => 'entry',
530: size => '5'
531: },
532: pointtype => {
533: default => 1,
1.60 matthew 534: test => $int_test,
1.120 albertel 535: description => 'Point type (may not apply to all line styles)',
1.60 matthew 536: edit_type => 'choice',
1.62 matthew 537: choices => [0,1,2,3,4,5,6]
1.110 albertel 538: },
539: limit => {
540: default => 'closed',
541: test => sub {$_[0]=~/^(closed|x1|x2|y1|y2)$/},
1.120 albertel 542: description => 'Point to fill -- for filledcurves',
1.110 albertel 543: edit_type => 'choice',
544: choices => ['closed','x1','x2','y1','y2']
545: },
1.1 matthew 546: );
547:
1.21 matthew 548: ###################################################################
549: ## ##
550: ## parsing and edit rendering ##
551: ## ##
552: ###################################################################
1.107 foxr 553:
554: undef %Apache::lonplot::plot;
555: my (%key,%axis,$title,$xlabel,$ylabel,@labels,@curves,%xtics,%ytics);
1.1 matthew 556:
1.47 matthew 557: sub start_gnuplot {
1.107 foxr 558: undef(%Apache::lonplot::plot); undef(%key); undef(%axis);
1.89 matthew 559: undef($title); undef($xlabel); undef($ylabel);
560: undef(@labels); undef(@curves);
561: undef(%xtics); undef(%ytics);
1.6 matthew 562: #
1.1 matthew 563: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
564: my $result='';
1.25 matthew 565: &Apache::lonxml::register('Apache::lonplot',
1.45 matthew 566: ('title','xlabel','ylabel','key','axis','label','curve',
567: 'xtics','ytics'));
1.29 matthew 568: push (@Apache::lonxml::namespace,'lonplot');
1.51 matthew 569: if ($target eq 'web' || $target eq 'tex') {
1.107 foxr 570: &get_attributes(\%Apache::lonplot::plot,\%gnuplot_defaults,$parstack,$safeeval,
1.17 matthew 571: $tagstack->[-1]);
1.20 matthew 572: } elsif ($target eq 'edit') {
1.47 matthew 573: $result .= &Apache::edit::tag_start($target,$token,'GnuPlot');
574: $result .= &edit_attributes($target,$token,\%gnuplot_defaults,
1.116 albertel 575: \@gnuplot_edit_order)
576: .&Apache::edit::end_row()
577: .&Apache::edit::start_spanning_row();
1.20 matthew 578: } elsif ($target eq 'modified') {
579: my $constructtag=&Apache::edit::get_new_args
1.47 matthew 580: ($token,$parstack,$safeeval,keys(%gnuplot_defaults));
1.20 matthew 581: if ($constructtag) {
582: $result = &Apache::edit::rebuild_tag($token);
583: }
1.4 matthew 584: }
1.21 matthew 585: return $result;
1.1 matthew 586: }
587:
1.47 matthew 588: sub end_gnuplot {
1.1 matthew 589: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
590: pop @Apache::lonxml::namespace;
1.4 matthew 591: &Apache::lonxml::deregister('Apache::lonplot',
592: ('title','xlabel','ylabel','key','axis','label','curve'));
593: my $result = '';
1.56 albertel 594: my $randnumber;
595: # need to call rand everytime start_script would evaluate, as the
596: # safe space rand number generator and the global rand generator
1.95 www 597: # are not separate
1.56 albertel 598: if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
599: $target eq 'answer') {
600: $randnumber=int(rand(1000));
601: }
1.51 matthew 602: if ($target eq 'web' || $target eq 'tex') {
1.21 matthew 603: &check_inputs(); # Make sure we have all the data we need
1.13 matthew 604: ##
605: ## Determine filename
1.4 matthew 606: my $tmpdir = '/home/httpd/perl/tmp/';
1.106 albertel 607: my $filename = $env{'user.name'}.'_'.$env{'user.domain'}.
1.69 matthew 608: '_'.time.'_'.$$.$randnumber.'_plot';
1.4 matthew 609: ## Write the plot description to the file
1.51 matthew 610: &write_gnuplot_file($tmpdir,$filename,$target);
1.113 www 611: $filename = &escape($filename);
1.4 matthew 612: ## return image tag for the plot
1.51 matthew 613: if ($target eq 'web') {
614: $result .= <<"ENDIMAGE";
1.114 albertel 615: <img src = "/cgi-bin/plot.$weboutputformat?file=$filename.data"
1.107 foxr 616: width = "$Apache::lonplot::plot{'width'}"
617: height = "$Apache::lonplot::plot{'height'}"
618: align = "$Apache::lonplot::plot{'align'}"
619: alt = "$Apache::lonplot::plot{'alttag'}" />
1.12 matthew 620: ENDIMAGE
1.51 matthew 621: } elsif ($target eq 'tex') {
1.107 foxr 622: &Apache::lonxml::debug(" gnuplot wid = $Apache::lonplot::plot{'width'}");
623: &Apache::lonxml::debug(" gnuplot ht = $Apache::lonplot::plot{'height'}");
1.91 albertel 624: #might be inside the safe space, register the URL for later
625: &Apache::lonxml::register_ssi("/cgi-bin/plot.gif?file=$filename.data&output=eps");
1.111 albertel 626: $result = "%DYNAMICIMAGE:$Apache::lonplot::plot{'width'}:$Apache::lonplot::plot{'height'}:$Apache::lonplot::plot{'texwidth'}\n";
1.109 foxr 627: $result .= '\graphicspath{{/home/httpd/perl/tmp/}}'."\n";
1.113 www 628: $result .= '\includegraphics[width='.$Apache::lonplot::plot{'texwidth'}.' mm]{'.&unescape($filename).'.eps}';
1.51 matthew 629: }
1.20 matthew 630: } elsif ($target eq 'edit') {
1.21 matthew 631: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 632: }
1.1 matthew 633: return $result;
634: }
1.2 matthew 635:
1.45 matthew 636:
637: ##--------------------------------------------------------------- xtics
638: sub start_xtics {
639: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
640: my $result='';
1.51 matthew 641: if ($target eq 'web' || $target eq 'tex') {
1.45 matthew 642: &get_attributes(\%xtics,\%tic_defaults,$parstack,$safeeval,
643: $tagstack->[-1]);
644: } elsif ($target eq 'edit') {
645: $result .= &Apache::edit::tag_start($target,$token,'xtics');
646: $result .= &edit_attributes($target,$token,\%tic_defaults,
647: \@tic_edit_order);
648: } elsif ($target eq 'modified') {
649: my $constructtag=&Apache::edit::get_new_args
650: ($token,$parstack,$safeeval,keys(%tic_defaults));
651: if ($constructtag) {
652: $result = &Apache::edit::rebuild_tag($token);
653: }
654: }
655: return $result;
656: }
657:
658: sub end_xtics {
659: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
660: my $result = '';
1.51 matthew 661: if ($target eq 'web' || $target eq 'tex') {
1.45 matthew 662: } elsif ($target eq 'edit') {
663: $result.=&Apache::edit::tag_end($target,$token);
664: }
665: return $result;
666: }
667:
668: ##--------------------------------------------------------------- ytics
669: sub start_ytics {
670: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
671: my $result='';
1.51 matthew 672: if ($target eq 'web' || $target eq 'tex') {
1.45 matthew 673: &get_attributes(\%ytics,\%tic_defaults,$parstack,$safeeval,
674: $tagstack->[-1]);
675: } elsif ($target eq 'edit') {
676: $result .= &Apache::edit::tag_start($target,$token,'ytics');
677: $result .= &edit_attributes($target,$token,\%tic_defaults,
678: \@tic_edit_order);
679: } elsif ($target eq 'modified') {
680: my $constructtag=&Apache::edit::get_new_args
681: ($token,$parstack,$safeeval,keys(%tic_defaults));
682: if ($constructtag) {
683: $result = &Apache::edit::rebuild_tag($token);
684: }
685: }
686: return $result;
687: }
688:
689: sub end_ytics {
690: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
691: my $result = '';
1.51 matthew 692: if ($target eq 'web' || $target eq 'tex') {
1.45 matthew 693: } elsif ($target eq 'edit') {
694: $result.=&Apache::edit::tag_end($target,$token);
695: }
696: return $result;
697: }
698:
1.119 albertel 699: ##-----------------------------------------------------------------font
1.120 albertel 700: my %font_properties =
701: (
702: 'classic' => {
703: face => 'classic',
704: file => 'DejaVuSansMono-Bold',
705: printname => 'Helvetica',
1.121 albertel 706: tex_no_file => 1,
1.120 albertel 707: },
708: 'sans-serif' => {
709: face => 'sans-serif',
710: file => 'DejaVuSans',
711: printname => 'DejaVuSans',
712: },
713: 'serif' => {
714: face => 'serif',
715: file => 'DejaVuSerif',
716: printname => 'DejaVuSerif',
717: },
718: );
719:
1.119 albertel 720: sub get_font {
1.124 albertel 721: my ($target) = @_;
1.120 albertel 722: my ($size, $selected_font);
723:
1.119 albertel 724: if ( $Apache::lonplot::plot{'font'} =~ /^(small|medium|large)/) {
1.120 albertel 725: $selected_font = $font_properties{'classic'};
1.119 albertel 726: if ( $Apache::lonplot::plot{'font'} eq 'small') {
727: $size = '5';
728: } elsif ( $Apache::lonplot::plot{'font'} eq 'medium') {
729: $size = '9';
730: } elsif ( $Apache::lonplot::plot{'font'} eq 'large') {
1.126 albertel 731: $size = '11';
1.119 albertel 732: } else {
733: $size = '9';
734: }
735: } else {
1.122 albertel 736: $size = $Apache::lonplot::plot{'font'};
1.120 albertel 737: $selected_font = $font_properties{$Apache::lonplot::plot{'fontface'}};
1.119 albertel 738: }
1.124 albertel 739: if ($target eq 'tex' && defined($Apache::lonplot::plot{'texfont'})) {
740: $size = $Apache::lonplot::plot{'texfont'};
741: }
1.120 albertel 742: return ($size, $selected_font);
1.119 albertel 743: }
1.45 matthew 744:
1.1 matthew 745: ##----------------------------------------------------------------- key
746: sub start_key {
747: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
748: my $result='';
1.51 matthew 749: if ($target eq 'web' || $target eq 'tex') {
1.17 matthew 750: &get_attributes(\%key,\%key_defaults,$parstack,$safeeval,
1.11 matthew 751: $tagstack->[-1]);
1.20 matthew 752: } elsif ($target eq 'edit') {
1.25 matthew 753: $result .= &Apache::edit::tag_start($target,$token,'Plot Key');
1.21 matthew 754: $result .= &edit_attributes($target,$token,\%key_defaults);
1.20 matthew 755: } elsif ($target eq 'modified') {
756: my $constructtag=&Apache::edit::get_new_args
1.24 matthew 757: ($token,$parstack,$safeeval,keys(%key_defaults));
1.20 matthew 758: if ($constructtag) {
759: $result = &Apache::edit::rebuild_tag($token);
760: }
1.4 matthew 761: }
1.1 matthew 762: return $result;
763: }
764:
765: sub end_key {
766: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
767: my $result = '';
1.51 matthew 768: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 769: } elsif ($target eq 'edit') {
1.21 matthew 770: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 771: }
1.1 matthew 772: return $result;
773: }
1.21 matthew 774:
1.128 albertel 775: sub parse_label {
776: my ($target,$text) = @_;
777: my $parser=HTML::LCParser->new(\$text);
778: my $result;
779: while (my $token=$parser->get_token) {
780: if ($token->[0] eq 'S') {
781: if ($token->[1] eq 'sub') {
782: $result .= '_{';
783: } elsif ($token->[1] eq 'sup') {
784: $result .= '^{';
785: } else {
786: $result .= $token->[4];
787: }
788: } elsif ($token->[0] eq 'E') {
789: if ($token->[1] eq 'sub'
790: || $token->[1] eq 'sup') {
791: $result .= '}';
792: } else {
793: $result .= $token->[2];
794: }
795: } elsif ($token->[0] eq 'T') {
796: $result .= &replace_entities($target,$token->[1]);
797: }
798: }
799: return $result;
800: }
801:
802:
803: my %lookup =
1.133 ! albertel 804: ('(Alpha|#913)' => {'tex' => '{/Symbol A}', 'web' => "\x{391}"},
! 805: '(Beta|#914)' => {'tex' => '{/Symbol B}', 'web' => "\x{392}"},
! 806: '(Chi|#935)' => {'tex' => '{/Symbol C}', 'web' => "\x{3A7}"},
! 807: '(Delta|#916)' => {'tex' => '{/Symbol D}', 'web' => "\x{394}"},
! 808: '(Epsilon|#917)' => {'tex' => '{/Symbol E}', 'web' => "\x{395}"},
! 809: '(Phi|#934)' => {'tex' => '{/Symbol F}', 'web' => "\x{3A6}"},
! 810: '(Gamma|#915)' => {'tex' => '{/Symbol G}', 'web' => "\x{393}"},
! 811: '(Eta|#919)' => {'tex' => '{/Symbol H}', 'web' => "\x{397}"},
! 812: '(Iota|#921)' => {'tex' => '{/Symbol I}', 'web' => "\x{399}"},
! 813: '(Kappa|#922)' => {'tex' => '{/Symbol K}', 'web' => "\x{39A}"},
! 814: '(Lambda|#923)' => {'tex' => '{/Symbol L}', 'web' => "\x{39B}"},
! 815: '(Mu|#924)' => {'tex' => '{/Symbol M}', 'web' => "\x{39C}"},
! 816: '(Nu|#925)' => {'tex' => '{/Symbol N}', 'web' => "\x{39D}"},
! 817: '(Omicron|#927)' => {'tex' => '{/Symbol O}', 'web' => "\x{39F}"},
! 818: '(Pi|#928)' => {'tex' => '{/Symbol P}', 'web' => "\x{3A0}"},
! 819: '(Theta|#920)' => {'tex' => '{/Symbol Q}', 'web' => "\x{398}"},
! 820: '(Rho|#929)' => {'tex' => '{/Symbol R}', 'web' => "\x{3A1}"},
! 821: '(Sigma|#931)' => {'tex' => '{/Symbol S}', 'web' => "\x{3A3}"},
! 822: '(Tau|#932)' => {'tex' => '{/Symbol T}', 'web' => "\x{3A4}"},
! 823: '(Upsilon|#933)' => {'tex' => '{/Symbol U}', 'web' => "\x{3A5}"},
! 824: '(Omega|#937)' => {'tex' => '{/Symbol W}', 'web' => "\x{3A9}"},
! 825: '(Xi|#926)' => {'tex' => '{/Symbol X}', 'web' => "\x{39E}"},
! 826: '(Psi|#936)' => {'tex' => '{/Symbol Y}', 'web' => "\x{3A8}"},
! 827: '(Zeta|#918)' => {'tex' => '{/Symbol Z}', 'web' => "\x{396}"},
! 828: '(alpha|#945)' => {'tex' => '{/Symbol a}', 'web' => "\x{3B1}"},
! 829: '(beta|#946)' => {'tex' => '{/Symbol b}', 'web' => "\x{3B2}"},
! 830: '(chi|#967)' => {'tex' => '{/Symbol c}', 'web' => "\x{3C7}"},
! 831: '(delta|#948)' => {'tex' => '{/Symbol d}', 'web' => "\x{3B4}"},
! 832: '(epsilon|#949)' => {'tex' => '{/Symbol e}', 'web' => "\x{3B5}"},
! 833: '(phi|#966)' => {'tex' => '{/Symbol f}', 'web' => "\x{3C6}"},
! 834: '(gamma|#947)' => {'tex' => '{/Symbol g}', 'web' => "\x{3B3}"},
! 835: '(eta|#951)' => {'tex' => '{/Symbol h}', 'web' => "\x{3B7}"},
! 836: '(iota|#953)' => {'tex' => '{/Symbol i}', 'web' => "\x{3B9}"},
! 837: '(kappa|#954)' => {'tex' => '{/Symbol k}', 'web' => "\x{3BA}"},
! 838: '(lambda|#955)' => {'tex' => '{/Symbol k}', 'web' => "\x{3BB}"},
! 839: '(mu|#956)' => {'tex' => '{/Symbol m}', 'web' => "\x{3BC}"},
! 840: '(nu|#957)' => {'tex' => '{/Symbol n}', 'web' => "\x{3BD}"},
! 841: '(omicron|#959)' => {'tex' => '{/Symbol o}', 'web' => "\x{3BF}"},
! 842: '(pi|#960)' => {'tex' => '{/Symbol p}', 'web' => "\x{3C0}"},
! 843: '(theta|#952)' => {'tex' => '{/Symbol q}', 'web' => "\x{3B8}"},
! 844: '(rho|#961)' => {'tex' => '{/Symbol r}', 'web' => "\x{3C1}"},
! 845: '(sigma|#963)' => {'tex' => '{/Symbol s}', 'web' => "\x{3C3}"},
! 846: '(tau|#964)' => {'tex' => '{/Symbol t}', 'web' => "\x{3C4}"},
! 847: '(upsilon|#965)' => {'tex' => '{/Symbol u}', 'web' => "\x{3C5}"},
! 848: '(omega|#969)' => {'tex' => '{/Symbol w}', 'web' => "\x{3C9}"},
! 849: '(xi|#958)' => {'tex' => '{/Symbol x}', 'web' => "\x{3BE}"},
! 850: '(psi|#968)' => {'tex' => '{/Symbol y}', 'web' => "\x{3C8}"},
! 851: '(zeta|#950)' => {'tex' => '{/Symbol z}', 'web' => "\x{3B6}"},
! 852: );
! 853:
1.128 albertel 854:
855: sub replace_entities {
856: my ($target,$text) = @_;
857: $text =~ s{([_^~\{\}]|\\\\)}{\\\\$1}g;
858: while (my ($re, $replace) = each(%lookup)) {
859: $text =~ s/&$re;/$replace->{$target}/g;
860: }
861: $text =~ s{(&)}{\\\\$1}g;
862: return $text;
1.127 albertel 863: }
864:
1.1 matthew 865: ##------------------------------------------------------------------- title
866: sub start_title {
867: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
868: my $result='';
1.51 matthew 869: if ($target eq 'web' || $target eq 'tex') {
1.112 albertel 870: $title = &Apache::lonxml::get_all_text("/title",$parser,$style);
1.58 matthew 871: $title=&Apache::run::evaluate($title,$safeeval,$$parstack[-1]);
1.49 matthew 872: $title =~ s/\n/ /g;
1.32 matthew 873: if (length($title) > $max_str_len) {
874: $title = substr($title,0,$max_str_len);
875: }
1.128 albertel 876: $title = &parse_label($target,$title);
1.20 matthew 877: } elsif ($target eq 'edit') {
1.25 matthew 878: $result.=&Apache::edit::tag_start($target,$token,'Plot Title');
1.112 albertel 879: my $text=&Apache::lonxml::get_all_text("/title",$parser,$style);
1.116 albertel 880: $result.=&Apache::edit::editline('',$text,'',60);
1.20 matthew 881: } elsif ($target eq 'modified') {
1.42 matthew 882: $result.=&Apache::edit::rebuild_tag($token);
1.93 albertel 883: $result.=&Apache::edit::modifiedfield("/title",$parser);
1.4 matthew 884: }
1.1 matthew 885: return $result;
886: }
887:
888: sub end_title {
889: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
890: my $result = '';
1.51 matthew 891: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 892: } elsif ($target eq 'edit') {
1.27 matthew 893: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 894: }
1.1 matthew 895: return $result;
896: }
897: ##------------------------------------------------------------------- xlabel
898: sub start_xlabel {
899: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
900: my $result='';
1.51 matthew 901: if ($target eq 'web' || $target eq 'tex') {
1.112 albertel 902: $xlabel = &Apache::lonxml::get_all_text("/xlabel",$parser,$style);
1.58 matthew 903: $xlabel=&Apache::run::evaluate($xlabel,$safeeval,$$parstack[-1]);
1.49 matthew 904: $xlabel =~ s/\n/ /g;
1.32 matthew 905: if (length($xlabel) > $max_str_len) {
906: $xlabel = substr($xlabel,0,$max_str_len);
907: }
1.128 albertel 908: $xlabel = &parse_label($target,$xlabel);
1.20 matthew 909: } elsif ($target eq 'edit') {
1.25 matthew 910: $result.=&Apache::edit::tag_start($target,$token,'Plot Xlabel');
1.112 albertel 911: my $text=&Apache::lonxml::get_all_text("/xlabel",$parser,$style);
1.116 albertel 912: $result.=&Apache::edit::editline('',$text,'',60);
1.20 matthew 913: } elsif ($target eq 'modified') {
1.42 matthew 914: $result.=&Apache::edit::rebuild_tag($token);
1.93 albertel 915: $result.=&Apache::edit::modifiedfield("/xlabel",$parser);
1.4 matthew 916: }
1.1 matthew 917: return $result;
918: }
919:
920: sub end_xlabel {
921: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
922: my $result = '';
1.51 matthew 923: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 924: } elsif ($target eq 'edit') {
1.27 matthew 925: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 926: }
1.1 matthew 927: return $result;
928: }
1.21 matthew 929:
1.1 matthew 930: ##------------------------------------------------------------------- ylabel
931: sub start_ylabel {
932: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
933: my $result='';
1.51 matthew 934: if ($target eq 'web' || $target eq 'tex') {
1.112 albertel 935: $ylabel = &Apache::lonxml::get_all_text("/ylabel",$parser,$style);
1.58 matthew 936: $ylabel = &Apache::run::evaluate($ylabel,$safeeval,$$parstack[-1]);
1.49 matthew 937: $ylabel =~ s/\n/ /g;
1.32 matthew 938: if (length($ylabel) > $max_str_len) {
939: $ylabel = substr($ylabel,0,$max_str_len);
940: }
1.128 albertel 941: $ylabel = &parse_label($target,$ylabel);
1.20 matthew 942: } elsif ($target eq 'edit') {
1.25 matthew 943: $result .= &Apache::edit::tag_start($target,$token,'Plot Ylabel');
1.112 albertel 944: my $text = &Apache::lonxml::get_all_text("/ylabel",$parser,$style);
1.116 albertel 945: $result .= &Apache::edit::editline('',$text,'',60);
1.20 matthew 946: } elsif ($target eq 'modified') {
1.42 matthew 947: $result.=&Apache::edit::rebuild_tag($token);
1.93 albertel 948: $result.=&Apache::edit::modifiedfield("/ylabel",$parser);
1.4 matthew 949: }
1.1 matthew 950: return $result;
951: }
952:
953: sub end_ylabel {
954: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
955: my $result = '';
1.51 matthew 956: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 957: } elsif ($target eq 'edit') {
1.27 matthew 958: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 959: }
1.1 matthew 960: return $result;
961: }
1.21 matthew 962:
1.1 matthew 963: ##------------------------------------------------------------------- label
964: sub start_label {
965: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
966: my $result='';
1.51 matthew 967: if ($target eq 'web' || $target eq 'tex') {
1.17 matthew 968: my %label;
969: &get_attributes(\%label,\%label_defaults,$parstack,$safeeval,
1.11 matthew 970: $tagstack->[-1]);
1.112 albertel 971: my $text = &Apache::lonxml::get_all_text("/label",$parser,$style);
1.58 matthew 972: $text = &Apache::run::evaluate($text,$safeeval,$$parstack[-1]);
1.49 matthew 973: $text =~ s/\n/ /g;
1.32 matthew 974: $text = substr($text,0,$max_str_len) if (length($text) > $max_str_len);
1.128 albertel 975: $label{'text'} = &parse_label($target,$text);
1.17 matthew 976: push(@labels,\%label);
1.20 matthew 977: } elsif ($target eq 'edit') {
1.25 matthew 978: $result .= &Apache::edit::tag_start($target,$token,'Plot Label');
1.21 matthew 979: $result .= &edit_attributes($target,$token,\%label_defaults);
1.112 albertel 980: my $text = &Apache::lonxml::get_all_text("/label",$parser,$style);
1.39 matthew 981: $result .= &Apache::edit::end_row().
982: &Apache::edit::start_spanning_row().
1.63 albertel 983: &Apache::edit::editline('',$text,'',60);
1.20 matthew 984: } elsif ($target eq 'modified') {
1.42 matthew 985: &Apache::edit::get_new_args
1.24 matthew 986: ($token,$parstack,$safeeval,keys(%label_defaults));
1.42 matthew 987: $result.=&Apache::edit::rebuild_tag($token);
1.93 albertel 988: $result.=&Apache::edit::modifiedfield("/label",$parser);
1.4 matthew 989: }
1.1 matthew 990: return $result;
991: }
992:
993: sub end_label {
994: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
995: my $result = '';
1.51 matthew 996: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 997: } elsif ($target eq 'edit') {
1.21 matthew 998: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 999: }
1.1 matthew 1000: return $result;
1001: }
1002:
1003: ##------------------------------------------------------------------- curve
1004: sub start_curve {
1005: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1006: my $result='';
1.25 matthew 1007: &Apache::lonxml::register('Apache::lonplot',('function','data'));
1008: push (@Apache::lonxml::namespace,'curve');
1.51 matthew 1009: if ($target eq 'web' || $target eq 'tex') {
1.17 matthew 1010: my %curve;
1011: &get_attributes(\%curve,\%curve_defaults,$parstack,$safeeval,
1.11 matthew 1012: $tagstack->[-1]);
1.17 matthew 1013: push (@curves,\%curve);
1.20 matthew 1014: } elsif ($target eq 'edit') {
1.26 matthew 1015: $result .= &Apache::edit::tag_start($target,$token,'Curve');
1.60 matthew 1016: $result .= &edit_attributes($target,$token,\%curve_defaults,
1.116 albertel 1017: \@curve_edit_order)
1018: .&Apache::edit::end_row()
1019: .&Apache::edit::start_spanning_row();
1020:
1.20 matthew 1021: } elsif ($target eq 'modified') {
1022: my $constructtag=&Apache::edit::get_new_args
1.35 matthew 1023: ($token,$parstack,$safeeval,keys(%curve_defaults));
1.20 matthew 1024: if ($constructtag) {
1025: $result = &Apache::edit::rebuild_tag($token);
1026: }
1.4 matthew 1027: }
1.1 matthew 1028: return $result;
1029: }
1030:
1031: sub end_curve {
1032: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1033: my $result = '';
1.25 matthew 1034: pop @Apache::lonxml::namespace;
1035: &Apache::lonxml::deregister('Apache::lonplot',('function','data'));
1.51 matthew 1036: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 1037: } elsif ($target eq 'edit') {
1.21 matthew 1038: $result.=&Apache::edit::tag_end($target,$token);
1.4 matthew 1039: }
1.1 matthew 1040: return $result;
1041: }
1.21 matthew 1042:
1.1 matthew 1043: ##------------------------------------------------------------ curve function
1044: sub start_function {
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: if (exists($curves[-1]->{'data'})) {
1.85 matthew 1049: &Apache::lonxml::warning
1050: ('Use of the <b>curve function</b> tag precludes use of '.
1051: ' the <b>curve data</b> tag. '.
1052: 'The curve data tag will be omitted in favor of the '.
1053: 'curve function declaration.');
1.17 matthew 1054: delete $curves[-1]->{'data'} ;
1055: }
1.112 albertel 1056: my $function = &Apache::lonxml::get_all_text("/function",$parser,
1057: $style);
1.58 matthew 1058: $function = &Apache::run::evaluate($function,$safeeval,$$parstack[-1]);
1059: $curves[-1]->{'function'} = $function;
1.20 matthew 1060: } elsif ($target eq 'edit') {
1.37 matthew 1061: $result .= &Apache::edit::tag_start($target,$token,'Gnuplot compatible curve function');
1.112 albertel 1062: my $text = &Apache::lonxml::get_all_text("/function",$parser,$style);
1.116 albertel 1063: $result .= &Apache::edit::editline('',$text,'',60);
1.20 matthew 1064: } elsif ($target eq 'modified') {
1.42 matthew 1065: $result.=&Apache::edit::rebuild_tag($token);
1.93 albertel 1066: $result.=&Apache::edit::modifiedfield("/function",$parser);
1.4 matthew 1067: }
1.1 matthew 1068: return $result;
1069: }
1070:
1071: sub end_function {
1072: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1073: my $result = '';
1.51 matthew 1074: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 1075: } elsif ($target eq 'edit') {
1.26 matthew 1076: $result .= &Apache::edit::end_table();
1.4 matthew 1077: }
1.1 matthew 1078: return $result;
1079: }
1.21 matthew 1080:
1.1 matthew 1081: ##------------------------------------------------------------ curve data
1082: sub start_data {
1083: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1084: my $result='';
1.51 matthew 1085: if ($target eq 'web' || $target eq 'tex') {
1.17 matthew 1086: if (exists($curves[-1]->{'function'})) {
1.85 matthew 1087: &Apache::lonxml::warning
1088: ('Use of the <b>curve function</b> tag precludes use of '.
1089: ' the <b>curve data</b> tag. '.
1090: 'The curve function tag will be omitted in favor of the '.
1091: 'curve data declaration.');
1.17 matthew 1092: delete($curves[-1]->{'function'});
1093: }
1.112 albertel 1094: my $datatext = &Apache::lonxml::get_all_text("/data",$parser,$style);
1.58 matthew 1095: $datatext=&Apache::run::evaluate($datatext,$safeeval,$$parstack[-1]);
1.40 matthew 1096: # Deal with cases where we're given an array...
1097: if ($datatext =~ /^\@/) {
1098: $datatext = &Apache::run::run('return "'.$datatext.'"',
1099: $safeeval,1);
1100: }
1.49 matthew 1101: $datatext =~ s/\s+/ /g;
1.17 matthew 1102: # Need to do some error checking on the @data array -
1103: # make sure it's all numbers and make sure each array
1104: # is of the same length.
1105: my @data;
1.35 matthew 1106: if ($datatext =~ /,/) { # comma deliminated
1.17 matthew 1107: @data = split /,/,$datatext;
1.95 www 1108: } else { # Assume it's space separated.
1.17 matthew 1109: @data = split / /,$datatext;
1110: }
1111: for (my $i=0;$i<=$#data;$i++) {
1112: # Check that it's non-empty
1.19 matthew 1113: if (! defined($data[$i])) {
1114: &Apache::lonxml::warning(
1.85 matthew 1115: 'undefined curve data value. Replacing with '.
1.19 matthew 1116: ' pi/e = 1.15572734979092');
1117: $data[$i] = 1.15572734979092;
1118: }
1.17 matthew 1119: # Check that it's a number
1.19 matthew 1120: if (! &$real_test($data[$i]) & ! &$int_test($data[$i])) {
1121: &Apache::lonxml::warning(
1.85 matthew 1122: 'Bad curve data value of '.$data[$i].' Replacing with '.
1.19 matthew 1123: ' pi/e = 1.15572734979092');
1124: $data[$i] = 1.15572734979092;
1125: }
1.17 matthew 1126: }
1.35 matthew 1127: # complain if the number of data points is not the same as
1128: # in previous sets of data.
1.36 matthew 1129: if (($curves[-1]->{'data'}) && ($#data != $#{@{$curves[-1]->{'data'}->[0]}})){
1.35 matthew 1130: &Apache::lonxml::warning
1131: ('Number of data points is not consistent with previous '.
1132: 'number of data points');
1133: }
1.17 matthew 1134: push @{$curves[-1]->{'data'}},\@data;
1.20 matthew 1135: } elsif ($target eq 'edit') {
1.37 matthew 1136: $result .= &Apache::edit::tag_start($target,$token,'Comma or space deliminated curve data');
1.112 albertel 1137: my $text = &Apache::lonxml::get_all_text("/data",$parser,$style);
1.116 albertel 1138: $result .= &Apache::edit::editline('',$text,'',60);
1.20 matthew 1139: } elsif ($target eq 'modified') {
1.42 matthew 1140: $result.=&Apache::edit::rebuild_tag($token);
1.93 albertel 1141: $result.=&Apache::edit::modifiedfield("/data",$parser);
1.4 matthew 1142: }
1.1 matthew 1143: return $result;
1144: }
1145:
1146: sub end_data {
1147: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1148: my $result = '';
1.51 matthew 1149: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 1150: } elsif ($target eq 'edit') {
1.26 matthew 1151: $result .= &Apache::edit::end_table();
1.4 matthew 1152: }
1.1 matthew 1153: return $result;
1154: }
1155:
1156: ##------------------------------------------------------------------- axis
1157: sub start_axis {
1158: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1159: my $result='';
1.51 matthew 1160: if ($target eq 'web' || $target eq 'tex') {
1.17 matthew 1161: &get_attributes(\%axis,\%axis_defaults,$parstack,$safeeval,
1162: $tagstack->[-1]);
1.20 matthew 1163: } elsif ($target eq 'edit') {
1.25 matthew 1164: $result .= &Apache::edit::tag_start($target,$token,'Plot Axes');
1.65 matthew 1165: $result .= &edit_attributes($target,$token,\%axis_defaults,
1166: \@axis_edit_order);
1.20 matthew 1167: } elsif ($target eq 'modified') {
1.29 matthew 1168: my $constructtag=&Apache::edit::get_new_args
1169: ($token,$parstack,$safeeval,keys(%axis_defaults));
1170: if ($constructtag) {
1171: $result = &Apache::edit::rebuild_tag($token);
1172: }
1.4 matthew 1173: }
1.1 matthew 1174: return $result;
1175: }
1176:
1177: sub end_axis {
1178: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1179: my $result = '';
1.51 matthew 1180: if ($target eq 'web' || $target eq 'tex') {
1.20 matthew 1181: } elsif ($target eq 'edit') {
1.21 matthew 1182: $result.=&Apache::edit::tag_end($target,$token);
1.20 matthew 1183: } elsif ($target eq 'modified') {
1.4 matthew 1184: }
1.1 matthew 1185: return $result;
1186: }
1187:
1.21 matthew 1188: ###################################################################
1189: ## ##
1190: ## Utility Functions ##
1191: ## ##
1192: ###################################################################
1193:
1.13 matthew 1194: ##----------------------------------------------------------- set_defaults
1195: sub set_defaults {
1.21 matthew 1196: my ($var,$defaults) = @_;
1.13 matthew 1197: my $key;
1.24 matthew 1198: foreach $key (keys(%$defaults)) {
1.13 matthew 1199: $var->{$key} = $defaults->{$key}->{'default'};
1200: }
1201: }
1202:
1.1 matthew 1203: ##------------------------------------------------------------------- misc
1.2 matthew 1204: sub get_attributes{
1.21 matthew 1205: my ($values,$defaults,$parstack,$safeeval,$tag) = @_;
1.24 matthew 1206: foreach my $attr (keys(%{$defaults})) {
1.92 matthew 1207: if ($attr eq 'texwidth' || $attr eq 'texfont') {
1.86 albertel 1208: $values->{$attr} =
1209: &Apache::lonxml::get_param($attr,$parstack,$safeeval,undef,1);
1210: } else {
1211: $values->{$attr} =
1212: &Apache::lonxml::get_param($attr,$parstack,$safeeval);
1213: }
1.10 matthew 1214: if ($values->{$attr} eq '' | !defined($values->{$attr})) {
1.11 matthew 1215: $values->{$attr} = $defaults->{$attr}->{'default'};
1.6 matthew 1216: next;
1217: }
1.10 matthew 1218: my $test = $defaults->{$attr}->{'test'};
1219: if (! &$test($values->{$attr})) {
1.6 matthew 1220: &Apache::lonxml::warning
1221: ($tag.':'.$attr.': Bad value.'.'Replacing your value with : '
1.11 matthew 1222: .$defaults->{$attr}->{'default'} );
1223: $values->{$attr} = $defaults->{$attr}->{'default'};
1.10 matthew 1224: }
1.2 matthew 1225: }
1.11 matthew 1226: return ;
1.6 matthew 1227: }
1.40 matthew 1228:
1.15 matthew 1229: ##------------------------------------------------------- write_gnuplot_file
1.6 matthew 1230: sub write_gnuplot_file {
1.51 matthew 1231: my ($tmpdir,$filename,$target)= @_;
1.124 albertel 1232: my ($fontsize, $font_properties) = &get_font($target);
1.6 matthew 1233: my $gnuplot_input = '';
1.10 matthew 1234: my $curve;
1.100 matthew 1235: #
1236: # Check to be sure we do not have any empty curves
1237: my @curvescopy;
1238: foreach my $curve (@curves) {
1239: if (exists($curve->{'function'})) {
1240: if ($curve->{'function'} !~ /^\s*$/) {
1241: push(@curvescopy,$curve);
1242: }
1243: } elsif (exists($curve->{'data'})) {
1244: foreach my $data (@{$curve->{'data'}}) {
1245: if (scalar(@$data) > 0) {
1246: push(@curvescopy,$curve);
1247: last;
1248: }
1249: }
1250: }
1251: }
1252: @curves = @curvescopy;
1.6 matthew 1253: # Collect all the colors
1254: my @Colors;
1.107 foxr 1255: push @Colors, $Apache::lonplot::plot{'bgcolor'};
1256: push @Colors, $Apache::lonplot::plot{'fgcolor'};
1257: push @Colors, (defined($axis{'color'})?$axis{'color'}:$Apache::lonplot::plot{'fgcolor'});
1.9 matthew 1258: foreach $curve (@curves) {
1259: push @Colors, ($curve->{'color'} ne '' ?
1260: $curve->{'color'} :
1.107 foxr 1261: $Apache::lonplot::plot{'fgcolor'} );
1.6 matthew 1262: }
1263: # set term
1.51 matthew 1264: if ($target eq 'web') {
1.120 albertel 1265: $gnuplot_input .= 'set terminal png enhanced nocrop ';
1.107 foxr 1266: $gnuplot_input .= 'transparent ' if ($Apache::lonplot::plot{'transparent'} eq 'on');
1.120 albertel 1267: $gnuplot_input .= 'font "'.$Apache::lonnet::perlvar{'lonFontsDir'}.
1268: '/'.$font_properties->{'file'}.'.ttf" ';
1269: $gnuplot_input .= $fontsize;
1270: $gnuplot_input .= ' size '.$Apache::lonplot::plot{'width'}.','.$Apache::lonplot::plot{'height'}.' ';
1.51 matthew 1271: $gnuplot_input .= "@Colors\n";
1272: # set output
1273: $gnuplot_input .= "set output\n";
1274: } elsif ($target eq 'tex') {
1.120 albertel 1275: $gnuplot_input .= "set term postscript eps enhanced $Apache::lonplot::plot{'plotcolor'} solid ";
1.121 albertel 1276: if (!$font_properties->{'tex_no_file'}) {
1277: $gnuplot_input .=
1278: 'fontfile "'.$Apache::lonnet::perlvar{'lonFontsDir'}.
1279: '/'.$font_properties->{'file'}.'.pfb" ';
1280: }
1.120 albertel 1281: $gnuplot_input .= ' "'.$font_properties->{'printname'}.'" ';
1282: $gnuplot_input .= $fontsize;
1283: $gnuplot_input .= "\nset output \"/home/httpd/perl/tmp/".
1.113 www 1284: &unescape($filename).".eps\"\n";
1.87 matthew 1285: }
1.115 albertel 1286: # cartesian or polar plot?
1.107 foxr 1287: if (lc($Apache::lonplot::plot{'plottype'}) eq 'polar') {
1.87 matthew 1288: $gnuplot_input .= 'set polar'.$/;
1289: } else {
1290: # Assume Cartesian
1.51 matthew 1291: }
1.115 albertel 1292: # cartesian or polar grid?
1293: if (lc($Apache::lonplot::plot{'gridtype'}) eq 'polar') {
1294: $gnuplot_input .= 'set grid polar'.$/;
1.118 albertel 1295: } elsif (lc($Apache::lonplot::plot{'gridtype'}) eq 'linear-log') {
1296: $gnuplot_input .= 'set logscale x'.$/;
1297: } elsif (lc($Apache::lonplot::plot{'gridtype'}) eq 'log-linear') {
1298: $gnuplot_input .= 'set logscale y'.$/;
1299: } elsif (lc($Apache::lonplot::plot{'gridtype'}) eq 'log-log') {
1300: $gnuplot_input .= 'set logscale x'.$/;
1301: $gnuplot_input .= 'set logscale y'.$/;
1.115 albertel 1302: } else {
1303: # Assume Cartesian
1304: }
1.110 albertel 1305: # solid or pattern for boxes?
1306: if (lc($Apache::lonplot::plot{'fillstyle'}) eq 'solid') {
1307: $gnuplot_input .= 'set style fill solid '.
1308: $Apache::lonplot::plot{'solid'}.$Apache::lonplot::plot{'box_border'}.$/;
1309: } elsif (lc($Apache::lonplot::plot{'fillstyle'}) eq 'pattern') {
1310: $gnuplot_input .= 'set style fill pattern '.$Apache::lonplot::plot{'pattern'}.$Apache::lonplot::plot{'box_border'}.$/;
1311: } elsif (lc($Apache::lonplot::plot{'fillstyle'}) eq 'empty') {
1312: }
1.101 matthew 1313: # margin
1.107 foxr 1314: if (lc($Apache::lonplot::plot{'lmargin'}) ne 'default') {
1315: $gnuplot_input .= 'set lmargin '.$Apache::lonplot::plot{'lmargin'}.$/;
1.101 matthew 1316: }
1.107 foxr 1317: if (lc($Apache::lonplot::plot{'rmargin'}) ne 'default') {
1318: $gnuplot_input .= 'set rmargin '.$Apache::lonplot::plot{'rmargin'}.$/;
1.101 matthew 1319: }
1.107 foxr 1320: if (lc($Apache::lonplot::plot{'tmargin'}) ne 'default') {
1321: $gnuplot_input .= 'set tmargin '.$Apache::lonplot::plot{'tmargin'}.$/;
1.101 matthew 1322: }
1.107 foxr 1323: if (lc($Apache::lonplot::plot{'bmargin'}) ne 'default') {
1324: $gnuplot_input .= 'set bmargin '.$Apache::lonplot::plot{'bmargin'}.$/;
1.101 matthew 1325: }
1.129 albertel 1326:
1.101 matthew 1327: # tic scales
1.129 albertel 1328: if ($version > 4) {
1329: $gnuplot_input .= 'set tics scale '.
1330: $Apache::lonplot::plot{'major_ticscale'}.', '.$Apache::lonplot::plot{'minor_ticscale'}.$/;
1331: } else {
1332: $gnuplot_input .= 'set ticscale '.
1333: $Apache::lonplot::plot{'major_ticscale'}.' '.$Apache::lonplot::plot{'minor_ticscale'}.$/;
1334: }
1.110 albertel 1335: #boxwidth
1336: if (lc($Apache::lonplot::plot{'boxwidth'}) ne '') {
1337: $gnuplot_input .= 'set boxwidth '.$Apache::lonplot::plot{'boxwidth'}.$/;
1338: }
1339: # gridlayer
1340: $gnuplot_input .= 'set grid noxtics noytics front '.$/
1341: if ($Apache::lonplot::plot{'gridlayer'} eq 'on');
1342:
1.7 matthew 1343: # grid
1.107 foxr 1344: $gnuplot_input .= 'set grid'.$/ if ($Apache::lonplot::plot{'grid'} eq 'on');
1.7 matthew 1345: # border
1.107 foxr 1346: $gnuplot_input .= ($Apache::lonplot::plot{'border'} eq 'on'?
1.9 matthew 1347: 'set border'.$/ :
1.67 matthew 1348: 'set noborder'.$/ );
1.77 matthew 1349: # sampling rate for non-data curves
1.107 foxr 1350: $gnuplot_input .= "set samples $Apache::lonplot::plot{'samples'}\n";
1.67 matthew 1351: # title, xlabel, ylabel
1.45 matthew 1352: # titles
1.125 albertel 1353: my $extra_space_x = ($xtics{'location'} eq 'axis') ? ' 0, -0.5 ' : '';
1354: my $extra_space_y = ($ytics{'location'} eq 'axis') ? ' -0.5, 0 ' : '';
1355:
1.89 matthew 1356: if ($target eq 'tex') {
1.125 albertel 1357: $gnuplot_input .= "set title \"$title\" font \"".$font_properties->{'printname'}.",".$fontsize."pt\"\n" if (defined($title)) ;
1358: $gnuplot_input .= "set xlabel \"$xlabel\" $extra_space_x font \"".$font_properties->{'printname'}.",".$fontsize."pt\"\n" if (defined($xlabel));
1359: $gnuplot_input .= "set ylabel \"$ylabel\" $extra_space_y font \"".$font_properties->{'printname'}.",".$fontsize."pt\"\n" if (defined($ylabel));
1.89 matthew 1360: } else {
1.125 albertel 1361: $gnuplot_input .= "set title \"$title\" \n" if (defined($title)) ;
1362: $gnuplot_input .= "set xlabel \"$xlabel\" $extra_space_x \n" if (defined($xlabel));
1363: $gnuplot_input .= "set ylabel \"$ylabel\" $extra_space_y \n" if (defined($ylabel));
1.89 matthew 1364: }
1.45 matthew 1365: # tics
1366: if (%xtics) {
1367: $gnuplot_input .= "set xtics $xtics{'location'} ";
1.46 matthew 1368: $gnuplot_input .= ( $xtics{'mirror'} eq 'on'?"mirror ":"nomirror ");
1.45 matthew 1369: $gnuplot_input .= "$xtics{'start'}, ";
1370: $gnuplot_input .= "$xtics{'increment'}, ";
1371: $gnuplot_input .= "$xtics{'end'}\n";
1.89 matthew 1372: if ($xtics{'minorfreq'} != 0) {
1373: $gnuplot_input .= "set mxtics ".$xtics{'minorfreq'}."\n";
1374: }
1.45 matthew 1375: }
1376: if (%ytics) {
1377: $gnuplot_input .= "set ytics $ytics{'location'} ";
1.46 matthew 1378: $gnuplot_input .= ( $ytics{'mirror'} eq 'on'?"mirror ":"nomirror ");
1.45 matthew 1379: $gnuplot_input .= "$ytics{'start'}, ";
1380: $gnuplot_input .= "$ytics{'increment'}, ";
1381: $gnuplot_input .= "$ytics{'end'}\n";
1.89 matthew 1382: if ($ytics{'minorfreq'} != 0) {
1383: $gnuplot_input .= "set mytics ".$ytics{'minorfreq'}."\n";
1384: }
1.45 matthew 1385: }
1386: # axis
1.23 matthew 1387: if (%axis) {
1.132 albertel 1388: if ($axis{'xformat'} ne 'on') {
1389: $gnuplot_input .= "set format x ";
1390: if ($axis{'xformat'} eq 'off') {
1391: $gnuplot_input .= "\"\"\n";
1392: } else {
1393: $gnuplot_input .= "\"\%.".$axis{'xformat'}."\"\n";
1394: }
1395: }
1396: if ($axis{'yformat'} ne 'on') {
1397: $gnuplot_input .= "set format y ";
1398: if ($axis{'yformat'} eq 'off') {
1399: $gnuplot_input .= "\"\"\n";
1400: } else {
1401: $gnuplot_input .= "\"\%.".$axis{'yformat'}."\"\n";
1402: }
1403: }
1.13 matthew 1404: $gnuplot_input .= "set xrange \[$axis{'xmin'}:$axis{'xmax'}\]\n";
1405: $gnuplot_input .= "set yrange \[$axis{'ymin'}:$axis{'ymax'}\]\n";
1.6 matthew 1406: }
1407: # Key
1.23 matthew 1408: if (%key) {
1.9 matthew 1409: $gnuplot_input .= 'set key '.$key{'pos'}.' ';
1410: if ($key{'title'} ne '') {
1.67 matthew 1411: $gnuplot_input .= 'title "'.$key{'title'}.'" ';
1.11 matthew 1412: }
1413: $gnuplot_input .= ($key{'box'} eq 'on' ? 'box ' : 'nobox ').$/;
1.6 matthew 1414: } else {
1.9 matthew 1415: $gnuplot_input .= 'set nokey'.$/;
1.13 matthew 1416: }
1.6 matthew 1417: # labels
1.10 matthew 1418: my $label;
1.6 matthew 1419: foreach $label (@labels) {
1420: $gnuplot_input .= 'set label "'.$label->{'text'}.'" at '.
1.103 matthew 1421: $label->{'xpos'}.','.$label->{'ypos'}.' '.$label->{'justify'};
1422: if ($target eq 'tex') {
1.124 albertel 1423: $gnuplot_input .=' font "'.$font_properties->{'printname'}.','.$fontsize.'pt"' ;
1.103 matthew 1424: }
1425: $gnuplot_input .= $/;
1.6 matthew 1426: }
1.74 matthew 1427: if ($target eq 'tex') {
1.107 foxr 1428: $gnuplot_input .="set size 1,".$Apache::lonplot::plot{'height'}/$Apache::lonplot::plot{'width'}*1.38;
1.74 matthew 1429: $gnuplot_input .="\n";
1.120 albertel 1430: }
1.6 matthew 1431: # curves
1432: $gnuplot_input .= 'plot ';
1.9 matthew 1433: for (my $i = 0;$i<=$#curves;$i++) {
1434: $curve = $curves[$i];
1435: $gnuplot_input.= ', ' if ($i > 0);
1.119 albertel 1436: if ($target eq 'tex') {
1437: $curve->{'linewidth'} *= 2;
1438: }
1.6 matthew 1439: if (exists($curve->{'function'})) {
1.9 matthew 1440: $gnuplot_input.=
1441: $curve->{'function'}.' title "'.
1442: $curve->{'name'}.'" with '.
1.72 matthew 1443: $curve->{'linestyle'};
1.119 albertel 1444:
1.60 matthew 1445: if (($curve->{'linestyle'} eq 'points') ||
1446: ($curve->{'linestyle'} eq 'linespoints') ||
1447: ($curve->{'linestyle'} eq 'errorbars') ||
1448: ($curve->{'linestyle'} eq 'xerrorbars') ||
1449: ($curve->{'linestyle'} eq 'yerrorbars') ||
1450: ($curve->{'linestyle'} eq 'xyerrorbars')) {
1.62 matthew 1451: $gnuplot_input.=' pointtype '.$curve->{'pointtype'};
1.60 matthew 1452: $gnuplot_input.=' pointsize '.$curve->{'pointsize'};
1.110 albertel 1453: } elsif ($curve->{'linestyle'} eq 'filledcurves') {
1454: $gnuplot_input.= ' '.$curve->{'limit'};
1.60 matthew 1455: }
1.131 albertel 1456: $gnuplot_input.= ' linewidth '.$curve->{'linewidth'};
1457:
1.6 matthew 1458: } elsif (exists($curve->{'data'})) {
1.40 matthew 1459: # Store data values in $datatext
1460: my $datatext = '';
1461: # get new filename
1.70 matthew 1462: my $datafilename = "$tmpdir/$filename.data.$i";
1.40 matthew 1463: my $fh=Apache::File->new(">$datafilename");
1464: # Compile data
1.6 matthew 1465: my @Data = @{$curve->{'data'}};
1.9 matthew 1466: my @Data0 = @{$Data[0]};
1467: for (my $i =0; $i<=$#Data0; $i++) {
1.10 matthew 1468: my $dataset;
1.6 matthew 1469: foreach $dataset (@Data) {
1.9 matthew 1470: $datatext .= $dataset->[$i] . ' ';
1.6 matthew 1471: }
1.9 matthew 1472: $datatext .= $/;
1.6 matthew 1473: }
1.40 matthew 1474: # write file
1475: print $fh $datatext;
1.119 albertel 1476: close($fh);
1.40 matthew 1477: # generate gnuplot text
1478: $gnuplot_input.= '"'.$datafilename.'" title "'.
1479: $curve->{'name'}.'" with '.
1480: $curve->{'linestyle'};
1.62 matthew 1481: if (($curve->{'linestyle'} eq 'points') ||
1482: ($curve->{'linestyle'} eq 'linespoints') ||
1483: ($curve->{'linestyle'} eq 'errorbars') ||
1484: ($curve->{'linestyle'} eq 'xerrorbars') ||
1485: ($curve->{'linestyle'} eq 'yerrorbars') ||
1486: ($curve->{'linestyle'} eq 'xyerrorbars')) {
1487: $gnuplot_input.=' pointtype '.$curve->{'pointtype'};
1488: $gnuplot_input.=' pointsize '.$curve->{'pointsize'};
1.110 albertel 1489: } elsif ($curve->{'linestyle'} eq 'filledcurves') {
1490: $gnuplot_input.= ' '.$curve->{'limit'};
1.62 matthew 1491: }
1.131 albertel 1492: $gnuplot_input.= ' linewidth '.$curve->{'linewidth'};
1.6 matthew 1493: }
1494: }
1.40 matthew 1495: # Write the output to a file.
1.128 albertel 1496: open (my $fh,">$tmpdir$filename.data");
1497: binmode($fh, ":utf8");
1.40 matthew 1498: print $fh $gnuplot_input;
1499: close($fh);
1500: # That's all folks.
1501: return ;
1.2 matthew 1502: }
1.21 matthew 1503:
1504: #---------------------------------------------- check_inputs
1505: sub check_inputs {
1506: ## Note: no inputs, no outputs - this acts only on global variables.
1507: ## Make sure we have all the input we need:
1.107 foxr 1508: if (! %Apache::lonplot::plot) { &set_defaults(\%Apache::lonplot::plot,\%gnuplot_defaults); }
1.23 matthew 1509: if (! %key ) {} # No key for this plot, thats okay
1.34 matthew 1510: # if (! %axis) { &set_defaults(\%axis,\%axis_defaults); }
1.21 matthew 1511: if (! defined($title )) {} # No title for this plot, thats okay
1512: if (! defined($xlabel)) {} # No xlabel for this plot, thats okay
1513: if (! defined($ylabel)) {} # No ylabel for this plot, thats okay
1514: if ($#labels < 0) { } # No labels for this plot, thats okay
1515: if ($#curves < 0) {
1516: &Apache::lonxml::warning("No curves specified for plot!!!!");
1517: return '';
1518: }
1519: my $curve;
1520: foreach $curve (@curves) {
1521: if (!defined($curve->{'function'})&&!defined($curve->{'data'})){
1.85 matthew 1522: &Apache::lonxml::warning("One of the curves specified did not contain any curve data or curve function declarations\n");
1.21 matthew 1523: return '';
1524: }
1525: }
1526: }
1527:
1.20 matthew 1528: #------------------------------------------------ make_edit
1529: sub edit_attributes {
1.34 matthew 1530: my ($target,$token,$defaults,$keys) = @_;
1531: my ($result,@keys);
1532: if ($keys && ref($keys) eq 'ARRAY') {
1533: @keys = @$keys;
1534: } else {
1535: @keys = sort(keys(%$defaults));
1536: }
1537: foreach my $attr (@keys) {
1.35 matthew 1538: # append a ' ' to the description if it doesn't have one already.
1539: my $description = $defaults->{$attr}->{'description'};
1540: $description .= ' ' if ($description !~ / $/);
1.20 matthew 1541: if ($defaults->{$attr}->{'edit_type'} eq 'entry') {
1.35 matthew 1542: $result .= &Apache::edit::text_arg
1.38 matthew 1543: ($description,$attr,$token,
1544: $defaults->{$attr}->{'size'});
1.20 matthew 1545: } elsif ($defaults->{$attr}->{'edit_type'} eq 'choice') {
1.102 albertel 1546: $result .= &Apache::edit::select_or_text_arg
1.35 matthew 1547: ($description,$attr,$defaults->{$attr}->{'choices'},$token);
1.45 matthew 1548: } elsif ($defaults->{$attr}->{'edit_type'} eq 'onoff') {
1.102 albertel 1549: $result .= &Apache::edit::select_or_text_arg
1.35 matthew 1550: ($description,$attr,['on','off'],$token);
1.20 matthew 1551: }
1.25 matthew 1552: $result .= '<br />';
1.20 matthew 1553: }
1554: return $result;
1555: }
1.1 matthew 1556:
1.21 matthew 1557:
1558: ###################################################################
1559: ## ##
1560: ## Insertion functions for editing plots ##
1561: ## ##
1562: ###################################################################
1563:
1.47 matthew 1564: sub insert_gnuplot {
1.29 matthew 1565: my $result = '';
1.20 matthew 1566: # plot attributes
1.61 matthew 1567: $result .= "\n<gnuplot ";
1.47 matthew 1568: foreach my $attr (keys(%gnuplot_defaults)) {
1.61 matthew 1569: $result .= "\n $attr=\"$gnuplot_defaults{$attr}->{'default'}\"";
1.20 matthew 1570: }
1.61 matthew 1571: $result .= ">";
1.47 matthew 1572: # Add the components (most are commented out for simplicity)
1.44 matthew 1573: # $result .= &insert_key();
1574: # $result .= &insert_axis();
1575: # $result .= &insert_title();
1576: # $result .= &insert_xlabel();
1577: # $result .= &insert_ylabel();
1.20 matthew 1578: $result .= &insert_curve();
1.50 matthew 1579: # close up the <gnuplot>
1.61 matthew 1580: $result .= "\n</gnuplot>";
1.45 matthew 1581: return $result;
1582: }
1583:
1.46 matthew 1584: sub insert_tics {
1585: my $result;
1586: $result .= &insert_xtics() . &insert_ytics;
1587: return $result;
1588: }
1589:
1.45 matthew 1590: sub insert_xtics {
1591: my $result;
1.46 matthew 1592: $result .= "\n <xtics ";
1.45 matthew 1593: foreach my $attr (keys(%tic_defaults)) {
1.61 matthew 1594: $result .= "\n $attr=\"$tic_defaults{$attr}->{'default'}\" ";
1.45 matthew 1595: }
1.61 matthew 1596: $result .= "/>";
1.45 matthew 1597: return $result;
1598: }
1599:
1600: sub insert_ytics {
1601: my $result;
1.46 matthew 1602: $result .= "\n <ytics ";
1.45 matthew 1603: foreach my $attr (keys(%tic_defaults)) {
1.61 matthew 1604: $result .= "\n $attr=\"$tic_defaults{$attr}->{'default'}\" ";
1.45 matthew 1605: }
1.61 matthew 1606: $result .= "/>";
1.20 matthew 1607: return $result;
1608: }
1609:
1610: sub insert_key {
1611: my $result;
1.61 matthew 1612: $result .= "\n <key ";
1.30 matthew 1613: foreach my $attr (keys(%key_defaults)) {
1.61 matthew 1614: $result .= "\n $attr=\"$key_defaults{$attr}->{'default'}\"";
1.20 matthew 1615: }
1.61 matthew 1616: $result .= " />";
1.20 matthew 1617: return $result;
1618: }
1619:
1620: sub insert_axis{
1621: my $result;
1.46 matthew 1622: $result .= "\n <axis ";
1.30 matthew 1623: foreach my $attr (keys(%axis_defaults)) {
1.61 matthew 1624: $result .= "\n $attr=\"$axis_defaults{$attr}->{'default'}\"";
1.20 matthew 1625: }
1.61 matthew 1626: $result .= " />";
1.20 matthew 1627: return $result;
1628: }
1.28 matthew 1629:
1.61 matthew 1630: sub insert_title { return "\n <title></title>"; }
1631: sub insert_xlabel { return "\n <xlabel></xlabel>"; }
1632: sub insert_ylabel { return "\n <ylabel></ylabel>"; }
1.20 matthew 1633:
1634: sub insert_label {
1635: my $result;
1.46 matthew 1636: $result .= "\n <label ";
1.30 matthew 1637: foreach my $attr (keys(%label_defaults)) {
1.61 matthew 1638: $result .= "\n $attr=\"".
1639: $label_defaults{$attr}->{'default'}."\"";
1.20 matthew 1640: }
1.61 matthew 1641: $result .= "></label>";
1.20 matthew 1642: return $result;
1643: }
1644:
1645: sub insert_curve {
1646: my $result;
1.41 matthew 1647: $result .= "\n <curve ";
1.30 matthew 1648: foreach my $attr (keys(%curve_defaults)) {
1.61 matthew 1649: $result .= "\n $attr=\"".
1650: $curve_defaults{$attr}->{'default'}."\"";
1.20 matthew 1651: }
1.61 matthew 1652: $result .= " >";
1653: $result .= &insert_data().&insert_data()."\n </curve>";
1.20 matthew 1654: }
1.4 matthew 1655:
1.20 matthew 1656: sub insert_function {
1657: my $result;
1.61 matthew 1658: $result .= "\n <function></function>";
1.20 matthew 1659: return $result;
1660: }
1.4 matthew 1661:
1.20 matthew 1662: sub insert_data {
1663: my $result;
1.61 matthew 1664: $result .= "\n <data></data>";
1.20 matthew 1665: return $result;
1666: }
1.4 matthew 1667:
1.48 matthew 1668: ##----------------------------------------------------------------------
1.20 matthew 1669: 1;
1670: __END__
1.4 matthew 1671:
1672:
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