[BACK]Return to lonplot.pm CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / xml

Diff for /loncom/xml/lonplot.pm between versions 1.54 and 1.61

version 1.54, 2002/03/01 14:03:50 version 1.61, 2002/03/22 16:04:09
Line 91  my %linestyles = Line 91  my %linestyles =
      yerrorbars    => [3,4],       yerrorbars    => [3,4],
      xyerrorbars    => [4,6],       xyerrorbars    => [4,6],
      boxes          => 3,       boxes          => 3,
 #     boxerrorbars   => [3,4,5],  
 #     boxxyerrorbars => [4,6,7],  
 #     financebars    => 5,  
 #     candlesticks   => 5,  
      vector    => 4       vector    => 4
     );          );    
   
Line 144  A <b>gnuplot</b> tag can contain the fol Line 140  A <b>gnuplot</b> tag can contain the fol
     <dd> Allows specification of the x and y coordinate 'tics' on the axes.      <dd> Allows specification of the x and y coordinate 'tics' on the axes.
 This is mostly used to adjust the grid lines when a grid is displayed.  This is mostly used to adjust the grid lines when a grid is displayed.
 </dl>  </dl>
   If you are having trouble with your plot, please read the help
   available on Plot Curve.
 ENDPLOTHELP  ENDPLOTHELP
   
 my %gnuplot_defaults =   my %gnuplot_defaults = 
Line 360  first tag will be the X data and the sec Line 358  first tag will be the X data and the sec
 </p>  </p>
     <dt> Curve Function      <dt> Curve Function
     <dd> The <b>function</b> tag allows you to specify the curve to be       <dd> The <b>function</b> tag allows you to specify the curve to be 
 plotted as a formula that gnuplot can understand.  Be careful using this  plotted as a formula that gnuplot can understand.  <b>Be careful using this
 tag - it is surprisingly easy to give gnuplot a function it cannot deal  tag.</b>  It is surprisingly easy to give gnuplot a function it cannot deal
 with properly.  Be explicit: 2*sin(2*3.141592*x/4) will work but  with properly.  Be explicit: 2*sin(2*3.141592*x/4) will work but
 2sin(2*3.141592x/4) will not.  If you do not receive any errors in the  2sin(2*3.141592x/4) will not.  If you do not receive any errors in the
 gnuplot data but still do not have an image produced, it is likely there  gnuplot data but still do not have an image produced, it is likely there
Line 369  is an error in your <b>function</b> tag. Line 367  is an error in your <b>function</b> tag.
 </dl>  </dl>
 ENDCURVEHELP  ENDCURVEHELP
   
   my @curve_edit_order = ('color','name','linestyle','pointsize');
   
 my %curve_defaults =   my %curve_defaults = 
     (      (
      color     => {       color     => {
Line 391  my %curve_defaults = Line 391  my %curve_defaults =
  description => 'Line style',   description => 'Line style',
  edit_type   => 'choice',   edit_type   => 'choice',
  choices     => [keys(%linestyles)]   choices     => [keys(%linestyles)]
  }   },
   # gnuplots term=gif driver does not handle linewidth :(
   #     linewidth => {
   #         default     => 1,
   #         test        => $int_test,
   #         description => 'Line width (may not apply to all line styles)',
   #         edit_type   => 'choice',
   #         choices     => [1,2,3,4,5,6,7,8,9,10]
   #         },
        pointsize => {
            default     => 1,
            test        => $int_test,
            description => 'point size (may not apply to all line styles)',
            edit_type   => 'choice',
            choices     => [0,1,2,3,4,5,6,7,8,9,10]
            }
      );       );
   
 ###################################################################  ###################################################################
Line 414  sub start_gnuplot { Line 429  sub start_gnuplot {
       'xtics','ytics'));        'xtics','ytics'));
     push (@Apache::lonxml::namespace,'lonplot');      push (@Apache::lonxml::namespace,'lonplot');
     if ($target eq 'web' || $target eq 'tex') {      if ($target eq 'web' || $target eq 'tex') {
  my $inside = &Apache::lonxml::get_all_text("/gnuplot",$$parser[-1]);  
  $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);  
  &Apache::lonxml::newparser($parser,\$inside);  
  &get_attributes(\%plot,\%gnuplot_defaults,$parstack,$safeeval,   &get_attributes(\%plot,\%gnuplot_defaults,$parstack,$safeeval,
  $tagstack->[-1]);   $tagstack->[-1]);
     } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
Line 441  sub end_gnuplot { Line 453  sub end_gnuplot {
     &Apache::lonxml::deregister('Apache::lonplot',      &Apache::lonxml::deregister('Apache::lonplot',
  ('title','xlabel','ylabel','key','axis','label','curve'));   ('title','xlabel','ylabel','key','axis','label','curve'));
     my $result = '';      my $result = '';
       my $randnumber;
       # need to call rand everytime start_script would evaluate, as the
       # safe space rand number generator and the global rand generator 
       # are not seperate
       if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
    $target eq 'answer') {
         $randnumber=int(rand(1000));
       }
     if ($target eq 'web' || $target eq 'tex') {      if ($target eq 'web' || $target eq 'tex') {
  &check_inputs(); # Make sure we have all the data we need   &check_inputs(); # Make sure we have all the data we need
  ##   ##
  ## Determine filename   ## Determine filename
  my $tmpdir = '/home/httpd/perl/tmp/';   my $tmpdir = '/home/httpd/perl/tmp/';
  my $filename = $ENV{'user.name'}.'_'.$ENV{'user.domain'}.   my $filename = $ENV{'user.name'}.'_'.$ENV{'user.domain'}.
     '_'.time.'_'.$$.int(rand(1000)).'_plot.data';      '_'.time.'_'.$$.$randnumber.'_plot.data';
  ## Write the plot description to the file   ## Write the plot description to the file
  &write_gnuplot_file($tmpdir,$filename,$target);   &write_gnuplot_file($tmpdir,$filename,$target);
  $filename = &Apache::lonnet::escape($filename);   $filename = &Apache::lonnet::escape($filename);
Line 571  sub start_title { Line 591  sub start_title {
     my $result='';      my $result='';
     if ($target eq 'web' || $target eq 'tex') {      if ($target eq 'web' || $target eq 'tex') {
  $title = &Apache::lonxml::get_all_text("/title",$$parser[-1]);   $title = &Apache::lonxml::get_all_text("/title",$$parser[-1]);
    $title=&Apache::run::evaluate($title,$safeeval,$$parstack[-1]);
  $title =~ s/\n/ /g;   $title =~ s/\n/ /g;
  if (length($title) > $max_str_len) {   if (length($title) > $max_str_len) {
     $title = substr($title,0,$max_str_len);      $title = substr($title,0,$max_str_len);
Line 580  sub start_title { Line 601  sub start_title {
  my $text=&Apache::lonxml::get_all_text("/title",$$parser[-1]);   my $text=&Apache::lonxml::get_all_text("/title",$$parser[-1]);
  $result.=&Apache::edit::end_row().   $result.=&Apache::edit::end_row().
     &Apache::edit::start_spanning_row().      &Apache::edit::start_spanning_row().
     &Apache::edit::editfield('',$text,'',60,1);      &Apache::edit::textfield('',$text,'',60);
     } elsif ($target eq 'modified') {      } elsif ($target eq 'modified') {
  my $text=$$parser[-1]->get_text("/title");   my $text=$$parser[-1]->get_text("/title");
  $result.=&Apache::edit::rebuild_tag($token);   $result.=&Apache::edit::rebuild_tag($token);
Line 604  sub start_xlabel { Line 625  sub start_xlabel {
     my $result='';      my $result='';
     if ($target eq 'web' || $target eq 'tex') {      if ($target eq 'web' || $target eq 'tex') {
  $xlabel = &Apache::lonxml::get_all_text("/xlabel",$$parser[-1]);   $xlabel = &Apache::lonxml::get_all_text("/xlabel",$$parser[-1]);
    $xlabel=&Apache::run::evaluate($xlabel,$safeeval,$$parstack[-1]);
  $xlabel =~ s/\n/ /g;   $xlabel =~ s/\n/ /g;
  if (length($xlabel) > $max_str_len) {   if (length($xlabel) > $max_str_len) {
     $xlabel = substr($xlabel,0,$max_str_len);      $xlabel = substr($xlabel,0,$max_str_len);
Line 613  sub start_xlabel { Line 635  sub start_xlabel {
  my $text=&Apache::lonxml::get_all_text("/xlabel",$$parser[-1]);   my $text=&Apache::lonxml::get_all_text("/xlabel",$$parser[-1]);
  $result.=&Apache::edit::end_row().   $result.=&Apache::edit::end_row().
     &Apache::edit::start_spanning_row().      &Apache::edit::start_spanning_row().
     &Apache::edit::editfield('',$text,'',60,1);      &Apache::edit::textfield('',$text,'',60);
     } elsif ($target eq 'modified') {      } elsif ($target eq 'modified') {
  my $text=$$parser[-1]->get_text("/xlabel");   my $text=$$parser[-1]->get_text("/xlabel");
  $result.=&Apache::edit::rebuild_tag($token);   $result.=&Apache::edit::rebuild_tag($token);
Line 638  sub start_ylabel { Line 660  sub start_ylabel {
     my $result='';      my $result='';
     if ($target eq 'web' || $target eq 'tex') {      if ($target eq 'web' || $target eq 'tex') {
  $ylabel = &Apache::lonxml::get_all_text("/ylabel",$$parser[-1]);   $ylabel = &Apache::lonxml::get_all_text("/ylabel",$$parser[-1]);
    $ylabel = &Apache::run::evaluate($ylabel,$safeeval,$$parstack[-1]);
  $ylabel =~ s/\n/ /g;   $ylabel =~ s/\n/ /g;
  if (length($ylabel) > $max_str_len) {   if (length($ylabel) > $max_str_len) {
     $ylabel = substr($ylabel,0,$max_str_len);      $ylabel = substr($ylabel,0,$max_str_len);
Line 647  sub start_ylabel { Line 670  sub start_ylabel {
  my $text = &Apache::lonxml::get_all_text("/ylabel",$$parser[-1]);   my $text = &Apache::lonxml::get_all_text("/ylabel",$$parser[-1]);
  $result .= &Apache::edit::end_row().   $result .= &Apache::edit::end_row().
     &Apache::edit::start_spanning_row().      &Apache::edit::start_spanning_row().
     &Apache::edit::editfield('',$text,'',60,1);      &Apache::edit::textfield('',$text,'',60);
     } elsif ($target eq 'modified') {      } elsif ($target eq 'modified') {
  my $text=$$parser[-1]->get_text("/ylabel");   my $text=$$parser[-1]->get_text("/ylabel");
  $result.=&Apache::edit::rebuild_tag($token);   $result.=&Apache::edit::rebuild_tag($token);
Line 675  sub start_label { Line 698  sub start_label {
  &get_attributes(\%label,\%label_defaults,$parstack,$safeeval,   &get_attributes(\%label,\%label_defaults,$parstack,$safeeval,
     $tagstack->[-1]);      $tagstack->[-1]);
  my $text = &Apache::lonxml::get_all_text("/label",$$parser[-1]);   my $text = &Apache::lonxml::get_all_text("/label",$$parser[-1]);
    $text = &Apache::run::evaluate($text,$safeeval,$$parstack[-1]);
  $text =~ s/\n/ /g;   $text =~ s/\n/ /g;
  $text = substr($text,0,$max_str_len) if (length($text) > $max_str_len);   $text = substr($text,0,$max_str_len) if (length($text) > $max_str_len);
  $label{'text'} = $text;   $label{'text'} = $text;
Line 685  sub start_label { Line 709  sub start_label {
  my $text = &Apache::lonxml::get_all_text("/label",$$parser[-1]);   my $text = &Apache::lonxml::get_all_text("/label",$$parser[-1]);
  $result .= &Apache::edit::end_row().   $result .= &Apache::edit::end_row().
     &Apache::edit::start_spanning_row().      &Apache::edit::start_spanning_row().
     &Apache::edit::editfield('',$text,'',60,1);      &Apache::edit::textfield('',$text,'',60);
     } elsif ($target eq 'modified') {      } elsif ($target eq 'modified') {
  &Apache::edit::get_new_args   &Apache::edit::get_new_args
     ($token,$parstack,$safeeval,keys(%label_defaults));      ($token,$parstack,$safeeval,keys(%label_defaults));
Line 720  sub start_curve { Line 744  sub start_curve {
     } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
  $result .= &Apache::edit::tag_start($target,$token,'Curve');   $result .= &Apache::edit::tag_start($target,$token,'Curve');
  $result .= &help_win($curve_help_text);   $result .= &help_win($curve_help_text);
  $result .= &edit_attributes($target,$token,\%curve_defaults);   $result .= &edit_attributes($target,$token,\%curve_defaults,
                                       \@curve_edit_order);
     } elsif ($target eq 'modified') {      } elsif ($target eq 'modified') {
  my $constructtag=&Apache::edit::get_new_args   my $constructtag=&Apache::edit::get_new_args
     ($token,$parstack,$safeeval,keys(%curve_defaults));      ($token,$parstack,$safeeval,keys(%curve_defaults));
Line 753  sub start_function { Line 778  sub start_function {
     &Apache::lonxml::warning('Use of <function> precludes use of <data>.  The <data> will be omitted in favor of the <function> declaration.');      &Apache::lonxml::warning('Use of <function> precludes use of <data>.  The <data> will be omitted in favor of the <function> declaration.');
     delete $curves[-1]->{'data'} ;      delete $curves[-1]->{'data'} ;
  }   }
  $curves[-1]->{'function'} =           my $function = &Apache::lonxml::get_all_text("/function",$$parser[-1]);
     &Apache::lonxml::get_all_text("/function",$$parser[-1]);   $function = &Apache::run::evaluate($function,$safeeval,$$parstack[-1]);
    $curves[-1]->{'function'} = $function; 
     } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
  $result .= &Apache::edit::tag_start($target,$token,'Gnuplot compatible curve function');   $result .= &Apache::edit::tag_start($target,$token,'Gnuplot compatible curve function');
  my $text = &Apache::lonxml::get_all_text("/function",$$parser[-1]);   my $text = &Apache::lonxml::get_all_text("/function",$$parser[-1]);
  $result .= &Apache::edit::end_row().   $result .= &Apache::edit::end_row().
     &Apache::edit::start_spanning_row().      &Apache::edit::start_spanning_row().
     &Apache::edit::editfield('',$text,'',60,1);      &Apache::edit::textfield('',$text,'',60);
     } elsif ($target eq 'modified') {      } elsif ($target eq 'modified') {
  $result.=&Apache::edit::rebuild_tag($token);   $result.=&Apache::edit::rebuild_tag($token);
  my $text=$$parser[-1]->get_text("/function");   my $text=$$parser[-1]->get_text("/function");
Line 791  sub start_data { Line 817  sub start_data {
     delete($curves[-1]->{'function'});      delete($curves[-1]->{'function'});
  }   }
  my $datatext = &Apache::lonxml::get_all_text("/data",$$parser[-1]);   my $datatext = &Apache::lonxml::get_all_text("/data",$$parser[-1]);
    $datatext=&Apache::run::evaluate($datatext,$safeeval,$$parstack[-1]);
  # Deal with cases where we're given an array...   # Deal with cases where we're given an array...
  if ($datatext =~ /^\@/) {   if ($datatext =~ /^\@/) {
     $datatext = &Apache::run::run('return "'.$datatext.'"',      $datatext = &Apache::run::run('return "'.$datatext.'"',
Line 835  sub start_data { Line 862  sub start_data {
  my $text = &Apache::lonxml::get_all_text("/data",$$parser[-1]);   my $text = &Apache::lonxml::get_all_text("/data",$$parser[-1]);
  $result .= &Apache::edit::end_row().   $result .= &Apache::edit::end_row().
     &Apache::edit::start_spanning_row().      &Apache::edit::start_spanning_row().
     &Apache::edit::editfield('',$text,'',60,1);      &Apache::edit::textfield('',$text,'',60);
     } elsif ($target eq 'modified') {      } elsif ($target eq 'modified') {
  $result.=&Apache::edit::rebuild_tag($token);   $result.=&Apache::edit::rebuild_tag($token);
  my $text=$$parser[-1]->get_text("/data");   my $text=$$parser[-1]->get_text("/data");
Line 1005  sub write_gnuplot_file { Line 1032  sub write_gnuplot_file {
  $curve->{'function'}.' title "'.   $curve->{'function'}.' title "'.
  $curve->{'name'}.'" with '.   $curve->{'name'}.'" with '.
  $curve->{'linestyle'};   $curve->{'linestyle'};
   #
   # gnuplot's term=gif driver does not handle linewidths :(
   # . ' linewidth '. $curve->{'linewidth'};
   #
               if (($curve->{'linestyle'} eq 'points')      ||
                   ($curve->{'linestyle'} eq 'linespoints') ||
                   ($curve->{'linestyle'} eq 'errorbars')   ||
                   ($curve->{'linestyle'} eq 'xerrorbars')  ||
                   ($curve->{'linestyle'} eq 'yerrorbars')  ||
                   ($curve->{'linestyle'} eq 'xyerrorbars')) {
                   $gnuplot_input.=' pointsize '.$curve->{'pointsize'};
               }
  } elsif (exists($curve->{'data'})) {   } elsif (exists($curve->{'data'})) {
     # Store data values in $datatext      # Store data values in $datatext
     my $datatext = '';      my $datatext = '';
Line 1101  sub edit_attributes { Line 1140  sub edit_attributes {
 sub insert_gnuplot {  sub insert_gnuplot {
     my $result = '';      my $result = '';
     #  plot attributes      #  plot attributes
     $result .= "<gnuplot \n";      $result .= "\n<gnuplot ";
     foreach my $attr (keys(%gnuplot_defaults)) {      foreach my $attr (keys(%gnuplot_defaults)) {
  $result .= "     $attr=\"$gnuplot_defaults{$attr}->{'default'}\"\n";   $result .= "\n     $attr=\"$gnuplot_defaults{$attr}->{'default'}\"";
     }      }
     $result .= ">\n";      $result .= ">";
     # Add the components (most are commented out for simplicity)      # Add the components (most are commented out for simplicity)
     # $result .= &insert_key();      # $result .= &insert_key();
     # $result .= &insert_axis();      # $result .= &insert_axis();
Line 1114  sub insert_gnuplot { Line 1153  sub insert_gnuplot {
     # $result .= &insert_ylabel();          # $result .= &insert_ylabel();    
     $result .= &insert_curve();      $result .= &insert_curve();
     # close up the <gnuplot>      # close up the <gnuplot>
     $result .= "</gnuplot>\n";      $result .= "\n</gnuplot>";
     return $result;      return $result;
 }  }
   
Line 1128  sub insert_xtics { Line 1167  sub insert_xtics {
     my $result;      my $result;
     $result .= "\n    <xtics ";      $result .= "\n    <xtics ";
     foreach my $attr (keys(%tic_defaults)) {      foreach my $attr (keys(%tic_defaults)) {
  $result .= "$attr=\"$tic_defaults{$attr}->{'default'}\" ";   $result .= "\n        $attr=\"$tic_defaults{$attr}->{'default'}\" ";
     }      }
     $result .= "/>\n";      $result .= "/>";
     return $result;      return $result;
 }  }
   
Line 1138  sub insert_ytics { Line 1177  sub insert_ytics {
     my $result;      my $result;
     $result .= "\n    <ytics ";      $result .= "\n    <ytics ";
     foreach my $attr (keys(%tic_defaults)) {      foreach my $attr (keys(%tic_defaults)) {
  $result .= "$attr=\"$tic_defaults{$attr}->{'default'}\" ";   $result .= "\n        $attr=\"$tic_defaults{$attr}->{'default'}\" ";
     }      }
     $result .= "/>\n";      $result .= "/>";
     return $result;      return $result;
 }  }
   
 sub insert_key {  sub insert_key {
     my $result;      my $result;
     $result .= "\n    <key \n";      $result .= "\n    <key ";
     foreach my $attr (keys(%key_defaults)) {      foreach my $attr (keys(%key_defaults)) {
  $result .= "         $attr=\"$key_defaults{$attr}->{'default'}\"\n";   $result .= "\n         $attr=\"$key_defaults{$attr}->{'default'}\"";
     }      }
     $result .= "   />\n";      $result .= " />";
     return $result;      return $result;
 }  }
   
Line 1158  sub insert_axis{ Line 1197  sub insert_axis{
     my $result;      my $result;
     $result .= "\n    <axis ";      $result .= "\n    <axis ";
    foreach my $attr (keys(%axis_defaults)) {     foreach my $attr (keys(%axis_defaults)) {
  $result .= "         $attr=\"$axis_defaults{$attr}->{'default'}\"\n";   $result .= "\n         $attr=\"$axis_defaults{$attr}->{'default'}\"";
     }      }
     $result .= "   />\n";      $result .= " />";
     return $result;      return $result;
 }  }
   
 sub insert_title { return "\n    <title></title>\n"; }  sub insert_title  { return "\n    <title></title>"; }
 sub insert_xlabel { return "\n    <xlabel></xlabel>\n"; }  sub insert_xlabel { return "\n    <xlabel></xlabel>"; }
 sub insert_ylabel { return "\n    <ylabel></ylabel>\n"; }  sub insert_ylabel { return "\n    <ylabel></ylabel>"; }
   
 sub insert_label {  sub insert_label {
     my $result;      my $result;
     $result .= "\n    <label ";      $result .= "\n    <label ";
     foreach my $attr (keys(%label_defaults)) {      foreach my $attr (keys(%label_defaults)) {
  $result .= '         '.$attr.'="'.   $result .= "\n         $attr=\"".
     $label_defaults{$attr}->{'default'}."\"\n";              $label_defaults{$attr}->{'default'}."\"";
     }      }
     $result .= "   ></label>\n";      $result .= "></label>";
     return $result;      return $result;
 }  }
   
Line 1183  sub insert_curve { Line 1222  sub insert_curve {
     my $result;      my $result;
     $result .= "\n    <curve ";      $result .= "\n    <curve ";
     foreach my $attr (keys(%curve_defaults)) {      foreach my $attr (keys(%curve_defaults)) {
  $result .= '         '.$attr.'="'.   $result .= "\n         $attr=\"".
     $curve_defaults{$attr}->{'default'}."\"\n";      $curve_defaults{$attr}->{'default'}."\"";
     }      }
     $result .= "    >\n";      $result .= " >";
     $result .= &insert_data().&insert_data()."</curve>\n";      $result .= &insert_data().&insert_data()."\n    </curve>";
 }  }
   
 sub insert_function {  sub insert_function {
     my $result;      my $result;
     $result .= "<function></function>\n";      $result .= "\n        <function></function>";
     return $result;      return $result;
 }  }
   
 sub insert_data {  sub insert_data {
     my $result;      my $result;
     $result .= "     <data></data>\n";      $result .= "\n        <data></data>";
     return $result;      return $result;
 }  }
   
Removed from v.1.54  
changed lines
  Added in v.1.61

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>