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Diff for /loncom/cgi/graph.png between versions 1.4 and 1.16

version 1.4, 2001/12/21 14:45:36 version 1.16, 2002/12/13 21:33:30
Line 1 Line 1
 #!/usr/bin/perl  #!/usr/bin/perl
 #  #
 # The LearningOnline Network with CAPA  # $Id$
 #  #
 # Behrouz Minaei  # Copyright Michigan State University Board of Trustees
 # 9/13/2001, 9/25/2001  #
 # 10/6/2001, 10,9,2001  # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
   #
   # LON-CAPA is free software; you can redistribute it and/or modify
   # it under the terms of the GNU General Public License as published by
   # the Free Software Foundation; either version 2 of the License, or
   # (at your option) any later version.
   #
   # LON-CAPA is distributed in the hope that it will be useful,
   # but WITHOUT ANY WARRANTY; without even the implied warranty of
   # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   # GNU General Public License for more details.
   #
   # You should have received a copy of the GNU General Public License
   # along with LON-CAPA; if not, write to the Free Software
   # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #  #
   # /home/httpd/cgi-bin/graph.gif
   #
   # http://www.lon-capa.org/
   #
   # The LearningOnline Network with CAPA
   # Behrouz Minaei
   # YEAR=2001
   # 9/13/01, 9/25/01, 10/6/01, 10/9/01, 12/25/01
   # YEAR=2002
   # 2/1/, 5/13, 5/15
 # A CGI script that dynamically outputs a graphical chart for lonstatistics.  # A CGI script that dynamically outputs a graphical chart for lonstatistics.
   # 
   #### 
   
 use strict;  use strict;
 use GD::Graph::bars3d;  use GD::Graph::bars;
 use GD::Graph::colour;  use GD::Graph::colour;
 use GD::Graph::Data;  use GD::Graph::Data;
   
 $|=1;   # Autoflush after each print/write  $|=1;   # Autoflush after each print/write
 my ($cid, $Tag, $Max, $PNo, $data) = split(/&/,$ENV{'QUERY_STRING'});  my ($Titr,$xlab,$ylab,$Max,$PNo,$data1,$data2)=split(/&/,$ENV{'QUERY_STRING'});
   
   my @data11=split(/\,/,$data1);
   my @data12=split(/\,/,$data2);
   
 my @data1=split(/\,/,$data);  
      
 my @xlabels;  my @xlabels;
 for (my $nIdx=0; $nIdx<$PNo; $nIdx++ ) {  for (my $nIdx=0; $nIdx<$PNo; $nIdx++ ) {
     $xlabels[$nIdx]=$nIdx+1;      $xlabels[$nIdx]=$nIdx+1;
 }   } 
 my @data =(\@xlabels,\@data1);  
   
 my $Range;  
 if ( $PNo > 10 ) {$Range = 30*$PNo;}  
 else { $Range = 300+30*$PNo; }  
   
 if ( $Max <= 1 ) { $Max = 1; }  
 elsif ( $Max <= 10 ) { $Max = 10; }  
 elsif ( $Max >= 60 ) { $Max = 100; }  
   
 my $MyGraph = GD::Graph::bars3d->new($Range, 400);  my @data =(\@xlabels,\@data11,\@data12);
   
   my $Range1;
   my $Range2;
   
   if ($xlab=~/^Concepts$/){
       $Range1=270;
       $Range2=200;
   } else {
       $Range1=450;#250+30*$PNo; 
       $Range2=200; 
   }
   
   
   my $MyGraph = GD::Graph::bars->new($Range1,$Range2);
   
 $MyGraph->set(   $MyGraph->set( 
     x_label         => 'Problems #',      x_label         => $xlab,
     y_label         => $Tag,      y_label         => $ylab,
     title           => 'LON-CAPA Graphical Chart, Course: '.$cid,      long_ticks      => 1,
       tick_length     => 0,
       x_ticks         => 0,
       title           => $Titr,
     y_max_value     => $Max,      y_max_value     => $Max,
     y_tick_number   => 10,  #    y_tick_number   => $ytic,
     y_label_skip    => 1,      y_label_skip    => 1,   
     x_label_skip    => 2,  
           dclrs           => [ qw( lgreen dgreen lyellow lpurple cyan lorange)],
     # colors  
     dclrs           => [ qw( green lblue lyellow lpurple cyan lorange)],  
           
     # shadows      bar_spacing     => 10,
     bar_spacing     => 4,      cumulate        => 2,
     shadow_depth    => 1,      zero_axis        => 1,
     shadowclr       => 'dred',  
   #    legend_placement    => 'RT',
   
       fgclr               => 'black',
       boxclr              => 'white',
       accentclr           => 'dblue',
       valuesclr           => '#ffff77',
       l_margin            => 10,
       b_margin            => 10,
       r_margin            => 10,
       t_margin            => 10,
   
     transparent     => 0,      transparent     => 0,
 ) or warn $MyGraph->error;   ) or warn $MyGraph->error; 
   
 # Tell the server we are sending a gif graphic  #if ($xlab=~/^Concepts$/){
   #    $MyGraph->set_legend( 'Correct Answers', 'Incorrect Answers');
   #}
   
   
   # Tell the server we are sending a png graphic
 print <<END;  print <<END;
 Content-type: image/gif  Content-type: image/png
   
 END  END
   
   #$MyGraph->set_y_label_font('/home/httpd/cgi-bin/cetus.ttf', 16);
   #$MyGraph->set_x_label_font('/home/httpd/cgi-bin/cetus.ttf', 16);
   #$MyGraph->set_y_axis_font('/home/httpd/cgi-bin/cetus.ttf', 12);
   #$MyGraph->set_x_axis_font('/home/httpd/cgi-bin/cetus.ttf', 12);
   #$MyGraph->set_title_font('/home/httpd/cgi-bin/cetus.ttf', 18);
   #$MyGraph->set_legend_font('/home/httpd/cgi-bin/cetus.ttf', 10);
   #$MyGraph->set_values_font('/home/httpd/cgi-bin/cetus.ttf', 10);
   
   
 my $BinaryData=$MyGraph->plot(\@data)->png;  my $BinaryData=$MyGraph->plot(\@data)->png;
 undef $MyGraph;  undef $MyGraph;
 binmode(STDOUT);  binmode(STDOUT);
 open IMG,"|pngtopnm|ppmtogif 2>/dev/null"; # convert into a gif image  #open IMG,"|pngtopnm|ppmtogif 2>/dev/null"; # convert into a gif image
 print IMG $BinaryData; # output image  #print IMG $BinaryData; # output image
 $|=1; # be sure to flush before closing  #$|=1; # be sure to flush before closing
 close IMG;  #close IMG;
   print $BinaryData;
Removed from v.1.4  
changed lines
  Added in v.1.16

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