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Diff for /loncom/cgi/graph.png between versions 1.1 and 1.4

version 1.1, 2001/10/10 15:26:00 version 1.4, 2001/12/21 14:45:36
Line 9 Line 9
 # 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::bars;  use GD::Graph::bars3d;
 use GD::Graph::colour;  use GD::Graph::colour;
 use GD::Graph::Data;  use GD::Graph::Data;
   
   $|=1;   # Autoflush after each print/write
 my ($cid, $Tag, $Max, $PNo, $data) = split(/&/,$ENV{'QUERY_STRING'});  my ($cid, $Tag, $Max, $PNo, $data) = split(/&/,$ENV{'QUERY_STRING'});
   
 my @data1=split(/\,/,$data);  my @data1=split(/\,/,$data);
Line 23  for (my $nIdx=0; $nIdx<$PNo; $nIdx++ ) { Line 24  for (my $nIdx=0; $nIdx<$PNo; $nIdx++ ) {
 }   } 
 my @data =(\@xlabels,\@data1);  my @data =(\@xlabels,\@data1);
   
 #print "Content-type: text/html\n\n";  
 #print $ENV{'QUERY_STRING';  
 #print "<br>";  
 #print $Max;  
 #print "<br>";  
 #print $PNo;  
 #print "<br>";  
 #print $data;  
 #exit;  
   
 my $Range;  my $Range;
 if ( $PNo > 10 ) {$Range = 30*$PNo;}  if ( $PNo > 10 ) {$Range = 30*$PNo;}
 else { $Range = 300+30*$PNo; }  else { $Range = 300+30*$PNo; }
   
 if ( $Max < 1 ) { $Max = 1; }  if ( $Max <= 1 ) { $Max = 1; }
 elsif ( $Max < 10 ) { $Max = 10; }  elsif ( $Max <= 10 ) { $Max = 10; }
 elsif ( $Max < 100 ) { $Max = 100; }  elsif ( $Max >= 60 ) { $Max = 100; }
   
 my $MyGraph = GD::Graph::bars->new($Range, 400);  my $MyGraph = GD::Graph::bars3d->new($Range, 400);
   
 $MyGraph->set(   $MyGraph->set( 
     x_label         => 'Problems #',      x_label         => 'Problems #',
Line 53  $MyGraph->set( Line 44  $MyGraph->set(
     x_label_skip    => 2,      x_label_skip    => 2,
           
     # colors      # colors
     dclrs           => [ qw(green lblue lyellow lpurple cyan lorange)],      dclrs           => [ qw( green lblue lyellow lpurple cyan lorange)],
           
     # shadows      # shadows
     bar_spacing     => 4,      bar_spacing     => 4,
Line 72  END Line 63  END
 my $BinaryData=$MyGraph->plot(\@data)->png;  my $BinaryData=$MyGraph->plot(\@data)->png;
 undef $MyGraph;  undef $MyGraph;
 binmode(STDOUT);  binmode(STDOUT);
 open IMG,"|pngtopnm|ppmtogif"; # 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;
   
   
   
   
   
   
   
   
   
   
   
   
   
   
Removed from v.1.1  
changed lines
  Added in v.1.4

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