--- loncom/cgi/graph.png	2003/01/08 03:31:54	1.17
+++ loncom/cgi/graph.png	2003/01/13 17:41:45	1.20
@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 #
-# $Id: graph.png,v 1.17 2003/01/08 03:31:54 minaeibi Exp $
+# $Id: graph.png,v 1.20 2003/01/13 17:41:45 minaeibi Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -31,7 +31,7 @@
 # YEAR=2002
 # 2/1/, 5/13, 5/15
 # YEAR=2003
-# 1/7/
+# 1/7/, 1/13
 # A CGI script that dynamically outputs a graphical chart for lonstatistics.
 # 
 #### 
@@ -46,16 +46,19 @@ my ($Titr,$xlab,$ylab,$Max,$PNo,$data1,$
 
 my @data11=split(/\,/,$data1);
 my @data12=split(/\,/,$data2);
+my $skip_x = 1;
+my $bar_space=10;
 
 my @xlabels;
 
-if ($xlab=~/^Percentage$/){
+if ($Titr =~ /^Percentage$/){
     for (my $nIdx=0; $nIdx<$PNo; $nIdx++ ) {
-        $xlabels[$nIdx]=$data11[$nIdx];
+        $xlabels[$nIdx]=$nIdx;
     }
     @data11=();
     @data11=split(/\,/,$data2);
-    @data12=();  
+    @data12=();
+    $Titr = '';
 } else {
      for (my $nIdx=0; $nIdx<$PNo; $nIdx++ ) {
          $xlabels[$nIdx]=$nIdx+1;
@@ -65,17 +68,16 @@ if ($xlab=~/^Percentage$/){
 my @data =(\@xlabels,\@data11,\@data12);
 
 my $Range1;
-my $Range2;
+my $Range2 = 200;
 
 if ($xlab=~/^Concepts$/){
     $Range1=270;
-    $Range2=200;
-} elsif ($xlab=~/^Percentage$/){
-    $Range1=250+20*$PNo; 
-    $Range2=200; 
-} else {
+} elsif ($xlab=~/^Problem_number$/){
     $Range1=450;
-    $Range2=200;
+} else {
+    $Range1=($PNo==100) ? 800 : (120+$PNo*10); 
+    $skip_x=5;
+    $bar_space=1;
 }
 
 
@@ -90,11 +92,12 @@ $MyGraph->set(
     title           => $Titr,
     y_max_value     => $Max,
 #    y_tick_number   => $ytic,
-    y_label_skip    => 1,   
+    y_label_skip    => 5,
+    x_label_skip    => $skip_x,   
 
     dclrs           => [ qw( lgreen dgreen lyellow lpurple cyan lorange)],
     
-    bar_spacing     => 10,
+    bar_spacing     => $bar_space,
     cumulate        => 2,
     zero_axis        => 1,