Troubleshooting:

1. Missing fonts:

a) Problem:

/var/www/html/base-php4/base_graph_display.php:350: WARNING: Verdana could not be resolved into a readable font file. Check "Image/Canvas/Fonts/fontmap.txt" in your PEAR directory. This directory can be found by pear 'config-show | grep "PEAR directory"'. Falling back to default font without the possibility to adjust any font sizes, referer: http://localhost/base-php4/base_graph_main.php

b) Solution

Make sure, the line starting with "Verdana" in fontmap.txt
contains the path to a readable font file. 

The file fontmap.txt can be found in the PEAR directory
under Image/Canvas/Fonts/, e.g.:

/usr/share/pear/Image/Canvas/Fonts/fontmap.txt

One possibility on fedora 9 could be, for example:

rpm -Uvh dejavu-lgc-fonts-2.24-3.fc9.noarch.rpm

vim /usr/share/pear/Image/Canvas/Fonts/fontmap.txt

Verdana,/usr/share/fonts/dejavu/DejaVuLGCSans.ttf
Verdana Bold,/usr/share/fonts/dejavu/DejaVuLGCSans-Bold.ttf
Verdana Bold Italic,/usr/share/fonts/dejavu/DejaVuLGCSans-BoldOblique.ttf
Verdana Italic,/usr/share/fonts/dejavu/DejaVuSans-Oblique.ttf



BTW: A different font name can be chosen in base_graph_display.php.




2. Missing legends with pie-charts:

a) Problem:

All of the pie-charts lack the legends.  You do not know which colour
stands for what.

b) Solution:

This is a bug in the PEAR::Image::Graph library.  A quick fix for this
has been proposed as PEAR bug no. 8055:

	http://pear.php.net/bugs/8055

And here is the patch against pear/Image/Graph/Plot/Pie.php:



--- Pie.php.orig	2007-03-14 00:26:21.000000000 +0100
+++ Pie.php	2008-06-09 14:08:17.000000000 +0200
@@ -499,7 +499,7 @@ class Image_Graph_Plot_Pie extends Image
         if (is_array($this->_dataset)) {
             
             $this->_canvas->startGroup(get_class($this) . '_' . $this->_title);
-            $this->_clip(true);
+            //$this->_clip(true);
             
             $totals = $this->_getTotals();
             $totals['CENTER_X'] = (int) (($this->_left + $this->_right) / 2);
@@ -613,11 +613,11 @@ class Image_Graph_Plot_Pie extends Image
                 }
             }
             unset($keys);
-            $this->_clip(false);
+            //$this->_clip(false);
             $this->_canvas->endGroup();
         }
     }
 
 }
 
-?>
\ No newline at end of file
+?>