add config option for showing smooth (curved) graphs

2 files changed, 7 insertions, 0 deletions

diff --git a/conf/config.php b/conf/config.php
index c734b09..685589d 100644
--- a/conf/config.php
+++ b/conf/config.php
@@ -48,6 +48,9 @@ $CONFIG['graph_type'] = 'png';
 # use the negative X-axis in I/O graphs
 $CONFIG['negative_io'] = false;
 
+# create smooth graphs (rrdtool -E)
+$CONFIG['graph_smooth'] = false;
+
 # browser cache time for the graphs (in seconds)
 $CONFIG['cache'] = 90;
 
diff --git a/type/Default.class.php b/type/Default.class.php
index dfbf2da..42d5090 100644
--- a/type/Default.class.php
+++ b/type/Default.class.php
@@ -21,6 +21,7 @@ class Type_Default {
         var $heigth;
         var $graph_type;
         var $negative_io;
+        var $graph_smooth;
 
         var $files;
         var $tinstances;
@@ -40,6 +41,7 @@ class Type_Default {
                 if (empty($this->heigth)) $this->heigth = $config['heigth'];
                 $this->graph_type = $config['graph_type'];
                 $this->negative_io = $config['negative_io'];
+                $this->graph_smooth = $config['graph_smooth'];
         }
 
         function rainbow_colors() {
@@ -211,6 +213,8 @@ class Type_Default {
                 }
                 if ($this->rrdtool_opts != '')
                         $rrdgraph[] = $this->rrdtool_opts;
+                if ($this->graph_smooth)
+                        $rrdgraph[] = '-E';
                 $rrdgraph[] = sprintf('-w %d', is_numeric($this->width) ? $this->width : 400);
                 $rrdgraph[] = sprintf('-h %d', is_numeric($this->heigth) ? $this->heigth : 175);
                 $rrdgraph[] = '-l 0';