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-rw-r--r--src/graph.php2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/graph.php b/src/graph.php
index d3c2bf9..af4db6c 100644
--- a/src/graph.php
+++ b/src/graph.php
@@ -15,6 +15,8 @@
class ezcGraph
{
+ const DIAMOND = 1;
+
static protected $chartTypes = array(
'pie' => 'ezcGraphPieChart',
'line' => 'ezcGraphLineChart',
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