From 80c45ad46aa47c8d5d5c0760c22f40675643ece2 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Mon, 18 Nov 2013 12:45:04 +0000
Subject: [PATCH] Added BoundingBox::contains(const vec_type& v, value_type
 epsilon) method with new epsilon parameter to make it easier to test for
 containment in the presence of numerical errors

---
 include/osg/BoundingBox | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/osg/BoundingBox b/include/osg/BoundingBox
index 4201d4047..c3c4c0ba5 100644
--- a/include/osg/BoundingBox
+++ b/include/osg/BoundingBox
@@ -227,6 +227,15 @@ class BoundingBoxImpl
                    (v.y()>=_min.y() && v.y()<=_max.y()) &&
                    (v.z()>=_min.z() && v.z()<=_max.z());
         }
+
+        /** Returns true if this bounding box contains the specified coordinate allowing for specific epsilon. */
+        inline bool contains(const vec_type& v, value_type epsilon) const
+        {
+            return valid() &&
+                   ((v.x()+epsilon)>=_min.x() && (v.x()-epsilon)<=_max.x()) &&
+                   ((v.y()+epsilon)>=_min.y() && (v.y()-epsilon)<=_max.y()) &&
+                   ((v.z()+epsilon)>=_min.z() && (v.z()-epsilon)<=_max.z());
+        }
 };
 
 typedef BoundingBoxImpl<Vec3f> BoundingBoxf;