added new helper methods

worked on gridWalker v3

math/Interpolator.h

@@ -56,6 +56,11 @@ public:
 
 	}
 
+	/** get a list of all raw entries */
+	const std::vector<InterpolatorEntry>& getEntries() const {
+		return entries;
+	}
+
 protected:
 
 	/** special interpolation for the timestamp class */