diff src/Matcher.cpp @ 135:42381e437fcd refactors

The finder is supposed to use normalised path-cost when calculation expand direction (as in Java implementation). Also, provide a way to query the forward path.

--- a/src/Matcher.cpp	Thu Dec 11 15:16:15 2014 +0000
+++ b/src/Matcher.cpp	Thu Dec 18 17:56:54 2014 +0000
@@ -154,6 +154,13 @@
 }
 
 double
+Matcher::getNormalisedPathCost(int i, int j)
+{
+    // normalised for path length. 1+ prevents division by zero here
+    return getPathCost(i, j) / (1 + i + j);
+}
+
+double
 Matcher::getPathCost(int i, int j)
 {
     if (m_firstPM) {