worked on signal-strength-estimation

add this information to grid nodes
evaluate this information
new test-cases

grid/GridNode.h

@@ -24,14 +24,18 @@ private:
 	/** INTERNAL: node's index array-index */
 	int _idx;
 
-	/** semantic annotation for this node */
-	uint8_t _type;
+	/** INTERNAL: store neighbors (via index) */
+	int _neighbors[10];
 
 	/** INTERNAL: number of neighbors */
 	uint8_t _numNeighbors;
 
-	/** INTERNAL: store neighbors (via index) */
-	int _neighbors[10];
+	/** semantic annotation for this node */
+	uint8_t _type;
+
+
+
+
 
 
 public:
@@ -43,7 +47,9 @@ public:
 
 public:
 
-	GridNode() : _idx(-1), _numNeighbors(0), _neighbors() {;}
+	/** ctor */
+	GridNode() : _idx(-1), _neighbors(), _numNeighbors(0), _type(0) {;}
+
 
 	/** get the node's index within its grid */
 	int getIdx() const {return _idx;}