Fixed nodes weight not modified in db when deleted

corelib/include/rtabmap/core/Memory.h

@@ -280,7 +280,6 @@ private:
 	std::list<Signature *> getRemovableSignatures(int count,
 			const std::set<int> & ignoredIds = std::set<int>());
 	int getNextId();
-	void initCountId();
 	void rehearsal(Signature * signature, Statistics * stats = 0);
 	bool rehearsalMerge(int oldId, int newId);
 	bool canBeReduced(const Link & link, float maxDistance, int direction);

corelib/include/rtabmap/core/Signature.h

@@ -62,7 +62,7 @@ public:
 	virtual ~Signature();
 
 	/**
-	 * Must return a value between >=0 and <=1 (1 means 100% similarity).
+	 * Must return a value between >=0 and <=1 (1 means 100% similarity).
 	 */
 	float compareTo(const Signature & signature) const;
 	bool isBadSignature() const;
@@ -70,10 +70,10 @@ public:
 	int id() const {return _id;}
 	int mapId() const {return _mapId;}
 
-	void setWeight(int weight) {_modified=_weight!=weight;_weight = weight;}
+	void setWeight(int weight) {_modified=_modified || _weight!=weight;_weight = weight;}
 	int getWeight() const {return _weight;}
 
-	void setLabel(const std::string & label) {_modified=_label.compare(label)!=0;_label = label;}
+	void setLabel(const std::string & label) {_modified=_modified || _label.compare(label)!=0;_label = label;}
 	const std::string & getLabel() const {return _label;}
 
 	double getStamp() const {return _stamp;}

corelib/include/rtabmap/core/VWDictionary.h

@@ -139,7 +139,6 @@ private:
 	bool _incrementalFlann;
 	float _rebalancingFactor;
 	bool _byteToFloat;
-	bool _autoUpdate;
 	float _nndrRatio;
 	std::string _dictionaryPath; // a pre-computed dictionary (.txt or .db)
 	std::string _newDictionaryPath; // a pre-computed dictionary (.txt or .db)
@@ -151,6 +150,7 @@ private:
 	cv::Mat _dataTree;
 	bool _modified;
 	NNStrategy _strategy;
+	bool _autoUpdate;
 	std::map<int ,int> _mapIndexId;
 	std::map<int ,int> _mapIdIndex;
 	std::map<int, VisualWord*> _unusedWords; //<id,VisualWord*>, note that these words stay in _visualWords