comparison hackday/BayesianArrayStructure.h @ 28:49a5b023df1e

Hackday files comitted - version as demo'd at London hackday

+/*
+ *  BayesianArrayStructure.h
+ *  midiCannamReader
+ *
+ *  Created by Andrew on 17/07/2011.
+ *  Copyright 2011 QMUL. All rights reserved.
+ *
+ */
+#ifndef BAYESIAN_ARRAY_STRUCTURE
+#define BAYESIAN_ARRAY_STRUCTURE
+
+
+#include "ofMain.h"
+//#include "DynamicBayesianArray.h"
+#include "DynamicVector.h"
+
+class BayesianArrayStructure {
+	
+public:
+//	BayesianArrayStructure();
+	BayesianArrayStructure();
+	BayesianArrayStructure(int length);
+	
+	void calculatePosterior();
+	void drawArrays();
+	void drawArraysRelativeToTimeframe(const double& startTimeMillis, const double& endTimeMillis);
+
+	void drawTempoArrays();
+	
+	void resetSize(int length);
+	void resetArrays();
+	void simpleExample();
+	void setStartPlaying();
+	void zeroArrays();
+	
+	double screenWidth;
+	
+	void copyPriorToPosterior();
+//	DynamicBayesianArray bayesArray;
+	
+	double lastEventTime;
+	double likelihoodNoise;
+	double speedLikelihoodNoise;
+	
+	//DynamicVector tmpPrior;
+	DynamicVector tmpPosteriorForStorage;
+	DynamicVector prior;
+	DynamicVector posterior;
+	DynamicVector likelihood;
+	
+	DynamicVector relativeSpeedPrior;
+	DynamicVector relativeSpeedLikelihood;
+	DynamicVector relativeSpeedPosterior;
+	DynamicVector acceleration;
+	
+	double tmpBestEstimate;
+	void updateTmpBestEstimate(const double& timeDifference);
+	
+	int updateCounter;
+	
+	void setPositionDistributionScalar(double f);
+	
+	void resetSpeedToOne();
+	void addGaussianNoiseToSpeedPosterior(const double& std_dev);
+	void addTriangularNoiseToSpeedPosterior(const double& std_dev);
+	
+	double bestEstimate;
+	void updateBestEstimate(const double& timeDifference);
+	double lastBestEstimateUpdateTime;
+	double speedEstimate;
+	
+	double speedDecayWidth, speedDecayAmount;
+	void decaySpeedDistribution(double timeDifference);
+	
+	void resetSpeedSize(int length);
+	void setRelativeSpeedScalar(double f);
+	void setSpeedPrior(double f);
+	void calculateNewPriorOffset(const double& timeDifference);
+	void setNewDistributionOffsets(const double& newOffset);
+	
+	void setLikelihoodToConstant();
+	void updateTempoLikelihood(const double& speedRatio, const double& matchFactor);
+	void updateTempoDistribution();
+	
+	void calculateTempoUpdate();
+	
+	void crossUpdateArrays(DynamicVector& position, DynamicVector& speed, double timeDifference);
+	void complexCrossUpdate(const double& timeDifferenceInPositionVectorUnits);
+	void translateByMaximumSpeed(const double& timeDifferenceInPositionVectorUnits);
+	double crossUpdateTimeThreshold;//time after which we do complex update of multiple speeds
+	
+	double speedPriorValue;
+	int priorWidth;
+	bool* realTimeMode;
+	bool usingIntegratedTempoEstimate;
+	double relativeSpeedLikelihoodStdDev;
+	
+};
+#endif