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  /************************************************************************
   * SVN MACROS
   *
   * $LastChangedDate: 2008-07-10 15:23:21 +0530 (Thu, 10 Jul 2008) $
   * $Revision: 556 $
   * $Author: sharmnid $
   *
   ************************************************************************/
  /************************************************************************
   * FILE DESCR: Definitions for the Ink utilities module
   *
   * CONTENTS: 
   *
   * AUTHOR:     Deepu V.
   *
   * DATE:       March 07 2005
   * CHANGE HISTORY:
   * Author		Date			Description of change
   ************************************************************************/
  
  #ifndef __LTKINKUTILS_H
  #define __LTKINKUTILS_H
  
  #include <cfloat>
  
  #include "LTKInc.h"
  
  #include "LTKTypes.h"
  
  class LTKTraceGroup;
  
  /**
  * @ingroup util
  */
  
  /** @brief This class contains the methods for computing statistics of a channel
  * @class LTKInkUtils
  */
  
  class LTKInkUtils  
  {
  public:
  	/**
  	 * @name Constructors and Destructor
  	 */
  	// @{
  
  	/**
  	 * Default Constructor
  	 */
  	LTKInkUtils();
  
  	/**
  	 * Destructor 
  	 */
  	virtual ~LTKInkUtils();
  
  	// @}
  
  	/**
  	 * @name Functions that computes the statistics
  	 */
  	// @{
  
  	/**
  	 * Generic function that computes the statistics of channels of an LTKTraceGroup object  
  	 * 
  	 * @param  traceGroup         The TraceGroup whose statistics need to be computed
       * @param  channelNames       Names of channels in the traceGroup for which statistics have to be comptued
       * @param  properties         The names of the statistics to be computed
       * @param  channelStatistics  output vector containing results
  	 */
      static int computeChannelStatistics(const LTKTraceGroup& traceGroup,const vector<string>& channelNames,  
  		const vector<ELTKTraceGroupStatistics>& properties, vector<vector<float> >& channelStatistics);
  
  
  	/**
  	 * This function computes the minimum of channels of an LTKTraceGroup object 
  	 * 
  	 * @param  traceGroup         The TraceGroup whose maximum need to be computed
       * @param  channelNames       Names of channels in the traceGroup for which maximum need to be computed
       * @param  maxValues          output vector containing maxValues for each channel
  	 */
  	static int computeChannelMaximum(const LTKTraceGroup& traceGroup, const vector<string>& channelNames, 
  		vector<float>& maxValues);
  
  	/**
  	 * This function computes the minimum of channels of an LTKTraceGroup object 
  	 * 
  	 * @param  traceGroup         The TraceGroup whose minimum need to be computed
       * @param  channelNames       Names of channels in the traceGroup for which minimum need to be computed
       * @param  minValues          output vector containing minValues for each channel
  	 */
  	static int computeChannelMinimum(const LTKTraceGroup& traceGroup, const vector<string>& channelNames, 
  		vector<float>& minValues);
  
  	/**
  	 * This function computes the minimum and maximum of channels of an LTKTraceGroup object 
  	 * 
  	 * @param  traceGroup         The TraceGroup whose parameters need to be computed
       * @param  channelNames       Names of channels for which parameters need to be computed
       * @param  minValues          output vector containing minValues for each channel
       * @param  maxValues          output vector containing maxValues for each channel
       */
  	static int computeChannelMaxMin(const LTKTraceGroup& traceGroup, const vector<string>& channelNames, 
  		vector<float>& maxValues, vector<float>& minValues);
  
  
  	// @}
  
  };
  
  #endif //#ifndef __LTKINKUTILS_H
  