libterralib-dev 4.3.0+dfsg.2-10 / usr / include / terralib / kernel / TeProxMatrixSlicingStrategy.h

/************************************************************************************
TerraLib - a library for developing GIS applications.
Copyright © 2001-2007 INPE and Tecgraf/PUC-Rio.

This code is part of the TerraLib library.
This library is free software; you can redistribute it and/or
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*************************************************************************************/
/*! \file TeProxMatrixSlicingStrategy.h
    \brief This file contains structures and definitions about slicing strategies of proximity matrix 
*/


#ifndef TeProxMatrixSlicingStrategy_H
#define TeProxMatrixSlicingStrategy_H

#include "TeProxMatrixImplementation.h"

struct TL_DLL TeProxMatrixSlicingParams
{
public:
	TeGPMSlicingStrategy		strategy_;
	double						zone_dist_;
	bool						zone_local_;

	TeProxMatrixSlicingParams(const TeGPMSlicingStrategy& type=TeNoSlicingStrategy):
		strategy_(type), zone_dist_(0.), zone_local_(false)
		{}

	bool operator==(const TeProxMatrixSlicingParams& other) const
	{
		return ((strategy_==other.strategy_) && (zone_dist_==other.zone_dist_) &&
			(zone_local_==other.zone_local_));
	}
};


//! An abstract class to representate slicing strategies of proximity matrix    
class TL_DLL TeProxMatrixSlicingStrategy  
{
protected:
	//! Slicing type
	TeProxMatrixSlicingParams params_; 

	//! Empty constructor
	TeProxMatrixSlicingStrategy(const TeGPMSlicingStrategy& type): params_(type) {}

public:
	//! Destructor
	virtual ~TeProxMatrixSlicingStrategy() {}

	//! Slice the proximity matrix 
	virtual bool Slice(TeProxMatrixImplementation* )=0;

	//! Equal operator
	virtual bool operator== (const TeProxMatrixSlicingStrategy& s) const {return (params_==s.params_);}

	//! Returns the slicing params
	TeProxMatrixSlicingParams& slicingParams() { return params_; }

};


//! A class to implement the no slicing strategy of proximity matrix (i.e., all neighbour are considered to be in the first slice).
class TL_DLL TeProxMatrixNoSlicingStrategy : public TeProxMatrixSlicingStrategy
{
public:
	//! Empty constructor
	TeProxMatrixNoSlicingStrategy (): TeProxMatrixSlicingStrategy(TeNoSlicingStrategy)
	{}

	//! No slice the proximity matrix 
	virtual bool Slice(TeProxMatrixImplementation* ) {return true;}

	//! Destructor
	~TeProxMatrixNoSlicingStrategy() {}
};


//! A class to implement the zone slicing strategy of proximity matrix (by local or newtork connection distance);
class TL_DLL TeProxMatrixZonesSlicingStrategy : public TeProxMatrixSlicingStrategy
{
public:
	//! Constructor
	TeProxMatrixZonesSlicingStrategy (double dist, bool local = true):
	  TeProxMatrixSlicingStrategy(TeZonesSlicingStrategy)
	  {
		  params_.zone_dist_=dist;
		  params_.zone_local_=local;
	  }

	//! Slice the proximity matrix through zone strategy 
	virtual bool Slice(TeProxMatrixImplementation* imp);

	//! Destructor
	~TeProxMatrixZonesSlicingStrategy() {}
};

#endif