FPoint.h

/********************************************************************/
/* Copyright (c) 2015 DG Technologies Inc. and Yuzi Mizuno          */
/* All rights reserved.                                             */
/********************************************************************/
#ifndef _MGFPoint_HH_
#define _MGFPoint_HH_

#include "mg/Position.h"
class MGFSurface;

class MG_DLL_DECLR MGFPoint{

public:
    
MG_DLL_DECLR friend std::ostream& operator<< (std::ostream&, const MGFPoint& );

MGFPoint():m_face(0){;};    

MGFPoint(
    const MGFSurface& face, 
    const MGPosition& uv    
    ):m_face(&face), m_uv(uv){;};


bool operator< (const MGFPoint& fp)const;
bool operator> (const MGFPoint& fp)const{return fp<(*this);};
bool operator<= (const MGFPoint& fp)const{return !(fp<(*this));};
bool operator>= (const MGFPoint& fp)const{return !((*this)<fp);};

bool operator== (const MGFPoint& fp)const;
bool operator!= (const MGFPoint& fp)const{return !operator==(fp);};


MGVector eval(int ndu=0, int ndv=0)const;

const MGFSurface& fsurface()const{return *m_face;};

const MGPosition& uv()const{return m_uv;};

private:
    const MGFSurface* m_face;
    MGPosition m_uv;        

};


MG_DLL_DECLR MGVector eval(
    const MGFPoint& uv, 
    int ndu=0, int ndv=0    
);

MG_DLL_DECLR MGVector normal(const MGFPoint& uv);

MG_DLL_DECLR MGUnit_vector unit_normal(const MGFPoint& uv);
 // end of GEORelated group

#endif