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francois |
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#include "npoint.h" |
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npoint::npoint(const npoint3 pt, const double w) |
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{ |
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for (int i=0;i<3;++i) coord[i]=pt[i]*w; |
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coord[3]=w; |
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} |
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npoint::npoint(const npoint2 pt, const double w) |
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{ |
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for (int i=0;i<2;++i) coord[i]=pt[i]*w; |
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coord[2]=0; |
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coord[3]=w; |
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} |
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npoint::npoint(const double pt, const double w) |
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{ |
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coord[0]=pt*w; |
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coord[1]=0; |
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coord[2]=0; |
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coord[3]=w; |
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} |
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npoint operator * (const double fact,const npoint other) |
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{ |
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npoint buf=other; |
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for (int i=0;i<4;++i) buf[i]*=fact; |
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return buf; |
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} |
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npoint3 crossprod(const npoint3 V1,const npoint3 V2) |
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{ |
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npoint3 buf; |
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buf[0]=V1[1]* V2[2]-V1[2]* V2[1]; |
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buf[1]=V1[2]* V2[0]-V1[0]* V2[2]; |
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buf[2]=V1[0]* V2[1]-V1[1]* V2[0]; |
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return buf; |
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} |
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npoint3 operator * (const double fact,const npoint3 other) |
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{ |
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npoint3 buf=other; |
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for (int i=0;i<3;++i) buf[i]*=fact; |
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return buf; |
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} |
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double operator * (const npoint3 p1, const npoint3 p2) |
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{ |
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double scalaire = p1.x() *p2.x() + p1.y() *p2.y() + p1.z() *p2.z(); |
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return scalaire; |
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} |
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void npoint::print(std::ostream &os,int prec) const // sort les coordonees dans le flux os |
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{ |
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os.precision(prec); |
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os.flags(std::ios::scientific); |
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os<<coord[0]<<" "<<coord[1]<<" "<<coord[2]<<" "<<coord[3]; |
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} |
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void npoint3::print(std::ostream &os,int prec) const // sort les coordonees dans le flux os |
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{ |
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os.precision(prec); |
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os.flags(std::ios::scientific); |
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os<<coord[0]<<" "<<coord[1]<<" "<<coord[2]; |
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} |
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std::ostream& operator<<(std::ostream& stream, |
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const npoint& pt) |
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{ |
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pt.print(stream,16); //assuming you define print for matrix |
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return stream; |
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} |
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std::ostream& operator<<(std::ostream& stream, |
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const npoint3& pt) |
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{ |
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pt.print(stream,16); //assuming you define print for matrix |
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return stream; |
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} |
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npoint3::npoint3(const npoint2 p) |
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{ |
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coord[0]=p.u(); |
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coord[1]=p.v(); |
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coord[2]=0; |
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} |
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double crossprod(const npoint2 V1,const npoint2 V2) |
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{ |
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return V1[0]* V2[1]-V1[1]* V2[0]; |
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} |
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npoint2 operator * (const double fact,const npoint2 other) |
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{ |
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npoint2 buf=other; |
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for (int i=0;i<2;++i) buf[i]*=fact; |
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return buf; |
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} |
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double operator * (const npoint2 p1, const npoint2 p2) |
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{ |
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double scalaire = p1.u() *p2.u() + p1.v() *p2.v(); |
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return scalaire; |
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} |
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