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| template<typename DerivedP , typename DerivedS , typename DerivedD , typename Derivedt , typename DerivedsqrD >  | 
| void  | igl::project_to_line (const Eigen::MatrixBase< DerivedP > &P, const Eigen::MatrixBase< DerivedS > &S, const Eigen::MatrixBase< DerivedD > &D, Eigen::PlainObjectBase< Derivedt > &t, Eigen::PlainObjectBase< DerivedsqrD > &sqrD) | 
|   | Project points onto vectors, that is find the parameter t for a point p such that proj_p = (y-x).  
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| template<typename Scalar >  | 
| void  | igl::project_to_line (const Scalar px, const Scalar py, const Scalar pz, const Scalar sx, const Scalar sy, const Scalar sz, const Scalar dx, const Scalar dy, const Scalar dz, Scalar &projpx, Scalar &projpy, Scalar &projpz, Scalar &t, Scalar &sqrd) | 
|   | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.  
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| template<typename Scalar >  | 
| void  | igl::project_to_line (const Scalar px, const Scalar py, const Scalar pz, const Scalar sx, const Scalar sy, const Scalar sz, const Scalar dx, const Scalar dy, const Scalar dz, Scalar &t, Scalar &sqrd) | 
|   | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.  
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