Math_Tools.cc

/*===========================================================================*\
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/*===========================================================================*\
*                                                                            *
*   $Revision$                                                       *
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\*===========================================================================*/



//=============================================================================
//
//  Math_Tools - IMPLEMENTATION
//
//=============================================================================

#define MATH_TOOLS_C

//== INCLUDES =================================================================

#include "Math_Tools.hh"
#include <OpenMesh/Core/Geometry/MathDefs.hh>

//== NAMESPACES ===============================================================

namespace MathTools {

template < typename VectorT > 
inline
void
sane_normalize( VectorT & _vec ) {
   
    // Normalize all vectors (Save version)
    if ( ! OpenMesh::is_zero( _vec.sqrnorm() ) )
       _vec.normalize();      
    else 
       _vec = VectorT(0.0,0.0,0.0);
}

/// Normalize Vector (if vector size is zero, return zero point);
template < typename VectorT > 
inline
VectorT
sane_normalized( VectorT _vec) {
     // Normalize all vectors (Save version)
    if ( ! OpenMesh::is_zero( _vec.sqrnorm() ) )
       return (_vec.normalize());      
    else 
       return ( VectorT(0.0,0.0,0.0) );
}



//=============================================================================
} // namespace MathTools
//=============================================================================