libigl_Martin/include/igl/up_axis.cpp

#include "up_axis.h"
#ifndef IGL_NO_OPENGL

#include "OpenGL_convenience.h"

IGL_INLINE void igl::up_axis(double * x, double * y, double * z)
{
  double mv[16];
  glGetDoublev(GL_MODELVIEW_MATRIX, mv);
  igl::up_axis(mv,x,y,z);
}

IGL_INLINE void igl::up_axis(const double *mv, double * x, double * y, double * z)
{
  *x = -mv[0*4+1];
  *y = -mv[1*4+1];
  *z = -mv[2*4+1];
}

#endif