//----------------------------------------------------------------
public void Next()
{
_coord_x.Next();
_coord_y.Next();
_scale_x.Next();
_scale_y.Next();
}
//----------------------------------------------------------------
public void Next()
{
m_coord_x.Next();
m_coord_y.Next();
m_scale_x.Next();
m_scale_y.Next();
}
//--------------------------------------------------------------------
public void hstep()
{
m_interpolator.Next();
m_x1_lr += m_inc;
}
//--------------------------------------------------------------------
public void hstep()
{
_interpolator.Next();
_x1_lr += _inc;
}