public ccVertex3F originalVertex(int i, int j)
{
CCGrid3D g = (CCGrid3D)m_pTarget.Grid;
return(g.originalVertex(i, j));
}
/// <summary>
/// returns the non-transformed vertex than belongs to certain position in the grid
/// </summary>
public ccVertex3F originalVertex(ccGridSize pos)
{
CCGrid3D g = (CCGrid3D)m_pTarget.Grid;
return(g.originalVertex(pos));
}