In the new version 0.3 of LGS 3D the help points have been added to constrain tangency between circle and plane, circle and circle, circle and cylinder. In such a way, when defining the tangency constraint for a circle and plane, cylinder or other circle, an application can fix via help points the side of a circle where the tangency should take place - the nearest or the farthest side. Additionally to overdefined-diagnostics of the constraints, the diagnostics of the objects' (welldefined and underdefined geometric objects) degree of freedom has been introduced as well.