# CALCULATION OF TWO-DIMENSIONAL CONSTRAINTS ```{toctree} subsections/EN/Calculating_the_Constraint_System subsections/EN/Changing_or_Requesting_the_Geometry_State subsections/EN/Initial_Approximation subsections/EN/Overdefined_Constraint_And_Inconsistent_Constraints subsections/EN/Underdefined_Constraint_Systems subsections/EN/Degree_of_Freedom_Analysis subsections/EN/Information_Requests subsections/EN/Dragging_of_Geometric_Objects subsections/EN/Geometric_Transformation subsections/EN/Redundancy_Test ```