TOPOLOGICAL OBJECTS
====================== 
.. _TOPOLOGICAL_OBJECTS_:


Geometric properties that don't depend on quantitative characteristics
(lengths and angles) and that reflect continuous relationship of object
elements and its environment are called topological properties.
Topological objects of C3D geometric kernel also describe geometrical
properties of the object that depend on quantitative characteristics, as
well as geometrical properties that reflect continuous relationship of
the object with the neighboring elements. Topological objects are
constructed based on surfaces, curves and points by adding to their
data, properties, and methods new data, properties, and methods that
reflect connections of the object with its environment.

.. toctree::
   :maxdepth: 1

   subsections/EN/MbTopologyItem_Topological_Object
   subsections/EN/MbFace_Face 
   subsections/EN/MbEdge_Edge
   subsections/EN/MbVertex_Vertex
   subsections/EN/MbCurveEdge_Face_Edge
   subsections/EN/MbLoop_Face_Cycle
   subsections/EN/MbOrientedEdge_Oriented_Face_Edge
   subsections/EN/MbFaceShell_Set_of_Faces
   subsections/EN/Copying_a_Set_of_Faces
   subsections/EN/Naming_of_Faces,_Edges_and_Vertices
   subsections/EN/Operation_Principles_of_Change_Flags_of_Topological_Objects