ELEMENTARY OBJECTS
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.. _ELEMENTARY_OBJECTS_:

Elementary objects are C3D geometric kernel entities that describe such mathematical constructs as a vector, a point, an axis, a local coordinate system, a transformation matrix, a bounding box, and a bounding rectangle. Elementary objects have simple data structures. They serve as a tool and building material for more complex geometric objects and are used by all modules of the geometric kernel.

.. toctree::
   :maxdepth: 1

   subsections/EN/MbVector3D_Vector_in_Three-Dimensional_Space
   subsections/EN/MbCartPoint3D_Radius_Vector_of_Point_in_3D_Space
   subsections/EN/MbHomogenius3D_Homogenius_Vector_in_Three-Dimensional_Space
   subsections/EN/MbPlacement3D_Local_Coordinate_System
   subsections/EN/MbMatrix3D_Extended_Matrix_in_Three-Dimensional_Space
   subsections/EN/MbCube_Bounding_Box_in_Three-Dimensional_Space
   subsections/EN/MbRect1D_Univariate_Dimension
   subsections/EN/MbVector_Vector_in_Two-Dimensional_Space
   subsections/EN/MbDirection_Normalized_Vector_in_Two-Dimensional_Space
   subsections/EN/MbCartPoint_Point_Radius_Vector_in_Two-Dimensional_Space
   subsections/EN/MbHomogenius_Homogenios_Vector_in_Two-Dimensional_Space
   subsections/EN/MbPlacement_Local_Coordinate_System
   subsections/EN/MbMatrix_Extended_Matrix_in_Two-Dimensional_Space
   subsections/EN/MbRect_Bounding_Rectangle_in_Two-Dimensional_Space