.. role:: blue
   :class: blue

CURVE CONSTRUCTION METHODS
==========================
.. _CURVE_CONSTRUCTION_METHODS_:

Curves are used as building blocks to construct surfaces. Curves are used to join surfaces with each other. Curves form a basis to construct faces used in solid body 
models and wireframe models. In some cases curves act as reference objects to position other elements of a geometric model.

All curves are the :blue:`MbCurve3D` class inheritors and are described in section :ref:`CURVES <CURVES_>`. The curves can be constructed by directly calling the 
corresponding constructors or using the methods described in this section.

.. toctree::
   :maxdepth: 1

   subsections/EN/Constructing_a_Line_and_a_Segment
   subsections/EN/Constructing_a_Circle,_an_Ellipse_And_Their_Arcs
   subsections/EN/Construction_of_a_Regular_Polygon
   subsections/EN/Compound_Curve_Construction
   subsections/EN/Сurve_Extension
   subsections/EN/Wireframe_Extension

   .. subsections/RU/Constructing_Curves_Based_on_Control_Points
   subsections/RU/NURBS_Curve_Construction
   subsections/RU/Spiral_Construction
   subsections/RU/Wireframe_Construction
   subsections/RU/Curve_Projection_onto_a_Surface
   subsections/RU/Construction_of_Surface_Intersection_Curves
   subsections/RU/Silhouette_Curve_Construction
   subsections/RU/Constructing_a_Curve_Mating_Curve