.. role:: blue
   :class: blue


Multiline MbMultiline
=====================
.. _MbMultiline_Multiline_:

.. kernel version: 

The :blue:`MbMultiline` class is declared in the *multiline.h* file.


The :blue:`MbMultiline` multiline is derived from the
:ref:`MbPlaneItem <MbPlaneItem_Two-Dimensional_Geometrical_Object_>` class, see Fig. 1:


.. figure:: /MODELER/SPECIAL_OBJECTS/pictures/O.6.7.1.png
   :width: 15cm
   :align: center

   Fig. 1


The multiline is defined by the base contour **basisCurve**,
the set of vertices **vertices**, the set of radii
*equidRadii*, the parameters of the start edge of the multiline *begTipParams*,
the parameters of the end edge of the multiline *endTipParams*, the flag of
periodicity processing *processClosed*, the transparency flag
*isTransparent*, the set of curves **curves**,
the set of tips at the vertices of the multiline **tipCurves**,
the tip at the start vertex of the multiline
**begTipCurves**, and the tip at the end vertex of the multiline
**endTipCurves**.

The multiline represents a contour that has thickness. The contour
thickness is variable. The contour edges and the joints of the contour
segments can have different shapes.

The multiline is shown in Fig. 2:

.. figure:: /MODELER/SPECIAL_OBJECTS/pictures/O.6.7.2.png
   :width: 15cm
   :align: center

   Fig. 2


The multiline is used for data exchange with other systems.