``0.2.0``
=========

|pypi| |docs|

-  **Primary feature**: ``Surface.intersect()``
   `method <https://bezier.readthedocs.io/en/0.2.0/reference/bezier.surface.html#bezier.surface.Surface.intersect>`__
   added
-  To support intersection, needed ``CurvedPolygon``
   `type <https://bezier.readthedocs.io/en/0.2.0/reference/bezier.curved_polygon.html#bezier.curved_polygon.CurvedPolygon>`__,
   i.e. an object defined only by its curved sides (whereas a
   ``Surface`` may have interior control points)
-  Added ``Curve.specialize()``
   `method <https://bezier.readthedocs.io/en/0.2.0/reference/bezier.curve.html#bezier.curve.Curve.specialize>`__
   for chopping a ``Curve`` at arbitrary parameter values (this is also
   used in surface-surface intersection)
-  Added images to most documented functions and methods to illustrate
   the concept at hand. For example the ``classify_intersection()``
   `helper <https://bezier.readthedocs.io/en/0.2.0/algorithm-helpers.html#bezier._surface_helpers.classify_intersection>`__
   has **seven** images to enumerate all of the possible cases covered
   in the algorithm.
-  Added ``Surface.locate()``
   `method <https://bezier.readthedocs.io/en/0.2.0/reference/bezier.surface.html#bezier.surface.Surface.locate>`__,
   made possible by the ``newton_refine()``
   `helper <https://bezier.readthedocs.io/en/0.2.0/algorithm-helpers.html#bezier._surface_helpers.newton_refine>`__
-  Added `Algorithm
   Helpers <https://bezier.readthedocs.io/en/0.2.0/algorithm-helpers.html>`__
   doc to try to explain some of the core algorithms at work (not all
   are documented yet). Some of this content was previously documented
   in the ``bezier.curve`` module, but was moved. Since, documentation
   has been added for ``get_curvature``, ``newton_refine`` (for
   surfaces), ``classify_intersection`` (to determine how two curves
   interact while intersecting) and for some helper classes.
-  Added ``Surface.base_x``, ``Surface.base_y`` and ``Surface.width``
   `properties <https://bezier.readthedocs.io/en/0.2.0/reference/bezier.surface.html#bezier.surface.Surface.width>`__
   to allow tracking a sub-surface during the subdivision process (this
   is an analogue to the ``Curve.start`` and ``Curve.end``
   `properties <https://bezier.readthedocs.io/en/0.2.0/reference/bezier.curve.html#bezier.curve.Curve.start>`__)
-  Added ``Curve.edge_index``, ``Curve.next_edge`` and
   ``Curve.previous_edge``
   `properties <https://bezier.readthedocs.io/en/0.2.0/reference/bezier.curve.html#bezier.curve.Curve.edge_index>`__
   to allow tracking when curves are actually the sides of a ``Surface``

.. |pypi| image:: https://img.shields.io/pypi/v/bezier/0.2.0.svg
   :target: https://pypi.org/project/bezier/0.2.0/
   :alt: PyPI link to release 0.2.0
.. |docs| image:: https://readthedocs.org/projects/bezier/badge/?version=0.2.0
   :target: https://bezier.readthedocs.io/en/0.2.0/
   :alt: Documentation for release 0.2.0