.. _group__a3d__crvhyperbola:

################
Hyperbolic Curve
################


   2.0


Entity type is :c:enumerator:`~kA3DTypeCrvHyperbola`\ .

For the canonical definition of this curve and its corresponding parametric equation, see the "SerializeHyperbola" section of the\ `*PRC Format Specification* <https://docs.techsoft3d.com/exchange/latest/SC2N570-PRC-WD.pdf>`__\ .

The :c:struct:`~A3DParameterizationData`\ struct specified by the :c:member:`A3DCrvHyperbolaData::m_sParam <A3DCrvHyperbolaData.m_sParam>`\ member specifies reparameterization and trim for the curve.


   In version 2.1 and earlier, values for the parameterization type named by the :c:member:`A3DCrvHyperbolaData::m_cParamType <A3DCrvHyperbolaData.m_cParamType>`\ member are inverted compared to the corresponding values in the\ `*PRC Format Specification* <https://docs.techsoft3d.com/exchange/latest/SC2N570-PRC-WD.pdf>`__\ .


**Returns**


   ``A3D_SUCCESS``\ on success, or an error code on failure


.. rst-class:: kind-group kind-record

.. rubric:: Structures
   :class: kind-group-title


.. rst-class:: api-xref-list


* :c:struct:`~A3DCrvHyperbolaData`

.. rst-class:: kind-group kind-function

.. rubric:: Functions
   :class: kind-group-title


.. rst-class:: api-xref-list


* :c:func:`~A3DCrvHyperbolaGet`
* :c:func:`~A3DCrvHyperbolaCreate`

.. toctree::
   :maxdepth: 1
   :hidden:

   ../structures/A3DCrvHyperbolaData
   ../functions/A3DCrvHyperbolaGet
   ../functions/A3DCrvHyperbolaCreate


