.. _group__a3d___h_l_r___compute:

###########
Compute HLR
###########


   8.1


Compute HLR functions for model file.


   A3DComputeOthoHLROnRepresentationItem



   :c:func:`~A3DComputeOrthoHLROnModelFile3`


**Parameters**


   **uiNbRepItems**\ : Number of :c:type:`~A3DRiRepresentationItem`\ .

   **apRepItems**\ : set of :c:type:`~A3DRiRepresentationItem`\ .

   **pOptPlacements**\ : Optional set of representation item placements (16 :c:type:`~A3DDouble`\ matrix).

   **psHLRViewPlaneData**\ : define a plane as a camera with orthogonal projection.

   **pNumberHLRData**\ : Number :c:struct:`~A3DHLRRepresentationItemData`\ .

   **pppHLRData**\ : HLR curve result grouped by :c:type:`~A3DRiRepresentationItem`\ entity. pppHLRData is automatically allocated by A3DComputeOrthoHLROnRepresentationItems.


**Returns**


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


.. rst-class:: kind-group kind-topic

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


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


* :ref:`Type of HLR curves result. <group__a3d__hlr__curve__type>`

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

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


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


* :c:struct:`~A3DHLRViewPlaneData`
* :c:struct:`~A3DHLRCurveData`
* :c:struct:`~A3DHLRSectionFaceData`
* :c:struct:`~A3DHLRRepresentationItemData`
* :c:struct:`~A3DHLROptionsData`

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

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


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


* :c:func:`~A3DComputeOrthoHLROnRepresentationItems`
* :c:func:`~A3DComputeOrthoHLROnModelFile3`
* :c:func:`~A3DHLRRepresentationItemGet`

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

   a3d_hlr_curve_type
   ../structures/A3DHLRViewPlaneData
   ../structures/A3DHLRCurveData
   ../structures/A3DHLRSectionFaceData
   ../structures/A3DHLRRepresentationItemData
   ../structures/A3DHLROptionsData
   ../functions/A3DComputeOrthoHLROnRepresentationItems
   ../functions/A3DComputeOrthoHLROnModelFile3
   ../functions/A3DHLRRepresentationItemGet


