# Compute Section

> 6.1

Compute section functions for model file.

> `A3DComputePlanarSectionOnRepresentationItem()`

> `A3DComputePlanarSectionOnModelFile()`

Parameters

> pRiBrepModel: B-rep models.

> psSectionParametersData: Parameters of the planar section.

> ppRISectionResults: Array of section curves. ppRISectionResults is automatically allocated by A3DComputePlanarSectionOnRepresentationItem. It has to be freed with a call to A3DComputePlanarSectionOnRepresentationItem(A3D_NULL_HANDLE, psSectionParametersData, ppRISectionCurvesis).

Returns

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

Structures

- `A3DPlanarSectionData`
- `A3DMultiPlanarSectionData`

Functions

- `A3DComputePlanarSectionOnRepresentationItem()`
- `A3DComputePlanarSectionOnModelFile()`
- `A3DCutWithMultiPlanarSectionOnRepresentationItems()`
- `A3DCutWithMultiPlanarSectionOnModelFile()`

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