# A3DProjectPointCloud

A3DStatus `A3DProjectPointCloud`(unsigned int uRiBrepModelSize, A3DRiBrepModel **pRiBrepModel, A3DUns32 uPointCloudSize, A3DVector3dData *pPointCloudToProject, A3DBool bUseExactComputation, A3DUns32 uNbThreads, A3DProjectedPointCloudData **ppProjectedPointCloud)
  `A3DStatus` A3DProjectPointCloud(unsigned int uRiBrepModelSize, `A3DRiBrepModel`** pRiBrepModel, `A3DUns32` uPointCloudSize, `A3DVector3dData`* pPointCloudToProject, `A3DBool` bUseExactComputation, `A3DUns32` uNbThreads, `A3DProjectedPointCloudData`** ppProjectedPointCloud)

  Function to project Point Cloud on BrepModel.

  Parameters

  > uRiBrepModelSize: Number of BrepModels in pRiBrepModel.

  > pRiBrepModel: Array of BRepModels.

  > uPointCloudSize: Number of points in pPointCloudToProject.

  > pPointCloudToProject: Point cloud to project. This point cloud must be in the same coordinate system as the BrepData structures stored in BrepModel.

  > bUseExactComputation: Flag to use exact topology. When this flag is false, the algorithm drops the point cloud on the faceted geometry, otherwise, the exact topology is used.

  > uNbThreads: Number of threads wanted. 0 means non multi-thread. Please avoid setting a number of threads larger than the number of CPU cores.

  > ppProjectedPointCloud: Point cloud projected. ppProjectedPointCloud is automatically allocated by A3DProjectPointCloud. It must be freed with the custom free memory callback.

  Returns

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

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