# A3DCompareFacesInBrepModels

A3DStatus `A3DCompareFacesInBrepModels`(A3DAsmModelFile *pFirstModelFile, A3DAsmModelFile *pSecondModelFile, A3DDouble dTolerance, A3DCompareOutputData *pOutput)
  `A3DStatus` A3DCompareFacesInBrepModels(`A3DAsmModelFile`* pFirstModelFile, `A3DAsmModelFile`* pSecondModelFile, `A3DDouble` dTolerance, `A3DCompareOutputData`* pOutput)

  Function to compare the faces of two `A3DAsmModelFile`.

  Parameters

  > pFirstModelFile: a `A3DAsmModelFile`containing the first group of `A3DRiBrepModel`.

  > pSecondModelFile: a `A3DAsmModelFile`containing the second group of `A3DRiBrepModel`.

  > dTolerance: maximum distance between two matching faces, in model’s unit

  > pOutput: pointer to a `A3DCompareOutputData`that contains returned data. It has to be freed by calling again `A3DCompareFacesInBrepModels()`with A3D_NULL_HANDLE as input `A3DAsmModelFile`pointers.

  Returns

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

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