# A3DSurfIsDegenerated

A3DStatus `A3DSurfIsDegenerated`(const A3DSurfBase *pSurf, const A3DVector2dData *pUVParameter, A3DDouble dTolerance, A3DBool *pbIsDegenerated, A3DBool *pbUDirection)
  `A3DStatus` A3DSurfIsDegenerated(const `A3DSurfBase`* pSurf, const `A3DVector2dData`* pUVParameter, `A3DDouble` dTolerance, `A3DBool`* pbIsDegenerated, `A3DBool`* pbUDirection)

  Function to determine if a surface is degenerated at a point.

  Parameters

  > pSurf: The input surface.

  > pUVParameter: The coordinates of the point.

  > dTolerance: The tolerance of the test.

  > pbIsDegenerated: The returned value.

  > pbUDirection: The direction of the degeneracy if a degeneracy is detected (true = U direction, and false = V direction).

  Returns

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

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