# A3DCrvOnSurfData

struct `A3DCrvOnSurfData`

  Curve on Surface structure.

  3D Curve defined as a 2D parametric curve lying on a surface

  > 2.0

  ## Index

  Variables

  - `m_bIs2D`
  - `m_sTrsf`
  - `m_sParam`
  - `m_pUVCurve`
  - `m_pSurface`

Variables

A3DBool `A3DCrvOnSurfData.``m_bIs2D`
  `A3DBool`

  A value of true specifies a 2D curve; and a value of false specifies a 3D curve.

A3DMiscCartesianTransformationData `A3DCrvOnSurfData.``m_sTrsf`
  `A3DMiscCartesianTransformationData`

  Cartesian transformation.

A3DParameterizationData `A3DCrvOnSurfData.``m_sParam`
  `A3DParameterizationData`

  Parameterization.

A3DCrvBase *`A3DCrvOnSurfData.``m_pUVCurve`
  `A3DCrvBase`*

  Parameter space curve.

A3DSurfBase *`A3DCrvOnSurfData.``m_pSurface`
  `A3DSurfBase`*

  Base surface.

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