# A3DCrvHelixPitchCstData

struct `A3DCrvHelixPitchCstData`

  Constant pitch structure for helix curves.

  > 2.0

  ## Index

  Variables

  - `m_bTrigonometricOrientation`
  - `m_sStartPoint`
  - `m_sOrigin`
  - `m_sDirection`
  - `m_dPitch`
  - `m_dRadiusEvolution`

Variables

A3DBool `A3DCrvHelixPitchCstData.``m_bTrigonometricOrientation`
  `A3DBool`

  Trigonometruc orientation.

A3DVector3dData `A3DCrvHelixPitchCstData.``m_sStartPoint`
  `A3DVector3dData`

  Starting point.

A3DVector3dData `A3DCrvHelixPitchCstData.``m_sOrigin`
  `A3DVector3dData`

  Origin (optional).

A3DVector3dData `A3DCrvHelixPitchCstData.``m_sDirection`
  `A3DVector3dData`

  Direction.

A3DDouble `A3DCrvHelixPitchCstData.``m_dPitch`
  `A3DDouble`

  Pitch.

A3DDouble `A3DCrvHelixPitchCstData.``m_dRadiusEvolution`
  `A3DDouble`

  Radius evolution.

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