# ArcProperties

Properties describing the shape of an arc segment of a polycurve.

Property | Long name | Unit | Description |
---|---|---|---|

Name | Name | - | Name of the arc properties. |

Comments | Comments | - | Comments on the arc properties. |

StartAngle | StartAngle | ° | The value of the angle between the start tangent of the segment and the global tangent. |

EndAngle | EndAngle | ° | End angle of the arc. |

ArcHeight | ArcHeight | ° | Height of the arc. |

ArcWidth | ArcWidth | ° | Width of the arc. |

ArcLength | ArcLength | ° | Length of the arc. |

Parent | Parent | - | The segment to which the arc properties are applied |

DirectionAngle1 | Direction angle 1 | ° | Increment of the slope of the arc segment |

LocalStartPosition1 | LocalStartPosition1 | Length | Horizontal value (x-component) of the offset to begin point |

LocalStartPosition2 | LocalStartPosition2 | Length | Vertical value (y-component) of the offset to begin point |

LocalCenterPosition1 | LocalCenterPosition1 | Length | Horizontal value (x-component) of the center of the full circle that can be drawn thought the arc in the tunnel designer local space. |

LocalCenterPosition2 | LocalCenterPosition2 | Length | Vertical value (y-component) of the center of the full circle that can be drawn thought the arc in the tunnel designer local space. |

LocalEndPosition1 | LocalEndPosition1 | Length | Horizontal value (x-component) of the offset to end point |

LocalEndPosition2 | LocalEndPosition2 | Length | Vertical value (y-component) of the offset to end point |

Delta1 | Delta1 | ° | The horizontal increment of the line formed by the start and end point of the segment. Δ1 is in local polycurve space (defined by the orientation axes), not global model space. |

Delta1 | Delta1 | ° | The vertical increment of the line of formed by the start and end point of the segment. Δ1 is in local polycurve space (defined by the orientation axes), not global model space. |

Radius | Radius | - | Radius of the arc segment. |

CentralAngle | Central angle | ° | Central angle of the arc segment. |

DiscretizationAngle | Discretization angle | ° | Upper boundary for the angle between different arc subsegments in the discretised arc. |