API Reference > geometry-core > Serialization > IModelJson > IModelJson.TransitionSpiralProps

IModelJson.TransitionSpiralProps Interface

Interface for spiral

  • Any 4 (but not 5) of the 5 values [startBearing, endBearing, startRadius, endRadius, length] may be defined.
  • In radius data, zero radius indicates straight line (infinite radius)
  • Note that the inherited AxesProps allows multiple ways to specify orientation of the placement..

Extends

Properties

Name Type Description
activeFractionInterval undefined | number[] Fractional part of active interval.  
curveLength undefined | number Deprecated synonym for length property. Deprecated  
endBearing undefined | AngleProps End bearing.  
endRadius undefined | number Radius at end (0 for straight line)  
fractionInterval undefined | number[] DEPRECATED -- use activeFractionInterval. Deprecated  
intervalFractions undefined | [number, number] DEPRECATED -- use activeFractionInterval. Deprecated  
length undefined | number length along curve.  
origin XYZProps origin of the coordinate system.  
startBearing undefined | AngleProps angle at departure from origin.  
startRadius undefined | number Radius at start (0 for straight line)  
type undefined | string TransitionSpiral type.  

Inherited properties

Name Type Inherited from Description
xyVectors undefined | [XYZProps, XYZProps] IModelJson.AxesProps Cartesian coordinate directions defined by X direction then Y direction.
yawPitchRollAngles undefined | YawPitchRollProps IModelJson.AxesProps See YawPitchAngles class for further information about using 3 rotations to specify orientation.
zxVectors undefined | [XYZProps, XYZProps] IModelJson.AxesProps Cartesian coordinate directions defined by X direction then Y direction.

Defined in

Last Updated: 12 June, 2024