RebarShapeDefinitionByArc.SetArcTypeSpiral Method

Set the RebarShapeDefinitionByArc.Type property to Spiral.

Namespace: Autodesk.Revit.DB.Structure
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.3.0.0 (25.3.0.0)

Syntax

public void SetArcTypeSpiral(
	double height,
	double pitch,
	int baseFinishingTurns,
	int topFinishingTurns
)

height Double: The height of the spiral (assuming the spiral is vertical).
pitch Double: The pitch, or vertical distance traveled in one rotation.
baseFinishingTurns Int32: The number of finishing turns at the lower end of the spiral.
topFinishingTurns Int32: The number of finishing turns at the upper end of the spiral.

Exception	Condition
ArgumentException	baseFinishingTurns is not between 0 and 100. -or- topFinishingTurns is not between 0 and 100.
ArgumentOutOfRangeException	The given value for height must be greater than 0 and no more than 30000 feet. -or- The given value for pitch must be greater than 0 and no more than 30000 feet.

In order to create a spiral definition, you must provide default values for height, pitch, and finishing turns.