Namespace: Autodesk.Revit.DB Class: Arc

Arc.Create(Plane, Double, Double, Double)

Method

Description:
Creates a new geometric arc object based on plane, radius, and angles.

Remarks:
If the angle range is equal to or greater than 2 * PI, the curve will be automatically converted to an unbounded circle.

Syntax

public static Arc Create(
	Plane plane,
	double radius,
	double startAngle,
	double endAngle
)

Public Shared Function Create ( 
	plane As Plane,
	radius As Double,
	startAngle As Double,
	endAngle As Double
) As Arc

public:
static Arc^ Create(
	Plane^ plane, 
	double radius, 
	double startAngle, 
	double endAngle
)

static member Create : 
        plane : Plane * 
        radius : float * 
        startAngle : float * 
        endAngle : float -> Arc

Examples

Arc CreateArcByGivingPlane(Autodesk.Revit.ApplicationServices.Application application, Plane plane)
{
    // Create an arc which is placed on the plane and whose center is the plane's origin
    double radius = 10;
    double startAngle = 0;      // The unit is radian
    double endAngle = 2 * Math.PI;        // this arc will be a circle
    return Arc.Create(plane, radius, startAngle, endAngle);
}

Private Function CreateArcByGivingPlane(application As Autodesk.Revit.ApplicationServices.Application, plane As Plane) As Arc
    ' Create an arc which is placed on the plane and whose center is the plane's origin
    Dim radius As Double = 10
    Dim startAngle As Double = 0
    ' The unit is radian
    Dim endAngle As Double = 2 * Math.PI
    ' this arc will be a circle
    Return Arc.Create(plane, radius, startAngle, endAngle)
End Function

Parameters

Parameter	Type	Description
plane	Plane	The plane which the arc resides. The plane's origin is the center of the arc.
radius	Double	The radius of the arc.
startAngle	Double	The start angle of the arc (in radians).
endAngle	Double	The end angle of the arc (in radians).

Return Value

Type	Description
Arc	The new arc.

Exceptions

Exception	Condition
ArgumentNullException	A non-optional argument was NULL
ArgumentOutOfRangeException	The given value for radius must be greater than 0 and no more than 30000 feet.
ArgumentsInconsistentException	Start angle must be less than end angle. -or- Curve length is too small for Revit's tolerance (as identified by Application.ShortCurveTolerance).