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

Public Class

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

Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)

Syntax

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

Parameters

plane Plane

The plane which the arc resides. The plane’s origin is the center of the arc.

radiusDouble

The radius of the arc.

startAngleDouble

The start angle of the arc (in radians).

endAngleDouble

The end angle of the arc (in radians).

Return Value

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).

Remarks

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

Example

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);
}