M

Arc.Create

Description:
Creates a new geometric arc object based on center, radius, unit vectors, 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.

Overloads (3):

Create(Plane,Double,Double,Double)

Create(XYZ,Double,Double,Double,XYZ,XYZ)

Create(XYZ,XYZ,XYZ)

public static Arc Create(
	XYZ center,
	double radius,
	double startAngle,
	double endAngle,
	XYZ xAxis,
	XYZ yAxis
)

Public Shared Function Create ( _
	center As XYZ, _
	radius As Double, _
	startAngle As Double, _
	endAngle As Double, _
	xAxis As XYZ, _
	yAxis As XYZ _
) As Arc

public:
static Arc^ Create(
	XYZ^ center, 
	double radius, 
	double startAngle, 
	double endAngle, 
	XYZ^ xAxis, 
	XYZ^ yAxis
)

Autodesk.Revit.DB.XYZ

center

The center of the arc.
Double

radius

The radius of the arc.
Double

startAngle

The start angle of the arc (in radians).
Double

endAngle

The end angle of the arc (in radians).
Autodesk.Revit.DB.XYZ

xAxis

The x axis to define the arc plane. Must be normalized.
Autodesk.Revit.DB.XYZ

yAxis

The y axis to define the arc plane. Must be normalized.

Return Value The new arc. The new arc.

// Create a new arc defined by its center, radios, angles and 2 axes
double radius = 10;
double startAngle = 0;      // In radian
double endAngle = Math.PI;        // In radian
XYZ center = new XYZ(5, 0, 0);
XYZ xAxis = new XYZ(1, 0, 0);   // The x axis to define the arc plane. Must be normalized
XYZ yAxis = new XYZ(0, 1, 0);   // The y axis to define the arc plane. Must be normalized

Arc arc = Arc.Create(center, radius, startAngle, endAngle, xAxis, yAxis);

' Create a new arc defined by its center, radios, angles and 2 axes
Dim radius As Double = 10
Dim startAngle As Double = 0
' In radian
Dim endAngle As Double = Math.PI
' In radian
Dim center As New XYZ(5, 0, 0)
Dim xAxis As New XYZ(1, 0, 0)
' The x axis to define the arc plane. Must be normalized
Dim yAxis As New XYZ(0, 1, 0)
' The y axis to define the arc plane. Must be normalized
Dim arc__1 As Arc = Arc.Create(center, radius, startAngle, endAngle, xAxis, yAxis)

Autodesk.Revit.Exceptions.ArgumentNullException

A non-optional argument was NULL
Autodesk.Revit.Exceptions.ArgumentOutOfRangeException

xAxis is not length 1.0. -or- yAxis is not length 1.0. -or- The given value for radius must be between 0 and 30000 feet.
Autodesk.Revit.Exceptions.ArgumentsInconsistentException

The vectors xAxis and yAxis are not perpendicular. -or- Start angle must be less than end angle. -or- Curve length is too small for Revit's tolerance (as identified by Application.ShortCurveTolerance).