M

Ellipse.CreateCurve

Description:
Creates a new geometric ellipse or elliptical arc object.

Remarks:
If the angle range is equal to or greater than 2 * PI, the curve will be automatically converted to an unbounded ellipse. If xRadius and yRadius are almost equal, the curve will be returned as an arc.

public static Curve CreateCurve(
	XYZ center,
	double xRadius,
	double yRadius,
	XYZ xAxis,
	XYZ yAxis,
	double startParameter,
	double endParameter
)

Public Shared Function CreateCurve ( _
	center As XYZ, _
	xRadius As Double, _
	yRadius As Double, _
	xAxis As XYZ, _
	yAxis As XYZ, _
	startParameter As Double, _
	endParameter As Double _
) As Curve

public:
static Curve^ CreateCurve(
	XYZ^ center, 
	double xRadius, 
	double yRadius, 
	XYZ^ xAxis, 
	XYZ^ yAxis, 
	double startParameter, 
	double endParameter
)

Autodesk.Revit.DB.XYZ

center

The center.
System.Double

xRadius

The x vector radius of the ellipse.
System.Double

yRadius

The y vector radius of the ellipse.
Autodesk.Revit.DB.XYZ

xAxis

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

yAxis

The y axis to define the ellipse plane. Must be normalized.
System.Double

startParameter

The raw parameter value at the start of the ellipse.
System.Double

endParameter

The raw parameter value at the end of the ellipse.

Return Value Curve The new ellipse or elliptical arc.

Autodesk.Revit.Exceptions.ArgumentNullException

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

The given value for xRadius must be greater than 0 and no more than 30000 feet. -or- The given value for yRadius must be greater than 0 and no more than 30000 feet. -or- xAxis is not length 1.0. -or- yAxis is not length 1.0.
Autodesk.Revit.Exceptions.ArgumentsInconsistentException

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