Class EllipticalArc

An elliptical arc.

Inheritance
System.Object
Curve
BoundedCurve
TrimmedCurve<Ellipse>
EllipticalArc
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: Elements.Geometry
Assembly: Hypar.Elements.dll
Syntax
public class EllipticalArc : TrimmedCurve<Ellipse>, ICurve, ITransformable<Curve>, IBoundedCurve, ITrimmedCurve<Ellipse>

Constructors

EllipticalArc(Ellipse, Double, Double)

Create an elliptical arc.

Declaration
public EllipticalArc(Ellipse ellipse, double startAngle, double endAngle)
Parameters
Type Name Description
Ellipse ellipse

The ellipse on which this trim is based.
System.Double startAngle

The start angle of the trim in degrees.
System.Double endAngle

The end parameter of the trim in degrees.

EllipticalArc(Vector3, Double, Double, Double, Double)

Create an elliptical arc.

Declaration
[JsonConstructor]
public EllipticalArc(Vector3 center, double majorAxis, double minorAxis, double startAngle, double endAngle)
Parameters
Type Name Description
Vector3 center

The center of the ellipse.
System.Double majorAxis

The major axis (X) of the ellipse.
System.Double minorAxis

The minor axis (Y) of the ellipse.
System.Double startAngle

The start parameter of the trim.
System.Double endAngle

The end parameter of the trim.

Properties

Domain

The domain of the curve.

Declaration
[JsonIgnore]
public override Domain1d Domain { get; }
Property Value
Type Description
Domain1d
Overrides

EndAngle

The angle from 0.0, in degrees, at which the arc will end with respect to the positive X axis.

Declaration
[JsonProperty("EndAngle", Required = Required.Always)]
[Range(0, 360)]
public double EndAngle { get; protected set; }
Property Value
Type Description
System.Double

StartAngle

The angle from 0.0, in degrees, at which the arc will start with respect to the positive X axis.

Declaration
[JsonProperty("StartAngle", Required = Required.Always)]
[Range(0, 360)]
public double StartAngle { get; protected set; }
Property Value
Type Description
System.Double

Methods

ArcLength(Double, Double)

Calculate the length of the elliptical arc between start and end parameters.

Declaration
public override double ArcLength(double start, double end)
Parameters
Type Name Description
System.Double start
System.Double end
Returns
Type Description
System.Double

The length of the elliptical arc between start and end.
Overrides

Bounds()

The bounds of the elliptical arc.

Declaration
public override BBox3 Bounds()
Returns
Type Description
BBox3
Overrides

GetSubdivisionParameters(Double, Double)

Get parameters to be used to find points along the curve for visualization.

Declaration
public override double[] GetSubdivisionParameters(double startSetbackDistance = 0, double endSetbackDistance = 0)
Parameters
Type Name Description
System.Double startSetbackDistance

An optional setback from the start of the curve.
System.Double endSetbackDistance

An optional setback from the end of the curve.
Returns
Type Description
System.Double[]

A collection of parameter values.
Overrides

Length()

Calculate the length of the elliptical arc.

Declaration
public override double Length()
Returns
Type Description
System.Double

The length of the elliptical arc.
Overrides

ParameterAtDistanceFromParameter(Double, Double)

Get the parameter at a distance from the start parameter along the curve.

Declaration
public override double ParameterAtDistanceFromParameter(double distance, double start)
Parameters
Type Name Description
System.Double distance

The distance from the start parameter.
System.Double start

The parameter from which to measure the distance.
Returns
Type Description
System.Double
Overrides

PointAt(Double)

Get a point at a parameter on the elliptical arc.

Declaration
public override Vector3 PointAt(double u)
Parameters
Type Name Description
System.Double u

The parameter at which to find a point.
Returns
Type Description
Vector3

A point.
Overrides

TransformAt(Double)

Get a transform at a parameter on the elliptical arc.

Declaration
public override Transform TransformAt(double u)
Parameters
Type Name Description
System.Double u

The parameter at which to find a transform.
Returns
Type Description
Transform

A transform.
Overrides

Transformed(Transform)

Create a transformed copy of this curve. Use of non-affine transforms (i.e. scale) will result in unpredictable results for curve methods such as Length().

Declaration
public override Curve Transformed(Transform transform)
Parameters
Type Name Description
Transform transform

The transform to apply.
Returns
Type Description
Curve
Overrides

Implements