Class Ellipse

Represents an ellipse EntityObject.

Inheritance
System.Object
DxfObject
EntityObject
Ellipse
Implements
System.ICloneable
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)
Namespace: netDxf.Entities
Assembly: CADability.dll
Syntax
public class Ellipse : EntityObject, IHasXData, ICloneable

Constructors

| Improve this Doc View Source

Ellipse()

Initializes a new instance of the Ellipse class.

Declaration
public Ellipse()
| Improve this Doc View Source

Ellipse(Vector2, Double, Double)

Initializes a new instance of the Ellipse class.

Declaration
public Ellipse(Vector2 center, double majorAxis, double minorAxis)
Parameters
Type Name Description
Vector2 center

Ellipse Vector2 in object coordinates.
System.Double majorAxis

Ellipse major axis.
System.Double minorAxis

Ellipse minor axis.
Remarks

The center Z coordinate represents the elevation of the arc along the normal.

| Improve this Doc View Source

Ellipse(Vector3, Double, Double)

Initializes a new instance of the Ellipse class.

Declaration
public Ellipse(Vector3 center, double majorAxis, double minorAxis)
Parameters
Type Name Description
Vector3 center

Ellipse Vector3 in object coordinates.
System.Double majorAxis

Ellipse major axis.
System.Double minorAxis

Ellipse minor axis.
Remarks

The center Z coordinate represents the elevation of the arc along the normal.

Properties

| Improve this Doc View Source

Center

Gets or sets the ellipse Vector3.

Declaration
public Vector3 Center { get; set; }
Property Value
Type Description
Vector3
Remarks

The center Z coordinate represents the elevation of the arc along the normal.

| Improve this Doc View Source

EndAngle

Gets or sets the ellipse end angle in degrees.

Declaration
public double EndAngle { get; set; }
Property Value
Type Description
System.Double
Remarks

To get a full ellipse set the end angle equal to the start angle.

| Improve this Doc View Source

EndParameter

Declaration
public double EndParameter { get; set; }
Property Value
Type Description
System.Double
| Improve this Doc View Source

IsFullEllipse

Checks if the actual instance is a full ellipse.

Declaration
public bool IsFullEllipse { get; }
Property Value
Type Description
System.Boolean
Remarks

An ellipse is considered full when its start and end angles are equal.

| Improve this Doc View Source

MajorAxis

Gets or sets the ellipse mayor axis.

Declaration
public double MajorAxis { get; set; }
Property Value
Type Description
System.Double
| Improve this Doc View Source

MinorAxis

Gets or sets the ellipse minor axis.

Declaration
public double MinorAxis { get; set; }
Property Value
Type Description
System.Double
| Improve this Doc View Source

Rotation

Gets or sets the ellipse local rotation in degrees along its normal.

Declaration
public double Rotation { get; set; }
Property Value
Type Description
System.Double
| Improve this Doc View Source

StartAngle

Gets or sets the ellipse start angle in degrees.

Declaration
public double StartAngle { get; set; }
Property Value
Type Description
System.Double
Remarks

To get a full ellipse set the start angle equal to the end angle.

| Improve this Doc View Source

StartParameter

Declaration
public double StartParameter { get; set; }
Property Value
Type Description
System.Double
| Improve this Doc View Source

Thickness

Gets or sets the ellipse thickness.

Declaration
public double Thickness { get; set; }
Property Value
Type Description
System.Double

Methods

| Improve this Doc View Source

Clone()

Creates a new Ellipse that is a copy of the current instance.

Declaration
public override object Clone()
Returns
Type Description
System.Object

A new Ellipse that is a copy of this instance.
Overrides
| Improve this Doc View Source

PolarCoordinateRelativeToCenter(Double)

Calculate the local point on the ellipse for a given angle relative to the center.

Declaration
public Vector2 PolarCoordinateRelativeToCenter(double angle)
Parameters
Type Name Description
System.Double angle

Angle in degrees.
Returns
Type Description
Vector2

A local point on the ellipse for the given angle relative to the center.
| Improve this Doc View Source

PolygonalVertexes(Int32)

Converts the ellipse in a list of vertexes.

Declaration
public List<Vector2> PolygonalVertexes(int precision)
Parameters
Type Name Description
System.Int32 precision

Number of vertexes generated.
Returns
Type Description
System.Collections.Generic.List<Vector2>

A list vertexes that represents the ellipse expressed in object coordinate system.
| Improve this Doc View Source

ToPolyline(Int32)

Converts the ellipse in a Polyline.

Declaration
public LwPolyline ToPolyline(int precision)
Parameters
Type Name Description
System.Int32 precision

Number of vertexes generated.
Returns
Type Description
LwPolyline

A new instance of LwPolyline that represents the ellipse.
| Improve this Doc View Source

TransformBy(Matrix3, Vector3)

Moves, scales, and/or rotates the current entity given a 3x3 transformation matrix and a translation vector.

Declaration
public override void TransformBy(Matrix3 transformation, Vector3 translation)
Parameters
Type Name Description
Matrix3 transformation

Transformation matrix.
Vector3 translation

Translation vector.
Overrides
Remarks

Matrix3 adopts the convention of using column vectors to represent a transformation matrix.

Implements

System.ICloneable