Class Arc

Represents a circular arc EntityObject.

Inheritance
System.Object
DxfObject
EntityObject
Arc
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 Arc : EntityObject, IHasXData, ICloneable

Constructors

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Arc()

Initializes a new instance of the Arc class.

Declaration
public Arc()
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Arc(Vector2, Double, Double, Double)

Initializes a new instance of the Arc class.

Declaration
public Arc(Vector2 center, double radius, double startAngle, double endAngle)
Parameters
Type Name Description
Vector2 center

Arc Vector2 in world coordinates.
System.Double radius

Arc radius.
System.Double startAngle

Arc start angle in degrees.
System.Double endAngle

Arc end angle in degrees.
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Arc(Vector3, Double, Double, Double)

Initializes a new instance of the Arc class.

Declaration
public Arc(Vector3 center, double radius, double startAngle, double endAngle)
Parameters
Type Name Description
Vector3 center

Arc Vector3 in world coordinates.
System.Double radius

Arc radius.
System.Double startAngle

Arc start angle in degrees.
System.Double endAngle

Arc end angle in degrees.

Properties

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Center

Gets or sets the arc Vector3 in world coordinates.

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

Gets or sets the arc end angle in degrees.

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

Gets or sets the arc radius.

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

Gets or sets the arc start angle in degrees.

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

Gets or sets the arc thickness.

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

Methods

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Clone()

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

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

A new Arc that is a copy of this instance.
Overrides
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PolygonalVertexes(Int32)

Converts the arc in a list of vertexes.

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

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

A list vertexes that represents the arc expressed in object coordinate system.
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ToPolyline(Int32)

Converts the arc in a Polyline.

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

Number of divisions.
Returns
Type Description
LwPolyline

A new instance of LwPolyline that represents the arc.
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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

Non-uniform scaling is not supported, create an ellipse arc from the arc data and transform that instead.
Matrix3 adopts the convention of using column vectors to represent a transformation matrix.

Implements

System.ICloneable