# EArc

trait EArc extends EllipseBased with CurveSeg

Elliptical Arc. the trait has 2 implementations CArc and EArc.EArcImp.

Companion
object
trait CurveSeg
trait Drawable
trait GeomElem
class Object
trait Matchable
class Any
class EArcImp
trait EArclign
class CArc

## Value members

def counter: Int

### Concrete methods

def cenEnd: Vec2

The vector [Vec2] from the centre of the arc to the end point of the arc.

The vector [Vec2] from the centre of the arc to the end point of the arc.

The vector [Vec2] from the centre of the arc to the start point of the arc.

The vector [Vec2] from the centre of the arc to the start point of the arc.

override def draw(lineColour: Colour, lineWidth: Double): EArcDraw
Definition Classes

The angle of the end point of the arc, relative to its centre.

The angle of the end point of the arc, relative to its centre.

The angle of the end point of the arc, relative to its centre.

The angle of the end point of the arc, relative to its centre.

def endDegs: Double

The value of the angle of the end point of the arc, relative to its centre in degrees.

The value of the angle of the end point of the arc, relative to its centre in degrees.

The line segment [LineSeg] from the centre of the arc to the end point of the arc.

The line segment [LineSeg] from the centre of the arc to the end point of the arc.

The line segment [LineSeg] from the centre of the arc to the start point of the arc.

The line segment [LineSeg] from the centre of the arc to the start point of the arc.

override def negX: EArc

Mirror, reflection 2D geometric transformation across the Y axis by negating X. The return type will be narrowed in sub traits / classes.

Mirror, reflection 2D geometric transformation across the Y axis by negating X. The return type will be narrowed in sub traits / classes.

Definition Classes
override def negY: EArc

Mirror, reflection 2D geometric transformation across the X axis by negating y, on this EArc retruns an EARc.

Mirror, reflection 2D geometric transformation across the X axis by negating y, on this EArc retruns an EARc.

Definition Classes
override def prolign(matrix: ProlignMatrix): EArc

2D Transformation using a ProlignMatrix. The return type will be narrowed in sub classes / traits.

2D Transformation using a ProlignMatrix. The return type will be narrowed in sub classes / traits.

Definition Classes
override def reflect(lineLike: LineLike): EArc

Reflect 2D geometric transformation across a line, line segment or ray on a EArc returns an EArc.

Reflect 2D geometric transformation across a line, line segment or ray on a EArc returns an EArc.

Definition Classes
override def rotate(angle: AngleVec): EArc

Rotation 2D geometric transformation on a EArc. The return type will be narrowed in sub classes and traits.

Rotation 2D geometric transformation on a EArc. The return type will be narrowed in sub classes and traits.

Definition Classes
override def rotate180: EArc
Definition Classes
override def rotate270: EArc
Definition Classes
override def rotate90: EArc
Definition Classes
override def scale(operand: Double): EArc

Uniform 2D geometric scaling transformation, returns an EArc.

Uniform 2D geometric scaling transformation, returns an EArc.

Definition Classes
override def scaleXY(xOperand: Double, yOperand: Double): EArc

XY scaling 2D geometric transformation on this EArc returns an EArc.This allows different scaling factors across X and Y dimensions.

XY scaling 2D geometric transformation on this EArc returns an EArc.This allows different scaling factors across X and Y dimensions.

Definition Classes
override def shearX(operand: Double): EArc

Shear 2D geometric transformation along the X Axis on this EArc returns an EArc.

Shear 2D geometric transformation along the X Axis on this EArc returns an EArc.

Definition Classes
override def shearY(operand: Double): EArc

Shear 2D geometric transformation along the Y Axis on this EArc, returns an EArc.

Shear 2D geometric transformation along the Y Axis on this EArc, returns an EArc.

Definition Classes
override def slateXY(xDelta: Double, yDelta: Double): EArc

Translate 2D geometric transformation on this EArc, returns an EArc.

Translate 2D geometric transformation on this EArc, returns an EArc.

Definition Classes

The angle of the start point of the arc, relative to its centre.

The angle of the start point of the arc, relative to its centre.

The angle of the start point of the arc, relative to its centre for graphical systems where the Y axis points down.

The angle of the start point of the arc, relative to its centre for graphical systems where the Y axis points down.

def startDegs: Double

The value of the angle of the start point of the arc, relative to its centre in degrees.

The value of the angle of the start point of the arc, relative to its centre in degrees.

def startDegsYDown: Double

The value of the angle of the start point of the arc, relative to its centre in degrees.

The value of the angle of the start point of the arc, relative to its centre in degrees.

### Inherited methods

def axesPt1: Pt2

The end point of axis 1. By default this is on the right of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

The end point of axis 1. By default this is on the right of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

Inherited from
EllipseBased
def axesPt1x: Double

The X component of the end point of axis 1. By default this is on the right of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

The X component of the end point of axis 1. By default this is on the right of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

Inherited from
EllipseBased
def axesPt1y: Double

The Y component of the end point of axis 1. By default this is on the right of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

The Y component of the end point of axis 1. By default this is on the right of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

Inherited from
EllipseBased
def axesPt2: Pt2

The start point of axis 2. By default this is at the bottom of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

The start point of axis 2. By default this is at the bottom of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

Inherited from
EllipseBased
def axesPt2x: Double

The X component of the start point of axis 2. By default this is at the bottom of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

The X component of the start point of axis 2. By default this is at the bottom of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

Inherited from
EllipseBased
def axesPt2y: Double

The Y component of the start point of axis 2. By default this is at the bottom of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

The Y component of the start point of axis 2. By default this is at the bottom of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

Inherited from
EllipseBased
def axesPt3: Pt2

The start point of axis 1. By default this is on the left of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

The start point of axis 1. By default this is on the left of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

Inherited from
EllipseBased
def axesPt3x: Double

The X component of the start point of axis 1. By default this is on the left of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

The X component of the start point of axis 1. By default this is on the left of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

Inherited from
EllipseBased
def axesPt3y: Double

The Y component of the start point of axis 1. By default this is on the left of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

The Y component of the start point of axis 1. By default this is on the left of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

Inherited from
EllipseBased
def axesPt4: Pt2

The end point of axis 2. By default this is at the top of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

The end point of axis 2. By default this is at the top of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

Inherited from
EllipseBased
def axesPt4x: Double

The X component of the end point of axis 2. By default this is at the top of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

The X component of the end point of axis 2. By default this is at the top of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

Inherited from
EllipseBased
def axesPt4y: Double

The Y component of the end point of axis 2. By default this is at the top of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

The Y component of the end point of axis 2. By default this is at the top of the Ellipse. Mathematically this can be referred to as a vertex for the major axis or a co-vertex for the minor axis.

Inherited from
EllipseBased
def cen: Pt2

The centre of this geometric / graphical element. The centre will not change if the object type is capable of being rotated and is rotated. The cenDefault on other bounded elements may move relative to points on the object when the object is rotated.

The centre of this geometric / graphical element. The centre will not change if the object type is capable of being rotated and is rotated. The cenDefault on other bounded elements may move relative to points on the object when the object is rotated.

Inherited from
WithCentre
def cenP1: Vec2

The 2D vector Vec2 from the centre point to pAxes1, the end point of axis 1, by default on the right of the Ellipse this arc is based on.

The 2D vector Vec2 from the centre point to pAxes1, the end point of axis 1, by default on the right of the Ellipse this arc is based on.

Inherited from
EllipseBased
def cenP2: Vec2

The 2D vector Vec2 from the centre point to pAxes2, the start point of axis 2, by default at the bottom of the Ellipse this arc is based on.

The 2D vector Vec2 from the centre point to pAxes2, the start point of axis 2, by default at the bottom of the Ellipse this arc is based on.

Inherited from
EllipseBased
def cenP3: Vec2

The 2D vector Vec2 from the centre point to pAxes3, the start point of axis 1 , by default on the left of the Ellipse this arc is based on.

The 2D vector Vec2 from the centre point to pAxes3, the start point of axis 1 , by default on the left of the Ellipse this arc is based on.

Inherited from
EllipseBased
def cenP4: Vec2

The 2D vector Vec2 from the centre point to pAxes4, the end point of axis 2, by default at the top of the Ellipse this arc is based on.

The 2D vector Vec2 from the centre point to pAxes4, the end point of axis 2, by default at the top of the Ellipse this arc is based on.

Inherited from
EllipseBased
def cenX: Double

The X component of the centre.

The X component of the centre.

Inherited from
WithCentre
def cenY: Double

The Y component of the centre.

The Y component of the centre.

Inherited from
WithCentre
final def diameter1: Double

Diameter 1 of the ellipse. By default this is the horizontal axis of the ellipse.This can be the major or minor axis.

Diameter 1 of the ellipse. By default this is the horizontal axis of the ellipse.This can be the major or minor axis.

Inherited from
EllipseBased
final def diameter2: Double

Diameter 2 of this ellipse. By default this is the vertical axis of the ellipse. This can be the major or minor axis.

Diameter 2 of this ellipse. By default this is the vertical axis of the ellipse. This can be the major or minor axis.

Inherited from
EllipseBased
def endX: Double

The X component of the end point of this curve segment. Often called x2 on a line or x4 on a cubic bezier in other APIs.

The X component of the end point of this curve segment. Often called x2 on a line or x4 on a cubic bezier in other APIs.

Inherited from
CurveSeg
def endY: Double

The Y component of the end point of this curve segment. Often called y2 on a line or y4 on a cubic bezier in other APIs.

The Y component of the end point of this curve segment. Often called y2 on a line or y4 on a cubic bezier in other APIs.

Inherited from
CurveSeg
final def pEnd: Pt2

The end point Pt2 of this curve segment. Often called p2 on a line or p4 on a cubic bezier in other APIs.

The end point Pt2 of this curve segment. Often called p2 on a line or p4 on a cubic bezier in other APIs.

Inherited from
CurveSeg
final def pStart: Pt2

Start point of this curve segment, often called p1

Start point of this curve segment, often called p1

Inherited from
CurveSeg

Radius 1 of the ellipse. By default this is the horizontal axis of the ellipse. This can be the major or minor axis.

Radius 1 of the ellipse. By default this is the horizontal axis of the ellipse. This can be the major or minor axis.

Inherited from
EllipseBased

Radius 2 of the ellipse. By default this is the vertical axis of the ellipse. This can be the major or minor axis.

Radius 2 of the ellipse. By default this is the vertical axis of the ellipse. This can be the major or minor axis.

Inherited from
EllipseBased
def startX: Double

The X component of the start point of this curve segment often called x1 in other APIs.

The X component of the start point of this curve segment often called x1 in other APIs.

Inherited from
CurveSeg
def startY: Double

The Y component of the start point of this curve segment, often called y1 in other APIs.

The Y component of the start point of this curve segment, often called y1 in other APIs.

Inherited from
CurveSeg