# CentredElem

trait CentredElem extends BoundedElem with WithCentre

A 2D geometric element with a defined centre.

trait GeomElem
class Object
trait Matchable
class Any

## Value members

### Concrete methods

final override def cenDefault: Pt2

The default centre of this object is the centre. The centre will not change if the object type is capable of being rotated and is rotated.

The default centre of this object is the centre. The centre will not change if the object type is capable of being rotated and is rotated.

Definition Classes

### Inherited methods

Inherited from
BoundedElem
@inline
final def boundCen: Pt2

The centre of the bounding rectangle. consider also using cenDefault.

The centre of the bounding rectangle. consider also using cenDefault.

Inherited from
BoundedElem
def boundingHeight: Double
Inherited from
BoundedElem

The bounding Rectangle provides an initial exclusion test as to whether the pointer is inside the polygon / shape

The bounding Rectangle provides an initial exclusion test as to whether the pointer is inside the polygon / shape

Inherited from
BoundedElem
def boundingWidth: Double

The width of the BoundingRect of this object.

The width of the BoundingRect of this object.

Inherited from
BoundedElem
Inherited from
BoundedElem
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 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
def negX

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.

Inherited from
GeomElem
def negY

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

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

Inherited from
GeomElem

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.

Inherited from
GeomElem
def reflect(lineLike: LineLike): GeomElem

Reflect 2D geometric transformation across a line, line segment or ray on a GeomElem. The return type will be narrowed in sub classes and traits.

Reflect 2D geometric transformation across a line, line segment or ray on a GeomElem. The return type will be narrowed in sub classes and traits.

Inherited from
GeomElem
def rotate(angle: AngleVec): GeomElem

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

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

Inherited from
GeomElem

Rotation of 180 degrees, 2D geometric transformation on a GeomElem, returns a GeomElem. The return type will be narrowed in sub classes and traits.

Rotation of 180 degrees, 2D geometric transformation on a GeomElem, returns a GeomElem. The return type will be narrowed in sub classes and traits.

Inherited from
GeomElem

Rotation positive or anti clockwise 270 degrees, 2D geometric transformation on a GeomElem, returns a GeomElem. The return type will be narrowed in sub classes and traits.

Rotation positive or anti clockwise 270 degrees, 2D geometric transformation on a GeomElem, returns a GeomElem. The return type will be narrowed in sub classes and traits.

Inherited from
GeomElem

Rotation positive or anti clockwise 90 degrees, 2D geometric transformation on a GeomElem, returns a GeomElem. The return type will be narrowed in sub classes and traits.

Rotation positive or anti clockwise 90 degrees, 2D geometric transformation on a GeomElem, returns a GeomElem. The return type will be narrowed in sub classes and traits.

Inherited from
GeomElem
def scale(operand: Double): GeomElem

Uniform 2D geometric scaling transformation. The scale name was chosen for this operation as it is normally the desired operation and preserves Circles and Squares. Use the xyScale method for differential scaling. The Return type will be narrowed in sub traits / classes.

Uniform 2D geometric scaling transformation. The scale name was chosen for this operation as it is normally the desired operation and preserves Circles and Squares. Use the xyScale method for differential scaling. The Return type will be narrowed in sub traits / classes.

Inherited from
GeomElem
def scaleXY(xOperand: Double, yOperand: Double): GeomElem

Scaling X and Y axes independently, 2D geometric transformation on this GeomElem, returns a new GeomElem. This allows different scaling factors across X and Y dimensions. The return type will be narrowed in sub classes and traits. This is an affine transformation but it is not a similar transformation.

Scaling X and Y axes independently, 2D geometric transformation on this GeomElem, returns a new GeomElem. This allows different scaling factors across X and Y dimensions. The return type will be narrowed in sub classes and traits. This is an affine transformation but it is not a similar transformation.

Inherited from
GeomElem
def shearX(operand: Double): GeomElem

Shear 2D geometric transformation along the X Axis on a GeomElem. The return type will be narrowed in sub classes and traits. This is an affine transformation but it is not a similar transformation.

Shear 2D geometric transformation along the X Axis on a GeomElem. The return type will be narrowed in sub classes and traits. This is an affine transformation but it is not a similar transformation.

Inherited from
GeomElem
def shearY(operand: Double): GeomElem

Shear 2D geometric transformation along the Y Axis on a GeomElem. The return type will be narrowed in sub classes and traits. This is an affine transformation but it is not a similar transformation.

Shear 2D geometric transformation along the Y Axis on a GeomElem. The return type will be narrowed in sub classes and traits. This is an affine transformation but it is not a similar transformation.

Inherited from
GeomElem
def slateXY(xDelta: Double, yDelta: Double): GeomElem

Translate 2D geometric transformation, taking the xOffset and yOffset as parameters on this GeomElem returning a GeomElem. The Return type will be narrowed in sub traits. End users will often want to use the slate method taking a Pt2 or Vec2 as a parameter, the slateX or the slateY methods. These methods will be offered as extension methods using this method for their implementations.

Translate 2D geometric transformation, taking the xOffset and yOffset as parameters on this GeomElem returning a GeomElem. The Return type will be narrowed in sub traits. End users will often want to use the slate method taking a Pt2 or Vec2 as a parameter, the slateX or the slateY methods. These methods will be offered as extension methods using this method for their implementations.

Inherited from
GeomElem
Inherited from
BoundedElem
Inherited from
BoundedElem