CentredElem

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 centre of the bounding rectangle. consider also using cenDefault.

The height of the BoundingRect of this object.

The width of the BoundingRect of this object.

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

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 X component of the centre.

The Y component of the centre.

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 X axis by negating y. The return type will be narrowed in sub traits / classes.

2D Transformation using a AxlignMatrix. The return type will be narrowed in subclasses / traits.

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

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.

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.

Translate 2D geometric transformation in the X dimension, returning a GeomElem. The Return type will be narrowed in sub traits.

Translate 2D geometric transformation in the Y dimension, returning a GeomElem. The Return type will be narrowed in sub traits.