Object TAffineBox

Unit

BGRABitmapTypes

Declaration

type TAffineBox = object(TObject)

Description

Object representing an affine box.

Box is defined by three corner points (top-left, top-tight, bottom-left).

Hierarchy

TObject
TAffineBox

Overview

Fields

	`BottomLeft: TPointF;`
	`TopLeft: TPointF;`
	`TopRight: TPointF;`

Methods

	`class function AffineBox(ARectF: TRectF): TAffineBox; overload; static;`
	`class function AffineBox(ATopLeft, ATopRight, ABottomLeft: TPointF): TAffineBox; overload; static;`
	`function Contains(APoint: TPointF): boolean;`
	`class function EmptyBox: TAffineBox; static;`
	`procedure Inflate(AHoriz, AVert: single);`
	`procedure Offset(AOfsX, AOfsY: single); overload;`
	`procedure Offset(AOfs: TPointF); overload;`

Properties

	`property AsPolygon: ArrayOfTPointF read GetAsPolygon;`
	`property BottomRight: TPointF read GetBottomRight;`
	`property Center: TPointF read GetCenter;`
	`property Height: single read GetHeight;`
	`property IsEmpty: boolean read GetIsEmpty;`
	`property RectBounds: TRect read GetRectBounds;`
	`property RectBoundsF: TRectF read GetRectBoundsF;`
	`property Surface: single read GetSurface;`
	`property Width: single read GetWidth;`

Description

Fields

	`BottomLeft: TPointF;`
Bottom-left corner of the affine box

	`TopLeft: TPointF;`
Top-left corner of the affine box

	`TopRight: TPointF;`
Top-right corner of the affine box

Methods

	`class function AffineBox(ARectF: TRectF): TAffineBox; overload; static;`
Creates an affine box from a TRectF structure

	`class function AffineBox(ATopLeft, ATopRight, ABottomLeft: TPointF): TAffineBox; overload; static;`
Creates an affine box defined by three corner points

	`function Contains(APoint: TPointF): boolean;`
Checks if a point is contained within the affine box

	`class function EmptyBox: TAffineBox; static;`
Creates an empty affine box

	`procedure Inflate(AHoriz, AVert: single);`
Inflates the affine box along its axes by specified horizontal and vertical amounts

	`procedure Offset(AOfsX, AOfsY: single); overload;`
Offsets the affine box by specified X and Y amounts

	`procedure Offset(AOfs: TPointF); overload;`
Offsets the affine box by a specified point

Properties

	`property AsPolygon: ArrayOfTPointF read GetAsPolygon;`
Affine box as an array of points (polygon)

	`property BottomRight: TPointF read GetBottomRight;`
Bottom-right corner of the affine box

	`property Center: TPointF read GetCenter;`
`Center` point of the affine box

	`property Height: single read GetHeight;`
`Height` of the affine box along its axes

	`property IsEmpty: boolean read GetIsEmpty;`
Check if the affine box is empty (containing empty points, not just of zero size)

	`property RectBounds: TRect read GetRectBounds;`
Bounding rectangle as TRect

	`property RectBoundsF: TRectF read GetRectBoundsF;`
Bounding rectangle as TRectF

	`property Surface: single read GetSurface;`
`Surface` area of the affine box

	`property Width: single read GetWidth;`
`Width` of the affine box along its axes