DSQuadrilateral

The DSQuadrilateral class represents a quadrilateral defined by four points.

Definition

Assembly: DynamsoftCore.framework

• Objective-C
• Swift

1. @interface DSQuadrilateral : NSObject
   

2. class Quadrilateral : NSObject
   

Methods & Attributes

points

An array of four Point objects defining the vertices of the quadrilateral.

• Objective-C
• Swift

1. @property (nonatomic, copy) NSArray *points;
   

2. var points: [CGPoint] { get set }
   

contains

Check whether the input point is contained by the quadrilateral.

• Objective-C
• Swift

1. - (BOOL)contains:(CGPoint)point;
   

2. func contains(_ point: CGPoint) -> Bool
   

Parameters

point: Input a point.

Return Value

A BOOL value that indicates whether the point is contained by the quadrilateral.

Code Snippet

• Objective-C
• Swift

1. BOOL result = [quadrilateral contains:point];
   

2. let result = quadrilateral.contains(point)
   

boundingRect

Get the bounding rectangle of the quadrilateral.

• Objective-C
• Swift

1. @property (nonatomic, readonly) CGRect *boundingRect;
   

2. var boundingRect: CGRect { get }
   

Return Value

The bounding rectangle of the quadrilateral.

Code Snippet

• Objective-C
• Swift

1. CGRect rect = [quadrilateral getBoundingRect];
   

2. let rect = quadrilateral.getBoundingRect()
   

centrePoint

Get the centre point of the quadrilateral.

• Objective-C
• Swift

1. @property (nonatomic, readonly) CGPoint *centrePoint;
   

2. var centrePoint: CGPoint { get }
   

Return Value

The centre point of the quadrilateral.

Code Snippet

• Objective-C
• Swift

1. CGPoint center = [quadrilateral getCentrePoint];
   

2. let center = quadrilateral.getCentrePoint()
   

area

Get the area of the quadrilateral.

• Objective-C
• Swift

1. @property (nonatomic, readonly) NSInteger *area;
   

2. var area: Int { get }
   

Return Value

The area of the quadrilateral.

Code Snippet

• Objective-C
• Swift

1. NSInteger area = [quadrilateral getArea];
   

2. let area = quadrilateral.getArea()