DSQuadDrawingItem

The DSQuadDrawingItem class is a subclass of DSDrawingItem. It represents a drawing item that draws quadrilaterals on the view.

Definition

Assembly: DynamsoftCameraEnhancer.xcframework

• Objective-C
• Swift

1. @interface DSQuadDrawingItem : DSDrawingItem
   

2. class QuadDrawingItem : DrawingItem
   

Attributes

Attributes	Type	Description
quad	DSQuadrilateral *	Get the quadrilateral information of the DSQuadDrawingItem.

Methods

Method	Description
initWithQuad	Create an instance of DSQuadDrawingItem.

Interited Attributes

The following attributes are inherited from the base class DrawingItem.

Attributes	Type	Description
drawingStyleId	NSInteger	The DrawingStyle of the DrawingItem. If a DrawingItem holds a drawingStyleId, it will not use the default style of its layer.
state	DSDrawingItemState	The state of the DrawingItem.
CoordinateBase	DSCoordinateBase	The coordinate base of the DrawingItem. The coordinate base is image by default.

Interited Methods

The following methods are inherited from the base class DrawingItem.

Method	Description
getMediaType	Get the media type of the DrawingItem.
addNote	Add a note to the DrawingItem.
getNote	Get the specified DSNote.
hasNote	Check whether the specified Note exists.
updateNote	Update the content of the specified DSNote.
deleteNote	Remove the specified DSNote with the specified name.
getAllNotes	Get all DSNotes of this DrawingItem.
clearNotes	Remove all DSNotes of this DrawingItem.

quad

The property that stores the coordinate information of the DSQuadDrawingItem in a DSQuadrilateral object.

• Objective-C
• Swift

1. @property(strong, nonatomic, readonly) DSQuadrilateral *quad;
   

2. var quad: DSQuadrilateral { get }
   

initWithQuad

Create an instance of DSQuadDrawingItem.

• Objective-C
• Swift

1. - (instancetype)initWithQuad:(DSQuadrilateral *)quad;
   

2. init(quad: DSQuadrilateral)
   

Parameters

quad: A DSQuadrilateral object that stores the quadrilateral coordinates information.

Return Value

An instance of DSQuadDrawingItem.

Code Snippet

• Objective-C
• Swift

1. DSQuadDrawingItem *item = [[DSQuadDrawingItem alloc] initWithQuad:quad];
   

2. let item = QuadDrawingItem(quad: quad)
   

initWithQuad:coordinateBase

Create an instance of DSQuadDrawingItem.

• Objective-C
• Swift

1. - (instancetype)initWithQuad:(DSQuadrilateral *)quad 
             coordinateBase:(DSCoordinateBase)coordinateBase;
   

2. init(quad: DSQuadrilateral, coordinateBase: DSCoordinateBase)
   

Parameters

quad: A DSQuadrilateral object that stores the quadrilateral coordinates information.

coordinateBase: The coordinate base of the DrawingItem.

Return Value

An instance of DSQuadDrawingItem.

Code Snippet

• Objective-C
• Swift

1. DSQuadDrawingItem *item = [[DSQuadDrawingItem alloc] initWithQuad:quad coordinateBase:base];
   

2. let item = QuadDrawingItem(quad: quad, coordinateBase: base)