DSLineDrawingItem

The DSLineDrawingItem class is a subclass of DSDrawingItem and represents a line drawing item used for drawing line segments on the view.

Definition

Assembly: DynamsoftCameraEnhancer.xcframework

Objective-C
Swift

@interface DSLineDrawingItem : DSDrawingItem

```
class LineDrawingItem : DSDrawingItem
```

Attributes

Attributes	Type	Description
`line`	DSLineSegment *	Get the line information of the DSLineDrawingItem.

Methods

Method	Description
`initWithLine`	Create an instance of DSLineDrawingItem.

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.

line

The property that stores the line information of the DSLineDrawingItem in a DSLineSegment object.

Objective-C
Swift

@property(nonatomic, readonly) DSLineSegment *line;

```
var line: DSLineSegment { get }
```

initWithLine

Create an instance of DSLineDrawingItem.

Objective-C
Swift

- (instancetype)initWithLine:(DSLineSegment *)line;

```
init(line: DSLineSegment)
```
Parameters

line: A DSLineSegment object that stores the line coordinates information.

Return Value

An instance of DSLineDrawingItem.

Code Snippet

Objective-C
Swift

DSLineSegment *line = [[DSLineSegment alloc] init];
DSLineDrawingItem *item = [[DSLineDrawingItem alloc] initWithLine:line];

let line = DSLineSegment()
let item = DSLineDrawingItem(line: line)

initWithLine:coordinateBase:

Create an instance of DSLineDrawingItem.

Objective-C
Swift

- (instancetype)initWithLine:(DSLineSegment *)line
          coordinateBase:(DSCoordinateBase)coordinateBase;

init(line: DSLineSegment, coordinateBase: DSCoordinateBase)

Parameters

line: A DSLineSegment object that stores the line coordinates information.

coordinateBase: The coordinate base of the DrawingItem.

Return Value

An instance of DSLineDrawingItem.

Code Snippet

Objective-C
Swift

DSLineSegment *line = [[DSLineSegment alloc] init];
DSLineDrawingItem *item = [[DSLineDrawingItem alloc] initWithLine:line coordinateBase:DSCoordinateBaseView];

let line = DSLineSegment()
let item = DSLineDrawingItem(line: line, coordinateBase: .view)