ArcDrawingItem

The ArcDrawingItem class is a subclass of DrawingItem. It represents a drawing item that draws Arcs on the view.

Definition

Assembly: DynamsoftCaptureVisionBundle.xcframework

Objective-C
Swift

@interface DSArcDrawingItem : DSDrawingItem

```
class ArcDrawingItem : DSDrawingItem
```

Methods & Attributes

Method	Description
`initWithDrawingStyleId`	Create an instance of `ArcDrawingItem` with style, state, centre and radius.
`initWithCentre`	Create an instance of `ArcDrawingItem` with centre and radius.

Attributes	Type	Description
`centre`	CGPoint	The centre of the `ArcDrawingItem`.
`radius`	CGFloat	The radius of the `ArcDrawingItem`.

Interited Methods

The following methods are inherited from the superclass DrawingItem.

Method	Description
`setDrawingStyleId`	Set the `DrawingStyle` of the `DrawingItem`. If a `DrawingItem` holds a drawing style ID, it will not use the default style of its layer.
`getDrawingStyleId`	Get the DrawingStyle of the `DrawingItem`.
`setState`	Set the state of the `DrawingItem`.
`getState`	Get the state of the `DrawingItem`.
`getCoordinateBase`	Get the coordinate base of the `DrawingItem`. The coordinate base is image by default.
`getMediaType`	Get the media type of the `DrawingItem`.
`addNote`	Add a note to the `DrawingItem`.
`getNote`	Get the specified `Note`.
`hasNote`	Check whether the specified Note exists.
`updateNote`	Update the content of the specified `Note`.
`deleteNote`	Remove the specified `Note` with the specified name.
`getAllNotes`	Get all `Notes` of this DrawingItem.
`clearNotes`	Remove all `Notes` of this DrawingItem.

initWithDrawingStyleId

Create an instance of ArcDrawingItem with style, state, centre and radius.

Objective-C
Swift

- (instancetype)initWithDrawingStyleId:(NSUInteger)styleId
                             state:(DSDrawingItemState)state
                            centre:(CGPoint)centre
                            radius:(CGFloat)radius;

func initWithDrawingStyleId(styleId: UInt, state: DSDrawingItemState, centre: CGPoint, radius: CGFloat) -> ArcDrawingItem

Parameters

styleId: The drawing style ID of the ArcDrawingItem. If the style ID is 0, the ArcDrawingItem will use the default style.

state: The state of the ArcDrawingItem.

centre: The centre of the ArcDrawingItem.

radius: The radius of the ArcDrawingItem.

Return Value

An ArcDrawingItem object.

initWithCentre

Create an instance of ArcDrawingItem with centre and radius.

Objective-C
Swift

- (instancetype)initWithCentre:(CGPoint)centre radius:(CGFloat)radius;

func initWithCentre(centre: CGPoint, radius: CGFloat) -> ArcDrawingItem

Parameters

centre: The centre of the ArcDrawingItem.

radius: The radius of the ArcDrawingItem.

Return Value

An ArcDrawingItem object.

centre

Get the centre of the ArcDrawingItem.

Objective-C
Swift

@property (nonatomic, assign, readonly) CGPoint centre;

```
var centre: CGPoint { get }
```

radius

Objective-C
Swift

@property (nonatomic, assign, readonly) CGFloat radius;

```
var radius: CGFloat { get }
```