DSCornersUnit

The DSCornersUnit class represents an intermediate result unit whose type is corners.

Definition

Assembly: DynamsoftCaptureVisionBundle.xcframework

Objective-C
Swift

@interface DSCornersUnit : DSIntermediateResultUnit

class CornersUnit : IntermediateResultUnit

Methods

Methods	Description
`getCorners`	Get an array of corners. It includes all corners that participate quadrilaterals assembling.
`getCount`	Get the number of corners.
`getCorner`	Get a corner.
`removeAllCorners`	Remove all corners.
`removeCorner`	Remove a corner.
`addCorner`	Add a corner.
`setCorner`	Set a corner.

The following methods are inherited from class DSIntermediateResultUnit.

Method	Description
`getHashId`	Returns the hash ID of the unit.
`getOriginalImageHashId`	Returns the hash ID of the original image.
`getOriginalImageTag`	Returns the image tag of the original image.
`getType`	Returns the type of the intermediate result unit.
`getTransformMatrix`	Returns the transformation matrix via `DSTransformMatrixType`.
`clone`	Creates a copy of the intermediate result unit.
`replace`	Replaces the content of the intermediate result unit.

getCorners

Get an array of DSCorner that represent all the assembled corners. The corners will participate assembling.

Objective-C
Swift

-(nullable NSArray<DSCorner*>*)getCorners;

```
func getCorners() -> [Corner]?
```

Return Value

An array of DSCorner as the assembled corners.

getCount

Get the number of corners.

Objective-C
Swift

```
-(NSInteger)getCount;
```
```
func getCount() -> Int
```

Return Value

The number of corners.

getCorner

Get the corner at the specified index.

Objective-C
Swift

-(nullable DSCorner*)getCorner:(NSInteger)index;

func getCorner(_ index: Int) -> Corner?

Parameters

[in] index: The index of the corner.

Return Value

The corner at the specified index.

removeAllCorners

Remove all corners.

Objective-C
Swift

```
-(void)removeAllCorners;
```
```
func removeAllCorners()
```

removeCorner

Remove the corner at the specified index.

Objective-C
Swift

-(NSInteger)removeCorner:(NSInteger)index;

```
func removeCorner(_ index: Int) -> Int
```

Parameters

[in] index: The index of the corner to be removed.

Return Value

The index of the removed corner.

addCorner

Add a corner.

Objective-C
Swift

-(NSInteger)addCorner:(DSCorner*)corner
matrixToOriginalImage:(CGAffineTransform)matrixToOriginalImage;

func addCorner(_ corner: Corner, matrixToOriginalImage: CGAffineTransform) -> Int

Parameters

[in] corner: The corner to be added.

[in] matrixToOriginalImage: The matrix to the original image.

Return Value

Returns the ErrorCode if failed. Otherwise, returns 0.

setCorner

Set the corner at the specified index.

Objective-C
Swift

-(NSInteger)setCorner:(NSInteger)index
           corner:(DSCorner*)corner
matrixToOriginalImage:(CGAffineTransform)matrixToOriginalImage;

func setCorner(_ index: Int, corner: Corner, matrixToOriginalImage: CGAffineTransform) -> Int

Parameters

[in] index: The index of the corner to be set.

[in] corner: The corner to be set.

[in] matrixToOriginalImage: The matrix to the original image.

Return Value

Returns the ErrorCode if failed. Otherwise, returns 0.