DSCandidateQuadEdgesUnit

The DSCandidateQuadEdgesUnit class represents an intermediate result unit whose type is candidate quad edges.

Definition

Assembly: DynamsoftDocumentNormalizer.xcframework

Objective-C
Swift

@interface DSCandidateQuadEdgesUnit: DSIntermediateResultUnit

class CandidateQuadEdgesUnit: IntermediateResultUnit

Methods

Methods	Description
`getCandidateQuadEdges`	Get an array of edges. It includes all edges that candidate quadrilaterals assembling.
`getCount`	Get the number of edges.
`getCandidateQuadEdge`	Get an edge.
`removeAllCandidateQuadEdges`	Remove all edges.
`removeCandidateQuadEdge`	Remove an edge.
`addCandidateQuadEdge`	Add an edge.
`setCandidateQuadEdge`	Set an edge.

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.

getCandidateQuadEdges

Get an array of edges. It includes all edges that candidate quadrilaterals assembling.

Objective-C
Swift

-(nullable NSArray<DSEdge *> *)getCandidateQuadEdges;

func getCandidateQuadEdges() -> [DSEdge]?

Return Value

Returns an array of edges.

getCount

Get the number of edges.

Objective-C
Swift

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

Return Value

Returns the number of edges.

getCandidateQuadEdge

Get the DSEdge object at the specified index.

Objective-C
Swift

-(nullable DSEdge *)getCandidateQuadEdge:(NSInteger)index;

func getCandidateQuadEdge(_ index: Int) -> DSEdge?

Parameters

[in] index: The index of the edge.

Return Value

Returns the DSEdge object as the specified edge.

removeAllCandidateQuadEdges

Remove all edges.

Objective-C
Swift

```
-(void)removeAllCandidateQuadEdges;
```
```
func removeAllCandidateQuadEdges()
```

removeCandidateQuadEdge

Remove the DSEdge object at the specified index.

Objective-C
Swift

-(NSInteger)removeCandidateQuadEdge:(NSInteger)index;

func removeCandidateQuadEdge(_ index: Int) -> NSInteger

Parameters

[in] index: The index of the edge.

Return Value

Returns the ErrorCode if failed. Otherwise, returns 0.

addCandidateQuadEdge

Add an edge.

Objective-C
Swift

-(NSInteger)addCandidateQuadEdge:(DSEdge *)edge
       matrixToOriginalImage:(CGAffineTransform)matrixToOriginalImage;

func addCandidateQuadEdge(_ edge: DSEdge, matrixToOriginalImage: CGAffineTransform) -> NSInteger

Parameters

[in] edge: The edge to be added.

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

Return Value

Returns the ErrorCode if failed. Otherwise, returns 0.

setCandidateQuadEdge

Set the DSEdge object at the specified index.

Objective-C
Swift

-(NSInteger)setCandidateQuadEdge:(NSInteger)index 
                        edge:(DSEdge *)edge
       matrixToOriginalImage:(CGAffineTransform)matrixToOriginalImage;

func setCandidateQuadEdge(_ index: Int, edge: DSEdge, matrixToOriginalImage: CGAffineTransform) -> NSInteger

Parameters

[in] index: The index of the edge.

[in] edge: The edge to be set.

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

Return Value

Returns the ErrorCode if failed. Otherwise, returns 0.