DSLongLinesUnit

The DSLongLinesUnit class represents an intermediate result unit whose type is long lines. Line segments that are located in the same line are extended and merged to form a long line.

Definition

Assembly: DynamsoftDocumentNormalizer.xcframework

Objective-C
Swift

@interface DSLongLinesUnit: DSIntermediateResultUnit

class LongLinesUnit: IntermediateResultUnit

Methods

Methods	Description
`getLongLines`	Get an array of `DSLineSegment` as the long lines.
`getCount`	Get the number of long lines.
`getLongLine`	Get a long line.
`removeAllLongLines`	Remove all long lines.
`removeLongLine`	Remove a long line.
`addLongLine`	Add a long line.
`setLongLine`	Set a long line.

getLongLines

Get an array of DSLineSegment as the long lines.

Objective-C
Swift

-(nullable NSArray<DSLineSegment*>*)getLongLines;

```
func getLongLines() -> [LineSegment]?
```

Return Value

The array of DSLineSegment as the long lines.

getCount

Get the number of long lines.

Objective-C
Swift

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

Return Value

The number of long lines.

getLongLine

Get the long line at the specified index.

Objective-C
Swift

-(nullable DSLineSegment*)getLongLine:(NSInteger)index;

func getLongLine(_ index: Int) -> LineSegment?

Parameters

[in] index: The index of the long line.

Return Value

A DSLineSegment object as the long line at the specified index.

removeAllLongLines

Remove all long lines.

Objective-C
Swift

```
-(void)removeAllLongLines;
```
```
func removeAllLongLines()
```

removeLongLine

Remove the long line at the specified index.

Objective-C
Swift

-(NSInteger)removeLongLine:(NSInteger)index;

func removeLongLine(_ index: Int) -> Int

Parameters

The index of the long line to be removed.

Return Value

Returns the ErrorCode if failed. Otherwise, returns 0.

addLongLine

Add a long line.

Objective-C
Swift

-(NSInteger)addLongLine:(DSLineSegment*)line
  matrixToOriginalImage:(CGAffineTransform)matrixToOriginalImage;

func addLongLine(_ line: LineSegment, matrixToOriginalImage: CGAffineTransform) -> Int

Parameters

[in] line: The long line to be added.

[in] matrixToOriginalImage: The transformation matrix of the original image.

Return Value

Returns the ErrorCode if failed. Otherwise, returns 0.

setLongLine

Set the long line at the specified index.

Objective-C
Swift

-(NSInteger)setLongLine:(NSInteger)index
               line:(DSLineSegment*)line
  matrixToOriginalImage:(CGAffineTransform)matrixToOriginalImage;

func setLongLine(_ index: Int, line: LineSegment, matrixToOriginalImage: CGAffineTransform) -> Int

Parameters

[in] index: The index of the long line.

[in] line: The long line to be set.

[in] matrixToOriginalImage: The transformation matrix of the original image.

Return Value

Returns the ErrorCode if failed. Otherwise, returns 0.