DSContoursUnit

The DSContoursUnit class extends the DSIntermediateResultUnit class and represents a unit of contours, which are collections of points that define the shape of an object in an image.

Definition

Assembly: DynamsoftCore.framework

• Objective-C
• Swift

1. @interface DSContoursUnit: DSIntermediateResultUnit
   

2. class ContoursUnit: IntermediateResultUnit
   

Methods

Method	Description
getContours	Gets the array of DSContour objects.
getHierarchies	Gets the array of DSVector4 objects.
setContours	Sets the contours.

Inherited Methods

The following methods are inherited from class IntermediateResultUnit.

Method	Description
getHashId	Gets the hash ID of the unit. The hash ID is the unique identifier for the intermediate result unit.
getOriginalImageHashId	Gets the hash ID of the original image associated with this unit.
getOriginalImageTag	Gets the tag associated with the original image.
getType	Gets the type of the intermediate result unit, defined by the enumeration IntermediateResultUnitType.
getTransformMatrix	Gets the transformation matrix via DSTransformMatrixType.
clone	Creates a copy of the intermediate result unit.
replace	Replaces the content of the intermediate result unit.

getContours

Get an array of DSContour objects.

• Objective-C
• Swift

1. -(nullable NSArray<DSContour*>*)getContours;
   

2. func getContours() -> [Contour]?
   

Return Value

An array of DSContour objects.

setContours

Sets the contours.

• Objective-C
• Swift

1. -(NSInteger)setContours:(NSArray<DSContour*>*)contours
           hierarchies:(NSArray<Vector4*>*)hierarchies
     matrixToOriginalImage:(CGAffineTransform)matrixToOriginalImage;
   

2. func setContours(_ contours: [Contour]?, hierarchies: [Vector4]?, matrixToOriginalImage: CGAffineTransform) -> Int
   

Parameters

contours: An array of DSContour objects.

hierarchies: The contour hierarchies as an array of DSVector4 objects.

matrixToOriginalImage: The matrix to original image.

Return Value

Returns the ErrorCode if failed. Otherwise, returns 0.

getHierarchies

Gets the array of DSVector4 objects.

• Objective-C
• Swift

1. -(nullable NSArray<DSVector4*>*)getHierarchies;
   

2. func getHierarchies() -> [Vector4]?
   

Return Value

The contour hierarchies as an array of DSVector4 objects.