Back to Aurora Vision Studio website
	
                
                    
	
		
	You are here: Start » Filter Reference » OpenCV » Structural Analysis and Shape Descriptors » cvArcLength
| Module: | OpenCV | 
|---|
Calculates a contour perimeter or a curve length.
| Name | Type | Description | |
|---|---|---|---|
![]()  | 
				inCurve | Path | Input curve. | 
![]()  | 
				inClosed | Bool | Flag indication whether the curve is closed or not. | 
![]()  | 
				outLength | Real | Length of curve. | 
Errors
This filter can throw an exception to report error. Read how to deal with errors in Error Handling.
List of possible exceptions:
| Error type | Description | 
|---|---|
| DomainError | Input curve must not be empty in cvArcLength. | 
Complexity Level
This filter is available on Basic Complexity Level.

 Basic
