F_VN_ContourCircularityExp
Computes the circularity of a contour (1.0: ideal circle, 0.0: straight line). (expert function)
Syntax
Definition:
FUNCTION F_VN_ContourCircularityExp : HRESULT
VAR_INPUT
    ipContour    : ITcVnContainer;
END_VAR
VAR_IN_OUT
    fCircularity : LREAL;
END_VAR
VAR_INPUT
    eMethod      : ETcVnCircularityCalculationMethod;
    hrPrev       : HRESULT;
END_VARInputs
| Name | Type | Description | 
|---|---|---|
| ipContour | Single contour (ContainerType_Vector_TcVnPoint2_DINT or ContainerType_Vector_TcVnPoint2_REAL; The elements of this container are the points of the contour.) | |
| eMethod | Method used for computing the circularity | |
| hrPrev | HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.) | 
In/Outputs
| Name | Type | Description | 
|---|---|---|
| fCircularity | LREAL | Returns the circularity of the contour [0..1] | 
Required License
TC3 Vision Base