F_VN_ContourRoundness
Computes the roundness of a contour (perimeter^2 / area).
Syntax
Definition:
FUNCTION F_VN_ContourRoundness : HRESULT
VAR_INPUT
ipContour : ITcVnContainer;
END_VAR
VAR_IN_OUT
fRoundness : LREAL;
END_VAR
VAR_INPUT
hrPrev : HRESULT;
END_VAR
Inputs
|
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.) | |
|
hrPrev |
HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.) |
In/Outputs
|
Name |
Type |
Description |
|---|---|---|
|
fRoundness |
LREAL |
Returns the roundness of the contour |
Return valueRequired License
TC3 Vision Base