CheckIfPointIsInsideContour

Checks if a point is inside a contour (and optionally return the distance to it).

Syntax

Definition:

HRESULT CheckIfPointIsInsideContour(
    HRESULT          hrPrev,
    ITcVnContainer*  ipContour,
    TcVnPoint2_REAL& aPoint,
    double&          fDist,
    bool             bMeasureDistance
)

Parameters

Name	Type	Description
hrPrev	HRESULT	HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.)
ipContour	ITcVnContainer*	Single contour (ContainerType_Vector_TcVnPoint2_DINT or ContainerType_Vector_TcVnPoint2_REAL)
aPoint	TcVnPoint2_REAL&	Point position to check
fDist	double&	Returns the result (> 0: the point is inside the contour; 0: the point is on the contour; < 0: the point is outside the contour)
bMeasureDistance	bool	If true, fDist returns the distance to the nearest contour edge. Otherwise, fDist only returns -1, 0 or +1 (recommended to set to false if the distance is not required, as this is faster).

Return value

HRESULT

Required License

TC3 Vision Base

System Requirements

Development environment	Target platform	PLC libraries to include
TwinCAT V3.1.4024.54 or later	PC or CX (x64) with PL50, e.g. Intel 4-core Atom CPU	Tc3_Vision