F_VN_PointToPointDirection_TcVnPoint2_REAL

Computes the direction vector between 2 points.

Syntax

Definition:

FUNCTION F_VN_PointToPointDirection_TcVnPoint2_REAL : HRESULT
VAR_IN_OUT
    aPoint1    : TcVnPoint2_REAL;
    aPoint2    : TcVnPoint2_REAL;
    aDirection : TcVnVector2_REAL;
END_VAR
VAR_INPUT
    bNormalize : BOOL;
    hrPrev     : HRESULT;
END_VAR

Inputs

Name	Type	Description
bNormalize	BOOL	If true, aDirection length is normalized to 1, otherwise aDirection length is the distance between aPoint1 and aPoint2
hrPrev	HRESULT	HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.)

In/Outputs

Name	Type	Description
aPoint1	TcVnPoint2_REAL	Point 1
aPoint2	TcVnPoint2_REAL	Point 2
aDirection	TcVnVector2_REAL	Returns the direction vector from aPoint1 to aPoint2

Return value

HRESULT

Required License

TC3 Vision Base

System Requirements

Development environment	Target platform	PLC libraries to include
TwinCAT V3.1.4024.59 or later	PC or CX (x64) with min. PL50, e.g. Intel 4-core Atom CPU	Tc3_Vision