F_VN_LineIntersectionPoint

Computes the intersection point between two lines (returns S_FALSE if the provided lines are parallel).

Syntax

Definition:

FUNCTION F_VN_LineIntersectionPoint : HRESULT
VAR_IN_OUT
    aLine1         : TcVnVector4_LREAL;
    aLine2         : TcVnVector4_LREAL;
    aIntersecPoint : TcVnPoint2_REAL;
END_VAR
VAR_INPUT
    hrPrev         : HRESULT;
END_VAR

Inputs

Name	Type	Description
hrPrev	HRESULT	HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.)

In/Outputs

Name	Type	Description
aLine1	TcVnVector4_LREAL	First line. The first and second element describe the x and y component of a vector collinear to the line. The third and fourth element describe the x and y component of a point on the line.
aLine2	TcVnVector4_LREAL	Second line. The first and second element describe the x and y component of a vector collinear to the line. The third and fourth element describe the x and y component of a point on the line.
aIntersecPoint	TcVnPoint2_REAL	Returns the intersection point of aLine1 and aLine2.

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