F_VN_EnclosingTriangle

Searches for a minimum area triangle enclosing a set of points.

Syntax

Definition:

FUNCTION F_VN_EnclosingTriangle : HRESULT
VAR_INPUT
    ipPointSet        : ITcVnContainer;
END_VAR
VAR_IN_OUT
    aTriangleVertices : TcVnArray3_Point2_REAL;
END_VAR
VAR_INPUT
    hrPrev            : HRESULT;
END_VAR
VAR_OUTPUT
    fArea             : LREAL;
END_VAR

Inputs

Name	Type	Description
ipPointSet	ITcVnContainer	Source point set (ContainerType_Vector_TcVnPoint2_DINT or ContainerType_Vector_TcVnPoint2_REAL; The elements of this container are the individual points.)
hrPrev	HRESULT	HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.)

In/Outputs

Name	Type	Description
aTriangleVertices	TcVnArray3_Point2_REAL	Returns the 3 triangle vertices

Outputs

Name	Type	Description
fArea	LREAL	Returns the triangle area

Return value

HRESULT

Required License

TC3 Vision Base

System Requirements

Development environment	Target platform	PLC libraries to include
TwinCAT V3.1. 4024.44 or later	PC or CX (x64) with PL50, e.g. Intel 4-core Atom CPU	Tc3_Vision