F_VN_FitEllipse

F_VN_FitEllipse 1:

Fit an ellipse in a point set.

Syntax

Definition:

FUNCTION F_VN_FitEllipse : HRESULT
VAR_INPUT
    ipPointSet : ITcVnContainer;
END_VAR
VAR_IN_OUT
    stEllipse  : TcVnRotatedRectangle;
END_VAR
VAR_INPUT
    hrPrev     : HRESULT;
END_VAR

F_VN_FitEllipse 2: Inputs

Name

Type

Description

ipPointSet

ITcVnContainer

Source point set (ContainerType_Vector_TcVnPoint2_DINT or ContainerType_Vector_TcVnPoint2_REAL; At least 5 reasonable points are required! 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.)

F_VN_FitEllipse 3: In/Outputs

Name

Type

Description

stEllipse

TcVnRotatedRectangle

Resulting ellipse, described by a rotated rectangle.

F_VN_FitEllipse 4: 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