F_VN_ContourMoments

F_VN_ContourMoments 1:

Computes the spatial moments, the central moments, and the central normalized moments of a contour up to the third order.

Syntax

Definition:

FUNCTION F_VN_ContourMoments : HRESULT
VAR_INPUT
    ipContour : ITcVnContainer;
END_VAR
VAR_IN_OUT
    stMoments : TcVnMoments;
END_VAR
VAR_INPUT
    hrPrev    : HRESULT;
END_VAR

F_VN_ContourMoments 2: Inputs

Name

Type

Description

ipContour

ITcVnContainer

Single contour (ContainerType_Vector_TcVnPoint2_DINT or ContainerType_Vector_TcVnPoint2_REAL; The elements of this container are the points of the contour.)

hrPrev

HRESULT

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

F_VN_ContourMoments 3: In/Outputs

Name

Type

Description

stMoments

TcVnMoments

Returns a struct containing the moments

F_VN_ContourMoments 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