GetAffineTransformation

Calculate the affine transformation between three corresponding point pairs. The points mark the corners of the corresponding triangles.

Syntax

Definition:

HRESULT GetAffineTransformation(
    HRESULT                 hrPrev,
    TcVnArray3_Point2_REAL& aSrcPoints,
    TcVnArray3_Point2_REAL& aDestPoints,
    TcVnMatrix2x3_LREAL&    aTransformationMatrix
)

Parameters

Name

Type

Description

hrPrev

HRESULT

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

aSrcPoints

TcVnArray3_Point2_REAL&

Source points

aDestPoints

TcVnArray3_Point2_REAL&

Destination points

aTransformationMatrix

TcVnMatrix2x3_LREAL&

Resulting transformation matrix

GetAffineTransformation 1: 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