GetPerspectiveTransformation

Calculate the perspective transformation between four corresponding point pairs. The points mark the corners of the corresponding rectangles.

Syntax

Definition:

HRESULT GetPerspectiveTransformation(
    HRESULT                 hrPrev,
    TcVnArray4_Point2_REAL& aSrcPoints,
    TcVnArray4_Point2_REAL& aDestPoints,
    TcVnMatrix3x3_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

TcVnArray4_Point2_REAL&

Source points

aDestPoints

TcVnArray4_Point2_REAL&

Destination points

aTransformationMatrix

TcVnMatrix3x3_LREAL&

Resulting transformation matrix

GetPerspectiveTransformation 1: 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