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. 4024.44 or later

PC or CX (x64) with PL50, e.g. Intel 4-core Atom CPU

Tc3_Vision