F_VN_PerspectiveTransformation

Apply a perspective transformation (rotation + translation, e.g. from extrinsic calibration) to 3D point coordinates.

Syntax

Definition:

FUNCTION F_VN_PerspectiveTransformation : HRESULT
VAR_INPUT
    ipSrcPoints        : ITcVnContainer;
    ipDestPoints       : Reference To  ITcVnContainer;
END_VAR
VAR_IN_OUT
    aRotationMatrix    : TcVnMatrix3x3_LREAL;
    aTranslationVector : TcVnVector3_LREAL;
END_VAR
VAR_INPUT
    hrPrev             : HRESULT;
END_VAR

Inputs

Name	Type	Description
ipSrcPoints	ITcVnContainer	Container with 3D source points (TcVnPoint3_REAL or TcVnPoint3_LREAL)
ipDestPoints	Reference To ITcVnContainer	Returns the transformed points (same type as ipSrcPoints)
hrPrev	HRESULT	HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.)

In/Outputs

Name	Type	Description
aRotationMatrix	TcVnMatrix3x3_LREAL	3x3 rotation matrix
aTranslationVector	TcVnVector3_LREAL	Translation vector

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