F_VN_WarpPerspective_Point

Apply a perspective transformation to a 2D point.

Syntax

Definition:

FUNCTION F_VN_WarpPerspective_Point : HRESULT
VAR_IN_OUT
    aSrcPoint             : TcVnPoint2_LREAL;
    aDestPoint            : TcVnPoint2_LREAL;
    aTransformationMatrix : TcVnMatrix3x3_LREAL;
END_VAR
VAR_INPUT
    hrPrev                : HRESULT;
END_VAR

Inputs

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

In/Outputs

Name	Type	Description
aSrcPoint	TcVnPoint2_LREAL	Source point
aDestPoint	TcVnPoint2_LREAL	Destination point
aTransformationMatrix	TcVnMatrix3x3_LREAL	Perspective transformation matrix

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