F_VN_DrawOrientationExp

Draw the main axis, the horizontal axis and the angle of a set of points/contour based on a rotated rectangle. (expert function)

Syntax

Definition:

FUNCTION F_VN_DrawOrientationExp : HRESULT
VAR_IN_OUT
    stOrientation        : TcVnRotatedRectangle;
END_VAR
VAR_INPUT
    ipDestImage          : ITcVnImage;
END_VAR
VAR_IN_OUT
    aColorMainAxis       : TcVnVector4_LREAL;
END_VAR
VAR_INPUT
    nThickness           : DINT;
END_VAR
VAR_IN_OUT
    aColorHorizontalAxis : TcVnVector4_LREAL;
END_VAR
VAR_INPUT
    fFontScale           : LREAL;
    hrPrev               : HRESULT;
END_VAR

Inputs

Name	Type	Description
ipDestImage	ITcVnImage	Destination image
nThickness	DINT	Line thickness
fFontScale	LREAL	Scaling factor for the text
hrPrev	HRESULT	HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.)

In/Outputs

Name	Type	Description
stOrientation	TcVnRotatedRectangle	Rotated rectangle, containig center of mass, lenghts of axes, and rotation angle in clockwise direction
aColorMainAxis	TcVnVector4_LREAL	Color of the major axis
aColorHorizontalAxis	TcVnVector4_LREAL	Color of the horizontal axis

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