F_VN_DrawPolygonExp

F_VN_DrawPolygonExp 1:

Draw a pologon using collection of points. (expert function)

Syntax

Definition:

FUNCTION F_VN_DrawPolygonExp : HRESULT
VAR_INPUT
    ipPoints    : ITcVnContainer;
    ipDestImage : ITcVnImage;
END_VAR
VAR_IN_OUT
    aColor      : TcVnVector4_LREAL;
END_VAR
VAR_INPUT
    nThickness  : DINT;
    bIsClosed   : BOOL;
    eLineType   : ETcVnLineType;
    nShift      : UDINT;
    hrPrev      : HRESULT;
END_VAR

F_VN_DrawPolygonExp 2: Inputs

Name

Type

Description

ipPoints

ITcVnContainer

Container with TcVnPoint2_DINT, TcVnPoint2_REAL, or TcVnPoint2_LREAL elements

ipDestImage

ITcVnImage

Destination image

nThickness

DINT

Line thickness (if negative, the shape is filled)

bIsClosed

BOOL

If it is true, the function draws a line from the last point to the first point to close the polygon.

eLineType

ETcVnLineType

Line type

nShift

UDINT

Fractional bits of the coordinates (bit shift)

hrPrev

HRESULT

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

F_VN_DrawPolygonExp 3: In/Outputs

Name

Type

Description

aColor

TcVnVector4_LREAL

Color

F_VN_DrawPolygonExp 4: 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