F_VN_DrawCircle

F_VN_DrawCircle 1:

Draws a circle.

Syntax

Definition:

FUNCTION F_VN_DrawCircle : HRESULT
VAR_INPUT
    nCenterX    : UDINT;
    nCenterY    : UDINT;
    nRadius     : UDINT;
    ipDestImage : ITcVnImage;
END_VAR
VAR_IN_OUT
    aColor      : TcVnVector4_LREAL;
END_VAR
VAR_INPUT
    nThickness  : DINT;
    hrPrev      : HRESULT;
END_VAR

F_VN_DrawCircle 2: Inputs

Name

Type

Description

nCenterX

UDINT

x coordinate of the center

nCenterY

UDINT

y coordinate of the center

nRadius

UDINT

Radius

ipDestImage

ITcVnImage

Destination image

nThickness

DINT

Line thickness (if negative, the circle is filled)

hrPrev

HRESULT

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

F_VN_DrawCircle 3: In/Outputs

Name

Type

Description

aColor

TcVnVector4_LREAL

Color

F_VN_DrawCircle 4: 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