F_VN_DrawComponents

F_VN_DrawComponents 1:

Draw the results of connected component function.
Can use available TwinCAT Job Tasks for executing parallel code regions.

Syntax

Definition:

FUNCTION F_VN_DrawComponents : HRESULT
VAR_INPUT
    ipLabelImage : ITcVnImage;
    nLabelID     : DINT;
    ipDestImage  : Reference To ITcVnImage;
    bShowLabelID : BOOL;
    hrPrev       : HRESULT;
END_VAR

F_VN_DrawComponents 2: Inputs

Name

Type

Description

ipLabelImage

ITcVnImage

Image contains labels for each pixel (1 channel DINT or UINT).

nLabelID

DINT

Value of a specific label to be drawn (if negative, all components within the image are drawn)

ipDestImage

Reference To ITcVnImage

Destination image (An appropriate image will be created if required. The output image is 1 or 3 channels USINT).

bShowLabelID

BOOL

Show label ID in the center of the component on the destination image

hrPrev

HRESULT

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

F_VN_DrawComponents 3: 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