F_VN_PlotIntensityProfileExp

F_VN_PlotIntensityProfileExp 1:

Plots the pixel intensity profile along a line segment in an image. (expert function)

Syntax

Definition:

FUNCTION F_VN_PlotIntensityProfileExp : HRESULT
VAR_INPUT
    ipSrcImage       : ITcVnImage;
    ipDestImage      : Reference To ITcVnImage;
END_VAR
VAR_IN_OUT
    aStartPoint      : TcVnPoint2_REAL;
    aEndPoint        : TcVnPoint2_REAL;
    aBackgroundColor : TcVnVector4_LREAL;
    aLineColor       : TcVnVector4_LREAL;
    aGridColor       : TcVnVector4_LREAL;
END_VAR
VAR_INPUT
    nScaleX          : DINT;
    nScaleY          : DINT;
    nThickness       : DINT;
    nDestChannels    : DINT;
    hrPrev           : HRESULT;
END_VAR

F_VN_PlotIntensityProfileExp 2: Inputs

Name

Type

Description

ipSrcImage

ITcVnImage

Source image (USINT, 1 channel)

ipDestImage

Reference To ITcVnImage

Destination image (USINT, 1 channel. x: position, y: intensity, origin: bottom left. An appropriate destination image will be created if required.)

nScaleX

DINT

Scale in x direction (ipDestImage will have a width of nScaleX * (ipSrcImage width - 1) + 1)

nScaleY

DINT

Scale in y direction (ipDestImage will have a height of nScaleY * 255 + 1)

nThickness

DINT

Line thickness

nDestChannels

DINT

ipDestImage channels (1 or 3)

hrPrev

HRESULT

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

F_VN_PlotIntensityProfileExp 3: In/Outputs

Name

Type

Description

aStartPoint

TcVnPoint2_REAL

Start point of the line segment

aEndPoint

TcVnPoint2_REAL

End point of the line segment

aBackgroundColor

TcVnVector4_LREAL

Background color

aLineColor

TcVnVector4_LREAL

Line color

aGridColor

TcVnVector4_LREAL

Grid color

F_VN_PlotIntensityProfileExp 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