F_VN_DrawLinesExp

Syntax

Definition:

FUNCTION F_VN_DrawLinesExp : HRESULT
VAR_INPUT
    ipLines     : ITcVnContainer;
    nLineIndex  : DINT;
    ipDestImage : ITcVnImage;
END_VAR
VAR_IN_OUT
    aColor      : TcVnVector4_LREAL;
END_VAR
VAR_INPUT
    nThickness  : DINT;
    eLineType   : ETcVnLineType;
    nShift      : UDINT;
    hrPrev      : HRESULT;
END_VAR

Inputs

Name	Type	Description
ipLines	ITcVnContainer	Container with line descriptions (ContainerType_Vector_TcVnVector2_REAL: the distance from the origin [0] in pixels and the rotation angle [1] in radians. ContainerType_Vector_TcVnVector4_LREAL: the first and second element describe the x and y component of a vector collinear to the line. The third and fourth element describe the x and y component of a point on the line. ContainerType_Vector_TcVnVector4_DINT: start and end point [x1, y1, x2, y2])
nLineIndex	DINT	Index of a specific line to be drawn (if negative, all lines within the container are drawn)
ipDestImage	ITcVnImage	Destination image
nThickness	DINT	Line thickness
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.)

In/Outputs

Name	Type	Description
aColor	TcVnVector4_LREAL	Color

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