DrawPolygon

Draw a pologon using collection of points.

Syntax

Definition:

HRESULT DrawPolygon(
    HRESULT            hrPrev,
    ITcVnContainer*    ipPoints,
    ITcVnImage*        ipDestImage,
    TcVnVector4_LREAL& aColor,
    LONG               nThickness,
    bool               bIsClosed = true,
    ETcVnLineType      eLineType = LT_8_CONNECTED,
    ULONG              nShift = 0
)

Parameters

Name

Type

Default

Description

hrPrev

HRESULT

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

ipPoints

ITcVnContainer*

Container with TcVnPoint2_DINT, TcVnPoint2_REAL, or TcVnPoint2_LREAL elements

ipDestImage

ITcVnImage*

Destination image

aColor

TcVnVector4_LREAL&

Color

nThickness

LONG

Line thickness (if negative, the shape is filled)

bIsClosed

bool

true

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

eLineType

ETcVnLineType

LT_8_CONNECTED

Line type

nShift

ULONG

0

Fractional bits of the coordinates (bit shift)

DrawPolygon 1: Return value

HRESULT

Required License

TC3 Vision Base

System Requirements