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 indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.) | |
|
ipPoints |
|
Container with TcVnPoint2_DINT, TcVnPoint2_REAL, or TcVnPoint2_LREAL elements | |
|
ipDestImage |
|
Destination image | |
|
aColor |
|
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 |
LT_8_CONNECTED |
Line type | |
|
nShift |
ULONG |
0 |
Fractional bits of the coordinates (bit shift) |
Return valueRequired 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 |