F_VN_ClipLineToBoundary_ITcVnImage
Clips a line to the boundary of an image.
Syntax
Definition:
FUNCTION F_VN_ClipLineToBoundary_ITcVnImage : HRESULT
VAR_IN_OUT
aLine : TcVnVector4_LREAL;
END_VAR
VAR_INPUT
ipImage : ITcVnImage;
END_VAR
VAR_IN_OUT
aStartPoint : TcVnPoint2_REAL;
aEndPoint : TcVnPoint2_REAL;
END_VAR
VAR_INPUT
hrPrev : HRESULT;
END_VAR
Inputs
|
Name |
Type |
Description |
|---|---|---|
|
ipImage |
Image, from which to derive the boundary | |
|
hrPrev |
HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.) |
In/Outputs
|
Name |
Type |
Description |
|---|---|---|
|
aLine |
The first and second element describe the x and y component of the direction vector. The third and fourth element describe the x and y component of the position vector. | |
|
aStartPoint |
Returns the clipped starting point of the line. | |
|
aEndPoint |
Returns the clipped end point of the line. |
Return valueFurther information
This function adjusts a line to a specified area.
Different functions exist for various definition forms in this area:
Definition of the rectangular area | Function to be used |
|---|---|
Specified by individual X/Y coordinates | |
By the size of an image | |
By a rectangular structure |
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 |