F_VN_UprightInnerRectangle

F_VN_UprightInnerRectangle 1:

Computes the maximum area upright inner rectangle inside an area. If the valid area contains very small invalid areas or the performance is too slow, use the expert variant of this function and manually choose a suitable nDownScaleFactor.
Can use available TwinCAT Job Tasks for executing parallel code regions.
Can return partial results when canceled by Watchdog.

Syntax

Definition:

FUNCTION F_VN_UprightInnerRectangle : HRESULT
VAR_INPUT
    ipSrcImage  : ITcVnImage;
END_VAR
VAR_IN_OUT
    stRectangle : TcVnRectangle_DINT;
END_VAR
VAR_INPUT
    hrPrev      : HRESULT;
END_VAR

 Inputs

Name

Type

Description

ipSrcImage

ITcVnImage

Source image (USINT, 1 channel, binary, values > 0 mark valid area)

hrPrev

HRESULT

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

 In/Outputs

Name

Type

Description

stRectangle

TcVnRectangle_DINT

Returns the maximum area upright inner rectangle

 Return value

HRESULT

Required License

TC3 Vision Base

System Requirements

Development environment

Target platform

PLC libraries to include

TwinCAT V3.1.4024.59 or later

PC or CX (x64) with PL50, e.g. Intel 4-core Atom CPU

Tc3_Vision