ConvexityDefects

Finds the convexity defects of a point set.

Syntax

Definition:

HRESULT ConvexityDefects(
    HRESULT          hrPrev,
    ITcVnContainer*  ipContour,
    ITcVnContainer*& ipConvexityDefects
)

Parameters

Name

Type

Description

hrPrev

HRESULT

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

ipContour

ITcVnContainer*

Source contour (ContainerType_Vector_TcVnPoint2_DINT; The elements of this container are the individual points.)

ipConvexityDefects

ITcVnContainer*&

Returns a container which is filled with the convexity defects (ContainerType_Vector_TcVnVector4_DINT with [startIndex, endIndex, furthestPointIndex, fixedPointDistance (8 fraction bits, i.e. divide by 256 to get the distance in pixels)]; Non-zero interface pointers are reused.)

ConvexityDefects 1: Return value

HRESULT

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