ConvexHullPoints

Determines the convex hull of a point set.

Syntax

Definition:

HRESULT ConvexHullPoints(
    HRESULT          hrPrev,
    ITcVnContainer*  ipPointSet,
    ITcVnContainer*& ipConvexHull,
    bool             bClockwise = false
)

Parameters

Name

Type

Default

Description

hrPrev

HRESULT

 

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

ipPointSet

ITcVnContainer*

 

Source point set (ContainerType_Vector_TcVnPoint2_DINT or ContainerType_Vector_TcVnPoint2_REAL; The elements of this container are the individual points.)

ipConvexHull

ITcVnContainer*&

 

Returns a container which is filled with the sorted convex hull points (same type ID as ipPointSet; Non-zero interface pointers are reused.)

bClockwise

bool

false

Selects the sorting direction of the hull points, assuming cartesian coordinates.

ConvexHullPoints 1: Return value

HRESULT

Required 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