CogPolygon.AddVertex Method

CogPolygon AddVertex Method

Cognex VisionPro 9.8 SR1

Add a vertex to the polygon. If the default index -1 is used, the new vertex will be added to the end of any existing vertices. Otherwise Index must be >= 0 and <= NumVertices.

Namespace: Cognex.VisionPro
Assembly: Cognex.VisionPro.Core (in Cognex.VisionPro.Core.dll) Version: 75.0.0.0

Syntax

C++

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public void AddVertex(
	double x,
	double y,
	int index
)

public void AddVertex(
	double x,
	double y,
	int index
)

Public Sub AddVertex ( 
	x As Double,
	y As Double,
	index As Integer
)

Public Sub AddVertex ( 
	x As Double,
	y As Double,
	index As Integer
)

public:
void AddVertex(
	double x, 
	double y, 
	int index
)

public:
void AddVertex(
	double x, 
	double y, 
	int index
)

Parameters

x: Type: System Double
X-coordinate of the vertex.

y: Type: System Double
Y-coordinate of the vertex.

index: Type: System Int32
Index of the vertex.

Events

Event Type	Reason
CogPolygon Changed	Fires when a vertex is added. The following state flags may be affected:

Event Type

Reason

CogPolygon Changed

Fires when a vertex is added.

The following state flags may be affected:

Exceptions

Exception	Condition
ArgumentException	index < −1
ArgumentException	index > NumVertices
OUTOFMEMORYException	The memory to store the vertices cannot be allocated.

Remarks

Add a vertex to the polygon at the given index. If index is −1 or NumVertices, the vertex is added to the end.