CogShapeExtract.ApproximationTolerance Property

CogShapeExtract ApproximationTolerance Property

Cognex VisionPro 9.8 SR1

Specifies an upper bound on the deviation of the raw edge data from the approximating shape. Specified in selected space units of the input image. Higher tolerances result in larger approximations, but tend to produce simpler shape representations.

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

Syntax

C++

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public double ApproximationTolerance { get; set; }

public double ApproximationTolerance { get; set; }

Public Property ApproximationTolerance As Double 
	Get 
	Set

Public Property ApproximationTolerance As Double 
	Get 
	Set

public:
property double ApproximationTolerance {
	double get ();
	void set (double value);
}

public:
property double ApproximationTolerance {
	double get ();
	void set (double value);
}

Property Value

Type: Double

Events

Event Type	Reason
CogShapeExtract Changed	Fires when this property changes. The following state flag may be affected:

Event Type

Reason

CogShapeExtract Changed

Fires when this property changes.

The following state flag may be affected:

Exceptions

Exception	Condition
ArgumentException	The supplied value is less than or equal to 0.

Remarks

Specifies an upper bound on the deviation of the raw edge data from the approximating shape. Specified in selected space units of the input image supplied to Execute(CogImage8Grey, ICogRegion). Higher tolerances result in less accurate but generally simpler shape representations.

Default Value: 0.7