CogBeadInspectRunParams.AbsoluteDistanceThreshold Property

CogBeadInspectRunParams AbsoluteDistanceThreshold Property

Cognex VisionPro 9.7

Gets or sets the maximum absolute amount an edge position can deviate from a trained edge position. It is specified as a fraction of the average bead width.

Namespace: Cognex.VisionPro.EdgeInspect
Assembly: Cognex.VisionPro.EdgeInspect (in Cognex.VisionPro.EdgeInspect.dll) Version: 73.0.0.0

Syntax

C++

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public double AbsoluteDistanceThreshold { get; set; }

public double AbsoluteDistanceThreshold { get; set; }

Public Property AbsoluteDistanceThreshold As Double 
	Get 
	Set

Public Property AbsoluteDistanceThreshold As Double 
	Get 
	Set

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

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

Property Value

Type: Double
Default value is 0.5 (half the bead width).

Events

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

Exceptions

Exception	Condition
ArgumentOutOfRangeException	The supplied value is less than or equal to 0 or greater than 2.

Remarks

This property only supports float value type precision; up to 5 decimal places (such as 0.00001) can typically be expected to be maintained. Further precision can be assigned but will be lost (truncated).

The average bead width is computed at train time. It averages the bead width from a number of calipers. The number of calipers is specified by the SmoothingFactor train property.

A low value for this tolerance means that both edges of the bead must appear very close to where they were in the training image. A high value means that both edges can drift considerably from their trained location.