CogPMRedLineZoneScale.Overlap Property

CogPMRedLineZoneScale Overlap Property

Cognex VisionPro 9.22

Gets or sets the overlap threshold for the scale degree of freedom zone.

Namespace: Cognex.VisionPro.PMRedLine
Assembly: Cognex.VisionPro.PMRedLine (in Cognex.VisionPro.PMRedLine.dll) Version: 87.0.0.0

Syntax

C++

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public double Overlap { get; set; }

public double Overlap { get; set; }

Public Property Overlap As Double 
	Get 
	Set

Public Property Overlap As Double 
	Get 
	Set

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

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

Property Value

Type: Double
The scale overlap threshold. Default value is 1.4.

Events

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

Exceptions

Exception	Condition
ArgumentOutOfRangeException	The supplied value is less than one.

Remarks

Two result candidates are said to overlap in the scale degree of freedom if the ratio of their scales is less than or equal to the given Overlap threshold. To compute the ratio PMRedLine always divides the larger scale by the smaller one, yielding a value that is greater than or equal to one. For example, given a result with scale of 1.25 and a result with a scale of 2.5, the ratio would be 2.0. These two results would only overlap in the scale degree of freedom if the Overlap value was set to 2.0 or higher.

PMRedLine discards the weaker pattern instance when two pattern instances overlap for all degrees of freedom (DOF) as well as area. See the Overlap property of the angle DOF zone, and the XYOverlap property of the CogPMRedLineRunParams class for more information.