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Automation Reference
MediaCy.IQL.Operators
RegionsOperators Class
RegionsOperators Methods
maRgnCalipers Method
maRgnCentroidXY Method
maRgnDiameters Method
maRgnFourierDescriptor Method
maRgnRadii Method
Measures Method
miRgnHoleParent Method
miRgnNestedWithinIndex Method
mpRgnCentroidAsPoint Method
mRgnArea Method
mRgnAreaUncalib Method
mRgnAspect Method
mRgnBoundingBoxHeight Method
mRgnBoundingBoxWidth Method
mRgnBoxArea Method
mRgnBoxXY Method
mRgnCentroidX Method
mRgnCentroidY Method
mRgnClassNumber Method
mRgnClockwise Method
mRgnClumpiness Method
mRgnConvexPerimeter Method
mRgnDendriticLength Method
mRgnDensity Method
mRgnDensityUncalib Method
mRgnDirection Method
mRgnEllipsePerimeter Method
mRgnFractalDimension Method
mRgnHeterogeneity Method
mRgnHoleArea Method
mRgnHoleAreaRatio Method
mRgnIllFormed Method
mRgnIntegratedOD Method
mRgnLength Method
mRgnMajorAxis Method
mRgnMargination Method
mRgnMassCentroidX Method
mRgnMassCentroidY Method
mRgnMaxCaliper Method
mRgnMaxDiameter Method
mRgnMaxIntensity Method
mRgnMaxRadius Method
mRgnMeanBlue Method
mRgnMeanCaliper Method
mRgnMeanDiameter Method
mRgnMeanGreen Method
mRgnMeanRed Method
mRgnMinCaliper Method
mRgnMinDiameter Method
mRgnMinIntensity Method
mRgnMinorAxis Method
mRgnMinRadius Method
mRgnNestedChildrenCount Method
mRgnNestingDepth Method
mRgnNumDendrites Method
mRgnNumEndPoints Method
mRgnNumHoles Method
mRgnPerArea Method
mRgnPerimeter Method
mRgnPerimeter2 Method
mRgnPerimeterRatio Method
mRgnPerimeterUncalib Method
mRgnPixelCentroidX Method
mRgnPixelCentroidY Method
mRgnPolygonialArea Method
mRgnPolygonialAreaUncalib Method
mRgnRadiusRatio Method
mRgnRelativeSize Method
mRgnRoundness Method
mRgnSizeCount Method
mRgnStdDevIntensity Method
mRgnWidth Method
mrRgnConvexHullAsRegions Method
mrRgnEquivEllipseAsRegions Method
mrRgnHolesAsRegions Method
mvRgnBranchLengths Method
mvRgnHoleIndices Method
mvRgnNestedChildIndices Method
Profiles Method
Reference Method
Threshold Method
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RegionsOperatorsmRgnLength Method

Caliper (i.e. Feret diameter) along the major axis of region.

Namespace:  MediaCy.IQL.Operators
Assembly:  MediaCy.IQL.Operators (in MediaCy.IQL.Operators.dll) Version: 3.1.0.0
Syntax
VB
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<ExtensionAttribute>
Public Shared Function mRgnLength ( 
	regions As McRegions
) As McMeasure

Parameters

regions
Type: MediaCy.IQL.FeaturesMcRegions

Return Value

Type: McMeasure

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type McRegions. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).
Remarks
For this measurement, the region boundary is oriented along the major axis of an equivalent ellipse using the mRgnDirection measurement. mRgnDirection is a pixel-based measurement, so for regions created by the McThreshold.Execute method or McFeatures.SetFromMask method (features of Type mcftScanList), holes in the blob are significant. The actual caliper is done using the oriented boundary polygon, so that sub-pixel vertex locations are significant, as is the OptionFlags mcofOutlinePixelTiles bit.
See Also