AreaEll, PerimEll  
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Menu:   Measure > Parameters  
Script:   SelectParam ("AreaEll", "PerimEll")  

Select these parameters to compute the area and perimeter of the equivalent ellipses of objects. The equivalent ellipse is defined as an ellipse that has the same moments of inertia as the corresponding object. The elliptical are and perimeter are derived from the major and minor axes
of the equivalent ellipse and are returned in calibrated units. The following formulas are used in calculations: