TIEPolylineLayer.CalculateArea

Declaration

function CalculateArea(Units: TIEUnits): double;

Description

Returns the area covered by drawn area of the polyline layer.

Note:
◼Use TImageEnView.SetScale to adjust the scale of units
◼Polyline must contain at least three points
◼Layer will be treated as a polygon even if not closed
◼Polyline measurement is less accurate than other layer types

Example

// Show area of current polygon in MM
ShowMessage( 'Area is ' + IntToStr( Trunc( TIEPolylineLayer( ImageEnView1.CurrentLayer).CalculateArea( ieuMillimeters ) )) + ' mm' );

See Also

◼CalculateLength
◼CalculateCentroid
◼SetScale
◼Dpi
◼MeasureUnits

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