question: private double computeLoadingsScaleFactor ( double [ ] vector ) { if ( vector . length >= 2 ) { final double length = Math . sqrt ( Geometry . squaredDistance ( 0 , 0 , vector [ 0 ] , vector [ 1 ] ) ) ; if ( length > 0 ) { final Rectangle2D bbox = graphView . getBBox ( ) ; return 0.2 * Math . min ( bbox . getWidth ( ) , bbox . getHeight ( ) ) / ( length ) ; } } return 1 ; }
target:  compute the scale factor to be used when drawing loadings