first improvement

Author: stu241636

plugins/org.eclipse.elk.core/src/org/eclipse/elk/core/util/BoxLayoutProvider.java

@@ -194,6 +194,8 @@ private KVector placeBoxes(final List<ElkNode> sortedBoxes, final double minSpac
         double stddev = areaStdDev(sortedBoxes, mean);
 
         totalArea += (sortedBoxes.size() * 1 * stddev);
+        // add padding to total area
+        totalArea += Math.sqrt(totalArea) * (padding.getBottom() + padding.getTop());
 
         // calculate the required row width w to achieve the desired aspect ratio,
         //  i.e.:  w*h=area s.t. w/h=dar  ->  w=sqrt(area * dar)