key,
tree.getColumn(value));
}
final Column order = visualization.getVisualColumn("sort");
final Column size = visualization.getVisualColumn(Visualization.VISUAL_SIZE);
Permutation perm = visualization.getPermutation();
perm.sort(new RowComparator() {
public int compare(int row1, int row2) {
if (tree.isLeaf(row1) && tree.isLeaf(row2)) {
return size.compare(row1, row2);
}
else {