Treemap Horizontal/Vertical Layout

[ahoiin]

Hi,
how can I set the horizontal or vertical layout for the treemap independent of the width/height ration?
I would like to create a wide treemap with the fields appearing underneath thus the labels are better readable.
Screenshot 1 (wider than higher) should be like Screenshot 2 (higher than wider).

[mbostock]

You can’t really do this using squarify.ratio because that ratio is independent of the orientation and is always greater than or equal to one.

If you are willing to give up inner padding, you can approximate this result by instead using a squarify.ratio of one, and then stretching the resulting treemap to fit the desired target ratio. Here’s an example:

http://bl.ocks.org/mbostock/5c50a377e76a1974248bd628befdec95

[ahoiin]

Yeah that should work. Thanks for that.
In that case w and h should be greater 0 otherwise -1px will break the layout.
var w = Math.round(d.x1 * ratio) - Math.round(d.x0 * ratio); return (w > 0 ? w - 1 : 0) + "px";