How can I set width or height of an object?

Hi Guys,

is there a simple method to set a width/height of an object in absolute values without messing with .geometricBounds?

Something like this:

app.activeDocument.selection [0].width = "150 mm";

or

app.activeDocument.selection [0].width("150 mm", ConstrainProportion.Yes, AnchorPoint.bottomLeftAnchor);

The object is in my case usually a vector graphic copied out of Illustrator.

PanDulka