[Groff] left of center

[James K. Lowden]

What's the right way to control where on the x axis a picture
appears when using -ms?  

In tbl, it's controlled with the "center" option for the table, and
defaults to left-justified.  In pic it's controlled by .PS, outside pic
itself.  

I have a page of interspersed tbl and dformat elements.  It would look
better if the dformat output began where the tables do, at the left
edge.  To do that, I guess I have to insert some
troff-in-pic-in-dformat stuff.  Even if I get it to work, ISTM it would
be quite fragile because I'd be breaking assumptions about positioning
that pic and dformat might be making.  

Thanks, 

--jkl