Re: [Groff] multiple postscript images in one figure?

[Tadziu Hoffmann]

>       image1   image2    image3
>        (a)       (b)       (c)
> 
> Caption: a common caption for all (a), (b) and (c)

Use mark and return.
Here's how I would do it if the pictures all have the same size:

  .begin_float
  .mk
  .PSPIC -L pic_A width
  .rt
  .PSPIC -C pic_B width
  .rt
  .PSPIC -R pic_C width
  .caption
  caption text
  .end_float

where begin_float, end_float, and caption are whatever macros
your package provides for these purposes, and width is computed
to allow three pictures side-by-side.
If the images don't have the same size, use the indent option
of PSPIC to place them so they don't overlap.

The other configurations can be achieved with variations of the
same basic idea.