Re: [Groff] how to use .GETST in a figure caption?

[Anton Shterenlikht]

        From address@hidden Wed Aug 22 16:36:13 2012

        Anton Shterenlikht:

        > > Also,  you can use the second argument to .GETST
        > > to save the reference into a string and use that
        > > in the caption.
        >
        > Thanks, this works:
        >
        >     .PSPIC rep-cold-mises-mesh.ps 6.0
        >     .ds caption "Mises stress in the 0.3 mm notch model
        >     .as caption " at \*[cold]\"
        >     .as caption " at \*[ep02]\"
        >     .as caption " at the notch root.
        >     .as caption " The fine grain material is at the top,\"
        >     .as caption " and the coarse grain material is at the\"
        >     .as caption " bottom. The discontinuity of stress at\"
        >     .as caption " the boundary is cleary visible.\"
        >     .FG "\*[caption]" "" 0 fig:cold-mises-mesh
        >     .SETR fig:cold-mises-mesh
        >     .DE
        >
        >     .DS CB
        >     .PSPIC rep-cold-mises-nomesh.ps 6.0
        >     .ds caption "Same as Fig.\"
        >     .as caption " .GETST fig:cold-mises-mesh,\"
        >     .as caption " but with mesh not shown for clarity.\"
        >     .FG "\*[caption]" "" 0 fig:cold-mises-nomesh
        >     .SETR fig:cold-mises-nomesh
        >     .DE

        But it's not what I meant.  A couple of notes:

          a.  The  calls of .SETR in your example are redun-
              dant in both cases because  the  corresponding
              references  are  already  set  by the previous
              call of .FG via its fourth argument.

          b.  Your version  works  only  because  .FG,  when
              called    from    within   a   display,   uses
              address@hidden instead of address@hidden
              The  former  relies  on delayed expantion (see
              escape '\!') which causes a macro call  within
              a string to be interpreted.

        I was suggesting to call

            .ds rsql\" to smother an error message on first pass
            .GETST fig:cold-mises-mesh ref:cmm

        in  the  beginning  of the ducument and then use the
        resulting string \*[ref:cmm] in captions.

Thanks. I actually sent you the wrong
snippet. Except for ".ds rsql" bit,
which I don't know yet, I did what you
suggested, e.g.:

********************************************************************

.GETST fig:model fig:model:s

.H 1 "The model"
The model used in this work is shown in Fig. \*[fig:model:s] below.

.DS CB
.PS 3
copy "model.pic"
.PE
.DE
.ds caption "Schematic of the 3-point bend model,\"
.as caption " showing the bar with the notch in the top layer\"
.as caption " and the cylindrical pins.\"
.as caption " The notch is not to scale.\"
.FG "\*[caption]" "" 0 fig:model

********************************************************************

or this one

********************************************************************

.DS
.PSPIC rep-cold-mises-mesh.ps 6.0
.DE
.ds caption "Mises stress in the 0.3 mm notch model\"
.as caption " at \*[cold]\"
.as caption " at \*[ep02]\"
.as caption " at the notch root.\"
.as caption " The fine grain material is at the top,\"
.as caption " and the coarse grain material is at the\"
.as caption " bottom. The discontinuity of stress at\"
.as caption " the boundary is cleary visible.\"
.FG "\*[caption]" "" 0 fig:cold-mises-mesh
.GETST fig:cold-mises-mesh fig:cold-mises-mesh:s

.DS
.PSPIC rep-cold-mises-nomesh.ps 6.0
.DE
.ds caption "Same as Fig. \*[fig:cold-mises-mesh:s],\"
.as caption " but with mesh not shown for clarity.\"
.FG "\*[caption]" "" 0 fig:cold-mises-nomesh

********************************************************************

But you are right, the second example wouldn't
work if the reference is made from before
.GETST, so it's better to move to the beginning of the
document.


Many thanks for your informative replies!

Anton