dup_plot question/problem

Hi John - 

It looks like multiplot() confuses dup_plot().  I was trying to make
two plots per page by specifying 2 rows, 1 column with open_plot(),
but also use multiplot() to split the top window.  Without
multiplot(), the postscript file set up with dup_plot() is OK - it has
one page, two plots.  However, if I modify the example to split the
top plot with multiplot(), it is as desired on the screen, but the ps
file from dup_plot() comes out on two pages.

Is this a bug? a feature?  I haven't used dup_plot() much, but thought
I'd would to see if I could save myself repeated plot configuration
for the ps version.

An example is appended below.

Thanks,

-- Dave

David Huenemoerder  617-253-4283 (o); -253-8084 (f); http://space.mit.edu/home/dph
MIT Kavli Institute for Astrophysics and Space Research
70 Vassar St., NE80-6065,
Cambridge, MA  02139
[Admin. Asst.: Elaine Tirrell, 617-253-7480, egt_at_email.domain.hidden

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Example 1:

% 2 plots/page: (OK)
%
variable pwid = open_plot( "/xwin", 1, 2 ) ;

xlabel( "x");
ylabel( "y" );
title("top");
plot( [0,1], [0,1] ) ;

xlabel( "xx");
ylabel( "yy" );
title("bottom");
plot( [0,1], [1,0] ) ;


%  repeat to file: (OK)
%
variable pid = dup_plot("Tst-1.ps/vcps", pwid );

xlabel( "x");
ylabel( "y" );
title("top");
plot( [0,1], [0,1] ) ;
xlabel( "xx");
ylabel( "yy" );
title("bottom");
plot( [0,1], [1,0] ) ;

close_plot(pid);

window(pwid);

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

% Example 2: two plots/page, top plot split: (OK)

multiplot([2,1] ) ; 
xlabel( "x");
ylabel( "y" );
title("top");
plot( [0,1], [0,1] ) ;
ylabel( "z" );
plot( [0,1], [1,0] ) ;
multiplot(1);

xlabel( "xxx");
ylabel( "yyy" );
title("bottom");
plot( [0,1,2], [1,0,1] ) ;


% repeat to file (not OK: gives 2 page output, not one):

pid = dup_plot("Tst-2.ps/vcps", pwid );

multiplot([2,1] ) ; 
xlabel( "x");
ylabel( "y" );
title("top");
plot( [0,1], [0,1] ) ;
ylabel( "z" );
plot( [0,1], [1,0] ) ;
multiplot(1);

xlabel( "xxx");
ylabel( "yyy" );
title("bottom");
plot( [0,1,0], [1,0,1] ) ;

close_plot(pid);
window(pwid);
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