[Jprogramming] Greek letters in plot titles, axis labels

[bill lam]

I can reproduce the behavior.

require'plot'
pd */~ i: 10
pd 'ycaption Polarization (-Q/I) for μ = 0.1'
pd 'show pdf'

The problem is pdf output default using Helvetica which
is not unicode enabled. It you specify a CID font such as

pd 'captionfont MSung-Light 15'

Then plot will encode the text as 16-bit ucs unicode which is
the encoding expected by acrobat and output is ok.

Thu, 13 Jun 2019, J. Patrick Harrington написал(а):
> 
> I generated a pdf file of the plot using j807 in Ubuntu and find it also
> produces a plot with the 1/4 character -- and again pd 'show' displays the
> figure with μ correctly. At this point, I haven't a clue ...
> 
> On Thu, 13 Jun 2019, J. Patrick Harrington wrote:
> > Bill,
> > Ubuntu does use evince as the .pdf reader.
> > I moved the file at ~/j901-user/temp/plot.pdf over to my mac mini which
> > uses acroread, but the character still displays as 1/4. Further, if I
> > generate a test plot with j807 on the mini, it displays μ correctly in
> > the pdf file, *and* it also displays correctly using evince when I
> > transfer it back to my Ubuntu laptop. Does this mean the problem is with
> > how plot in j901 generates the pdf file?
> > 
> > I will try an earlier version of j under Ubuntu.
> > 
> > On Thu, 13 Jun 2019, bill lam wrote:
> > 
> > >  IIRC pdf output in jplot assumed acrobat built in unicode support. On
> > >  Ubuntu it may use evince as pdf reader, you can try another pdf reader to
> > >  open the ~/temp/plot.pdf to see if it works.
> > > 
> > >  On Wed, Jun 12, 2019, 11:49 PM J. Patrick Harrington <jph at astro.umd.edu>
> > >  wrote:
> > > 
> > > >  I would like to put a Greek \mu (μ) in the y-axis label of a plot. If I
> > > >  just cut & paste the symbol it looks OK in the pd command
> > > >       pd 'ycaption Polarization (-Q/I) for μ = 0.1'
> > > >  and when I do pd'show' or pd'jpg' the result is fine, but pd'pdf' gives
> > > >  a 1/4 character instead of μ. Any suggestions on how to proceed?
> > > > >  Thanks, Patrick
> > > >  ----------------------------------------------------------------------
> > > >  For information about J forums see http://www.jsoftware.com/forums.htm
> > > >
> > >  ----------------------------------------------------------------------
> > >  For information about J forums see http://www.jsoftware.com/forums.htm
> > ----------------------------------------------------------------------
> > For information about J forums see http://www.jsoftware.com/forums.htm
> > 
> > 
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm

-- 
regards,
====================================================
GPG key 1024D/4434BAB3 2008-08-24
gpg --keyserver subkeys.pgp.net --armor --export 4434BAB3