Re: postscript monochrome and specified color

[Ethan A M. <merritt@u.washington.edu>]

On Wednesday 02 August 2006 11:32 pm, Daniel J Sebald wrote:
> gnuplot> set term pdf monochrome
> Terminal type set to 'pdf'
> Options are 'monochrome noenhanced fname 'Helvetica'  fsize 6 linewidth 1.0  '
> gnuplot> set output 'foo2.pdf'
> gnuplot> plot x lc rgb "red"
> 
> Not only is the PDF file not monochrome, in addition to the line being red, the borders are red.

Dang. That was Bug #1517932.  I thought I fixed that one already.

grumble, grumble.

Wait a minute.  

The "monochrome" option to pdf seems never to have been
implemented fully. It doesn't actually *do* anything.
It just *doesn't* change the linetype.  So in mono mode, whatever linetype
you have is stuck forever.  At the least, setting "mono" should also
select "dashed" so you can tell the lines apart.  But it doesn't,
perhaps because "dashed" is itself not supported by all versions of
PDFlib.

So this one may not be fixable for 4.2, although I suppose I can at
least patch it to set the line color back to black.

Obviously no one is using PDF in mono mode, or this would have
been noticed a long time ago.


-- 
Ethan A Merritt
Biomolecular Structure Center
University of Washington, Seattle 98195-7742