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From: Ethan A Merritt <EAMerritt@gmail.com>
Newsgroups: comp.graphics.apps.gnuplot
Subject: Re: sensible defaults? (was: [cairolatex] 4.6 -> 5.0 regression)
Date: Sun, 22 Mar 2015 11:20:43 -0700
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giacomo boffi wrote:

> Ethan A Merritt <EAMerritt@gmail.com> writes:
> 
>> giacomo boffi wrote:
>>
>>> I have the following test file
>>> 
>>> |set terminal cairolatex pdf standalone mono dashed
>>> |set output 'test.tex'
>>> |test
>>> |set output
>>
>> Version 5.0 differs from earlier versions in several ways.
>> This is why it got a new major version number (4->5) rather
>> than just a bump from 4.6 to 4.8.
>>
>> The keyword "dashed" is no longer needed, and indeed is ignored.
>> Instead you can set dashed lines at any time.  Please read the
>> Release Notes and the section on significant changes in the
>> user manual.
> 
> Done, thank you.  If one wants monochrome plots (I may be left alone
> in the world, but I'd prefer monochrome plots) one would like sensible
> defaults but
> 
>   "All lines have the property dashtype solid unless you specify
>    otherwise."
> 
> =======
> 
> Having said that I've found "colors_mono.gp",
> 
> |# Provide a consistent set of four distinguishable
> |# black line types.
> |# NB: This does not work with "set term post mono"
> |#
> |unset for [i=1:8] linetype i
> |set linetype 4 dt 1 lw 2 lc rgb "black"
> |set linetype 3 dt 3 lw 1.5 lc rgb "black"
> |set linetype 2 dt 2 lw 1.5 lc rgb "black"
> |set linetype 1 dt solid lw 1 lc rgb "black"
> |set linetype cycle 4
> |#
> |set palette gray
> 
> is it possible to auto-load an analogous file when I specify a mono
> option in a "set terminal" command?

The idea is to move toward options being universal rather than 
specific to a particular terminal or terminal setting.

I agree that it would be nice to have a series of mono setting
built in, analogous to "set colors {default|classic|podo}"
It might logically be controlled by "set colors mono" or just
"set mono".   But neither of these is present in 5.0


> Or, in any other possible way, is it possible to have sensible
> defaults for monochrome plots, especially when working interactively?
> 
> The "dashed" option was indeed very convenient. RIP.

As an alternative to "load 'colors_mono.gp'", I suggest trying

  set for [i=1:N] linetype i dashtype i linecolor "black"


	Ethan