Re: [Gnuplot-info] color blindness and gnuplot default colors

[Micha W. <mw...@gm...>]

Hi,

Are there any arguments against changing gnuplots default colors to help 
  people with color blindness? I think red and green following 
immediatly each other is rather poor.

Here is my email from gnuplot-info:

Hernán Gonzalo Asorey wrote:
> On Thu, Feb 14, 2008 at 8:57 AM, Micha Wiedenmann <mw...@gm...> wrote:
>> Hi there,
>>
>>  gnuplot default colors seem to be
>>
>>  1 red
>>  2 green
>>  3 blue
>>  4 magenta
>>  5 cyan
>>  ...
>>
>>  I think it would be helpful for people with color blindness to change
>>  that order into
>>
>>  1 red
>>  2 blue
>>  3 magenta
>>  4 cyan
>>  5 green
>>
>>  This makes the clas of red and green less likely.
>>
>>  A workaround is using linetype in the plot command as in
>>
>>  plot [][-1:1] sin(x), cos(x) lt 3, tan(x) lt 4, x lt 5, x**2 lt 2, x**3
>>
>>  or defining line styles
>>
>>  set style line 2 lc 3
>>  set style line 3 lc 4
>>  set style line 4 lc 5
>>  set style line 5 lc 2
>>  set style increment user
>>  plot [][-1:1] sin(x), cos(x), tan(x), x, x**2, x**3
>>
>>  But this is lots of work on a day by day basis and I see no argument
>>  against change gnuplots default, at least moving green down in the color
>>  list.
 >
 > This is a good idea. As far as I know you can "pseudo-implement" that
 > by seting the .gnuplot file (or GNUPLOT.INI) in your home directory:
 >
 > "[...] If the initialization file is found, `gnuplot` executes the
 > commands in it.
 >  These may be any legal `gnuplot` commands, but typically they are 
limited to
 >  setting the terminal and defining frequently-used functions or 
variables."
 >
 > (see help .gnuplot for further details).
 > Cheers,
 >
 > Hernán