Re: Colors in plots and legend position

[Jonathan Stickel]

Javier Arantegui wrote:
> Hello,
>
> I'm pretty sure that these questions have been discused in the list before but 
> I haven't been able to find the messages in the archive :-(
>
> I'm using Octave 2.9.3.
>
> I am programing a function that plots a graphic and I need more than 6 colors. 
> Is possible to use more than 6?
>
> 'help plot' says:
>
> "   `C'
>           If C is one of `"r"', `"g"', `"b"', `"m"', `"c"', or `"w"',
>           it is interpreted as the plot color (red, green, blue,
>           magenta, cyan, or white)."
>
> OK. But, below that you can read:
>
> "     The color line styles have the following meanings on terminals that
>      support color.
>
>           Number  Gnuplot colors  (lines)points style
>             1       red                   *
>             2       green                 +
>             3       blue                  o
>             4       magenta               x
>             5       cyan                house
>             6       brown            there exists"
>
> That is a little bit inconsistent because in one of the cases there is white 
> but in the other it mutates to brown.

Some terminals have more than 6 colors, and the colors change depending 
on the terminal.  Try running gnuplot by itself and then issue the 
command "test".

> Another question, is possible change the place where the legend is written 
> withou use the command 'legend' from octave-forge?

You can use the gnuplot command (in octave)

__gnuplot_set__ key <options>

The gnuplot manual, while not exactly easy reading, is useful when 
wanting to do things that are not implemented yet in Octave.  It can be 
found here:

http://www.gnuplot.info/documentation.html

Jonathan



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