Re: Colors in plots and legend position

[Joe Koski]

on 9/22/05 10:20 AM, Quentin Spencer at address@hidden wrote:

> John W. Eaton wrote:
> 
>> On 21-Sep-2005, avraham wrote:
>> 
>> | 1-The number of colors offered by gnuplot and gnuplot-based octave
>> | graphics is very limited. I guess that the idea is that it is
>> | easier to distinguish between curves with markedly different
>> | colours and, if need be, different line types/thicknesses than
>> | between close hues.
>> | A different approach is taken by the eplot function of
>> | octave-epstk. There you can define the color of the lines by the
>> | RGB content. You may have a look into that.
>> 
>> I recently noticed the following in the NEWS file for gnuplot (from
>> the CVS archive):
>> 
>>  News, changes and fixes since gnuplot version 4.0
>>  =================================================
>>  [...]
>>  * NEW 3D plots can read RGB color triples as part of input data
>>  * NEW linetype colors via "lt {palette {frac <val> | cb <val>}}"
>>  * NEW linetype colors via "lt {rgbcolor {"name" | "#RRGGBB"}}"
>>  * NEW palette and rgb linetype colors apply to all 2D and 3D plot elements
>> 
>> jwe
>>  
>> 
> 
> These features sound great. We've been hearing for a while about things
> in "gnuplot 4.1", but there's still no actual release. Are there any
> gnuplot developers who read this list? Can a release be expected any
> time soon? Some of these features are really needed to improve octave's
> graphics, but most users aren't willing to download CVS to get them, and
> I don't think it makes sense to start rewriting octave's plot interface
> to use them until a release exists.
> 
> -Quentin
> 
Quentin,

A while back Per Persson, the developer of AquaTerm (an X11 alternative for
Macs), offered to help me install gnuplot-4.1 (from CVS) on my Mac. I never
took him up on that offer.

Per says that with a script, you can have both 4.0 and 4.1 installed at the
same time, and easily alternate between them. He also said that it took
several years before gnuplot-4.0 was released, so expect a similar wait for
4.1. 

This happened about a year ago. Per may have more recent information because
of the AquaTerm interaction with gnuplot.

Joe






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