Re: gnuplot graphics toolkit bugs

[Tatsuro MATSUOKA]

----- Original Message -----

> From: Daniel J Sebald 
> To: Tatsuro MATSUOKA 
> Cc: Maintainers List Octave 
> Date: 2015/6/24, Wed 01:49
> Subject: Re: gnuplot graphics toolkit bugs
> 
> On 06/23/2015 04:06 AM, Tatsuro MATSUOKA wrote:
> 
>>>  https://savannah.gnu.org/bugs/?38914
>>>  bug #38914: Gnuplot axis reverse is not working with gnuplot 5
>> 
>> 
>>  I added information of gnuplot version and NOTE in change in reverse option 
> to the
>>  bug #38914.
> 
> OK.  I see you updated that note.  The issue you referred to, i.e., 
> has-feature 
> "has_termoption_dashed", in gnuplot >=4, <5 series, has been 
> addressed in the changeset associated with
> 
> https://savannah.gnu.org/bugs/?34523
> bug #34523: surf() with gnuplot does not handle FaceColor correctly
> 
> where I added a has-feature "dashtype" in order to add control for 
> line characteristics.
> 
> We should probably open a new bug report or patch for utilizing 
> "dashtype" in gnuplot 5+.  I don't think it is as simple as 
> replacing "has_termoption_dashed" with "dashtype" because 
> the term option is probably set at a different location in the gnuplot stream 
> than is linetype qualifier, i.e., one is used when the terminal (output type) 
> is 
> selected, the other as part of the plot/splot command.

For gnuplot version 5, dashed/dotted line can be treated irrespective to kind 
of terminal.
In addition, we can define dashed/dotted types by the gnuplot script.

The code can be written in unified way and line property of dashed/dotted with 
wide various types. 

Another change in gnuplot 5 is that enhanced mode is default so that no need to 
set enhanced option.
In addition. \oblique keyword is active not only postscript but also all other 
terminal.

Tatsuro