Re: Plot using pgfplots: order of appearance of two simple plots

["Procházka Lukáš Ing. - Pontex s. r. o." <LPr@pontex.cz>]

Hello Mojca,

thanks a lot for your answer and proposals.

I'll try them one after other... Option "reverse legend" is most promising so far.

Best regards,

Lukas


On Mon, 21 Dec 2015 14:45:25 +0100, Mojca Miklavec <mojca.miklavec.lists@gmail.com> wrote:

> On 21 December 2015 at 13:55, Procházka Lukáš Ing. - Pontex s. r. o. wrote:
>> Hello,
>>
>> I'm just starting with pgfplots library.
>>
>> I have two plots, one being filled:
>>
>> ----
>> \usemodule[pgfplots]
>>
>> \starttext
>>   \starttikzpicture
>>     \startaxis[legend entries={Sin,Cos}]
>>       \addplot+[mark=none]     {sin(deg(x))};
>>       \addplot+[mark=none,fill]{cos(deg(x))};
>>     \stopaxis
>>   \stoptikzpicture
>> \stoptext
>> ----
>>
>> The problem is that the latter plot hides the former as they appear in the
>> order they are defined.
>>
>> A solution would be to change the order - to swap plot "Sin" and "Cos".
>>
>> But also I need to keep the order in which plots appear in the legend - it's
>> important to keep "Sin" followed by "Cos";
>> I'm looking for a way to set the order of plots, something like
>>
>> \addplot+[mark=none,order=2]     {sin(deg(x))};
>> \addplot+[mark=none,order=1]     {sin(deg(x))};
>>
>> or
>>
>> \addplot+[mark=none,z=2]     {sin(deg(x))};
>> \addplot+[mark=none,z=1]     {sin(deg(x))};
>>
>> Although I'm having pgfplots.pdf ("Package PGFPLOTS manual", 20. 10. 2013)
>> open, I cannot find a solution.
>>
>> Would anyone more experienced have an idea?
>
> There is an option "z buffer", but I guess that's only applicable for
> a single \addplot.
>
> There is an option "reverse legend" (page 213), but you might need to
> take extra care about colours:
>
>     \startaxis[legend entries={Cos,Sin},reverse legend]
>       \addplot+[mark=none,fill]{cos(deg(x))};
>       \addplot+[mark=none]     {sin(deg(x))};
>     \stopaxis
>
> There is an option "reverse stacked plots" which I don't fully
> understand, but it claims to reverse a number of things.
>
> There is (somewhat low level) support for layers in TikZ. You can look
> for "on background", "pgfonlayer", "on background layer", etc. (But
> that calls for slightly more work than just providing a simple option
> like "zorder=...").
>
> If you don't get the answer here, I would suggest you to ask the
> author of pgfplots, to raise the question on their mailing list (if
> they have one) or to try luck on http://tex.stackexchange.com/. There
> are probably not so many experts in pgfplots on this mailing list and
> the question doesn't seem to be ConTeXt-specific.
>
> (I'm often using matplotlib with export to TikZ, even though that's
> sometimes horribly slow and probably not exactly what you were looking
> for either.)
>
> Mojca
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Ing. Lukáš Procházka | mailto:LPr@pontex.cz
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