Dear Marco,

thank you for your feedback!

Concerning your three questions in polar plots of the unstable pgfplots 
version, I am aware of the following possible solutions:

(i) Moving x axis on vertical axis,

Do you mean the "z axis", i.e. do you want to draw the x axis on top of 
the graphics? Then the "axis on top" key might help (alternative like 
layered graphics are subject of current development).

(ii) setting x-min and x max, with xmin > xmax (e.g., here for polar 
coordinates
x  [270 40] and 270 > 40, which is something LaTex does not really like!)

This is due to the fact the the polar library is not yet ready -- some 
things are simply not completely implemented yet and will hopefully be 
fixed in the next stable release. I remember trying some things like 
that - I suppose  270:400 does not work as you wanted?

(iii) adjust (and properly label) units on color bar (name of physical 
units ON
it?)

This should be possible (independent of the polar lib). I figure that a 
combination of  colorbar style and perhaps the units library will do 
what you want (or perhaps just 'colorbar 
style={ytick={1,2,3},yticklabels={a,b,c}}' or something like that, 
please refer to the manual if some keys have other names).


(iv) move the title out of the picture

Again, this is because I have not yet adjusted the default styles for 
polar axes. The solution is, in principle, easy: use
'title style={yshift=1cm}'  -- but you should use a slightly more 
elaborate solution with *absolute* positions (to remain
compatible even after I finished the lib). Perhaps 'title 
style={at={(0.5,1.2)}}' or something like that?

I hope my remarks are helpful.

Finally, I understand that you are using matlab to compute contour 
lines, then convert the format to something pgfplots understands. Note 
that pgfplots also understands the format of precomputed matlab contour 
lines directly., which might simplify your processing script. Please 
refer to the unstable pgfplots manual, in the section describing 
prepared contour line input.

Best regards

Christian

Am 10.02.2011 18:38, schrieb Miani, Marco:
>
> Halo Christian.
>
> Alles Gut?
>
> In these last months I have been working a lot with your polar 
> coordinates stuff. Very useful and nice!
>
> I am working with a numerical wave model (SWAN) that can, among many 
> other boring things, outputs text files containing spectral 
> information (wave energy, *S*). This information needs to be plotted 
> in polar coordinates (as a function of frequency (*F*) and travelling 
> direction (*D*): the two dependent variables when plotting). And I 
> wanted to do that in LaTex.
>
> I plot the contour lines of S over F and D but Latex wants a very 
> particular format for doing that, otherwise it will not swallow inputs.
>
> For my convenience I have coding some MatLab lines, where takes the 
> input, and spits it out in a LaTex *compatible format* (x y 
> contour_value). I could get some pretty good results. But there are 
> still some minor details that need to be tuned, mainly axes. Please 
> see attached PDF. I have been noting the changes I would like to make. 
> Since I am not fit in LaTex hoped you could have a brief look at it.
>
> I enclose Tex file, table file containing numerical values, and the 
> PDF output.
> Thank you very much for your precious help.
>
> Cheers
>
> --------------------------------------------------------------------------------------------------
> *Marco Miani**
> *Coastal Research Station // //Forschungsstelle Küste///
> /Coastal Engineering         // //Küsteningenieurwesen//
>
> An der Mühle 5,  26548 Norderney, Germany
> Office: +49 4932 916 100 //  Mob: +49(0)15203445065
> marco.mi...@nlwkn-ny.niedersachsen.de 
> <mailto:marco.mi...@nlwkn-ny.niedersachsen.de>
> www.nlwkn.de <http://www.nlwkn.de>
> --------------------------------------------------------------------------------------------------////
>


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