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Jul
29
revised PGFPlots polaraxis axis labels are swapped (or in the wrong place)
deleted 5 characters in body
Jul
29
awarded  Good Answer
Jul
29
revised PGFPlots polaraxis axis labels are swapped (or in the wrong place)
added 1301 characters in body
Jul
29
answered Pgfplots and Adobe Reader DC
Jul
29
comment PGFPlots polaraxis axis labels are swapped (or in the wrong place)
This is a bug in pgfplots. I will take care of it.
Jul
29
answered PGFPlots polaraxis axis labels are swapped (or in the wrong place)
Jul
29
comment Tikz Externalize, Lualatex through pdflatex and big data
Oh, ok... try using anonym42@arcor.de (I would like to avoid spam on my real address, that's why I only post this one)
Jul
27
comment Drawing spherical 3D plot with PGFPlots
Try using \addplot[surf, ..] instead of \addplot+[...], otherwise you append your set of options to the automatically determined cycle list (which adds plot markers to each vertex and causes the strange appearance). Alternatively, use mark=none. Maybe that is already enough and you see the correct colors afterwards, I suppose they are hidden by the plot marks.
Jul
27
comment Tikz Externalize, Lualatex through pdflatex and big data
Well, surface plots as in the linked question are quite standard and should work fine without problems - even with lots of data points. If you zip your .tex file, data file, all log files (and whatever is necessary to recompile it) and send it to me by email, I can look into it to see if it is some bug. My email address is in the pgfplots manual.
Jul
26
answered Placing pgfplot graphs side-by-side in two column format
Jul
26
comment pgfplot SLERP, LERP or SQUAD existant
A mesh plot of a sphere is possible with pgfplots, and 3d scatter plots as well. The depth ordering of the data points is somewhat limited (pgfplots would not respect the depth of the sphere when placing markers). You could export the marker positions generated by SLERP + friends to a data file and visualize that using builtin methods of pgfplots.
Jul
26
comment Specify marker color to come from colormap in @pre marker code
The standard scatter styles all provide a starred version, i.e. something like scatter/use mapped color*. This key might actually do what you want: it uses \pgfplotscolormapdefinemappedcolor\pgfplotspointmetatransformed in order to make fill=mapped color a valid statement. In addition, it uses scatter/@pre marker code/.append code={} and scatter/@post marker code/.prefix code={} in order to append its functionality to an existing style selection.
Jul
26
answered Overshooting axis arrows strange behaviour with tikzexternalize
Jul
26
comment Drawing spherical 3D plot with PGFPlots
If you really need to read the color values from a file, you may need to use \addplot3 table with suitable x expr, y expr, and z expr, compare section "44.3.2 Reading Coordinates From Tables". If you encounter problems with the approach, you can post what you achieved here and we will assist you.
Jul
26
comment Drawing spherical 3D plot with PGFPlots
Welcome at tex.sx! It sounds as if you would make a parameterized surface plot to plot a sphere. You should use 3d spherical coordinates, i.e. express the parameterization in terms of two angles and radius=1. Then, specify the color data as scalar value (=math expression). according to the formulas listed in your wikipedia link. The corresponding sections in the pgfplots manual are "4.6.9 Parameterized Plots" and "4.8 Providing Color Data - Point Meta".
Jul
26
comment Tikz Externalize, Lualatex through pdflatex and big data
Ok. I would still assume that one of the external files was compiled incompletely and wrong, meaning that one of the externalization log files contains an error message -- probably the one that failed to be included. There are no known issues when using tikzexternalize with lualatex. I see two ways to go from here: (a) you post a minimal working example such that we can reproduce the problem and/or (b) you search all .log files for error messages. The best would be (a) if that is possible. There is no way to assist you without more information.
Jul
22
comment Tikz Externalize, Lualatex through pdflatex and big data
That said, one of the involved files appears to be corrupt for some reason. I recommend to rebuild all external files (i.e. delete the externalized files, rerun the externalization). This will hopefully result in a useful error message. Please show that error message such that we can identify the root cause.
Jul
22
comment Tikz Externalize, Lualatex through pdflatex and big data
The message "A Tikzpicture has been optimized away" is purely informative. It indicates expected behavior, and disabling the optimization will effectively increase the time for externalizations unnecessarily and drastically.
Jul
18
comment For stacked bar chart, how to render zero height bars as invisible?
@user23127 Yes and yes, see my edit.
Jul
18
revised For stacked bar chart, how to render zero height bars as invisible?
Updated answer: there are new possibilities with decent versions