LaTeX forum ⇒ Graphics, Figures & Tables ⇒ TikZ surface plot file size Topic is solved

[h4mmk]

Hi, I am plotting three-dimensional surfaces using pgfplots. An example follows.

Code: [Select all] [Expand/Collapse] [Download] (Untitled.tex) Open in Overleaf

\documentclass{standalone}
\usepackage{pgfplots} 
\pgfplotsset{compat=1.14} 
 
 
\begin{document}
\begin{tikzpicture}
\begin{axis}[view={20}{10},axis lines=none,xmin=-15, xmax=15,ymin=-15, ymax=15,zmin=-1, zmax=4]
 
\addplot3[surf, 
           fill opacity=1, 
           draw opacity=1,
           shader=interp,
           colormap={outside}{color=(blue!40) color=(blue)},
           point meta=-abs(x),  
           mesh/interior colormap={inside}{color=(red!40) color=(red)},
           domain=0.01:15, 
           y domain=0:2*pi,
           samples=30 
           ]
           ({x*cos(deg(y))},{x*sin(deg(y))},{sqrt(x)});
 
\end{axis}
\end{tikzpicture}
\end{document}

When I compile this code with PDFLaTeX, the resulting PDF document is 900KB. I have many such surfaces in the master file that I am working on, so it has a huge file size. I can reduce the size of each surface by reducing the number 30 in "samples=30", but quality suffers.

My question, then, is whether anyone has advice on how my code could be adjusted to drastically reduce the size of the files, but retain the quality. Too much to ask for, perhaps, but any suggestions on this subject will be appreciated nonetheless! Thank you very much.

[Stefan Kottwitz]

PDF compression could be used, such as, for example:

Code: [Select all] [Expand/Collapse] [Download] ({untitled.tex}) Open in Overleaf

\pdfminorversion=5
\pdfcompresslevel=9
\pdfobjcompresslevel=3

Either for the single plot and include it as pdf image, or for the whole document. Another option would be compression by Ghostscript.

Stefan

[h4mmk]

Thanks very much for your helpful advice, which will certainly come in useful!

To get round the problem, I switched from TikZ to Asymptote. The latter seems better suited for displaying surfaces.