\documentclass{article}
% translate with >> pdflatex -shell-escape <file>

% This file is an extract of the PGFPLOTS manual, copyright by Christian Feuersaenger.
% 
% Feel free to use it as long as you cite the pgfplots manual properly.
%
% See
%   http://pgfplots.sourceforge.net/pgfplots.pdf
% for the complete manual.
%
% Any required input files (for <plot table> or <plot file> or the table package) can be downloaded
% at
% http://www.ctan.org/tex-archive/graphics/pgf/contrib/pgfplots/doc/latex/
% and
% http://www.ctan.org/tex-archive/graphics/pgf/contrib/pgfplots/doc/latex/plotdata/

\usepackage{pgfplots}
\pgfplotsset{compat=newest}

\pagestyle{empty}

\begin{document}
\begin{tikzpicture}
\begin{axis}
% FokkerDrI_layer_0.facetIdx.dat contains:
% # each row makes up one facet; it 
% # consists of 0-based indices into 
% # the vertex array
% 0	1	2 % triangle of vertices #0,#1 and #2
% 0	3	1 % triangle of vertices #0,#3 and #1	
% 3	4	1	
% 5	6	7	
% 6	8	7	
% 8	9	7	
% 8	10	9	
% ...
% while FokkerDrI_layer_0.vertices.dat contains
% 105.577	-19.7332	2.85249	% vertex #0
% 88.9233	-21.1254	13.0359	% vertex #1
% 89.2104	-22.1547	1.46467	% vertex #2
% 105.577	-17.2161	12.146	
% 105.577	-10.6054	18.7567	
% 105.577	7.98161	18.7567	
% 105.577	14.5923	12.146	
% ...
\addplot3[patch,shader=interp,
	patch table=
		{plotdata/FokkerDrI_layer_0.facetIdx.dat}] 
	file
	{plotdata/FokkerDrI_layer_0.vertices.dat};
\end{axis}
\end{tikzpicture}
\end{document}
