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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% GLE - Graphics Layout Engine <http://glx.sourceforge.io/> %
% %
% Modified BSD License %
% %
% Copyright (C) 2009 GLE. %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\section{Fitz}
\index{fitz} \label{fitz:sec}
{\sf FITZ} fits smooth curves based on a set of 3D data points. E.g., given some data points (note that each line has three values: an x, y, and z coordinate):
\begin{verbatim}
x y z
---- data file testf.dat -----
1 1 1
1 2 1
2 2 1
2 1 1
1.5 1.5 2
------------------------------
\end{verbatim}
Fitz creates a ".z" file that can be used in a surface block, a colormap or contour plot. The following example illustrates this.
\begin{minipage}[c]{8cm}
\begin{Verbatim}
begin fitz
data "fitz.dat"
x from 0 to 5 step 0.2
y from 0 to 5 step 0.2
ncontour 6
end fitz
begin surface
size 7 7
data "fitz.z"
top color blue
xaxis min 0 max 5 step 1
yaxis min 0 max 5 step 1
points "fitz.dat"
droplines lstyle 1
marker circle
view 2.5 3 0.3
harray 5000
end surface
\end{Verbatim}
\end{minipage}
\hfill
\begin{minipage}[c]{7cm}
\mbox{\includegraphics{utilities/fig/fitz1}}
\end{minipage}
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