% *======================================================================*
%  Cactus Thorn template for ThornGuide documentation
%  Author: Ian Kelley
%  Date: Sun Jun 02, 2002
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% If you are using CVS use this line to give version information
% $Header$

\documentclass{article}

% Use the Cactus ThornGuide style file
% (Automatically used from Cactus distribution, if you have a
%  thorn without the Cactus Flesh download this from the Cactus
%  homepage at www.cactuscode.org)
\usepackage{../../../../doc/latex/cactus}

\begin{document}

% The author of the documentation
\author{Michael Koppitz \textless koppitz@aei.mpg.de\textgreater}

% The title of the document (not necessarily the name of the Thorn)
\title{PunctureTracker}

% the date your document was last changed, if your document is in CVS,
% please use:
\date{$ $Date$ $}

\maketitle

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% Add all definitions used in this documentation here
%   \def\mydef etc

% Add an abstract for this thorn's documentation
\begin{abstract}
   \texttt{PunctureTracker} tracks black hole Punctures
   (singularities) by subtracting the value of the shift at the
   current location (the pucnture is advected with the shift)
   storing the location in a ``SphericalSurface'' one can use this
   information in Regrid2 to let the grid follow the BHs.
\end{abstract}

% The following sections are suggestive only.
% Remove them or add your own.

\section{Parameters}

   \texttt{PunctureTracker} has the followoing options:
   -pt\_track\_punctures (boolean, that triggers action)\\
   -pt\_verbose         (integer that give the verbosity level)\\
   -pt\_num\_tracked     (integer that tells how many Punctures are to
   be tracked)\\
   -pt\_initial\_x (double: Initial x coordinate positions of BHs)\\
   -pt\_initial\_y     (double: Initial y coordinate positions of BHs)\\
   -pt\_initial\_z     (double: Initial z coordinate positions of BHs)\\
   -pt\_which\_surface\_to\_take (integer: which Spherical Surface should
   be used to store the new puncture location)

\section{Grid Scalars}
   -(pt\_loc\_x, pt\_loc\_y, pt\_loc\_z) location of puncture
   -(pt\_shiftx, pt\_shifty, pt\_shiftz) value of shift at location of puncture


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\end{document}