\section{E\-V\-E\-N\-T Namespace Reference}
\label{namespaceEVENT}\index{E\-V\-E\-N\-T@{E\-V\-E\-N\-T}}


======= F\-P\-C\-C\-D\-Pixelhit ========== \par
 A class represents one F\-P\-C\-C\-D pixel hit \par
 Pixel\-Hit I\-D is given by ( layer, ladder, xi, zeta ).  




\subsection{Detailed Description}
======= F\-P\-C\-C\-D\-Pixelhit ========== \par
 A class represents one F\-P\-C\-C\-D pixel hit \par
 Pixel\-Hit I\-D is given by ( layer, ladder, xi, zeta ). xi and zeta are pixel address in a coordinate system local to a ladder. zeta is along Z axis, xi is in the ladder plain and eta is perpendicular to the plain of ladder.

cell\-I\-D convension for F\-P\-C\-C\-D layer I\-D is from 0 to 5 ( for 6 layers configuration ) ladder I\-D is from 0 to ( number of ladders -\/ 1 ), depending on the layer I\-D. Pixel I\-Ds start from 0. (xi, zeta) is a local coordinate attached to a ladder. xi is coordinate along shorter axix of ladder zeta is coordinate along longer axis of ladder. the direction of xi axis is same as X axis of laboratory coordinate when a ladder is at phi=90 degree. the direction of zeta axis is same as Z axis of laboratory coordinate. the eta axis is perpendicular to a ladder. when phi=90 degree, it matched Y axis. The origin of local coordinate system, (xi, eta, zeta) is placed at the intersection of the line from I\-P and perpendicular to the ladder.

See also comment in F\-P\-C\-C\-D\-Digitizer\-::encode\-F\-P\-C\-C\-D\-I\-D(...)

\par
 \begin{DoxyAuthor}{Author}
Akiya Miyamoto, K\-E\-K\-: 2010-\/04-\/19 
\end{DoxyAuthor}
