From 7660623f28eb567a780f9add6c4a0666ec2e11fc Mon Sep 17 00:00:00 2001
From: Baptiste LENIAU <baptiste.leniau@subatech.in2p3.fr>
Date: Tue, 2 Sep 2014 16:43:03 +0000
Subject: [PATCH] more text

git-svn-id: svn+ssh://svn.in2p3.fr/class@370 0e7d625b-0364-4367-a6be-d5be4a48d228
---
 documentation/USEGUIDE.tex | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/documentation/USEGUIDE.tex b/documentation/USEGUIDE.tex
index fa1c44241..256d66f00 100755
--- a/documentation/USEGUIDE.tex
+++ b/documentation/USEGUIDE.tex
@@ -978,18 +978,30 @@ At the moment, there is two Irradiation Model available. The two solvers differs
 \begin{center}
 \begin{minipage}{\textwidth}
 \begin{lstlisting}
-
+#include "CLASSHeaders.hxx"
+#include "Irradiation/IM_RK4.hxx"
+//#include "Irradiation/IM_Matrix.hxx"
+..
+using namespace std;
+int main()
+{
+//...
+	IM_RK4* Solver = new IM_RK4(LogObject); // or new IM_RK4(); // uses a default logfile
+//	IM_Matrix* Solver = new IM_Matrix(LogObject); // or new IM_Matrix(); //uses default logfile
+	PhysicModels* PHYMOD = new PhysicModels(XSMOX, EQMLINPWRMOX, Solver);
+//...	
+}
 \end{lstlisting}
 \end{minipage} 
 \end{center}
-
+LogObject is a  CLASSLogger object (see section~\ref{sec:logclass}).
 %%%%%%%%%%%%%%%%%%%%%%%%%
 %% CHAPTER :	CLASSGUI
 %%%%%%%%%%%%%%%%%%%%%%%%%
 \part{CLASSGui : The results viewer}
 
-
-
+\subsection{How to build an Irradiation Model}
+The strength of CLASS is to allow the user to build his own physic models, this section explains how to build a new Bateman solver (Irradiation Model) and to incorporate it into CLASS.
 
 
 
-- 
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