diff --git a/report/chapters/schedule.tex b/report/chapters/schedule.tex
index b4b947b..a3081a1 100644
--- a/report/chapters/schedule.tex
+++ b/report/chapters/schedule.tex
@@ -8,7 +8,7 @@
 	We spent our first week on the project management, like doing this schedule. \\
 	At the beginning we did a detailed schedule for the first part of the project, but not for the second part of the project. We just assigned 2 weeks and half to the meshing, and one week to the animation.
 	
-\begin{figure}[h!]
+\begin{figure}[H]
    \begin{center}
    \includegraphics[scale=0.5]{img/initialSchedule}
    \caption{\label{initialSchedule} Initial Schedule}
@@ -21,7 +21,7 @@
 	The integration with the other group was abandoned, as you can see.
 	We also decided to finally start the report before finishing the second part.
 
-\begin{figure}[h!]
+\begin{figure}[H]
    \begin{center}
    \includegraphics[scale=0.5]{img/finalSchedule}
    \caption{\label{finalSchedule} Final Schedule}
diff --git a/report/img/caractericticCircle.png b/report/img/characteristicCircle.png
similarity index 100%
rename from report/img/caractericticCircle.png
rename to report/img/characteristicCircle.png
diff --git a/report/subsections/circles.tex b/report/subsections/circles.tex
index 6020932..415627a 100644
--- a/report/subsections/circles.tex
+++ b/report/subsections/circles.tex
@@ -1 +1,14 @@
-\subsection{Circles}
\ No newline at end of file
+\subsection{Regular mesh}
+
+	At the beginning of this part we have 3D splines. We sample this splines and calculate the characteristic circle associated to each sampled point. Then we match the points between successive circles and use a triangular mesh.
+
+\paragraph{Characteristic circles computation}
+
+We take a point sampled on the spline. It gives us information about the sphere located on this point : C(t) the sphere center coordinates and r(t) its radius. We also have their derivatives : C'(t) and r'(t).
+
+\begin{figure}[H]
+   \begin{center}
+   \includegraphics[scale=0.5]{img/characteristicCircle}
+   \caption{\label{initialSchedule} Initial Schedule}
+   \end{center}
+\end{figure}
\ No newline at end of file