diff --git a/geometry/quad.cpp b/geometry/quad.cpp
index 2708091..f1d74b6 100644
--- a/geometry/quad.cpp
+++ b/geometry/quad.cpp
@@ -54,6 +54,19 @@ Quad Quad::makeParallelogram() {
     return Quad(c[0],c[1],c[2],c[3]);
 }
 
+float Quad::length(Cardinal cn) {
+    if(cn == N)
+        return Segment(c[NW],c[NE]).length();
+    else if(cn == S)
+        return Segment(c[SW],c[SE]).length();
+    else if(cn == E)
+        return Segment(c[NE],c[SE]).length();
+    else if(cn == W)
+        return Segment(c[SW],c[NW]).length();
+
+    return 0;
+}
+
 float Quad::minLengthNS() {
 	return std::min(
 		Segment(c[NW],c[NE]).length(),
diff --git a/geometry/quad.hh b/geometry/quad.hh
index 2514a7e..37d1ca0 100644
--- a/geometry/quad.hh
+++ b/geometry/quad.hh
@@ -27,6 +27,7 @@ class Quad {
 	Quad inset(Cardinal side, float offset) const;
 	Quad insetNESW(float offsetN, float offsetE, float offsetS, float offsetW) const;
 	Quad insetNESW(float offset) const;
+	float length(Cardinal c);
 	float minLengthNS();
 	float minLengthEW();
 	float maxLengthNS();
diff --git a/rules/batiment/batimentquadblock.cpp b/rules/batiment/batimentquadblock.cpp
index e5dec12..5e6d8d7 100644
--- a/rules/batiment/batimentquadblock.cpp
+++ b/rules/batiment/batimentquadblock.cpp
@@ -9,6 +9,17 @@ void BatimentQuadBlock::getBoundingBoxPoints() {
 	addBBPoints(c + Vertex(0,0,height)); // TODO
 }
 
+bool BatimentQuadBlock::split() {
+    Quad me = c;
+    Quad ms = c;
+    Quad mw = c;
+    Quad mn = c;
+
+    me[NW] = me[NE] + ((me[NW] - me[NW]) / me.length(N))*150;
+    //TODO les autres côtés.
+    return false;
+}
+
 void BatimentQuadBlock::triangulation() {
     addGPUOcto(c, c + Vertex(0,0,height), 0xF1, 0xE0, 0xE0);
 }
diff --git a/rules/batiment/batimentquadblock.hh b/rules/batiment/batimentquadblock.hh
index c73e639..e1e9cc9 100644
--- a/rules/batiment/batimentquadblock.hh
+++ b/rules/batiment/batimentquadblock.hh
@@ -11,6 +11,7 @@ class BatimentQuadBlock : public Chose {
 
     public :
 	BatimentQuadBlock(Quad c, int height);
+	virtual bool split();
 	virtual void triangulation();
 	virtual void getBoundingBoxPoints();
 };