diff --git a/editor/editorcommands.cpp b/editor/editorcommands.cpp
index 0b4db7af5..1af1827ed 100644
--- a/editor/editorcommands.cpp
+++ b/editor/editorcommands.cpp
@@ -297,3 +297,38 @@ void ChangeNamesCommand::undo() {
 void ChangeNamesCommand::redo() {
 	element -> setNames(names_after);
 }
+
+/**
+	Constructeur
+	@param element_scene Element edite
+	@param before Orientations avant changement
+	@param after Orientationss apres changement
+	@param parent QUndoCommand parent
+*/
+ChangeOrientationsCommand::ChangeOrientationsCommand(
+	ElementScene *element_scene,
+	const OrientationSet &before,
+	const OrientationSet &after,
+	QUndoCommand *parent
+) :
+	QUndoCommand(QObject::tr("modification orientations"), parent),
+	ori_before(before),
+	ori_after(after),
+	element(element_scene)
+{
+}
+
+/// Destructeur
+ChangeOrientationsCommand::~ChangeOrientationsCommand() {
+}
+
+/// Annule le changement
+void ChangeOrientationsCommand::undo() {
+	element -> setOrientations(ori_before);
+}
+
+/// Refait le changement
+void ChangeOrientationsCommand::redo() {
+	element -> setOrientations(ori_after);
+}
+
diff --git a/editor/editorcommands.h b/editor/editorcommands.h
index d5401af73..1a5a7ee82 100644
--- a/editor/editorcommands.h
+++ b/editor/editorcommands.h
@@ -190,7 +190,32 @@ class ChangeNamesCommand : public QUndoCommand {
 	NamesList names_before;
 	/// Liste des noms apres changement
 	NamesList names_after;
-	/// scene sur laquelle se produisent les actions
+	/// Element edite auquel il faut appliquer les modifications
+	ElementScene *element;
+};
+
+/**
+	Cette classe represente l'action de changer les noms d'un element
+*/
+class ChangeOrientationsCommand : public QUndoCommand {
+	// constructeurs, destructeur
+	public:
+	ChangeOrientationsCommand(ElementScene *, const OrientationSet &, const OrientationSet &, QUndoCommand * = 0);
+	virtual ~ChangeOrientationsCommand();
+	private:
+	ChangeOrientationsCommand(const ChangeOrientationsCommand &);
+	
+	// methodes
+	virtual void undo();
+	virtual void redo();
+	
+	// attributs
+	private:
+	/// Orientations avant changement
+	OrientationSet ori_before;
+	/// Orientations apres changement
+	OrientationSet ori_after;
+	/// Element edite auquel il faut appliquer les modifications
 	ElementScene *element;
 };
 #endif
diff --git a/editor/elementscene.cpp b/editor/elementscene.cpp
index c517f89d0..d02a26e7d 100644
--- a/editor/elementscene.cpp
+++ b/editor/elementscene.cpp
@@ -487,7 +487,12 @@ void ElementScene::slot_editOrientations() {
 	connect(dialog_buttons, SIGNAL(rejected()),    &dialog_ori, SLOT(reject()));
 	
 	// lance le dialogue
-	if (dialog_ori.exec() == QDialog::Accepted) ori = ori_widget -> orientationSet();
+	if (dialog_ori.exec() == QDialog::Accepted) {
+		OrientationSet new_ori = ori_widget -> orientationSet();
+		if (new_ori != ori) {
+			undoStack().push(new ChangeOrientationsCommand(this, ori, new_ori));
+		}
+	}
 }
 
 void ElementScene::slot_editNames() {
diff --git a/orientationset.cpp b/orientationset.cpp
index 4eb5c322a..aed5b7adf 100644
--- a/orientationset.cpp
+++ b/orientationset.cpp
@@ -131,6 +131,20 @@ const OrientationSet OrientationSet::operator--() {
 	return(*this);
 }
 
+bool OrientationSet::operator==(const OrientationSet &os) const {
+	if (north_ori   != os.north_ori)   return(false);
+	if (east_ori    != os.east_ori)    return(false);
+	if (south_ori   != os.south_ori)   return(false);
+	if (west_ori    != os.west_ori)    return(false);
+	if (default_ori != os.default_ori) return(false);
+	if (current_ori != os.current_ori) return(false);
+	return(true);
+}
+
+bool OrientationSet::operator!=(const OrientationSet &os) const {
+	return(!(this -> operator==(os)));
+}
+
 bool OrientationSet::fromString(const QString &str) {
 	QRegExp osv("^([dyn])([dyn])([dyn])([dyn])$");	// osv : Orientation String Validator
 	if (osv.indexIn(str) == -1) return(false);
diff --git a/orientationset.h b/orientationset.h
index 94ddc43e6..5116c0d6f 100644
--- a/orientationset.h
+++ b/orientationset.h
@@ -40,6 +40,8 @@ class OrientationSet {
 	const OrientationSet operator--(int);
 	const OrientationSet operator++();
 	const OrientationSet operator--();
+	bool operator==(const OrientationSet &) const;
+	bool operator!=(const OrientationSet &) const;
 	bool fromString(const QString &);
 	QString toString() const;
 };