diff --git a/sources/reactphysics3d/mathematics/Segment3D.cpp b/sources/reactphysics3d/mathematics/Segment3D.cpp
new file mode 100644
index 00000000..e03e2405
--- /dev/null
+++ b/sources/reactphysics3d/mathematics/Segment3D.cpp
@@ -0,0 +1,46 @@
+/****************************************************************************
+* Copyright (C) 2009      Daniel Chappuis                                  *
+****************************************************************************
+* This file is part of ReactPhysics3D.                                     *
+*                                                                          *
+* ReactPhysics3D is free software: you can redistribute it and/or modify   *
+* it under the terms of the GNU Lesser General Public License as published *
+* by the Free Software Foundation, either version 3 of the License, or     *
+* (at your option) any later version.                                      *
+*                                                                          *
+* ReactPhysics3D is distributed in the hope that it will be useful,        *
+* but WITHOUT ANY WARRANTY; without even the implied warranty of           *
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the             *
+* GNU Lesser General Public License for more details.                      *
+*                                                                          *
+* You should have received a copy of the GNU Lesser General Public License *
+* along with ReactPhysics3D. If not, see <http://www.gnu.org/licenses/>.   *
+***************************************************************************/
+
+// Libraries
+#include "Segment3D.h"
+
+// Namespace
+using namespace reactphysics3d;
+
+// Constructor
+Segment3D::Segment3D() {
+
+}
+
+// Constructor with arguments
+Segment3D::Segment3D(Vector3D& pointA, Vector3D& pointB) {
+    this->pointA = pointA;
+    this->pointB = pointB;
+}
+
+// Copy-constructor
+Segment3D::Segment3D(const Segment3D& segment)
+          :pointA(segment.pointA), pointB(segment.pointB) {
+
+}
+
+// Destructor
+Segment3D::~Segment3D() {
+
+}
diff --git a/sources/reactphysics3d/mathematics/Segment3D.h b/sources/reactphysics3d/mathematics/Segment3D.h
new file mode 100644
index 00000000..79935d52
--- /dev/null
+++ b/sources/reactphysics3d/mathematics/Segment3D.h
@@ -0,0 +1,70 @@
+/****************************************************************************
+* Copyright (C) 2009      Daniel Chappuis                                  *
+****************************************************************************
+* This file is part of ReactPhysics3D.                                     *
+*                                                                          *
+* ReactPhysics3D is free software: you can redistribute it and/or modify   *
+* it under the terms of the GNU Lesser General Public License as published *
+* by the Free Software Foundation, either version 3 of the License, or     *
+* (at your option) any later version.                                      *
+*                                                                          *
+* ReactPhysics3D is distributed in the hope that it will be useful,        *
+* but WITHOUT ANY WARRANTY; without even the implied warranty of           *
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the             *
+* GNU Lesser General Public License for more details.                      *
+*                                                                          *
+* You should have received a copy of the GNU Lesser General Public License *
+* along with ReactPhysics3D. If not, see <http://www.gnu.org/licenses/>.   *
+***************************************************************************/
+
+#ifndef SEGMENT3D_H
+#define SEGMENT3D_H
+
+// Libraries
+#include "Vector3D.h"
+
+// ReactPhysics3D namespace
+namespace reactphysics3d {
+
+/*  -------------------------------------------------------------------
+    Class Segment3D :
+        This class represents a line segment in a 3D space. A segment is
+        described by two points A and B.
+    -------------------------------------------------------------------
+*/
+class Segment3D {
+    private :
+        Vector3D pointA;        // Point A of the line segment
+        Vector3D pointB;        // Point B of the line segment
+
+    public :
+        Segment3D();                                        // Constructor
+        Segment3D(Vector3D& pointA, Vector3D& pointB);      // Constructor with arguments
+        Segment3D(const Segment3D& segment);                // Copy-constructor
+        ~Segment3D();                                       // Destructor
+
+        Vector3D getPointA() const;                         // Return the point A
+        void setPointA(const Vector3D& pointA);             // Set the point A
+        Vector3D getPointB() const;                         // Return the point B
+        void setPointB(const Vector3D& pointB);             // Set the point B
+};
+
+inline Vector3D Segment3D::getPointA() const {
+    return pointA;
+}
+
+inline void Segment3D::setPointA(const Vector3D& pointA) {
+    this->pointA = pointA;
+}
+
+inline Vector3D Segment3D::getPointB() const {
+    return pointB;
+}
+
+inline void Segment3D::setPointB(const Vector3D& pointB) {
+    this->pointB = pointB;
+}
+
+} // End of the ReactPhysics3D namespace
+
+#endif