--- /dev/null
+// Copyright (C) 2006 Erik Dahlberg
+//
+// This file is part of LSystem3d.
+//
+// LSystem3D is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+//
+// LSystem3D 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with LSystem3D; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+
+
+
+#ifndef VECTOR_H
+#define VECTOR_H
+
+#include "coordinate.h"
+
+
+
+/**
+ * 3d vector
+ */
+class Vector : public Coordinate
+{
+public:
+ /**
+ * Constructor
+ * @param x the x-coordinate
+ * @param y the y-coordinate
+ * @param z the z-coordinate
+ */
+ Vector(double x = 0.0, double y = 1.0, double z = 0.0);
+
+ /**
+ * Destructor
+ */
+ ~Vector();
+
+ /**
+ * Rotate around another vector
+ * @param angle rotation angle
+ * @param vector arbitrary vector to rotate around
+ */
+ void rotate(double angle, Vector vector);
+
+ /**
+ * Normalize vector
+ */
+ void normalize();
+
+ /**
+ * Get scalar product of the vectors
+ * @param vector arbitrary vector
+ * @return the scalar product
+ */
+ double getScalarProduct(Vector vector);
+
+ /**
+ * Get cross product of the vectors
+ * @param vector arbitrary vector
+ * @return the cross product
+ */
+ Vector getCrossProduct(Vector vector);
+
+ /**
+ * Get angle between the vectors
+ * @param vector the second (normalized) vector
+ * @return the angle, in degrees
+ */
+ double getAngle(Vector vector);
+};
+
+
+
+#endif