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diff --git a/source/blender/freestyle/intern/scene_graph/LineRep.cpp b/source/blender/freestyle/intern/scene_graph/LineRep.cpp
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+++ b/source/blender/freestyle/intern/scene_graph/LineRep.cpp
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+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program 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.
+ *
+ * This program 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 this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2010 Blender Foundation.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/freestyle/intern/scene_graph/LineRep.cpp
+ *  \ingroup freestyle
+ *  \brief Class to define the representation of 3D Line.
+ *  \author Stephane Grabli
+ *  \date 26/03/2002
+ */
+
+#include "LineRep.h"
+
+void LineRep::ComputeBBox()
+{
+	real XMax = _vertices.front()[0];
+	real YMax = _vertices.front()[1];
+	real ZMax = _vertices.front()[2];
+
+	real XMin = _vertices.front()[0];
+	real YMin = _vertices.front()[1];
+	real ZMin = _vertices.front()[2];
+
+	// parse all the coordinates to find 
+	// the XMax, YMax, ZMax
+	vector<Vec3r>::iterator v;
+	for (v = _vertices.begin(); v != _vertices.end(); ++v) {
+		// X
+		if ((*v)[0] > XMax)
+			XMax = (*v)[0];
+		if ((*v)[0] < XMin)
+			XMin = (*v)[0];
+
+		// Y
+		if ((*v)[1] > YMax)
+			YMax = (*v)[1];
+		if ((*v)[1] < YMin)
+			YMin = (*v)[1];
+
+		// Z
+		if ((*v)[2] > ZMax)
+			ZMax = (*v)[2];
+		if ((*v)[2] < ZMin)
+			ZMin = (*v)[2];
+	}
+
+	setBBox(BBox<Vec3r>(Vec3r(XMin, YMin, ZMin), Vec3r(XMax, YMax, ZMax)));
+}