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Diffstat (limited to 'source/blender/freestyle/intern/geometry/normal_cycle.cpp')
-rw-r--r--source/blender/freestyle/intern/geometry/normal_cycle.cpp169
1 files changed, 91 insertions, 78 deletions
diff --git a/source/blender/freestyle/intern/geometry/normal_cycle.cpp b/source/blender/freestyle/intern/geometry/normal_cycle.cpp
index 3a697d54731..2f0aa268c9f 100644
--- a/source/blender/freestyle/intern/geometry/normal_cycle.cpp
+++ b/source/blender/freestyle/intern/geometry/normal_cycle.cpp
@@ -1,87 +1,100 @@
+/*
+ * ***** 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.
+ *
+ * This Code is Copyright (C) 2010 Blender Foundation.
+ * All rights reserved.
+ *
+ * The Original Code is:
+ * OGF/Graphite: Geometry and Graphics Programming Library + Utilities
+ * Copyright (C) 2000 Bruno Levy
+ * Contact: Bruno Levy
+ * levy@loria.fr
+ * ISA Project
+ * LORIA, INRIA Lorraine,
+ * Campus Scientifique, BP 239
+ * 54506 VANDOEUVRE LES NANCY CEDEX
+ * FRANCE
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
-//
-// Copyright (C) : Please refer to the COPYRIGHT file distributed
-// with this source distribution.
-//
-// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-//
-///////////////////////////////////////////////////////////////////////////////
-#include "normal_cycle.h"
-#include "matrix_util.h"
+/** \file blender/freestyle/intern/geometry/normal_cycle.cpp
+ * \ingroup freestyle
+ * \author Bruno Levy
+ */
+#include "matrix_util.h"
+#include "normal_cycle.h"
namespace OGF {
//_________________________________________________________
-
-
- NormalCycle::NormalCycle() {
- }
-
- void NormalCycle::begin() {
- M_[0] = M_[1] = M_[2] = M_[3] = M_[4] = M_[5] = 0 ;
- }
-
- void NormalCycle::end() {
-
- double eigen_vectors[9] ;
- MatrixUtil::semi_definite_symmetric_eigen(M_, 3, eigen_vectors, eigen_value_) ;
-
- axis_[0] = Vec3r(
- eigen_vectors[0], eigen_vectors[1], eigen_vectors[2]
- ) ;
-
- axis_[1] = Vec3r(
- eigen_vectors[3], eigen_vectors[4], eigen_vectors[5]
- ) ;
-
- axis_[2] = Vec3r(
- eigen_vectors[6], eigen_vectors[7], eigen_vectors[8]
- ) ;
-
- // Normalize the eigen vectors
-
- for(int i=0; i<3; i++) {
- axis_[i].normalize() ;
- }
-
- // Sort the eigen vectors
-
- i_[0] = 0 ;
- i_[1] = 1 ;
- i_[2] = 2 ;
-
- double l0 = ::fabs(eigen_value_[0]) ;
- double l1 = ::fabs(eigen_value_[1]) ;
- double l2 = ::fabs(eigen_value_[2]) ;
-
- if(l1 > l0) {
- ogf_swap(l0 , l1 ) ;
- ogf_swap(i_[0], i_[1]) ;
- }
- if(l2 > l1) {
- ogf_swap(l1 , l2 ) ;
- ogf_swap(i_[1], i_[2]) ;
- }
- if(l1 > l0) {
- ogf_swap(l0 , l1 ) ;
- ogf_swap(i_[0],i_[1]) ;
- }
-
- }
-//_________________________________________________________
+NormalCycle::NormalCycle()
+{
}
+
+void NormalCycle::begin()
+{
+ M_[0] = M_[1] = M_[2] = M_[3] = M_[4] = M_[5] = 0;
+}
+
+void NormalCycle::end()
+{
+ double eigen_vectors[9];
+ MatrixUtil::semi_definite_symmetric_eigen(M_, 3, eigen_vectors, eigen_value_);
+
+ axis_[0] = Vec3r(eigen_vectors[0], eigen_vectors[1], eigen_vectors[2]);
+
+ axis_[1] = Vec3r(eigen_vectors[3], eigen_vectors[4], eigen_vectors[5]);
+
+ axis_[2] = Vec3r(eigen_vectors[6], eigen_vectors[7], eigen_vectors[8]);
+
+ // Normalize the eigen vectors
+ for (int i = 0; i < 3; i++) {
+ axis_[i].normalize();
+ }
+
+ // Sort the eigen vectors
+ i_[0] = 0;
+ i_[1] = 1;
+ i_[2] = 2;
+
+ double l0 = ::fabs(eigen_value_[0]);
+ double l1 = ::fabs(eigen_value_[1]);
+ double l2 = ::fabs(eigen_value_[2]);
+
+ if (l1 > l0) {
+ ogf_swap(l0 , l1 );
+ ogf_swap(i_[0], i_[1]);
+ }
+ if (l2 > l1) {
+ ogf_swap(l1 , l2 );
+ ogf_swap(i_[1], i_[2]);
+ }
+ if (l1 > l0) {
+ ogf_swap(l0 , l1 );
+ ogf_swap(i_[0], i_[1]);
+ }
+}
+
+//_________________________________________________________
+
+} // OGF namespace