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diff --git a/src/2geom/basic-intersection.h b/src/2geom/basic-intersection.h
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+/** @file
+ * @brief Basic intersection routines
+ *//*
+ * Authors:
+ *   Nathan Hurst <njh@njhurst.com>
+ *   Marco Cecchetti <mrcekets at gmail.com>
+ *   Jean-François Barraud <jf.barraud@gmail.com>
+ * 
+ * Copyright 2008-2009 Authors
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ */
+
+#ifndef LIB2GEOM_SEEN_BASIC_INTERSECTION_H
+#define LIB2GEOM_SEEN_BASIC_INTERSECTION_H
+
+#include <2geom/point.h>
+#include <2geom/bezier.h>
+#include <2geom/sbasis.h>
+#include <2geom/d2.h>
+
+#include <vector>
+#include <utility>
+
+#define USE_RECURSIVE_INTERSECTOR 0
+
+
+namespace Geom {
+
+void find_intersections(std::vector<std::pair<double, double> > &xs,
+                        D2<Bezier> const &A,
+                        D2<Bezier> const &B,
+                        double precision = EPSILON);
+
+void find_intersections(std::vector<std::pair<double, double> > &xs,
+                        D2<SBasis> const &A,
+                        D2<SBasis> const &B,
+                        double precision = EPSILON);
+
+void find_intersections(std::vector< std::pair<double, double> > &xs,
+                        std::vector<Point> const &A,
+                        std::vector<Point> const &B,
+                        double precision = EPSILON);
+
+void find_self_intersections(std::vector<std::pair<double, double> > &xs,
+                             D2<SBasis> const &A,
+                             double precision = EPSILON);
+
+void find_self_intersections(std::vector<std::pair<double, double> > &xs,
+                             D2<Bezier> const &A,
+                             double precision = EPSILON);
+
+/*
+ * find_intersection
+ *
+ *  input: A, B       - set of control points of two Bezier curve
+ *  input: precision  - required precision of computation
+ *  output: xs        - set of pairs of parameter values
+ *                      at which crossing happens
+ *
+ *  This routine is based on the Bezier Clipping Algorithm,
+ *  see: Sederberg, Nishita, 1990 - Curve intersection using Bezier clipping
+ */
+void find_intersections_bezier_clipping (std::vector< std::pair<double, double> > & xs,
+                         std::vector<Point> const& A,
+                         std::vector<Point> const& B,
+                         double precision = EPSILON);
+//#endif
+
+void subdivide(D2<Bezier> const &a,
+               D2<Bezier> const &b,
+               std::vector< std::pair<double, double> > const &xs,
+               std::vector< D2<Bezier> > &av,
+               std::vector< D2<Bezier> > &bv);
+
+/*
+ * find_collinear_normal
+ *
+ *  input: A, B       - set of control points of two Bezier curve
+ *  input: precision  - required precision of computation
+ *  output: xs        - set of pairs of parameter values
+ *                      at which there are collinear normals
+ *
+ *  This routine is based on the Bezier Clipping Algorithm,
+ *  see: Sederberg, Nishita, 1990 - Curve intersection using Bezier clipping
+ */
+void find_collinear_normal (std::vector< std::pair<double, double> >& xs,
+                            std::vector<Point> const& A,
+                            std::vector<Point> const& B,
+                            double precision = EPSILON);
+
+void polish_intersections(std::vector<std::pair<double, double> > &xs, 
+                          D2<SBasis> const &A,
+                          D2<SBasis> const &B);
+
+
+/**
+ * Compute the Hausdorf distance from A to B only.
+ */
+double hausdorfl(D2<SBasis>& A, D2<SBasis> const &B,
+                 double m_precision,
+                 double *a_t=NULL, double *b_t=NULL);
+
+/** 
+ * Compute the symmetric Hausdorf distance.
+ */
+double hausdorf(D2<SBasis> &A, D2<SBasis> const &B,
+                double m_precision,
+                double *a_t=NULL, double *b_t=NULL);
+
+/**
+ * Check if two line segments intersect. If they are collinear, the result is undefined.
+ * @return True if line segments AB and CD intersect
+ */
+bool non_collinear_segments_intersect(const Point &A, const Point &B, const Point &C, const Point &D);
+}
+
+#endif // !LIB2GEOM_SEEN_BASIC_INTERSECTION_H
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :