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diff --git a/polygon/poly2tri/sweep/cdt.cc b/polygon/poly2tri/sweep/cdt.cc
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+/* 
+ * Poly2Tri Copyright (c) 2009-2010, Poly2Tri Contributors
+ * http://code.google.com/p/poly2tri/
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice,
+ *   this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ *   this list of conditions and the following disclaimer in the documentation
+ *   and/or other materials provided with the distribution.
+ * * Neither the name of Poly2Tri nor the names of its contributors may be
+ *   used to endorse or promote products derived from this software without specific
+ *   prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "cdt.h"
+
+namespace p2t {
+
+CDT::CDT(std::vector<Point*> polyline)
+{
+  sweep_context_ = new SweepContext(polyline);
+  sweep_ = new Sweep;
+}
+
+void CDT::AddHole(std::vector<Point*> polyline)
+{
+  sweep_context_->AddHole(polyline);
+}
+
+void CDT::AddPoint(Point* point) {
+  sweep_context_->AddPoint(point);
+}
+
+void CDT::Triangulate()
+{
+  sweep_->Triangulate(*sweep_context_);
+}
+
+std::vector<p2t::Triangle*> CDT::GetTriangles()
+{
+  return sweep_context_->GetTriangles();
+}
+
+std::list<p2t::Triangle*> CDT::GetMap()
+{
+  return sweep_context_->GetMap();
+}
+
+CDT::~CDT()
+{
+  delete sweep_context_;
+  delete sweep_;
+}
+
+}
+