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// Geometric Tools, LLC
// Copyright (c) 1998-2014
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 5.0.0 (2010/01/01)
#ifndef CREATEENVELOPE_H
#define CREATEENVELOPE_H
#include "Rational.h"
#include "Wm5Vector2.h"
using namespace Wm5;
class CreateEnvelope
{
public:
CreateEnvelope (int numVertices, const Vector2f* vertices,
int numIndices, const int* indices, int& numEnvelopeVertices,
Vector2f*& envelopeVertices);
private:
typedef std::map<RScalar,RPoint2> EdgeMap;
void InsertParameter (EdgeMap& edgeMap, const RScalar& t);
void UpdateEdges (EdgeMap& edgeMap0, EdgeMap& edgeMap1);
void UpdateAllEdges (int numEdges, EdgeMap** edgeMaps);
static const RScalar ZERO;
static const RScalar ONE;
};
#endif
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