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64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
//##################################################################################################
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//
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// Custom Visualization Core library
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// Copyright (C) 2011-2012 Ceetron AS
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//
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// This library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>>
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// for more details.
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//
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//##################################################################################################
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#pragma once
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#include "cvfArray.h"
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#include <map>
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namespace cvf {
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//==================================================================================================
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//
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// Extract mesh from triangles with a key per triangle. Mesh edges will not be produced between
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// triangles with the same key.
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//
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//==================================================================================================
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class TriangleMeshEdgeExtractor
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{
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public:
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TriangleMeshEdgeExtractor();
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void addTriangles(const UIntArray& indices, const UIntArray& triangleKeys);
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ref<UIntArray> lineIndices() const;
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private:
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std::map<int64, uint> m_edgeMap;
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inline int64 edgeKey(uint v1, uint v2)
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{
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if (v1 < v2)
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{
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int64 key = v2;
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key <<= 32;
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return key + v1;
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}
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int64 key = v1;
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key <<= 32;
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return key + v2;
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}
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void addEdge(uint v1, uint v2, uint key);
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};
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}
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