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81 lines
2.9 KiB
C++
81 lines
2.9 KiB
C++
//##################################################################################################
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//
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// Custom Visualization Core library
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// Copyright (C) 2011-2013 Ceetron AS
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//
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// This library may be used under the terms of either the GNU General Public License or
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// the GNU Lesser General Public License as follows:
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//
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// GNU General Public License Usage
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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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// GNU Lesser General Public License Usage
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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 Lesser General Public License as published by
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// the Free Software Foundation; either version 2.1 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 Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.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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//
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//
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//==================================================================================================
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class OutlineEdgeExtractor
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{
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public:
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OutlineEdgeExtractor(double creaseAngle, const Vec3fValueArray& vertexArray);
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public:
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void addPrimitives(uint verticesPerPrimitive, const uint* indices, size_t indexCount);
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void addPrimitives(uint verticesPerPrimitive, const UIntArray& indices);
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void addFaceList(const UIntArray& faceList);
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ref<UIntArray> lineIndices() const;
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const std::vector<Vec3f>& faceNormals(); // Surface normals for the faces, normalized
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private:
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Vec3f computeFaceNormal(const uint* faceVertexIndices, uint numVerticesInFace) const;
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bool isFaceAngleAboveThreshold(size_t faceIdx1, size_t faceIdx2) const;
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private:
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double m_creaseAngle; // Threshold crease angle in radians
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const Vec3fValueArray& m_vertexArray;
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std::map<int64, size_t> m_edgeToFaceIndexMap;
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std::vector<Vec3f> m_faceNormals; // Surface normals for the faces, normalized
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};
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}
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