# Visualization Library

A lightweight C++ OpenGL middleware for 2D/3D graphics

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# D:/VL/BuildSystem/VL_DISTRO/Visualization_Library_SDK/src/vlGraphics/DoubleVertexRemover.hpp

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    00001 /**************************************************************************************/
    00002 /*                                                                                    */
    00003 /*  Visualization Library                                                             */
    00004 /*  http://www.visualizationlibrary.com                                               */
    00005 /*                                                                                    */
    00006 /*  Copyright (c) 2005-2010, Michele Bosi                                             */
    00007 /*  All rights reserved.                                                              */
    00008 /*                                                                                    */
    00009 /*  Redistribution and use in source and binary forms, with or without modification,  */
    00010 /*  are permitted provided that the following conditions are met:                     */
    00011 /*                                                                                    */
    00012 /*  - Redistributions of source code must retain the above copyright notice, this     */
    00013 /*  list of conditions and the following disclaimer.                                  */
    00014 /*                                                                                    */
    00015 /*  - Redistributions in binary form must reproduce the above copyright notice, this  */
    00016 /*  list of conditions and the following disclaimer in the documentation and/or       */
    00017 /*  other materials provided with the distribution.                                   */
    00018 /*                                                                                    */
    00019 /*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND   */
    00020 /*  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED     */
    00021 /*  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE            */
    00022 /*  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR  */
    00023 /*  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES    */
    00024 /*  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;      */
    00025 /*  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON    */
    00026 /*  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT           */
    00027 /*  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS     */
    00028 /*  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.                      */
    00029 /*                                                                                    */
    00030 /**************************************************************************************/
    00031
    00032 #ifndef DoubleVertexRemover_INCLUDE_ONCE
    00033 #define DoubleVertexRemover_INCLUDE_ONCE
    00034
    00035 #include <vlGraphics/Geometry.hpp>
    00036 #include <vector>
    00037
    00038 namespace vl
    00039 {
    00040   //-----------------------------------------------------------------------------
    00041   // VertexMapper
    00042   //-----------------------------------------------------------------------------
    00044   class VLGRAPHICS_EXPORT VertexMapper: public Object
    00045   {
    00046   public:
    00047     virtual const char* className() { return "vl::VertexMapper"; }
    00052     ref<ArrayAbstract> regenerate(ArrayAbstract* data, const std::vector<size_t>& map_new_to_old) const;
    00053   private:
    00054     template<class T>
    00055     ref<ArrayAbstract> regenerateT(ArrayAbstract* data, const std::vector<size_t>& map_new_to_old) const;
    00056   };
    00057   //-----------------------------------------------------------------------------
    00058   // DoubleVertexRemover
    00059   //-----------------------------------------------------------------------------
    00062   class VLGRAPHICS_EXPORT DoubleVertexRemover: public VertexMapper
    00063   {
    00064   private:
    00065     class CompareVertex
    00066     {
    00067     public:
    00068       CompareVertex(const Geometry* geom)
    00069       {
    00070         if (geom->vertexArray())
    00071           mAttribs.push_back(geom->vertexArray());
    00072         if (geom->normalArray())
    00073           mAttribs.push_back(geom->normalArray());
    00074         if (geom->colorArray())
    00075           mAttribs.push_back(geom->colorArray());
    00076         if (geom->secondaryColorArray())
    00077           mAttribs.push_back(geom->secondaryColorArray());
    00078         if (geom->fogCoordArray())
    00079           mAttribs.push_back(geom->fogCoordArray());
    00080         for(int i=0; i<VL_MAX_TEXTURE_UNITS; ++i)
    00081           if (geom->texCoordArray(i))
    00082             mAttribs.push_back(geom->texCoordArray(i));
    00083         for(int i=0; i<geom->vertexAttribArrays()->size(); ++i)
    00084           mAttribs.push_back(geom->vertexAttribArrays()->at(i)->data());
    00085       }
    00086
    00087       bool operator()(unsigned int a, unsigned int b) const
    00088       {
    00089         // less(a,b);
    00090         for(unsigned i=0; i<mAttribs.size(); ++i)
    00091         {
    00092           int val = mAttribs[i]->compare(a,b);
    00093           if (val != 0)
    00094             return val < 0;
    00095         }
    00096         return false;
    00097       }
    00098
    00099       bool less(unsigned int a, unsigned int b) const
    00100       {
    00101         for(unsigned i=0; i<mAttribs.size(); ++i)
    00102         {
    00103           int val = mAttribs[i]->compare(a,b);
    00104           if (val != 0)
    00105             return val < 0;
    00106         }
    00107         return false;
    00108       }
    00109
    00110       bool equals(unsigned int a, unsigned int b) const
    00111       {
    00112         for(unsigned i=0; i<mAttribs.size(); ++i)
    00113         {
    00114           if (mAttribs[i]->compare(a,b) != 0)
    00115             return false;
    00116         }
    00117         return true;
    00118       }
    00119
    00120     protected:
    00121       std::vector< const ArrayAbstract* > mAttribs;
    00122     };
    00123
    00124   public:
    00125     virtual const char* className() { return "vl::DoubleVertexRemover"; }
    00126     DoubleVertexRemover() {}
    00127     void removeDoubles(Geometry* geom);
    00128     const std::vector<size_t>& mapNewToOld() const { return mMapNewToOld; }
    00129     const std::vector<size_t>& mapOldToNew() const { return mMapOldToNew; }
    00130
    00131   protected:
    00132     std::vector<size_t> mMapNewToOld;
    00133     std::vector<size_t> mMapOldToNew;
    00134   };
    00135 }
    00136
    00137 #endif

Visualization Library v2011.05.1142 Reference Documentation
Copyright 2005-2011 Michele Bosi. All rights reserved.
Updated on Thu May 26 2011 22:51:23.
Permission is granted to use this page to write and publish articles regarding Visualization Library.