Equalizer  1.2.1
eqPly/vertexData.h
00001 
00002 /* Copyright (c) 2007, Tobias Wolf <twolf@access.unizh.ch>
00003  *               2009, Stefan Eilemann <eile@equalizergraphics.com>
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions are met:
00007  *
00008  * - Redistributions of source code must retain the above copyright notice, this
00009  *   list of conditions and the following disclaimer.
00010  * - Redistributions in binary form must reproduce the above copyright notice,
00011  *   this list of conditions and the following disclaimer in the documentation
00012  *   and/or other materials provided with the distribution.
00013  * - Neither the name of Eyescale Software GmbH nor the names of its
00014  *   contributors may be used to endorse or promote products derived from this
00015  *   software without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00018  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
00021  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00022  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00023  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00024  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00025  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00026  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00027  * POSSIBILITY OF SUCH DAMAGE.
00028 */
00029 
00030 
00031 #ifndef MESH_VERTEXDATA_H
00032 #define MESH_VERTEXDATA_H
00033 
00034 
00035 #include "typedefs.h"
00036 #include <vector>
00037 
00038 
00039 // defined elsewhere
00040 struct PlyFile;
00041 
00042 namespace mesh 
00043 {
00044     /*  Holds the flat data and offers routines to read, scale and sort it.  */
00045     class VertexData
00046     {
00047     public:
00048         VertexData();
00049 
00050         bool readPlyFile( const std::string& file );
00051         void sort( const Index start, const Index length, const Axis axis );
00052         void scale( const float baseSize = 2.0f );
00053         void calculateNormals( const bool vertexNormals = true );
00054         void calculateBoundingBox();
00055         const BoundingBox& getBoundingBox() const { return _boundingBox; }
00056         Axis getLongestAxis( const size_t start, const size_t elements ) const;
00057 
00058         void useInvertedFaces() { _invertFaces = true; }
00059 
00060         std::vector< Vertex >   vertices;
00061         std::vector< Color >    colors;
00062         std::vector< Normal >   normals;
00063         std::vector< Triangle > triangles;
00064 
00065     private:
00066         void readVertices( PlyFile* file, const int nVertices, 
00067                            const bool readColors );
00068         void readTriangles( PlyFile* file, const int nFaces );
00069 
00070         BoundingBox _boundingBox;
00071         bool        _invertFaces;
00072     };
00073 }
00074 
00075 
00076 #endif // MESH_VERTEXDATA_H
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