import_off.h

Go to the documentation of this file.

/****************************************************************************
* VCGLib                                                            o o     *
* Visual and Computer Graphics Library                            o     o   *
*                                                                _   O  _   *
* Copyright(C) 2004                                                \/)\/    *
* Visual Computing Lab                                            /\/|      *
* ISTI - Italian National Research Council                           |      *
*                                                                    \      *
* All rights reserved.                                                      *
*                                                                           *
* This program is free software; you can redistribute it and/or modify      *
* it under the terms of the GNU General Public License as published by      *
* the Free Software Foundation; either version 2 of the License, or         *
* (at your option) any later version.                                       *
*                                                                           *
* This program is distributed in the hope that it will be useful,           *
* but WITHOUT ANY WARRANTY; without even the implied warranty of            *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             *
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt)          *
* for more details.                                                         *
*                                                                           *
****************************************************************************/
#ifndef __VCGLIB_IMPORT_OFF
#define __VCGLIB_IMPORT_OFF

#include <fstream>
#include<vcg/complex/algorithms/bitquad_support.h>
#include <wrap/io_trimesh/io_mask.h>
#include <wrap/io_trimesh/io_fan_tessellator.h>

namespace vcg {
namespace tri {
namespace io {

// /** \addtogroup  */
// /* @{ */
template<class MESH_TYPE>
class ImporterOFF
{
public:

  typedef typename MESH_TYPE::VertexType                        VertexType;
  typedef typename MESH_TYPE::VertexIterator    VertexIterator;
  typedef typename MESH_TYPE::VertexPointer             VertexPointer;
  typedef typename MESH_TYPE::FaceType                          FaceType;
  typedef typename MESH_TYPE::FaceIterator              FaceIterator;
  typedef typename MESH_TYPE::FacePointer                       FacePointer;
  typedef typename MESH_TYPE::CoordType                         CoordType;
  typedef typename MESH_TYPE::ScalarType                        ScalarType;

  // OFF codes
  enum OFFCodes {NoError=0, CantOpen, InvalidFile,
                 InvalidFile_MissingOFF,
                 UnsupportedFormat, ErrorNotTriangularFace,ErrorHighDimension,ErrorDegenerateFace};

  static const char* ErrorMsg(int message_code)
  {
    static const char* error_msg[] =
    {
      "No errors", "Can't open file", "Invalid file",
      "Invalid file: OFF file should have in the first line the OFF keyword as a first token",
      "Unsupported format", "Face with more than 3 vertices","File with high dimensional vertexes are not supported", "Error Degenerate Face with less than 3 vertices"                         };

    if(message_code>6 || message_code<0)
      return "Unknown error";
    else
      return error_msg[message_code];
  };

  static bool LoadMask(const char *filename, int &loadmask)
  {
    // To obtain the loading mask all the file must be parsed
    // to distinguish between per-vertex and per-face color attribute.
    loadmask=0;
    MESH_TYPE dummyMesh;
    return (Open(dummyMesh, filename, loadmask)==NoError);
  }

  static int Open(MESH_TYPE &mesh, const char *filename,CallBackPos *cb=0)
  {
    int loadmask;
    return Open(mesh,filename,loadmask,cb);
  }

  static int OpenMem(MESH_TYPE &mesh, const char *mem, size_t sz, int &loadmask,
                  CallBackPos *cb=0)
  {
    std::string str;
    str.append(mem,sz);
    std::istringstream strm(str);
    return OpenStream(mesh,strm,loadmask,cb);
  }

  static int Open(MESH_TYPE &mesh, const char *filename, int &loadmask,
                  CallBackPos *cb=0)
  {
    std::ifstream stream(filename);
    if (stream.fail())
      return CantOpen;
    return OpenStream(mesh,stream,loadmask,cb);
  }

    static int OpenStream(MESH_TYPE &mesh, std::istream &stream, int &loadmask,
                    CallBackPos *cb=0)
    {
    std::vector< std::string > tokens;
    TokenizeNextLine(stream, tokens);
    if(tokens.empty()) return InvalidFile_MissingOFF;

    bool isNormalDefined   = false;
    bool isColorDefined    = false;
    bool isTexCoordDefined = false;
    int dimension = 3;
    bool homogeneousComponents = false;


    /*
    [ST][C][N][4][n]OFF # Header keyword
    [Ndim]              # Space dimension of vertices, present only if nOFF
    NVertices  NFaces  NEdges   # NEdges not used or checked

    x[0]  y[0]  z[0]    # Vertices, possibly with normals, colors, and/or texture coordinates, in that order,  if the prefixes N, C, ST are present.
    # If 4OFF, each vertex has 4 components including a final homogeneous component.
    # If nOFF, each vertex has Ndim components.
    # If 4nOFF, each vertex has Ndim+1 components.
    ...
    x[NVertices-1]  y[NVertices-1]  z[NVertices-1]

    # Faces
    # Nv = # vertices on this face
    # v[0] ... v[Nv-1]: vertex indices
    #           in range 0..NVertices-1
    Nv  v[0] v[1] ... v[Nv-1]  colorspec
    ...
    # colorspec continues past v[Nv-1] to end-of-line; may be 0 to 4 numbers
    # nothing: default
    # integer: colormap index
    # 3 or 4 integers: RGB[A] values 0..255
    # 3 or 4 floats: RGB[A] values 0..1
    */
    std::string header = tokens[0];
    if (header.rfind("OFF") != std::basic_string<char>::npos)
    { // the OFF string is in the header go on parsing it.
      for (int u = static_cast<int>(header.rfind("OFF")-1); u>=0; u--)
      {
        if      (header[u] == 'C')                              isColorDefined = true;
        else if (header[u] == 'N')                              isNormalDefined = true;
        else if (u>0 && header[u-1] == 'S' && header[u] == 'T') isTexCoordDefined = true;
        else if (header[u] == '4')                              homogeneousComponents = true;
        else if (header[u] == 'n') return ErrorHighDimension;
      }
    }
    else return InvalidFile_MissingOFF;

    // If the file is slightly malformed and it has nvert and nface AFTER the OFF string instead of in the next line
    // we manage it here...
    if(tokens.size()==1) TokenizeNextLine(stream, tokens);
    else tokens.erase(tokens.begin(),tokens.begin()+1);

    // Update loading mask

    loadmask = Mask::IOM_VERTCOORD | Mask::IOM_FACEINDEX;

    if (isNormalDefined)                loadmask |= Mask::IOM_VERTNORMAL;
    if (isTexCoordDefined)      loadmask |= Mask::IOM_VERTTEXCOORD;
    if (isColorDefined)                 { loadmask |= Mask::IOM_VERTCOLOR;loadmask |= Mask::IOM_FACECOLOR;}


    //if(onlyMaskFlag) return NoError;


    mesh.Clear();

    // check on next 2 lines to detect corrupted files
    if(tokens.size() < 3)
      return InvalidFile;

    unsigned int nVertices, nFaces, nEdges;
    nVertices = atoi(tokens[0].c_str());
    nFaces    = atoi(tokens[1].c_str());
    nEdges    = atoi(tokens[2].c_str());

    // dimension is the space dimension of vertices => it must be three(!)
    if (dimension != 3)
      return UnsupportedFormat;

    if (homogeneousComponents)
      return UnsupportedFormat;

    // READ VERTICES

    VertexIterator v_iter = Allocator<MESH_TYPE>::AddVertices(mesh, nVertices);
    TokenizeNextLine(stream, tokens);
    size_t k = 0; // next token to read

    for (unsigned int i=0; i<nVertices; i++, v_iter++)
    {
      if (cb && (i%1000)==0)
        cb(i*50/nVertices, "Vertex Loading");

      // Read 3 vertex coordinates
      for (unsigned int j=0; j<3; j++)
      {
        // Go to next line when needed
        if (k == tokens.size())   // if EOL
        {
          TokenizeNextLine(stream, tokens);
          if (tokens.size() == 0) // if EOF
            return InvalidFile;
          k = 0;
        }

        // Read vertex coordinate
        (*v_iter).P()[j] = (ScalarType) atof(tokens[k].c_str());
        k++;
      }

      if (isNormalDefined)
      {
        // Read 3 normal coordinates
        for (unsigned int j=0; j<3; j++)
        {
          // Go to next line when needed
          if (k == tokens.size())   // if EOL
          {
            TokenizeNextLine(stream, tokens);
            if (tokens.size() == 0) // if EOF
              return InvalidFile;
            k = 0;
          }

          // Read normal coordinate
          (*v_iter).N()[j] = (ScalarType) atof(tokens[k].c_str());
          k++;
        }
      }

      // NOTE: It is assumed that colored vertex takes exactly one text line
      //       (otherwise it is impossible to parse color information since
      //        color components can vary)
      if (isColorDefined)
      {
        // The number of color components varies from 0 to 4.
        // The OFF format guaranties that there is 1 vertex per line.
        int nb_color_components = static_cast<int>(tokens.size())
            - static_cast<int>(k) /* tokens already parsed */
            - 2 * (isTexCoordDefined ? 1 : 0);

        if (nb_color_components < 0 || nb_color_components > 4)
          return InvalidFile;

        // set per-vertex color attribute
        if (nb_color_components > 0)
          loadmask |= Mask::IOM_VERTCOLOR;

        // Store color components
        if (tri::HasPerVertexColor(mesh))
        {
          // Read color components

          if (nb_color_components == 1)
          {
            // read color index
            (*v_iter).C().Import(ColorMap(atoi(tokens[k].c_str())));
          }
          else if (nb_color_components == 3)
          {
            // read RGB color
            if (tokens[k].find(".") == size_t(-1))// if it is a float there is a dot
            {
              // integers
              unsigned char r =
                  static_cast<unsigned char>(atoi(tokens[k].c_str()));
              unsigned char g =
                  static_cast<unsigned char>(atoi(tokens[k+1].c_str()));
              unsigned char b =
                  static_cast<unsigned char>(atoi(tokens[k+2].c_str()));

              vcg::Color4b color(r, g, b, 255);
              (*v_iter).C().Import(color);
            }
            else
            {
              // floats
              float r = static_cast<float>(atof(tokens[k].c_str()));
              float g = static_cast<float>(atof(tokens[k+1].c_str()));
              float b = static_cast<float>(atof(tokens[k+2].c_str()));

              vcg::Color4f color(r, g, b, 1.0);
              (*v_iter).C().Import(color);
            }
          }
          else if (nb_color_components == 4)
          {
            // read RGBA color
            if (tokens[k].find(".") == size_t(-1))
            {
              // integers
              unsigned char r =
                  static_cast<unsigned char>(atoi(tokens[k].c_str()));
              unsigned char g =
                  static_cast<unsigned char>(atoi(tokens[k+1].c_str()));
              unsigned char b =
                  static_cast<unsigned char>(atoi(tokens[k+2].c_str()));
              unsigned char a =
                  static_cast<unsigned char>(atoi(tokens[k+3].c_str()));

              Color4b color(r, g, b, a);
              (*v_iter).C().Import(color);
            }
            else
            {
              // floats
              float r = static_cast<float>(atof(tokens[k].c_str()));
              float g = static_cast<float>(atof(tokens[k+1].c_str()));
              float b = static_cast<float>(atof(tokens[k+2].c_str()));
              float a = static_cast<float>(atof(tokens[k+3].c_str()));

              vcg::Color4f color(r, g, b, a);
              (*v_iter).C().Import(color);
            }
          }
        }

        k += nb_color_components;
      }

      if (isTexCoordDefined)
      {
        for (unsigned int j=0; j<2; j++)
        {
          // Go to next line when needed
          if (k == tokens.size())   // if EOL
          {
            TokenizeNextLine(stream, tokens);
            if (tokens.size() == 0) // if EOF
              return InvalidFile;
            k = 0;
          }

          std::string str = tokens[k];
          k++;

          // Store texture coordinates
          if (tri::HasPerWedgeTexCoord(mesh))
          {
            //...TODO...
          }
        }
      }
    } // for i=...

    // READ FACES
    if(FaceType::HasPolyInfo())
    {
      for (unsigned int f=0; f < nFaces; f++)
      {
        if(cb && (f%1000)==0) cb(50+f*50/nFaces,"Face Loading");
        TokenizeNextLine(stream, tokens);
        int vert_per_face = atoi(tokens[0].c_str());
        std::vector<int> vInd(vert_per_face);
        k = 1;
        for (int j=0; j < vert_per_face; j++)
        {
          if (k == tokens.size())   // if EOL // Go to next line when needed
          {
            TokenizeNextLine(stream, tokens);
            if (tokens.size() == 0) return InvalidFile; // if EOF
            k = 0;
          }
          vInd[j] = atoi(tokens[k].c_str());
          k++;
        }
        if(vert_per_face==3)
          Allocator<MESH_TYPE>::AddFace(mesh, &mesh.vert[ vInd[0] ], &mesh.vert[ vInd[1] ], &mesh.vert[ vInd[2] ]);

        if(vert_per_face==4)
          Allocator<MESH_TYPE>::AddQuadFace(mesh, &mesh.vert[ vInd[0] ], &mesh.vert[ vInd[1] ], &mesh.vert[ vInd[2] ],&mesh.vert[ vInd[3] ]);

      }
    }
    else // Standard Triangular Mesh Loading
    {
      Allocator<MESH_TYPE>::AddFaces(mesh, nFaces);
      unsigned int f0=0;


      // Initial call to the QuadTriangulate with an empty vector to just reset the static set of existing diagonals
      std::vector<VertexPointer> qtmp;
      BitQuad<MESH_TYPE>::QuadTriangulate(qtmp);

      for (unsigned int f=0; f < nFaces; f++)
      {
        f0 = f;
        if (stream.fail())
          return InvalidFile;

        if(cb && (f%1000)==0)
          cb(50+f*50/nFaces,"Face Loading");

        TokenizeNextLine(stream, tokens);
        int vert_per_face = atoi(tokens[0].c_str());
        if(vert_per_face < 3)
          return ErrorDegenerateFace;
        k = 1;
        if (vert_per_face == 3)
        {
          for (int j = 0; j < 3; j++)
          {
            if (k == tokens.size())   // if EOL                 // Go to next line when needed
            {
              TokenizeNextLine(stream, tokens);
              if (tokens.size() == 0) return InvalidFile; // if EOF
              k = 0;
            }

            mesh.face[f].V(j) = &(mesh.vert[ atoi(tokens[k].c_str()) ]);
            k++;
          }
        }
        else
        {
          // The face must be triangulated
          unsigned int trigs = vert_per_face-3; // number of extra faces to add
          nFaces += trigs;
          Allocator<MESH_TYPE>::AddFaces(mesh, trigs);
          std::vector<int> vertIndices(vert_per_face);
          std::vector<vcg::Point3f > polygonVect(vert_per_face); // vec of polygon loops used for the triangulation of polygonal face
          for (int j=0; j < vert_per_face; j++)
          {
            if (k == tokens.size())   // if EOL // Go to next line when needed
            {
              TokenizeNextLine(stream, tokens);
              if (tokens.size() == 0) return InvalidFile; // if EOF
              k = 0;
            }
            vertIndices[j] = atoi(tokens[k].c_str());
            polygonVect[j].Import<ScalarType> (mesh.vert[ vertIndices[j] ].P());
            k++;
          }
          if(vert_per_face==4)
          {   // To well triangulate use the bitquad support function that reorders vertex for a simple fan
            std::vector<VertexPointer> q(4);
            for(int qqi=0;qqi<4;++qqi)
              q[qqi]=& mesh.vert[vertIndices[qqi]];
            BitQuad<MESH_TYPE>::QuadTriangulate(q);
            for(int qqi=0;qqi<4;++qqi)
              vertIndices[qqi] = q[qqi]- & mesh.vert[0];
            // build a two face fan
            for (int j=0; j<2; j++)
            {
              mesh.face[f+j].V(0) = &(mesh.vert[ vertIndices[0  ] ]);
              mesh.face[f+j].V(1) = &(mesh.vert[ vertIndices[1+j] ]);
              mesh.face[f+j].V(2) = &(mesh.vert[ vertIndices[2+j] ]);
              if (tri::HasPerFaceFlags(mesh)) {
                // tag internal polygonal edges as "faux"
                if (j>0) mesh.face[f+j].SetF(0);
                if (j<vert_per_face-3) mesh.face[f+j].SetF(2);
                loadmask |= Mask::IOM_BITPOLYGONAL;
              }
            }
          }
          else // standard fan triangulation (we hope the polygon is convex...)
          {
            std::vector<int> indexTriangulatedVect;
            //                              TessellatePlanarPolygon3(polygonVect,indexTriangulatedVect);
            std::vector< std::vector<Point3f> > loopVect;
            loopVect.push_back(polygonVect);
#ifdef __gl_h_
            //qDebug("OK: using opengl tessellation for a polygon of %i vertices",vertexesPerFace);
            vcg::glu_tesselator::tesselate<vcg::Point3f>(loopVect, indexTriangulatedVect);
#else
            //qDebug("Warning: using fan tessellation for a polygon of %i vertices",vertexesPerFace);
            tri::io::FanTessellator(loopVect, indexTriangulatedVect);
#endif
            for (size_t j=0; j<indexTriangulatedVect.size(); j+=3)
            {
              mesh.face[f+j/3].V(0) = &(mesh.vert[ vertIndices[ indexTriangulatedVect[j+0] ] ]);
              mesh.face[f+j/3].V(1) = &(mesh.vert[ vertIndices[ indexTriangulatedVect[j+1] ] ]);
              mesh.face[f+j/3].V(2) = &(mesh.vert[ vertIndices[ indexTriangulatedVect[j+2] ] ]);
              // To correctly set Faux edges we have to clear the faux bit for all the edges that do not correspond to consecutive vertices
              // Consecutivity is in the space of the index of the polygon.
              for(int qq=0;qq<3;++qq)
              {
                if( (indexTriangulatedVect[j+qq]+1)%vert_per_face == indexTriangulatedVect[j+(qq+1)%3])
                  mesh.face[f+j/3].ClearF(qq);
                else mesh.face[f+j/3].SetF(qq);
              }
            }
          }
          f+=trigs;
        }

        // NOTE: It is assumed that colored face takes exactly one text line
        //       (otherwise it is impossible to parse color information since
        //        color components can vary)
        size_t color_elements = tokens.size() - vert_per_face-1;
        isColorDefined |= (color_elements>0);
        if(isColorDefined) loadmask |= Mask::IOM_FACECOLOR;

        if( (color_elements>0)  && tri::HasPerFaceColor(mesh) )
        {


          // set per-face color attribute
          if (color_elements > 0)
            loadmask |= Mask::IOM_FACECOLOR;

          switch (color_elements)
          {
          case 0:
          {
            for ( ; f0<=f; f0++)
              mesh.face[f0].C().Import(vcg::Color4f(.666f, .666f, .666f, .666f));
            break;
          }
          case 1:
          {
            for ( ; f0<=f; f0++)
              mesh.face[f0].C().Import( ColorMap( atoi(tokens[vert_per_face+1].c_str()) ) );
            break;
          }
          case 3:
          {
            if (tokens[vert_per_face+1].find('.')==std::string::npos) // if there is a float there is a dot
            {
              Color4b cc(Color4b::White);
              cc[0] =  (unsigned char)atoi( tokens[vert_per_face+1].c_str() );
              cc[1] =  (unsigned char)atoi( tokens[vert_per_face+2].c_str() );
              cc[2] =  (unsigned char)atoi( tokens[vert_per_face+3].c_str() );
              for ( ; f0<=f; f0++)
                mesh.face[f0].C()=cc;
            }
            else
            {
              float color[3];
              color[0] = (float) atof( tokens[vert_per_face+1].c_str() );
              color[1] = (float) atof( tokens[vert_per_face+2].c_str() );
              color[2] = (float) atof( tokens[vert_per_face+3].c_str() );
              for ( ; f0<=f; f0++)
                mesh.face[f0].C().Import(vcg::Color4f(color[0], color[1], color[2], 1.0f));
            }
            break;
          }
          case 4:
          {
            if (tokens[vert_per_face+1].find('.')==std::string::npos) // if it is a float there is a dot
            {
              Color4b cc;
              cc[0] = (unsigned char) atoi(tokens[vert_per_face+1].c_str());
              cc[1] = (unsigned char) atoi(tokens[vert_per_face+2].c_str());
              cc[2] = (unsigned char) atoi(tokens[vert_per_face+3].c_str());
              cc[3] = (unsigned char) atoi(tokens[vert_per_face+4].c_str());
              for ( ; f0<=f; f0++)
                mesh.face[f0].C()=cc;
            }
            else
            {
              float color[4];
              color[0] = float( atof(tokens[vert_per_face+1].c_str()) );
              color[1] = float( atof(tokens[vert_per_face+2].c_str()) );
              color[2] = float( atof(tokens[vert_per_face+3].c_str()) );
              color[3] = float( atof(tokens[vert_per_face+4].c_str()) );
              for ( ; f0<=f; f0++)
                mesh.face[f0].C().Import(vcg::Color4f(color[0], color[1], color[2], color[3]));
            }
            break;
          }
          } //end switch
        } // end if (isColorDefined)
      } // end of for f=...
    }
    return NoError;

  } // end Open

protected:

  inline static void TokenizeNextLine(std::istream &stream, std::vector< std::string > &tokens)
  {
    std::string line;
    do
      std::getline(stream, line, '\n');
    while ((line[0] == '#' || line.length()==0 || line[0]=='\r' ) && (!stream.eof()));

    size_t from = 0;
    size_t to = 0;
    size_t length = line.size();
    tokens.clear();
    do
    {
      while (from!=length && (line[from]==' ' || line[from] == '\t'  || line[from] == '\r'))
        from++;
      if(from!=length)
      {
        to = from+1;
        while ( to!=length && (((line[to]!=' ') && (line[to] != '\t'))  || (line[to] == '\r')))
          to++;
        tokens.push_back(line.substr(from, to-from).c_str());
        from = to;
      }
    }
    while (from<length);
  } // end Tokenize

  static const vcg::Color4f ColorMap(int i)
  {
    static const float colorMap[148][4] =
    {
      { 1.0f,    1.0f,   1.0f,   1.0f    },
      { 1.0f,    1.0f,   1.0f,   1.0f    },
      { 1.0f,    1.0f,   1.0f,   1.0f    },
      { 1.0f,    1.0f,   1.0f,   1.0f    },
      { 1.0f,    1.0f,   1.0f,   1.0f    },
      { 1.0f,    1.0f,   1.0f,   1.0f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.2f,    0.2f,   0.2f,   0.2f    },
      { 0.9f,    0.9f,   0.9f,   0.9f    },
      { 0.1f,    0.1f,   0.1f,   0.1f    },
      { 0.1f,    0.1f,   0.1f,   0.1f    },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.9f,    0.9f,   0.9f,   0.9f    },
      { 0.2f,    0.2f,   0.2f,   0.2f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.75f, 0.75f,    0.75f,  0.75f },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.4f,    0.4f,   0.4f,   0.4f    },
      { 0.4f,    0.4f,   0.4f,   0.4f    },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.9f,    0.9f,   0.9f,   0.9f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.75f, 0.75f,    0.75f,  0.75f },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.4f,    0.4f,   0.4f,   0.4f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.4f,    0.4f,   0.4f,   0.4f    },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.9f,    0.9f,   0.9f,   0.9f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.75f, 0.75f,    0.75f,  0.75f },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.4f,    0.4f,   0.4f,   0.4f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.4f,    0.4f,   0.4f,   0.4f    },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.9f,    0.9f,   0.9f,   0.9f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.75f, 0.75f,    0.75f,  0.75f },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.4f,    0.4f,   0.4f,   0.4f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.4f,    0.4f,   0.4f,   0.4f    },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 1.0f,    1.0f,   1.0f,   1.0f    },
      { 1.0f,    1.0f,   1.0f,   1.0f    },
      { 1.0f,    1.0f,   1.0f,   1.0f    },
      { 1.0f,    1.0f,   1.0f,   1.0f    },
      { 1.0f,    1.0f,   1.0f,   1.0f    },
      { 1.0f,    1.0f,   1.0f,   1.0f    },
      { 0.05f, 0.05f,    0.05f,  0.05f },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.2f,    0.2f,   0.2f,   0.2f    },
      { 0.9f,    0.9f,   0.9f,   0.9f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.1f,    0.1f,   0.1f,   0.1f    },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.9f,    0.9f,   0.9f,   0.9f    },
      { 0.9f,    0.9f,   0.9f,   0.9f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.75f, 0.75f,    0.75f,  0.75f },
      { 0.75f, 0.75f,    0.75f,  0.75f },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.4f,    0.4f,   0.4f,   0.4f    },
      { 0.4f,    0.4f,   0.4f,   0.4f    },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.9f,    0.9f,   0.9f,   0.9f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.75f, 0.75f,    0.75f,  0.75f },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.4f,    0.4f,   0.4f,   0.4f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.4f,    0.4f,   0.4f,   0.4f    },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.9f,    0.9f,   0.9f,   0.9f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.75f, 0.75f,    0.75f,  0.75f },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.4f,    0.4f,   0.4f,   0.4f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.4f,    0.4f,   0.4f,   0.4f    },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.7f,    0.7f,   0.7f,   0.7f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.9f,    0.9f,   0.9f,   0.9f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.75f, 0.75f,    0.75f,  0.75f },
      { 0.8f,    0.8f,   0.8f,   0.8f    },
      { 0.4f,    0.4f,   0.4f,   0.4f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.0f,    0.0f,   0.0f,   0.0f    },
      { 0.4f,    0.4f,   0.4f,   0.4f    },
      { 0.8f,    0.8f,   0.8f,   0.8f    }
    };
    return Color4f(colorMap[i][0], colorMap[i][1], colorMap[i][2], colorMap[i][3]);
  }
};
// /*! @} */
} //namespace io
}//namespace tri
} // namespace vcg

#endif //__VCGLIB_IMPORT_OFF