src/lib-controler-gmap/precompile/precompile-face.cc

Go to the documentation of this file.

/*
 * lib-controler-gmap : Le contrôleur de 3-G-cartes, surcouche de lib-controler.
 * Copyright (C) 2004, Moka Team, Université de Poitiers, Laboratoire SIC
 *               http://www.sic.sp2mi.univ-poitiers.fr/
 * Copyright (C) 2009, Guillaume Damiand, CNRS, LIRIS,
 *               guillaume.damiand@liris.cnrs.fr, http://liris.cnrs.fr/
 *
 * This file is part of lib-controler-gmap
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

//******************************************************************************
#include "controler-gmap-types.hh"
#include "precompile-face.hh"
#include "parameter-gmap-vertex.hh"
#include "parameter-face.hh"
#include <cassert>
#include <cstdlib>
using namespace GMap3d;
//******************************************************************************
CPrecompileFace::CPrecompileFace(CParameterGMapVertex * AParameterGMapV,
                                 CParameterFace       * AParameterFace ) :
  FParameterGMapV(AParameterGMapV),
  FParameterFace (AParameterFace),
  FTess(NULL)
{
  assert(FParameterGMapV!=NULL && FParameterFace!=NULL);

  FParameterGMapV->addPrecompileToUpdate(this);
  FParameterFace->addPrecompileToUpdate(this);
}
//******************************************************************************
CPrecompileFace::CPrecompileFace(const CPrecompileFace & APrecompile) :
  CPrecompile    (APrecompile),
  FParameterGMapV(APrecompile.FParameterGMapV),
  FParameterFace (static_cast<CParameterFace*>
                  (APrecompile.FParameterFace->copy())),
  FTess(NULL)
{
  assert(FParameterGMapV!=NULL && FParameterFace!=NULL);

  FParameterGMapV->addPrecompileToUpdate(this);
  FParameterFace->addPrecompileToUpdate(this);
}
//******************************************************************************
CPrecompileFace::~CPrecompileFace()
{
  FParameterGMapV->removePrecompileToUpdate(this);
  FParameterFace->removePrecompileToUpdate(this);
}
//******************************************************************************
CPrecompile * CPrecompileFace::copy() const
{ return new CPrecompileFace(*this); }
//******************************************************************************
void CPrecompileFace::setParameter(CParameter * AParameter)
{
  switch (AParameter->getType())
    {
    case PARAMETER_GMAP_VERTEX:
      setGMapVertex(static_cast<CParameterGMapVertex *>(AParameter));
      break;
    case PARAMETER_FACE:
      setFace(static_cast<CParameterFace *>(AParameter));
      break;
    }
}
//******************************************************************************
CParameter* CPrecompileFace::getParameter() const
{ return FParameterFace; }
//******************************************************************************
void CPrecompileFace::setGMapVertex(CParameterGMapVertex* AParameterGMapV)
{
  assert(AParameterGMapV != NULL);
  AParameterGMapV->addPrecompileToUpdate(this);
  FParameterGMapV->removePrecompileToUpdate(this);
  FParameterGMapV = AParameterGMapV;
  setToUpdate();
}
//******************************************************************************
void CPrecompileFace::setFace(CParameterFace * AFace)
{
  assert(AFace != NULL);
  AFace->addPrecompileToUpdate(this);
  FParameterFace->removePrecompileToUpdate(this);
  FParameterFace = AFace;
  setToUpdate();
}
//******************************************************************************
TPrecompile CPrecompileFace::getType() const
{ return PRECOMPILE_FACE; }
//******************************************************************************
// monCombine :
//   Fonction nécessaire si on veut afficher les faces auto-intersectantes.
//   Sans cette fonction, ces faces sont affichées en fil de fer.
static void monCombine(GLdouble c[3], void *d[4], GLfloat w[4], void **out)
{
  GLdouble *nv = (GLdouble *) malloc(sizeof(GLdouble)*3);

  nv[0] = c[0];

  nv[1] = c[1];

  nv[2] = c[2];

  *out = nv;
}
//******************************************************************************
void CPrecompileFace::drawModel()
{
  glEnable(GL_BLEND);
  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

  bool bursted1 = ! areEqual(FParameterGMapV->getMap()->getBurstCoef(1), 1.0);
  int treated   = FParameterGMapV->getMap()->getNewMark();

  FTess = gluNewTess();
  gluTessCallback(FTess, GLU_TESS_BEGIN,   (GLvoid (*) ( )) & glBegin    );
  gluTessCallback(FTess, GLU_TESS_END,     (GLvoid (*) ( )) & glEnd      );
  gluTessCallback(FTess, GLU_TESS_VERTEX,  (GLvoid (*) ( )) & glVertex3dv);
  gluTessCallback(FTess, GLU_TESS_COMBINE, (GLvoid (*) ( )) & monCombine );

  // Couleur globale :
  if ( !FParameterFace->getRandomCLFace  () &&
       !FParameterFace->getRandomCLVolume() )
    glColor4f(FParameterFace->getCLFace(0),
              FParameterFace->getCLFace(1),
              FParameterFace->getCLFace(2),
              FParameterFace->getBLFace());

  for (CDynamicCoverageAll it(FParameterGMapV->getMap()); it.cont(); ++it)
    if (! FParameterGMapV->getMap()->isMarked(*it, treated))
      {
        if ( FParameterFace->getRandomCLVolume() )
          setRandomColor(*it, 3);

        for (CDynamicCoverage012 it2(FParameterGMapV->getMap(), *it);
             it2.cont(); ++it2)
          if (! FParameterGMapV->getMap()->isMarked(*it2, treated))
            {
              if (FParameterGMapV->getMap()->isClosedPolyline(*it2))
                // && FParameterGMapV->getMap()->isPlanarPolyline(*it)
                {
                  int nbSommetsFace = FParameterGMapV->getMap()->
                    getNbPolylineVertices(*it2);
                  if (nbSommetsFace > 2)
                    {
                      if (FParameterFace->getRandomCLFace())
                        setRandomColor(*it2, 2);

                      drawFace(*it2, nbSommetsFace, bursted1);
                    }
                }

              FParameterGMapV->getMap()->markOrbit(*it2, ORBIT_01, treated);
            }
      }

  FParameterGMapV->getMap()->negateMaskMark(treated);
  FParameterGMapV->getMap()->freeMark(treated);
  gluDeleteTess(FTess);
  
  glDisable(GL_BLEND);
}
//------------------------------------------------------------------------------
void CPrecompileFace::setRandomColor(CDart* ADart, int ADimension)
{
  assert( ADimension!=0 );
  
  float r,v,b;

  if ( FParameterFace->getRandomColorGeometry() )
    {
      CVertex bary = FParameterGMapV->getMap()->
        barycenter(ADart, ORBIT_CELL[ADimension]);
      r = bary.getX();
      v = bary.getY();
      b = bary.getZ();
    }
  else
    { 
      int c = 0;
      
      CCoverage* cov = FParameterGMapV->getMap()->
        getDynamicCoverage(ADart, ORBIT_CELL[ADimension]);
      
      for ( ; cov->cont(); ++ *cov)
        c += (int) ** cov;
      
      delete cov;
      
      r = c / (ADimension * 300 + 0.2);
      v = c / (ADimension * 400 + 0.1);
      b = c / (ADimension * 500 + 0.3);
    }

#define FLT(v) fabs(v)-floor(fabs(v))
  glColor4f(FLT(r),FLT(v),FLT(b), FParameterFace->getBLFace());
#undef FLT
}
//------------------------------------------------------------------------------
void CPrecompileFace::drawFace(CDart* ADart, int ANbSommets, bool ABursted)
{
  gluTessBeginPolygon(FTess, NULL);
  gluTessBeginContour(FTess);
  
  GLdouble* data = new GLdouble[(ABursted ? 6 : 3) * (ANbSommets+1)];
  
  CVertex pred;
  int numeroSommet = 0;
  
  // Parcours de la face
  for (CDynamicCoverage01 cov(FParameterGMapV->getMap(), ADart);
       cov.cont(); ++cov)
    {
      // Récupérer les coordonnées associées au brins
      CVertex & v = FParameterGMapV->getMap()->getBurstVertex(* cov);
      
      if (cov.prevOperationType() == OP_NONE || pred != v)
        {
          data[  (numeroSommet*3)] = v.getX();
          data[1+(numeroSommet*3)] = v.getY();
          data[2+(numeroSommet*3)] = v.getZ();
          
          gluTessVertex(FTess, &data[numeroSommet*3], &data[numeroSommet*3]);
          ++ numeroSommet;
          pred = v;
        }
    }

  gluTessEndContour(FTess);
  gluTessEndPolygon(FTess);

  delete [] data;
}
//******************************************************************************

---