FDH14Tree.cc

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#include <esg/spacesorting/FDH14Tree.h>
#include <esg/explorer/NExtentsExplorer.h>
#include <esg/explorer/ExtentExplorer.h>

using namespace esg;


Geometry* FDH14Tree::_create_bv(List<SceneGraphObject>& list)
{
    return (Geometry*) new FDH14(list);
}

Geometry* FDH14Tree::_create_bv(Geometry& bv1, Geometry& bv2)
{
    return (Geometry*) new FDH14(bv1, bv2);
}

Geometry* FDH14Tree::_create_bv(SceneGraphObject& obj)
{
#if defined(_MSC_VER)
    float *fdhVal = new float [2*_dirs];
#else
    float fdhVal [2*_dirs];
#endif
    
    NExtentsExplorer explorer(_fdhMat, _dirs);
    explorer.explore(obj);
    for (unsigned i = 0; i < _dirs; i++) {
        explorer.explore(obj);
        fdhVal[i]       =   explorer.result(i).max;
        fdhVal[i+_dirs] = - explorer.result(i).min;
    }

    FDH14 * pFDH = new FDH14(fdhVal);

#if defined(_MSC_VER)
    delete [] fdhVal;
#endif

    return pFDH;
}

Geometry* FDH14Tree::_create_bv(const float* fdhVal, unsigned)
{
    return (Geometry*) new FDH14(fdhVal);
}

DistRot* FDH14Tree::_create_dist_rot(BVH::Node * pNode)
{
    return new FDH14DistRot(((FDH14*)pNode->bv)->_values,
                            _pRotInfo,
                            _scaleRatio);
}

void FDH14Tree::_dr_init(const Matrix4* pMyTr,
                         const Matrix4* pHisTr,
                         BVH*           pPartner)
{
    FDHTree::_dr_init(NULL,NULL,pPartner);
    
    if (_pRotInfo) { delete _pRotInfo; _pRotInfo = NULL; }
    
    Matrix4 * pMat = multiTrans(pHisTr, pMyTr, _scaleRatio);
    if (pMat) {
        _pRotInfo = new FDH14::RotInfo(*pMat);
        delete pMat;
    } 
}

void FDH14Tree::_duplicate_attributes(const SDS& src)
{
  FDHTree::_duplicate_attributes(src);
  if (((FDH14Tree&)src)._pRotInfo)
      _pRotInfo = ((FDH14Tree&)src)._pRotInfo->clone();
  else
      _pRotInfo = NULL;
}



//-------- public ----------

FDH14Tree::FDH14Tree(unsigned ll, unsigned dl, bool delayBuild,
                     BVList::SplitStrategy ss)
  : FDHTree(ll, dl, FDH14::FDHMat, FDH14::DIRS, delayBuild,ss)
{
    _pRotInfo = NULL;
}

SDS* FDH14Tree::clone() const
{
  FDH14Tree* ret = new FDH14Tree();
  ret->_duplicate_attributes(*this);
  return ret;
}

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