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//
// Filename : HeuristicGridDensityProviderFactory.cpp
// Author(s) : Alexander Beels
// Purpose : Class to define a cell grid surrounding
// the projected image of a scene
// Date of creation : 2011-2-8
//
///////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) : Please refer to the COPYRIGHT file distributed
// with this source distribution.
//
// 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 for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
///////////////////////////////////////////////////////////////////////////////
#include "HeuristicGridDensityProviderFactory.h"
HeuristicGridDensityProviderFactory::HeuristicGridDensityProviderFactory(real sizeFactor, unsigned numFaces)
: sizeFactor(sizeFactor), numFaces(numFaces)
{
}
HeuristicGridDensityProviderFactory::~HeuristicGridDensityProviderFactory () {}
auto_ptr<GridDensityProvider> HeuristicGridDensityProviderFactory::newGridDensityProvider(OccluderSource& source, const real proscenium[4])
{
auto_ptr<AverageAreaGridDensityProvider> avg(new AverageAreaGridDensityProvider(source, proscenium, sizeFactor));
auto_ptr<Pow23GridDensityProvider> p23(new Pow23GridDensityProvider(source, proscenium, numFaces));
if ( avg->cellSize() > p23->cellSize() ) {
return (auto_ptr<GridDensityProvider>) p23;
} else {
return (auto_ptr<GridDensityProvider>) avg;
}
}
auto_ptr<GridDensityProvider> HeuristicGridDensityProviderFactory::newGridDensityProvider(OccluderSource& source, const BBox<Vec3r>& bbox, const GridHelpers::Transform& transform)
{
auto_ptr<AverageAreaGridDensityProvider> avg(new AverageAreaGridDensityProvider(source, bbox, transform, sizeFactor));
auto_ptr<Pow23GridDensityProvider> p23(new Pow23GridDensityProvider(source, bbox, transform, numFaces));
if ( avg->cellSize() > p23->cellSize() ) {
return (auto_ptr<GridDensityProvider>) p23;
} else {
return (auto_ptr<GridDensityProvider>) avg;
}
}
auto_ptr<GridDensityProvider> HeuristicGridDensityProviderFactory::newGridDensityProvider(OccluderSource& source)
{
real proscenium[4];
GridDensityProvider::calculateOptimalProscenium(source, proscenium);
auto_ptr<AverageAreaGridDensityProvider> avg(new AverageAreaGridDensityProvider(source, proscenium, sizeFactor));
auto_ptr<Pow23GridDensityProvider> p23(new Pow23GridDensityProvider(source, proscenium, numFaces));
if ( avg->cellSize() > p23->cellSize() ) {
return (auto_ptr<GridDensityProvider>) p23;
} else {
return (auto_ptr<GridDensityProvider>) avg;
}
}
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