TYReflectionPruningStrategy.cpp

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/*
 * Copyright (C) <2012-2024> <EDF-DTG> <FRANCE>
 * This file is part of Code_TYMPAN (R).
 * Code_TYMPAN (R) 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 3 of the License, or
 * (at your option) any later version.
 * Code_TYMPAN (R) 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 Code_TYMPAN (R). If not, see <https://www.gnu.org/licenses/>.
 */
 
#include "TYReflectionPruningStrategy.h"
#include "Tympan/models/common/3d.h"
 
void TYReflectionVisibilityPruningStrategy::initialize(
    const std::vector<const TYSIntersection*>& currentReflectingSegments,
    const std::deque<OPoint3D>& currentImageSources)
{
    if (!currentReflectingSegments.empty())
    {
        const OPoint3D& previousImageSource = currentImageSources.back();
        const OSegment3D& previousSegment{currentReflectingSegments.back()->segInter[1]};
        _pVisibilityCone =
            std::make_unique<VisibilityCone>(previousImageSource, previousSegment._ptA, previousSegment._ptB);
    }
}
 
bool TYReflectionVisibilityPruningStrategy::pruningCriterionMet(
    const TYSIntersection& nextReflectingSegment) const
{
    if (_pVisibilityCone)
    {
        const OSegment3D& currentSegment{nextReflectingSegment.segInter[1]};
        // pruning criterion is met (true) when the segment is not visible (segmentIsVisibleInCone = false)
        return !_pVisibilityCone->segmentIsVisibleInCone(currentSegment);
    }
    else
    {
        return false;
    }
}