Method run

filters/GridDecimationFilter.cpp:161–193

}

PointViewSet GridDecimationFilter::run(PointViewPtr view)
{
    PointViewSet viewSet;

    BOX2D bounds;
    view->calculateBounds(bounds);
    createGrid(bounds);

    for (PointId i = 0; i < view->size(); ++i)
    {
        PointRef point = view->point(i);
        processOne(bounds,point,view);
    }

    std::set<PointId> keepPoint;
    for (auto it : this->grid)
        if (it.second != -1)
            keepPoint.insert(it.second);

    for (PointId i = 0; i < view->size(); ++i)
    {
        if (keepPoint.find(view->point(i).pointId()) != keepPoint.end())
        {
            PointRef point = view->point(i);
            for (expr::AssignStatement& expr : m_args->m_statements)
                if (expr.conditionalExpr().eval(point))
                    point.setField(expr.identExpr().eval(), expr.valueExpr().eval(point));
        }
    }

    viewSet.insert(view);
    return viewSet;
}

} // namespace pdal