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92 lines
2.9 KiB
C++
92 lines
2.9 KiB
C++
/////////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2017- Statoil ASA
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//
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// ResInsight is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
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// for more details.
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//
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/////////////////////////////////////////////////////////////////////////////////
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#include "RigWeightedMeanCalc.h"
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#include "RiaDefines.h"
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#include "RigActiveCellInfo.h"
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#include "RigFlowDiagResults.h"
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#include <cmath> // Needed for HUGE_VAL on Linux
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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void RigWeightedMeanCalc::weightedMeanOverCells(const std::vector<double>* weights,
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const std::vector<double>* values,
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const cvf::UByteArray* cellVisibilities,
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bool isUsingVisibleCells,
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const RigActiveCellInfo* actCellInfo,
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bool isUsingActiveIndex,
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double *result)
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{
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if (!(weights && values && result)) return;
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if (!cellVisibilities && isUsingVisibleCells) return;
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if (!actCellInfo && isUsingActiveIndex) return;
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if (weights->empty() || values->empty()) return;
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double weightedSum = 0.0;
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double weightSum = 0.0;
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for (size_t cIdx = 0; cIdx < actCellInfo->reservoirCellCount(); ++cIdx)
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{
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if (isUsingVisibleCells)
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{
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if (!(*cellVisibilities)[cIdx]) continue;
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}
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size_t cellResultIndex = actCellInfo->cellResultIndex(cIdx);
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if (cellResultIndex == cvf::UNDEFINED_SIZE_T || cellResultIndex > weights->size())
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{
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continue;
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}
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double value;
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if (isUsingActiveIndex)
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{
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value = (*values)[cellResultIndex];
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}
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else
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{
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value = (*values)[cIdx];
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}
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double weight = (*weights)[cellResultIndex];
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if (weight == HUGE_VAL || value == HUGE_VAL)
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{
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continue;
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}
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weightedSum += weight * value;
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weightSum += weight;
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}
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if (weightSum != 0)
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{
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*result = weightedSum / weightSum;
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}
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else
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{
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*result = HUGE_VAL;
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}
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}
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