321 lines
17 KiB
C++
321 lines
17 KiB
C++
#include "reducedmodelevaluator.hpp"
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#include "hexagonremesher.hpp"
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#include "trianglepatterngeometry.hpp"
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#include <filesystem>
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using FullPatternVertexIndex = VertexIndex;
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using ReducedPatternVertexIndex = VertexIndex;
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ReducedModelEvaluator::ReducedModelEvaluator()
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{
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}
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ReducedModelEvaluator::Results ReducedModelEvaluator::evaluateReducedModel(
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ReducedModelOptimization::Results &optimizationResult)
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{
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const std::filesystem::path tileInto_triMesh_filePath
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= "/home/iason/Coding/build/PatternTillingReducedModel/Meshes/"
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"instantMeshes_plane_34.ply";
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const std::filesystem::path scenariosDirectoryPath
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= "/home/iason/Coding/Projects/Approximating shapes with flat "
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"patterns/ReducedModelEvaluator/Scenarios";
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const std::filesystem::path reducedPatternFilePath
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= "/home/iason/Coding/Projects/Approximating shapes with flat "
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"patterns/ReducedModelOptimization/TestSet/ReducedPatterns/single_reduced.ply";
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const std::filesystem::path fullPatternTessellatedResultsDirectoryPath
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= "/home/iason/Coding/Projects/Approximating shapes with flat "
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"patterns/ReducedModelEvaluator/TessellatedResults";
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return evaluateReducedModel(optimizationResult,
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tileInto_triMesh_filePath,
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scenariosDirectoryPath,
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reducedPatternFilePath,
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fullPatternTessellatedResultsDirectoryPath);
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}
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void ReducedModelEvaluator::printResults(const Results &evaluationResults,
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const std::string &resultsLabel,
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const std::filesystem::path &resultsOutputDirPath)
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{
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//report distance
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// csvFile csv_results("", flse);
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if (!resultsOutputDirPath.empty()) {
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std::filesystem::create_directories(resultsOutputDirPath);
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}
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#ifdef POLYSCOPE_DEFINED
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csvFile csv_results({}, false);
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#else
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std::filesystem::path csvOutputFilePath = resultsOutputDirPath.empty()
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? ""
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: std::filesystem::path(resultsOutputDirPath)
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.append("distances_" + resultsLabel + ".csv")
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.string();
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csvFile csv_results(csvOutputFilePath, true);
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#endif
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csv_results << resultsLabel;
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csv_results << endrow;
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#ifdef POLYSCOPE_DEFINED
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csv_results /*<< "Job Label"*/
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<< "drm2Reduced"
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<< "norm_drm2Reduced";
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#else
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csv_results << "Job Label"
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<< "drm2Reduced"
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<< "norm_drm2Reduced";
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#endif
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csv_results << endrow;
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// double sumOfNormalizedFull2Reduced = 0;
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for (int jobIndex = 0; jobIndex < ReducedModelEvaluator::scenariosTestSetLabels.size();
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jobIndex++) {
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const std::string &jobLabel = ReducedModelEvaluator::scenariosTestSetLabels[jobIndex];
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const double &distance_fullDrmToReduced = evaluationResults.distances_drm2reduced[jobIndex];
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const double &distance_normalizedFullDrmToReduced
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= evaluationResults.distances_normalizedDrm2reduced[jobIndex];
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#ifdef POLYSCOPE_DEFINED
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csv_results /*<< jobLabel*/ << distance_fullDrmToReduced
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<< distance_normalizedFullDrmToReduced;
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#else
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csv_results << jobLabel << distance_fullDrmToReduced << distance_normalizedFullDrmToReduced;
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#endif
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csv_results << endrow;
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// sumOfNormalizedFull2Reduced += distance_normalizedFullDrmToReduced;
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}
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}
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ReducedModelEvaluator::Results ReducedModelEvaluator::evaluateReducedModel(
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ReducedModelOptimization::Results &optimizationResult,
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const std::filesystem::path &tileInto_triMesh_filePath,
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const std::filesystem::path &scenariosDirectoryPath,
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const std::filesystem::path &reducedPatternFilePath,
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const std::filesystem::path &fullPatternTessellatedResultsDirectoryPath)
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{
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// std::shared_ptr<VCGPolyMesh> pTileIntoSurface = std::make_shared<VCGPolyMesh>();
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// std::filesystem::path tileIntoSurfaceFilePath{
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// "/home/iason/Coding/Projects/Approximating shapes with flat "
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// "patterns/ReducedModelOptimization/TestSet/TileIntoSurface/plane_34Polygons.ply"};
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// assert(std::filesystem::exists(tileIntoSurfaceFilePath));
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// pTileIntoSurface->load(tileIntoSurfaceFilePath);
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//Set required file paths
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// const std::filesystem::path drmSettingsFilePath
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// = "/home/iason/Coding/Projects/Approximating shapes with flat "
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// "patterns/ReducedModelOptimization/DefaultSettings/DRMSettings/"
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// "defaultDRMSimulationSettings.json";
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DRMSimulationModel::Settings drmSimulationSettings;
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drmSimulationSettings.totalExternalForcesNormPercentageTermination = 1e-3;
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// drmSimulationSettings.load(drmSettingsFilePath);
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drmSimulationSettings.linearGuessForceScaleFactor = 0.5;
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drmSimulationSettings.debugModeStep = 10000;
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drmSimulationSettings.beVerbose = true;
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drmSimulationSettings.maxDRMIterations = 1e6;
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// drmSimulationSettings.translationalKineticEnergyThreshold = 1e-15;
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// drmSimulationSettings.viscousDampingFactor = 1e-2;
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constexpr bool shouldRerunFullPatternSimulation = false;
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//Load surface
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std::shared_ptr<VCGPolyMesh> pTileIntoSurface = [&]() {
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VCGTriMesh tileInto_triMesh;
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const bool surfaceLoadSuccessfull = tileInto_triMesh.load(tileInto_triMesh_filePath);
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assert(surfaceLoadSuccessfull);
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return PolygonalRemeshing::remeshWithPolygons(tileInto_triMesh);
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}();
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const double optimizedBaseTriangleHeight = vcg::Distance(optimizationResult.baseTriangle.cP(0),
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(optimizationResult.baseTriangle.cP(1)
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+ optimizationResult.baseTriangle.cP(
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2))
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/ 2);
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pTileIntoSurface->moveToCenter();
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const double scaleFactor = optimizedBaseTriangleHeight
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/ pTileIntoSurface->getAverageFaceRadius();
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vcg::tri::UpdatePosition<VCGPolyMesh>::Scale(*pTileIntoSurface, scaleFactor);
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// tileIntoSurface.registerForDrawing();
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// polyscope::show();
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//Tile full pattern into surface
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std::vector<PatternGeometry> fullPatterns(1);
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fullPatterns[0].copy(optimizationResult.baseTriangleFullPattern);
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//// Base triangle pattern might contain dangling vertices.Remove those
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fullPatterns[0].interfaceNodeIndex = 3;
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fullPatterns[0].deleteDanglingVertices();
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std::vector<int> perSurfaceFacePatternIndices(pTileIntoSurface->FN(), 0);
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std::vector<std::vector<size_t>> perPatternIndexTiledFullPatternEdgeIndices;
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std::vector<size_t> tileIntoEdgeToTiledFullVi;
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std::shared_ptr<PatternGeometry> pTiledFullPattern
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= PatternGeometry::tilePattern(fullPatterns,
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{},
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*pTileIntoSurface,
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perSurfaceFacePatternIndices,
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tileIntoEdgeToTiledFullVi,
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perPatternIndexTiledFullPatternEdgeIndices);
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pTiledFullPattern->setLabel("Tiled_full_patterns");
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// pTiledFullPattern->registerForDrawing();
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//Tile reduced pattern into surface
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PatternGeometry reducedPattern;
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reducedPattern.load(reducedPatternFilePath);
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reducedPattern.deleteDanglingVertices();
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reducedPattern.interfaceNodeIndex = 1;
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assert(reducedPattern.interfaceNodeIndex == 1);
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std::vector<PatternGeometry> reducedPatterns(1);
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reducedPatterns[0].copy(reducedPattern);
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const auto reducedPatternBaseTriangle = reducedPattern.computeBaseTriangle();
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ReducedModelOptimization::Results::applyOptimizationResults_innerHexagon(
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optimizationResult, reducedPatternBaseTriangle, reducedPatterns[0]);
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std::vector<std::vector<size_t>> perPatternIndexTiledReducedPatternEdgeIndices;
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std::vector<size_t> tileIntoEdgeToTiledReducedVi;
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std::shared_ptr<PatternGeometry> pTiledReducedPattern
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= PatternGeometry::tilePattern(reducedPatterns,
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{0},
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*pTileIntoSurface,
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perSurfaceFacePatternIndices,
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tileIntoEdgeToTiledReducedVi,
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perPatternIndexTiledReducedPatternEdgeIndices);
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pTiledReducedPattern->setLabel("Tiled_reduced_patterns");
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// pTiledReducedPattern->registerForDrawing();
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std::unordered_map<FullPatternVertexIndex, ReducedPatternVertexIndex>
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fullToReducedViMap; //of only the common vertices
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std::unordered_map<ReducedPatternVertexIndex, FullPatternVertexIndex>
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reducedToFullViMap; //of only the common vertices
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for (int ei = 0; ei < pTileIntoSurface->EN(); ei++) {
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fullToReducedViMap[tileIntoEdgeToTiledFullVi[ei]] = tileIntoEdgeToTiledReducedVi[ei];
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}
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constructInverseMap(fullToReducedViMap, reducedToFullViMap);
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std::vector<size_t> tilledFullPatternInterfaceVi;
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tilledFullPatternInterfaceVi.clear();
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tilledFullPatternInterfaceVi.resize(fullToReducedViMap.size());
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size_t viIndex = 0;
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for (std::pair<size_t, size_t> fullToReducedPair : fullToReducedViMap) {
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tilledFullPatternInterfaceVi[viIndex++] = fullToReducedPair.first;
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}
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//Create simulation meshes
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////Tessellated full pattern simulation mesh
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std::shared_ptr<SimulationMesh> pTiledFullPattern_simulationMesh;
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pTiledFullPattern_simulationMesh = std::make_shared<SimulationMesh>(*pTiledFullPattern);
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//NOTE: Those should be derived from the optimization results instead of hardcoding them
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pTiledFullPattern_simulationMesh->setBeamCrossSection(CrossSectionType{0.002, 0.002});
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if (optimizationResult.fullPatternYoungsModulus == 0) {
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std::cerr << "Full pattern's young modulus not found." << std::endl;
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std::terminate();
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}
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pTiledFullPattern_simulationMesh->setBeamMaterial(0.3,
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optimizationResult.fullPatternYoungsModulus);
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pTiledFullPattern_simulationMesh->reset();
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////Tessellated reduced pattern simulation mesh
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std::shared_ptr<SimulationMesh> pTiledReducedPattern_simulationMesh;
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pTiledReducedPattern_simulationMesh = std::make_shared<SimulationMesh>(*pTiledReducedPattern);
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const std::vector<size_t> &tiledPatternElementIndicesForReducedPattern
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= perPatternIndexTiledReducedPatternEdgeIndices[0];
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ReducedModelOptimization::Results::applyOptimizationResults_elements(
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optimizationResult, pTiledReducedPattern_simulationMesh);
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pTiledReducedPattern_simulationMesh->reset();
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Results evaluationResults;
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evaluationResults.distances_drm2reduced;
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evaluationResults.distances_normalizedDrm2reduced;
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for (int jobIndex = 0; jobIndex < scenariosTestSetLabels.size(); jobIndex++) {
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const std::string &jobLabel = scenariosTestSetLabels[jobIndex];
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const std::filesystem::path tiledReducedPatternJobFilePath
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= std::filesystem::path(scenariosDirectoryPath)
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.append(pTileIntoSurface->getLabel())
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.append(jobLabel)
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.append("ReducedJob")
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.append(SimulationJob::jsonDefaultFileName);
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if (!std::filesystem::exists(tiledReducedPatternJobFilePath)) {
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std::cerr << "Scenario " << jobLabel
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<< " not found in:" << tiledReducedPatternJobFilePath << std::endl;
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continue;
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}
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//set jobs
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std::shared_ptr<SimulationJob> pJob_tiledReducedPattern;
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pJob_tiledReducedPattern = std::make_shared<SimulationJob>(SimulationJob());
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pJob_tiledReducedPattern->load(tiledReducedPatternJobFilePath, false);
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pJob_tiledReducedPattern->pMesh = pTiledReducedPattern_simulationMesh;
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std::shared_ptr<SimulationJob> pJob_tiledFullPattern;
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pJob_tiledFullPattern = std::make_shared<SimulationJob>(SimulationJob());
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pJob_tiledFullPattern->pMesh = pTiledFullPattern_simulationMesh;
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pJob_tiledReducedPattern->remap(reducedToFullViMap, *pJob_tiledFullPattern);
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// pJob_tiledReducedPattern->registerForDrawing(pTiledReducedPattern->getLabel());
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// pJob_tiledFullPattern->registerForDrawing(pTiledFullPattern->getLabel());
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// polyscope::show();
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//Save reduced job
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const std::filesystem::path surfaceFolderPath
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= std::filesystem::path(fullPatternTessellatedResultsDirectoryPath)
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.append(pTileIntoSurface->getLabel());
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const std::string scenarioLabel = pJob_tiledFullPattern->getLabel();
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const std::filesystem::path scenarioDirectoryPath = std::filesystem::path(surfaceFolderPath)
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.append(scenarioLabel);
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const std::filesystem::path reducedJobDirectoryPath
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= std::filesystem::path(scenarioDirectoryPath).append("ReducedJob");
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std::filesystem::create_directories(reducedJobDirectoryPath);
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pJob_tiledReducedPattern->save(reducedJobDirectoryPath);
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//Run scenario
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////Full
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const std::string patternLabel = optimizationResult.baseTriangleFullPattern.getLabel();
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const auto fullResultsFolderPath
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= std::filesystem::path(scenarioDirectoryPath).append(patternLabel).append("Results");
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if (shouldRerunFullPatternSimulation && std::filesystem::exists(fullResultsFolderPath)) {
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std::filesystem::remove_all(fullResultsFolderPath);
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}
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const std::filesystem::path fullPatternJobFolderPath = std::filesystem::path(
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scenarioDirectoryPath)
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.append(patternLabel)
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.append("SimulationJob");
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SimulationResults simulationResults_tiledFullPattern_drm;
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if (std::filesystem::exists(fullResultsFolderPath)) {
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//Load full pattern results
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assert(std::filesystem::exists(fullPatternJobFolderPath));
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simulationResults_tiledFullPattern_drm.load(fullResultsFolderPath,
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fullPatternJobFolderPath);
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simulationResults_tiledFullPattern_drm.converged = true;
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} else {
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//Full
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std::cout << "Executing:" << jobLabel << std::endl;
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DRMSimulationModel drmSimulationModel;
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simulationResults_tiledFullPattern_drm
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= drmSimulationModel.executeSimulation(pJob_tiledFullPattern, drmSimulationSettings);
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simulationResults_tiledFullPattern_drm.setLabelPrefix("DRM");
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}
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std::filesystem::create_directories(fullResultsFolderPath);
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const std::filesystem::path drmResultsOutputPath
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= std::filesystem::path(scenarioDirectoryPath).append(patternLabel);
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simulationResults_tiledFullPattern_drm.save(drmResultsOutputPath);
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if (!simulationResults_tiledFullPattern_drm.converged) {
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std::cerr << "Full pattern simulation failed." << std::endl;
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std::cerr << "Saved failed simulation to:" << drmResultsOutputPath << std::endl;
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continue;
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}
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LinearSimulationModel linearSimulationModel;
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SimulationResults simulationResults_tiledReducedPattern
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= linearSimulationModel.executeSimulation(pJob_tiledReducedPattern);
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// simulationResults_tiledReducedPattern.registerForDrawing();
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// simulationResults_tiledFullPattern_drm.registerForDrawing();
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// polyscope::show();
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//measure distance
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const double distance_fullDrmToReduced
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= simulationResults_tiledFullPattern_drm
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.computeDistance(simulationResults_tiledReducedPattern, fullToReducedViMap);
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double distance_fullSumOfAllVerts = 0;
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for (std::pair<size_t, size_t> fullToReducedPair : fullToReducedViMap) {
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distance_fullSumOfAllVerts += simulationResults_tiledFullPattern_drm
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.displacements[fullToReducedPair.first]
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.getTranslation()
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.norm();
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}
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const double distance_normalizedFullDrmToReduced = distance_fullDrmToReduced
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/ distance_fullSumOfAllVerts;
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evaluationResults.distances_drm2reduced[jobIndex] = distance_fullDrmToReduced;
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evaluationResults.distances_normalizedDrm2reduced[jobIndex]
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= distance_normalizedFullDrmToReduced;
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}
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return evaluationResults;
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}
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