Changeset 15731
- Timestamp:
- 02/07/18 14:54:42 (7 years ago)
- Location:
- branches/2817-BinPackingSpeedup
- Files:
-
- 3 added
- 1 deleted
- 20 edited
Legend:
- Unmodified
- Added
- Removed
-
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking.Views/3.3/Container3DView.xaml
r15488 r15731 48 48 Unchecked="ShowResidualSpacesCheckBoxOnUnchecked" 49 49 Checked="ShowResidualSpacesCheckBoxOnChecked"/> 50 <TextBlock Name="selectedItemTextBlock" 51 Margin="10,6,0,0" 52 VerticalAlignment="Top" 53 HorizontalAlignment="Left" 54 Text="Gegenstand:"/> 50 55 </StackPanel> 51 <Border BorderThickness="1" Background="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" Margin="0, 52,0,0">56 <Border BorderThickness="1" Background="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" Margin="0,70,0,0"> 52 57 <Viewport3D Name="viewport3D1" Margin="0,-1,0,0" > 53 58 <Viewport3D.Camera> 54 <PerspectiveCamera x:Name="camMain" Position="0.5 8 8" LookDirection="0 -1 -1"> <!-- camera position for design time--> 59 <PerspectiveCamera x:Name="camMain" Position="0.5 8 8" LookDirection="0 -1 -1"> 60 <!-- camera position for design time--> 55 61 </PerspectiveCamera> 56 62 </Viewport3D.Camera> -
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking.Views/3.3/Container3DView.xaml.cs
r15705 r15731 119 119 } 120 120 121 private void DisplaySelectedItemText() { 122 string text = ""; 123 if (selectedItemKey < 0) { 124 text = $"{packing.BinShape.ToString()}"; 125 } else { 126 var packingItem = packing.Items.Single(x => selectedItemKey == x.Key); 127 var position = packing.Positions.Single(x => x.Key == packingItem.Key); 128 text = $"{packingItem.Value.ToString()}, {position.ToString()}"; 129 if (packing is BinPacking3D.BinPacking3D) { 130 var stackedWeight = ((BinPacking3D.BinPacking3D)packing).GetStackedWeightForItemId(packingItem.Key); 131 text += $", stacked weight: {stackedWeight}"; 132 } 133 } 134 selectedItemTextBlock.Text = text; 135 } 136 121 137 private void UpdateVisualization() { 122 138 Clear(); … … 126 142 var modelGroup = (Model3DGroup)MyModel.Content; 127 143 var hiddenMaterial = new DiffuseMaterial(new SolidColorBrush(hiddenColor)); 144 145 DisplaySelectedItemText(); 128 146 129 147 if (selectedItemKey >= 0) { -
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/Algorithms/ExtremePointAlgorithm.cs
r15646 r15731 40 40 41 41 public enum SortingMethod { All, Given, VolumeHeight, HeightVolume, AreaHeight, HeightArea, ClusteredAreaHeight, ClusteredHeightArea } 42 public enum FittingMethod { All, FirstFit, ResidualSpaceBestFit, FreeVolumeBestFit, MinimumResidualSpaceLeft }42 public enum FittingMethod { All, FirstFit, ResidualSpaceBestFit, FreeVolumeBestFit, MinimumResidualSpaceLeft, FormClosure } 43 43 44 44 public enum ExtremePointCreationMethod { All, PointProjection, LineProjection } -
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/BinPacking3D.cs
r15705 r15731 29 29 using HeuristicLab.Problems.BinPacking3D.Geometry; 30 30 using HeuristicLab.Collections; 31 using HeuristicLab.Problems.BinPacking3D.Graph; 31 32 32 33 namespace HeuristicLab.Problems.BinPacking3D { … … 37 38 [Storable] 38 39 public IDictionary<PackingPosition, IEnumerable<ResidualSpace>> ExtremePoints { get; protected set; } 39 40 41 [Storable] 42 public IDirectedGraph WeightDistirbution { get; protected set; } 40 43 41 44 public BinPacking3D(PackingShape binShape) 42 45 : base(binShape) { 43 46 ExtremePoints = new SortedList<PackingPosition, IEnumerable<ResidualSpace>>(); 44 45 47 ExtremePoints.Add(binShape.Origin, new List<ResidualSpace>() { ResidualSpace.Create(binShape.Width, binShape.Height, binShape.Depth) }); 48 49 WeightDistirbution = new DirectedGraph(); 46 50 } 47 51 … … 58 62 } 59 63 ExtremePoints.Add(cloner.Clone(extremePoint.Key), residualSpaces); 60 } 64 } 65 66 // todo clone WeightDistirbution graph 61 67 } 62 68 … … 77 83 Positions[itemID] = position; 78 84 ExtremePoints.Remove(position); 79 } 85 86 AddToGraph(itemID, item, position); 87 } 88 89 90 #region Graph for the calculating the weight distirbution 91 private void AddToGraph(int itemId, PackingItem item, PackingPosition position) { 92 var sourceVertex = new VertexWithItemId(itemId); 93 WeightDistirbution.AddVertex(sourceVertex); 94 95 var itemsBelow = GetItemsUnderAnItem(position, item); 96 foreach (var itemBelow in itemsBelow) { 97 var targetVertex = GetVertexForItemBelow(itemBelow); 98 if (targetVertex == null) { 99 continue; 100 } 101 102 double overlay = CalculateOverlay(itemBelow, Tuple.Create<PackingPosition, PackingItem>(position, item)); 103 double area = (item.Width * item.Depth); 104 var arc = new Arc(sourceVertex, targetVertex) { 105 Weight = overlay / area 106 }; 107 WeightDistirbution.AddArc(arc); 108 } 109 } 110 111 /// <summary> 112 /// Returns a vertex related to the given tuple of an item and packing position. 113 /// If there is no related vertex the method returns null. 114 /// </summary> 115 /// <param name="itemBelow"></param> 116 /// <returns></returns> 117 private IVertex GetVertexForItemBelow(Tuple<PackingPosition, PackingItem> itemBelow) { 118 var filteredItems = Items.Where(x => x.Value == itemBelow.Item2); 119 if (filteredItems.Count() <= 0) { 120 return null; 121 } 122 var itemIdBelow = filteredItems.First().Key; 123 124 var targetVertex = WeightDistirbution.Vertices.Where(x => { 125 if (x is VertexWithItemId) { 126 return ((VertexWithItemId)x).ItemId == itemIdBelow; 127 } 128 return false; 129 }).FirstOrDefault(); 130 131 return targetVertex; 132 } 133 134 135 #endregion 136 137 #region Calculation of the stacked weight 138 public double GetStackedWeightForItemId(int itemId) { 139 return GetStackedWeightForItemIdRec(itemId); 140 } 141 142 private double GetStackedWeightForItemIdRec(int itemId) { 143 var arcs = WeightDistirbution.Arcs.Where(x => ((VertexWithItemId)x.Target).ItemId == itemId); 144 var stackedWeight = 0.0; 145 foreach (var arc in arcs) { 146 var sourceItemId = ((VertexWithItemId)arc.Source).ItemId; 147 var sourceItem = Items[sourceItemId]; 148 stackedWeight += (GetStackedWeightForItemIdRec(sourceItemId) + sourceItem.Weight) * arc.Weight; 149 } 150 151 return stackedWeight; 152 } 153 154 #endregion 80 155 81 156 #region MassPoint … … 316 391 } 317 392 318 var overlayZ = inFront.Item2. Width;319 if (behind.Item1. X + behind.Item2.Width < inFront.Item1.X + inFront.Item2.Width) {320 overlayZ = behind.Item1. X + behind.Item2.Width - inFront.Item1.X;393 var overlayZ = inFront.Item2.Depth; 394 if (behind.Item1.Z + behind.Item2.Depth < inFront.Item1.Z + inFront.Item2.Depth) { 395 overlayZ = behind.Item1.Z + behind.Item2.Depth - inFront.Item1.Z; 321 396 } 322 397 … … 337 412 } 338 413 414 /// <summary> 415 /// Returns a collection of items and its position which have contact to an given item below 416 /// </summary> 417 /// <param name="position"></param> 418 /// <param name="item"></param> 419 /// <returns></returns> 339 420 private IEnumerable<Tuple<PackingPosition, PackingItem>> GetItemsUnderAnItem(PackingPosition position, PackingItem item) { 340 421 var selected = Items.Select(x => new { … … 344 425 .Where(x => x.Position.X <= position.X && x.Position.X + x.Item.Width > position.X || 345 426 x.Position.X > position.X && x.Position.X < position.X + item.Width) 346 .Where(x => x.Position.Z <= position.Z && x.Position.Z + x.Item. Height> position.Z ||347 x.Position.Z > position.Z && x.Position.Z < position.Z + item. Height);427 .Where(x => x.Position.Z <= position.Z && x.Position.Z + x.Item.Depth > position.Z || 428 x.Position.Z > position.Z && x.Position.Z < position.Z + item.Depth); 348 429 349 430 return selected.Select(x => Tuple.Create(x.Position, x.Item)); -
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/Evaluators/BinUtilizationEvaluator.cs
r15646 r15731 81 81 } 82 82 83 public Tuple<int, double, int > Evaluate1(Solution solution) {83 public Tuple<int, double, int, int> Evaluate1(Solution solution) { 84 84 85 85 86 var res = Tuple.Create<int, double, int >(86 var res = Tuple.Create<int, double, int, int>( 87 87 GetBinCount(solution), 88 88 CalculateBinUtilizationFirstBin(solution), 89 GetNumberOfResidualSpaces(solution) 89 GetNumberOfResidualSpaces(solution), 90 CalculateMaxDepth(solution) 90 91 ); 91 92 … … 107 108 } 108 109 110 private static int CalculateMaxDepth(Solution solution) { 111 var packing = solution.Bins.Last(); 112 if (packing == null) { 113 return Int32.MaxValue; 114 } 115 116 return packing.Positions.Select(x => x.Value.Z + packing.Items[x.Key].Depth).Max(); 117 } 118 109 119 110 120 #endregion -
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/Evaluators/IEvaluator.cs
r15646 r15731 41 41 /// <param name="solution"></param> 42 42 /// <returns></returns> 43 Tuple<int, double, int > Evaluate1(Solution solution);43 Tuple<int, double, int, int> Evaluate1(Solution solution); 44 44 } 45 45 } -
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/Evaluators/PackingRatioEvaluator.cs
r15646 r15731 98 98 } 99 99 100 public Tuple<int, double, int > Evaluate1(Solution solution) {100 public Tuple<int, double, int, int> Evaluate1(Solution solution) { 101 101 102 102 103 var res = Tuple.Create<int, double, int >(103 var res = Tuple.Create<int, double, int, int>( 104 104 GetBinCount(solution), 105 105 CalculateBinUtilizationFirstBin(solution), 106 GetNumberOfResidualSpaces(solution) 106 GetNumberOfResidualSpaces(solution), 107 CalculateMaxDepth(solution) 107 108 ); 108 109 … … 124 125 } 125 126 127 private static int CalculateMaxDepth(Solution solution) { 128 var packing = solution.Bins.Last(); 129 if (packing == null) { 130 return Int32.MaxValue; 131 } 132 133 return packing.Positions.Select(x => x.Value.Z + packing.Items[x.Key].Depth).Max(); 134 } 135 126 136 #endregion 127 137 } -
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/ExtremePointCreation/LineProjectionBasedEPCreator.cs
r15705 r15731 35 35 /// This projection method enhances the point based projection method by creating extra extreme points on the intersection points of two items. 36 36 /// </summary> 37 public class LineProjectionBasedEPCreator : ExtremePointCreator { 38 39 /// <summary> 40 /// This lock object is needed because of creating the extreme points in an parallel for loop. 41 /// </summary> 42 object _lockAddExtremePoint = new object(); 43 44 protected override void UpdateExtremePoints(BinPacking3D binPacking, PackingItem item, PackingPosition position) { 45 binPacking.ExtremePoints.Clear(); 46 47 // generate all new extreme points parallel. This speeds up the creator. 48 Parallel.ForEach(binPacking.Items, i => { 49 PackingItem it = i.Value; 50 PackingPosition p = binPacking.Positions[i.Key]; 51 GenerateNewExtremePointsForItem(binPacking, it, p); 52 }); 53 54 // remove not needed extreme points. 55 foreach (var extremePoint in binPacking.ExtremePoints.ToList()) { 56 // check if a residual space can be removed 57 foreach (var rs in extremePoint.Value.ToList()) { 58 if (ResidualSpaceCanBeRemoved(binPacking, extremePoint.Key, rs)) { 59 ((IList<ResidualSpace>)extremePoint.Value).Remove(rs); 60 } 61 } 62 // if the current extreme point has no more residual spaces, it can be removed. 63 if (((IList<ResidualSpace>)extremePoint.Value).Count <= 0) { 64 binPacking.ExtremePoints.Remove(extremePoint); 65 } 66 } 67 68 } 69 70 /// <summary> 71 /// Returns true if a given residual space can be removed. 72 /// The given residual space can be removed if it is within another residual space and 73 /// - neither the position of the other residual space and the current extreme point have an item below or 74 /// - the current extreme point has an item below. 75 /// </summary> 76 /// <param name="binPacking"></param> 77 /// <param name="position"></param> 78 /// <param name="rs"></param> 79 /// <returns></returns> 80 private bool ResidualSpaceCanBeRemoved(BinPacking3D binPacking, PackingPosition position, ResidualSpace rs) { 81 foreach (var extremePoint in binPacking.ExtremePoints) { 82 if (position.Equals(extremePoint.Key)) { 83 continue; 84 } 85 if (IsWithinResidualSpaceOfAnotherExtremePoint(new Vector3D(position), rs, extremePoint.Key, extremePoint.Value)) { 86 var itemBelowEp = LiesOnAnyItem(binPacking, extremePoint.Key); 87 var itemBelowPos = LiesOnAnyItem(binPacking, position); 88 89 if (itemBelowEp || !itemBelowEp && !itemBelowPos) { 90 return true; 91 } 92 } 93 } 94 return false; 95 } 96 97 /// <summary> 98 /// Returns true if the given position lies on an item or an the ground. 99 /// </summary> 100 /// <param name="binPacking"></param> 101 /// <param name="position"></param> 102 /// <returns></returns> 103 private bool LiesOnAnyItem(BinPacking3D binPacking, PackingPosition position) { 104 if (position.Y == 0) { 105 return true; 106 } 107 108 var items = binPacking.Items.Where(x => { 109 var itemPosition = binPacking.Positions[x.Key]; 110 var item = x.Value; 111 int width = item.Width; 112 int depth = item.Depth; 113 114 return itemPosition.Y + item.Height == position.Y && 115 itemPosition.X <= position.X && position.X < itemPosition.X + width && 116 itemPosition.Z <= position.Z && position.Z < itemPosition.Z + depth; 117 }); 118 119 return items.Count() > 0; 120 } 121 122 123 /// <summary> 124 /// Adds a new extreme point an the related residual spaces to a given bin packing. 125 /// - The given position has to be valid. 126 /// - The extreme point does not exist in the bin packing. 127 /// - There must be at minimum one valid residual space. A residual space is invalid if the space is zero. 128 /// </summary> 129 /// <param name="binPacking"></param> 130 /// <param name="position"></param> 131 /// <returns>True = the given point and its related residual spaces were successfully added to the bin packing</returns> 132 protected override bool AddExtremePoint(BinPacking3D binPacking, PackingPosition position) { 133 if (position == null) { 134 return false; 135 } 136 137 if (PointIsInAnyItem(binPacking, new Vector3D(position))) { 138 return false; 139 } 140 141 // this is necessary if the extreme points are being created in a parallel loop. 142 lock (_lockAddExtremePoint) { 143 if (binPacking.ExtremePoints.ContainsKey(position)) { 144 return false; 145 } 146 147 var rs = CalculateResidualSpace(binPacking, new Vector3D(position)); 148 149 if (rs.Count() <= 0) { 150 return false; 151 } 152 153 binPacking.ExtremePoints.Add(position, rs); 154 return true; 155 } 156 } 37 public class LineProjectionBasedEPCreator : PointProjectionBasedEPCreator { 38 39 157 40 158 41 /// <summary> … … 168 51 EdgeProjectionForNewItem(binPacking, newItem, position); 169 52 } 170 171 #region Extreme point creation by using a point projection based method 172 173 /// <summary> 174 /// This method creates extreme points by using a point projection based method. 175 /// For each item there will be created three points and each of the points will be projected twice. 176 /// The direction of the projection depends on position of the point. 177 /// </summary> 178 /// <param name="binPacking"></param> 179 /// <param name="newItem"></param> 180 /// <param name="position"></param> 181 private void PointProjectionForNewItem(BinPacking3D binPacking, PackingItem newItem, PackingPosition position) { 182 int newWidth = newItem.Width; 183 int newDepth = newItem.Depth; 184 var binShape = binPacking.BinShape; 185 var sourcePoint = new PackingPosition(position.AssignedBin, position.X + newWidth, position.Y, position.Z); 186 PointProjection(binPacking, sourcePoint, ProjectDown); 187 PointProjection(binPacking, sourcePoint, ProjectBackward); 188 189 sourcePoint = new PackingPosition(position.AssignedBin, position.X, position.Y + newItem.Height, position.Z); 190 PointProjection(binPacking, sourcePoint, ProjectLeft); 191 PointProjection(binPacking, sourcePoint, ProjectBackward); 192 193 sourcePoint = new PackingPosition(position.AssignedBin, position.X, position.Y, position.Z + newDepth); 194 PointProjection(binPacking, sourcePoint, ProjectDown); 195 PointProjection(binPacking, sourcePoint, ProjectLeft); 196 } 197 198 199 /// <summary> 200 /// Projects a given point by using the given projection method to the neares item. 201 /// The given projection method returns a point which lies on a side of the nearest item in the direction. 202 /// </summary> 203 /// <param name="binPacking"></param> 204 /// <param name="position"></param> 205 /// <param name="projectionMethod"></param> 206 private void PointProjection(BinPacking3D binPacking, PackingPosition position, Func<BinPacking3D, Vector3D, Vector3D> projectionMethod) { 207 Vector3D sourcePoint = new Vector3D(position); 208 if (sourcePoint.X < binPacking.BinShape.Width && sourcePoint.Y < binPacking.BinShape.Height && sourcePoint.Z < binPacking.BinShape.Depth) { 209 Vector3D point = projectionMethod?.Invoke(binPacking, sourcePoint); 210 if (point != null) { 211 AddExtremePoint(binPacking, new PackingPosition(position.AssignedBin, point.X, point.Y, point.Z)); 212 } 213 } 214 } 215 #endregion 53 216 54 217 55 #region Extreme point creation by using an edge projection based method … … 245 83 } 246 84 #endregion 247 248 /// <summary> 249 /// Updates the residual spaces. 250 /// It removes not needed ones. 251 /// A residual space will be removed if the space is a subspace of another one and 252 /// the current one has no item below or both have an item below. 253 /// </summary> 254 /// <param name="binPacking"></param> 255 /// <param name="item"></param> 256 /// <param name="position"></param> 257 protected override void UpdateResidualSpace(BinPacking3D binPacking, PackingItem item, PackingPosition position) { 258 } 85 259 86 260 87 /// <summary> … … 609 436 return eps as IEnumerable<Vector3D>; 610 437 } 611 612 613 614 438 #endregion 615 616 /// <summary> 617 /// Calculates the residual spaces for an extreme point. 618 /// </summary> 619 /// <param name="binPacking"></param> 620 /// <param name="pos"></param> 621 /// <returns></returns> 622 protected override IEnumerable<ResidualSpace> CalculateResidualSpace(BinPacking3D binPacking, Vector3D pos) { 623 return ResidualSpaceCalculatorFactory.CreateCalculator().CalculateResidualSpaces(binPacking, pos); 624 } 439 625 440 } 626 627 628 441 } -
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/ExtremePointCreation/PointProjectionBasedEPCreator.cs
r15705 r15731 21 21 22 22 using HeuristicLab.Common; 23 using HeuristicLab.Problems.BinPacking3D.ExtremePointPruning; 23 24 using HeuristicLab.Problems.BinPacking3D.Geometry; 24 25 using HeuristicLab.Problems.BinPacking3D.ResidualSpaceCalculation; … … 40 41 /// This lock object is needed because of creating the extreme points in an parallel for loop. 41 42 /// </summary> 42 object _lockAddExtremePoint = new object();43 protected object _lockAddExtremePoint = new object(); 43 44 44 45 protected override void UpdateExtremePoints(BinPacking3D binPacking, PackingItem item, PackingPosition position) { 45 46 binPacking.ExtremePoints.Clear(); 46 47 48 if (binPacking.Items.Count <= 0) { 49 return; 50 } 51 47 52 // generate all new extreme points parallel. This speeds up the creator. 48 Parallel.ForEach(binPacking.Items, i => { 53 var items = binPacking.Items.OrderBy(x => x.Value.Layer); 54 Parallel.ForEach(items.Where(x => x.Value.Layer < item.Layer), i => { 49 55 PackingItem it = i.Value; 50 PackingPosition p = binPacking.Positions[i.Key];51 GenerateNewExtremePointsForItem(binPacking, it, p );56 PackingPosition pos = binPacking.Positions[i.Key]; 57 GenerateNewExtremePointsForItem(binPacking, it, pos); 52 58 }); 53 59 ExtremePointPruningFactory.CreatePruning().PruneExtremePoints(ExtremePointPruningMethod.PruneBehind, new List<BinPacking3D>() { binPacking }); 60 61 Parallel.ForEach(items.Where(x => x.Value.Layer >= item.Layer), i => { 62 PackingItem it = i.Value; 63 PackingPosition pos = binPacking.Positions[i.Key]; 64 GenerateNewExtremePointsForItem(binPacking, it, pos); 65 }); 66 54 67 // remove not needed extreme points. 55 68 foreach (var extremePoint in binPacking.ExtremePoints.ToList()) { … … 178 191 /// <param name="newItem"></param> 179 192 /// <param name="position"></param> 180 pr ivatevoid PointProjectionForNewItem(BinPacking3D binPacking, PackingItem newItem, PackingPosition position) {193 protected void PointProjectionForNewItem(BinPacking3D binPacking, PackingItem newItem, PackingPosition position) { 181 194 int newWidth = newItem.Width; 182 195 int newDepth = newItem.Depth; … … 210 223 AddExtremePoint(binPacking, new PackingPosition(position.AssignedBin, point.X, point.Y, point.Z)); 211 224 } 212 }213 }214 #endregion215 216 #region Extreme point creation by using an edge projection based method217 218 /// <summary>219 /// This method creates extreme points be projecting the edges of a given item220 /// - left221 /// - back222 /// - down.223 /// A extreme point will be created, if an edge instersects with an edge of another item.224 /// </summary>225 /// <param name="binPacking"></param>226 /// <param name="newItem"></param>227 /// <param name="position"></param>228 private void EdgeProjectionForNewItem(BinPacking3D binPacking, PackingItem newItem, PackingPosition position) {229 int newWidth = newItem.Width;230 int newDepth = newItem.Depth;231 var binShape = binPacking.BinShape;232 233 foreach (var ep in GetEpsOnLeft(binPacking, newItem, position)) {234 AddExtremePoint(binPacking, ep.Key);235 }236 237 foreach (var ep in GetEpsBelow(binPacking, newItem, position)) {238 AddExtremePoint(binPacking, ep.Key);239 }240 241 foreach (var ep in GetEpsBehind(binPacking, newItem, position)) {242 AddExtremePoint(binPacking, ep.Key);243 225 } 244 226 } … … 277 259 } 278 260 279 /// <summary>280 /// Returns true if an item is in the residual space of a given extrem point281 /// </summary>282 /// <param name="rs">KeyValuePair with the position of the extreme point and the size of the residual space</param>283 /// <param name="item">Given Item</param>284 /// <param name="position">Given position</param>285 /// <returns></returns>286 private bool ItemIsInRs(KeyValuePair<PackingPosition, ResidualSpace> rs, PackingItem item, PackingPosition position) {287 return GetVertices(item, position).Where(pos => pos.IsInside(rs.Key, rs.Value)).Any();288 }289 290 protected IEnumerable<Tuple<PackingPosition, PackingItem>> GetItemsBelow(BinPacking3D binPacking, PackingItem item, PackingPosition position) {291 return binPacking.Items.Select(x => new {292 Item = x.Value,293 Position = binPacking.Positions[x.Key]294 }).Where(x => x.Position.Y < position.Y)295 .Select(x => Tuple.Create(x.Position, x.Item));296 }297 298 protected IEnumerable<Tuple<PackingPosition, PackingItem>> GetItemsBehind(BinPacking3D binPacking, PackingItem item, PackingPosition position) {299 return binPacking.Items.Select(x => new {300 Item = x.Value,301 Position = binPacking.Positions[x.Key]302 }).Where(x => x.Position.Z < position.Z)303 .Select(x => Tuple.Create(x.Position, x.Item));304 }305 306 protected IEnumerable<Tuple<PackingPosition, PackingItem>> GetItemsOnLeft(BinPacking3D binPacking, PackingItem item, PackingPosition position) {307 return binPacking.Items.Select(x => new {308 Item = x.Value,309 Position = binPacking.Positions[x.Key]310 }).Where(x => x.Position.X < position.X)311 .Select(x => Tuple.Create(x.Position, x.Item));312 }313 314 /// <summary>315 /// Returns the extreme points and its related residual spaces on the left side of an given item.316 /// This extreme points are being created by intersecting two edges on the left side of the given item317 /// (left - in front, left - on top) with all edges on the right side of all other items int the bin packing.318 /// </summary>319 /// <param name="item"></param>320 /// <param name="position"></param>321 /// <returns></returns>322 private IDictionary<PackingPosition, IEnumerable<ResidualSpace>> GetEpsOnLeft(BinPacking3D binPacking, PackingItem item, PackingPosition position) {323 var eps = new SortedList<PackingPosition, IEnumerable<ResidualSpace>>();324 IEnumerable<Tuple<PackingPosition, PackingItem>> items = GetItemsOnLeft(binPacking, item, position);325 var edges = GetProjectionEdgesOnLeft(item, position);326 327 foreach (var otherItem in items) {328 if (position.Equals(otherItem.Item1)) {329 continue;330 }331 332 var otherItemEdges = GetEdgesOnRight(otherItem.Item2, otherItem.Item1);333 // left - in front334 foreach (var ep in IntersectionsForItem(edges[0], otherItemEdges, new Vector3D(1, 0, 0))) {335 if (ep.X < binPacking.BinShape.Width && ep.Y < binPacking.BinShape.Height && ep.Z < binPacking.BinShape.Depth) {336 // As this edge has a vertical direction, every point of intersection won't have an item below.337 // So finally it is being projected down.338 var point = ProjectDown(binPacking, ProjectLeft(binPacking, ep));339 var residualSpaces = CalculateResidualSpace(binPacking, point);340 var newExtremePoint = point.ToPackingPosition(position.AssignedBin);341 if (residualSpaces.Count() > 0 && !eps.ContainsKey(newExtremePoint)) {342 eps.Add(newExtremePoint, residualSpaces);343 }344 }345 }346 347 // left - on top348 foreach (var ep in IntersectionsForItem(edges[1], otherItemEdges, new Vector3D(1, 0, 0))) {349 if (ep.X < binPacking.BinShape.Width && ep.Y < binPacking.BinShape.Height && ep.Z < binPacking.BinShape.Depth) {350 var point = ProjectLeft(binPacking, ep);351 var residualSpaces = CalculateResidualSpace(binPacking, point);352 var newExtremePoint = point.ToPackingPosition(position.AssignedBin);353 if (residualSpaces.Count() > 0 && !eps.ContainsKey(newExtremePoint)) {354 eps.Add(newExtremePoint, residualSpaces);355 }356 }357 }358 }359 return eps;360 }361 362 363 /// <summary>364 /// Returns the extreme points and its related residual spaces below of an given item.365 /// This extreme points are being created by intersecting two edges below of the given item366 /// (below - in front, below - right) with all edges on top side of all other items int the bin packing.367 /// </summary>368 /// <param name="item"></param>369 /// <param name="position"></param>370 /// <returns></returns>371 private IDictionary<PackingPosition, IEnumerable<ResidualSpace>> GetEpsBelow(BinPacking3D binPacking, PackingItem item, PackingPosition position) {372 var eps = new SortedList<PackingPosition, IEnumerable<ResidualSpace>>();373 IEnumerable<Tuple<PackingPosition, PackingItem>> items = GetItemsBelow(binPacking, position);374 var edges = GetProjectionEdgesBelow(item, position);375 376 foreach (var otherItem in items) {377 if (position.Equals(otherItem.Item1)) {378 continue;379 }380 381 var otherItemEdges = GetEdgesOnTop(otherItem.Item2, otherItem.Item1);382 // below - in front383 foreach (var ep in IntersectionsForItem(edges[0], otherItemEdges, new Vector3D(0, 1, 0))) {384 if (ep.X < binPacking.BinShape.Width && ep.Y < binPacking.BinShape.Height && ep.Z < binPacking.BinShape.Depth) {385 var point = ProjectDown(binPacking, ep);386 var residualSpaces = CalculateResidualSpace(binPacking, point);387 var newExtremePoint = point.ToPackingPosition(position.AssignedBin);388 if (residualSpaces.Count() > 0 && !eps.ContainsKey(newExtremePoint)) {389 eps.Add(newExtremePoint, residualSpaces);390 }391 }392 }393 394 // below - right395 foreach (var ep in IntersectionsForItem(edges[1], otherItemEdges, new Vector3D(0, 1, 0))) {396 if (ep.X < binPacking.BinShape.Width && ep.Y < binPacking.BinShape.Height && ep.Z < binPacking.BinShape.Depth) {397 var point = ProjectDown(binPacking, ep);398 var residualSpaces = CalculateResidualSpace(binPacking, point);399 var newExtremePoint = point.ToPackingPosition(position.AssignedBin);400 if (residualSpaces.Count() > 0 && !eps.ContainsKey(newExtremePoint)) {401 eps.Add(newExtremePoint, residualSpaces);402 }403 }404 }405 }406 return eps;407 }408 409 /// <summary>410 /// Returns the extreme points and its related residual spaces below of an given item.411 /// This extreme points are being created by intersecting two edges below of the given item412 /// (right - behind, on top - behind) with all edges on top side of all other items int the bin packing.413 /// </summary>414 /// <param name="item"></param>415 /// <param name="position"></param>416 /// <returns></returns>417 private IDictionary<PackingPosition, IEnumerable<ResidualSpace>> GetEpsBehind(BinPacking3D binPacking, PackingItem item, PackingPosition position) {418 var eps = new SortedList<PackingPosition, IEnumerable<ResidualSpace>>();419 IEnumerable<Tuple<PackingPosition, PackingItem>> items = GetItemsBehind(binPacking, position);420 var edges = GetProjectionEdgesBehind(item, position);421 422 foreach (var otherItem in items) {423 if (position.Equals(otherItem.Item1)) {424 continue;425 }426 427 var otherItemEdges = GetEdgesInFront(otherItem.Item2, otherItem.Item1);428 // right - behind429 foreach (var ep in IntersectionsForItem(edges[0], otherItemEdges, new Vector3D(0, 0, 1))) {430 if (ep.X < binPacking.BinShape.Width && ep.Y < binPacking.BinShape.Height && ep.Z < binPacking.BinShape.Depth) {431 // As this edge has a vertical direction, every point of intersection won't have an item below.432 // So finally it is being projected down.433 var point = ProjectDown(binPacking, ProjectBackward(binPacking, ep));434 var residualSpaces = CalculateResidualSpace(binPacking, point);435 var newExtremePoint = point.ToPackingPosition(position.AssignedBin);436 if (residualSpaces.Count() > 0 && !eps.ContainsKey(newExtremePoint)) {437 eps.Add(newExtremePoint, residualSpaces);438 }439 }440 }441 442 // on top - behind443 foreach (var ep in IntersectionsForItem(edges[1], otherItemEdges, new Vector3D(0, 0, 1))) {444 if (ep.X < binPacking.BinShape.Width && ep.Y < binPacking.BinShape.Height && ep.Z < binPacking.BinShape.Depth) {445 var point = ProjectBackward(binPacking, ep);446 var residualSpaces = CalculateResidualSpace(binPacking, point);447 var newExtremePoint = point.ToPackingPosition(position.AssignedBin);448 if (residualSpaces.Count() > 0 && !eps.ContainsKey(newExtremePoint)) {449 eps.Add(newExtremePoint, residualSpaces);450 }451 }452 }453 }454 return eps;455 }456 457 #region Methods for getting the edges for items458 459 /// <summary>460 /// Returns an array of packing position which represents the vertices of an item.461 /// The position of a vertex in the array is mapped to an item as followed:462 /// 4----------5463 /// /| /|464 /// / | / |465 /// / 0-------/--1466 /// 6--/-------7 /467 /// | / | /468 /// |/ |/469 /// 2----------3470 ///471 /// 0 = (0,0,0)472 /// </summary>473 /// <param name="item"></param>474 /// <param name="position"></param>475 /// <returns></returns>476 private Vector3D[] GetVertices(PackingItem item, PackingPosition position) {477 int width = item.Width;478 int depth = item.Depth;479 return new Vector3D[] {480 new Vector3D(position.X + 0, position.Y + 0, position.Z + 0), // (0,0,0)481 new Vector3D(position.X + width, position.Y + 0, position.Z + 0), // (x,0,0)482 new Vector3D(position.X + 0, position.Y + 0, position.Z + depth), // (0,0,z)483 new Vector3D(position.X + width, position.Y + 0, position.Z + depth), // (x,0,z)484 485 new Vector3D(position.X + 0, position.Y + item.Height, position.Z + 0), // (0,y,0)486 new Vector3D(position.X + width, position.Y + item.Height, position.Z + 0), // (x,y,0)487 new Vector3D(position.X + 0, position.Y + item.Height, position.Z + depth), // (0,y,z)488 new Vector3D(position.X + width, position.Y + item.Height, position.Z + depth), //(x,y,z)489 };490 }491 492 private Edge3D[] GetProjectionEdgesOnLeft(PackingItem item, PackingPosition position) {493 Vector3D[] points = GetVertices(item, position);494 495 return new Edge3D[] {496 new Edge3D(points[2], points[6]),497 new Edge3D(points[6], points[4])498 };499 }500 501 private Edge3D[] GetProjectionEdgesBelow(PackingItem item, PackingPosition position) {502 Vector3D[] points = GetVertices(item, position);503 504 return new Edge3D[] {505 new Edge3D(points[2], points[3]),506 new Edge3D(points[3], points[1])507 };508 }509 510 private Edge3D[] GetProjectionEdgesBehind(PackingItem item, PackingPosition position) {511 Vector3D[] points = GetVertices(item, position);512 513 return new Edge3D[] {514 new Edge3D(points[1], points[5]),515 new Edge3D(points[5], points[4])516 };517 }518 519 /// <summary>520 /// Returns an array of edges which contains all edges of the rigth side of an given item.521 /// </summary>522 /// <param name="item"></param>523 /// <param name="position"></param>524 /// <returns></returns>525 private Edge3D[] GetEdgesOnRight(PackingItem item, PackingPosition position) {526 Vector3D[] points = GetVertices(item, position);527 528 return new Edge3D[] {529 new Edge3D(points[1], points[5]),530 new Edge3D(points[5], points[7]),531 new Edge3D(points[7], points[3]),532 new Edge3D(points[3], points[1])533 };534 }535 536 /// <summary>537 /// Returns an array of edges which contains all edges on the top of an given item.538 /// </summary>539 /// <param name="item"></param>540 /// <param name="position"></param>541 /// <returns></returns>542 private Edge3D[] GetEdgesOnTop(PackingItem item, PackingPosition position) {543 Vector3D[] points = GetVertices(item, position);544 545 return new Edge3D[] {546 new Edge3D(points[4], points[5]),547 new Edge3D(points[5], points[7]),548 new Edge3D(points[7], points[6]),549 new Edge3D(points[6], points[4])550 };551 }552 553 /// <summary>554 /// Returns an array of edges which contains all edges in front of an given item.555 /// </summary>556 /// <param name="item"></param>557 /// <param name="position"></param>558 /// <returns></returns>559 private Edge3D[] GetEdgesInFront(PackingItem item, PackingPosition position) {560 Vector3D[] points = GetVertices(item, position);561 562 return new Edge3D[] {563 new Edge3D(points[2], points[3]),564 new Edge3D(points[3], points[7]),565 new Edge3D(points[7], points[6]),566 new Edge3D(points[6], points[2])567 };568 }569 570 #endregion571 572 573 #region Intersections574 575 /// <summary>576 /// Returns a collection of points where a given edge (projectedEdge) intersects with other edges.577 /// The given edge (projectedEdge) will be projected by using the given vector direction578 /// and a edge of the given edge collection.579 /// The returned collecten can be empty.580 /// </summary>581 /// <param name="projectedEdge"></param>582 /// <param name="edges"></param>583 /// <param name="direction"></param>584 /// <returns></returns>585 private IEnumerable<Vector3D> IntersectionsForItem(Edge3D projectedEdge, Edge3D[] edges, Vector3D direction = null) {586 IList<Vector3D> eps = new List<Vector3D>();587 foreach (var edge in edges) {588 Edge3D e = projectedEdge;589 if (direction != null) {590 if (direction.X != 0) {591 e.Start.X = edge.Start.X;592 e.End.X = edge.End.X;593 } else if (direction.Y != 0) {594 e.Start.Y = edge.Start.Y;595 e.End.Y = edge.End.Y;596 } else if (direction.Z != 0) {597 e.Start.Z = edge.Start.Z;598 e.End.Z = edge.End.Z;599 }600 }601 602 var ep = edge.Intersects(e);603 if (ep != null) {604 eps.Add(ep);605 }606 }607 608 return eps as IEnumerable<Vector3D>;609 }610 611 612 613 #endregion614 261 615 262 /// <summary> -
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/ExtremePointPruning/ExtremePointPruning.cs
r15618 r15731 73 73 } 74 74 } 75 76 75 } 77 76 } -
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/Instances/ThreeDInstanceParser.cs
r15646 r15731 59 59 RotateEnabled = rotate == 0 ? false : true, 60 60 TiltEnabled = tilt == 0 ? false : true, 61 IsStackabel = stack == 0 ? false : true 61 IsStackabel = stack == 0 ? false : true, 62 SupportedWeight = weight 62 63 }; 63 64 Items.Add(item); -
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/Material/MaterialType.cs
r15705 r15731 8 8 9 9 public enum MaterialType { 10 EuroPallet, 10 EuroPallet = 0, 11 IncaPallet, 11 12 Wood, 13 Paperboard, 12 14 Steel, 13 Paperboard 15 ScreenPrintingPlate, 16 NonSlipMat, 17 Carriage 14 18 } 15 19 } -
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/Packer/BinPacker.cs
r15705 r15731 125 125 return clonedItems; 126 126 } 127 127 128 128 } 129 129 } -
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/Packer/BinPackerFactory.cs
r15617 r15731 53 53 binPacker = new BinPackerMinRSLeft(); 54 54 break; 55 case FittingMethod.FormClosure: 56 binPacker = new BinPackerFormClosure(); 57 break; 55 58 default: 56 59 throw new ArgumentException("Unknown fitting method: " + fittingMethod); -
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/Packer/BinPackerMinRSLeft.cs
r15705 r15731 94 94 ExtremePointPruningFactory.CreatePruning().PruneExtremePoints(epPruningMethod, packingList); 95 95 } 96 96 97 97 98 /// <summary> … … 107 108 var remainingNotWeightSupportedItems = new List<int>(); 108 109 foreach (var itemId in new List<int>(remainingIds)) { 109 var item = items[itemId]; 110 var item = items[itemId]; 110 111 111 112 // If an item doesn't support any weight it should have a minimum waste of the residual space. -
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/PackingItem.cs
r15705 r15731 295 295 296 296 public bool SupportsStacking(IPackingItem other) { 297 return ((other.Layer < this.Layer) || (other.Layer.Equals(this.Layer) && other.Weight <= this.Weight));297 return other.Layer <= this.Layer && SupportedWeight > 0; 298 298 } 299 299 #endregion -
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/Solution.cs
r15646 r15731 66 66 } 67 67 68 if (evaluatedThis.Item4 > evaluatedOther.Item4) { 69 return false; 70 } 71 68 72 if (evaluatedThis.Item3 > evaluatedOther.Item3) { 69 73 return false; -
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/Sorting/PermutationPackingItemSorter.cs
r15705 r15731 136 136 return new Permutation(PermutationTypes.Absolute, 137 137 items.Select((v, i) => new { Index = i, Item = v }) 138 .OrderBy Descending(x => x.Item.Layer)138 .OrderBy(x => x.Item.Layer) 139 139 .ThenByDescending(x => x.Item.Depth * x.Item.Width * x.Item.Height) 140 140 .ThenByDescending(x => x.Item.Height) … … 150 150 return new Permutation(PermutationTypes.Absolute, 151 151 items.Select((v, i) => new { Index = i, Item = v }) 152 .OrderBy Descending(x => x.Item.Layer)152 .OrderBy(x => x.Item.Layer) 153 153 .ThenByDescending(x => x.Item.Height) 154 154 .ThenByDescending(x => x.Item.Depth * x.Item.Width * x.Item.Height) … … 164 164 return new Permutation(PermutationTypes.Absolute, 165 165 items.Select((v, i) => new { Index = i, Item = v }) 166 .OrderBy Descending(x => x.Item.Layer)166 .OrderBy(x => x.Item.Layer) 167 167 .ThenByDescending(x => x.Item.Depth * x.Item.Width) 168 168 .ThenByDescending(x => x.Item.Height) … … 178 178 return new Permutation(PermutationTypes.Absolute, 179 179 items.Select((v, i) => new { Index = i, Item = v }) 180 .OrderBy Descending(x => x.Item.Layer)180 .OrderBy(x => x.Item.Layer) 181 181 .ThenByDescending(x => x.Item.Height) 182 182 .ThenByDescending(x => x.Item.Depth * x.Item.Width) … … 198 198 items.Select((v, i) => new { Index = i, Item = v, ClusterId = (int)(Math.Ceiling(v.Width * v.Depth / clusterRange)) }) 199 199 .GroupBy(x => x.ClusterId) 200 .Select(x => new { Cluster = x.Key, Items = x.OrderBy Descending(z => z.Item.Layer).ThenByDescending(y => y.Item.Height).ToList() })200 .Select(x => new { Cluster = x.Key, Items = x.OrderBy(z => z.Item.Layer).ThenByDescending(y => y.Item.Height).ToList() }) 201 201 .OrderByDescending(x => x.Cluster) 202 202 .SelectMany(x => x.Items) … … 218 218 items.Select((v, i) => new { Index = i, Item = v, ClusterId = (int)(Math.Ceiling(v.Height / clusterRange2)) }) 219 219 .GroupBy(x => x.ClusterId) 220 .Select(x => new { Cluster = x.Key, Items = x.OrderBy Descending(z => z.Item.Layer).ThenByDescending(y => y.Item.Depth * y.Item.Width).ToList() })220 .Select(x => new { Cluster = x.Key, Items = x.OrderBy(z => z.Item.Layer).ThenByDescending(y => y.Item.Depth * y.Item.Width).ToList() }) 221 221 .OrderByDescending(x => x.Cluster) 222 222 .SelectMany(x => x.Items) -
branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/HeuristicLab.Problems.BinPacking-3.3.csproj
r15646 r15731 113 113 <Compile Include="3D\ExtremePointPruning\IExtremePointPruning.cs" /> 114 114 <Compile Include="3D\Geometry\Edge3D.cs" /> 115 <Compile Include="3D\ Material\FrictionalCoefficientTable.cs" />115 <Compile Include="3D\Graph\VertexWithItemId.cs" /> 116 116 <Compile Include="3D\Material\MaterialType.cs" /> 117 117 <Compile Include="3D\Packer\BinPacker.cs" /> … … 128 128 <Compile Include="3D\Packer\BinPackerFreeVolumeBestFit.cs" /> 129 129 <Compile Include="3D\Packer\BinPackerMinRSLeft.cs" /> 130 <Compile Include="3D\Packer\BinPackerFormClosure.cs" /> 130 131 <Compile Include="3D\Packer\BinPackerResidualSpaceBestFit.cs" /> 131 132 <Compile Include="3D\Instances\ThreeDInstanceDescriptor.cs" /> -
branches/2817-BinPackingSpeedup/HeuristicLab.Tests/HeuristicLab.Problems.Bin-Packing-3.3/3D/Instances/ThreeDInstanceParserTest.cs
r15554 r15731 67 67 Assert.AreEqual(expected.Height, actual.Height); 68 68 Assert.AreEqual(expected.Depth, actual.Depth); 69 Assert.AreEqual(expected. Material, actual.Material);69 Assert.AreEqual(expected.Layer, actual.Layer); 70 70 Assert.AreEqual(expected.Weight, actual.Weight); 71 71 } … … 94 94 Assert.AreEqual(expected.Height, actual.Height); 95 95 Assert.AreEqual(expected.Depth, actual.Depth); 96 Assert.AreEqual(expected. Material, actual.Material);96 Assert.AreEqual(expected.Layer, actual.Layer); 97 97 Assert.AreEqual(expected.Weight, actual.Weight); 98 98 }
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