1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2015 Joseph Helm and Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 |
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22 |
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23 | using System;
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24 | using HeuristicLab.Problems.BinPacking.Interfaces;
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25 | using HeuristicLab.Core;
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26 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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27 | using HeuristicLab.Common;
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28 | using HeuristicLab.Problems.BinPacking.Dimensions;
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29 |
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30 | namespace HeuristicLab.Problems.BinPacking.Shapes {
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31 | [Item("RectangularPackingShape", "Represents the rectangular measures (width, height) of a two-dimensional bin-packing object.")]
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32 | [StorableClass]
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33 | public abstract class RectangularPackingShape : PackingShape<TwoDimensionalPacking>, IRegularPackingShape, IComparable<RectangularPackingShape> {
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34 | #region Properties
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35 | [Storable]
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36 | public int Height { get; set; }
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37 |
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38 | [Storable]
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39 | public int Width { get; set; }
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40 | #endregion
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41 |
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42 | #region Helpers
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43 | public override TwoDimensionalPacking Origin { get { return new TwoDimensionalPacking(0, 0, 0); } }
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44 | public override int MultipliedMeasures { get { return Height * Width; } }
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45 |
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46 | public override bool EnclosesPoint(TwoDimensionalPacking myPosition, TwoDimensionalPacking checkedPoint) {
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47 | return (myPosition.X <= checkedPoint.X &&
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48 | (myPosition.X + (myPosition.Rotated ? Height : Width) - 1) >= checkedPoint.X &&
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49 | myPosition.Y <= checkedPoint.Y &&
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50 | (myPosition.Y + (myPosition.Rotated ? Width : Height) - 1) >= checkedPoint.Y);
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51 | }
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52 | public override bool Encloses(TwoDimensionalPacking checkedPosition, PackingShape<TwoDimensionalPacking> checkedShape) {
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53 | return Encloses(checkedPosition, (RectangularPackingShape)checkedShape);
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54 | }
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55 | private bool Encloses(TwoDimensionalPacking checkedPosition, RectangularPackingShape checkedShape) {
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56 | return Encloses(new RectangleDiagonal(this), new RectangleDiagonal(checkedPosition, checkedShape));
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57 | }
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58 | private bool Encloses(RectangleDiagonal r1, RectangleDiagonal r2) {
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59 | return (r1.x1 <= r2.x1 &&
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60 | r1.x2 >= r2.x2 &&
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61 | r1.y1 <= r2.y1 &&
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62 | r1.y2 >= r2.y2);
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63 | }
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64 |
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65 | public override bool Overlaps(TwoDimensionalPacking myPosition, TwoDimensionalPacking checkedPosition, PackingShape<TwoDimensionalPacking> checkedShape) {
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66 | return Overlaps(myPosition, checkedPosition, (RectangularPackingShape)checkedShape);
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67 | }
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68 | private bool Overlaps(TwoDimensionalPacking myPosition, TwoDimensionalPacking checkedPosition, RectangularPackingShape checkedShape) {
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69 | return Overlaps(new RectangleDiagonal(myPosition, this), new RectangleDiagonal(checkedPosition, checkedShape));
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70 | }
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71 | private bool Overlaps(RectangleDiagonal r1, RectangleDiagonal r2) {
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72 | return !(r1.x1 > r2.x2 ||
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73 | r1.y1 > r2.y2 ||
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74 | r1.x2 < r2.x1 ||
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75 | r1.y2 < r2.y1);
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76 | }
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77 |
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78 | public void ApplyHorizontalOrientation() {
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79 | if (Width < Height) {
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80 | var aux = Width;
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81 | Width = Height;
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82 | Height = aux;
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83 | }
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84 | }
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85 | #endregion
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86 |
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87 | protected RectangularPackingShape() : base() { }
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88 | protected RectangularPackingShape(int width, int height)
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89 | : base() {
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90 | this.Height = height;
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91 | this.Width = width;
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92 | }
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93 |
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94 | public override void InitializeFromMeasures(int[] measures) {
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95 | if (measures.Length != 2)
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96 | throw new InvalidOperationException("Nr of measures does not fit shape-dimension.");
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97 | this.Width = measures[0];
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98 | this.Height = measures[1];
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99 | }
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100 |
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101 |
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102 | [StorableConstructor]
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103 | protected RectangularPackingShape(bool deserializing) : base(deserializing) { }
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104 | protected RectangularPackingShape(RectangularPackingShape original, Cloner cloner)
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105 | : base(original, cloner) {
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106 | this.Width = original.Width;
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107 | this.Height = original.Height;
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108 | }
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109 |
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110 | public override string ToString() {
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111 | return String.Format("RectangularPackingShape ({0}, {1})", this.Width, this.Height);
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112 | }
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113 |
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114 | #region IComparable<RectangularPackingShape> Members
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115 |
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116 | public int CompareTo(RectangularPackingShape other) {
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117 | int result = 0;// this.MultipliedMeasures.CompareTo(other.MultipliedMeasures);
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118 | if (result == 0) {
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119 | result = this.Width.CompareTo(other.Width);
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120 | if (result == 0)
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121 | result = this.Height.CompareTo(other.Height);
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122 | }
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123 | return result;
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124 | }
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125 |
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126 | public int CompareTo(object obj) {
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127 | var other = obj as RectangularPackingShape;
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128 | if (other != null) return CompareTo(other);
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129 | else throw new ArgumentException(string.Format("Cannot compare to object {0}", obj), "obj");
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130 | }
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131 |
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132 | #endregion
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133 |
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134 | public override int[] ToArray() {
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135 | return new int[] { Width, Height };
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136 | }
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137 |
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138 | private struct RectangleDiagonal {
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139 | public int x1;
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140 | public int y1;
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141 | public int x2;
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142 | public int y2;
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143 | public RectangleDiagonal(RectangularPackingShape myShape) : this(new TwoDimensionalPacking(0, 0, 0), myShape) { }
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144 | public RectangleDiagonal(TwoDimensionalPacking myPosition, RectangularPackingShape myShape) {
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145 | x1 = myPosition.X;
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146 | y1 = myPosition.Y;
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147 | x2 = myPosition.X + (myPosition.Rotated ? myShape.Height : myShape.Width) - 1;
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148 | y2 = myPosition.Y + (myPosition.Rotated ? myShape.Width : myShape.Height) - 1;
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149 | }
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150 | }
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151 | }
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152 | }
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