1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2015 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 | using HeuristicLab.Common;
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23 | using HeuristicLab.Core;
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24 | using HeuristicLab.Data;
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25 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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26 | using System;
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27 | using System.Collections.Generic;
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28 | using System.Drawing;
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29 | using System.Globalization;
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30 | using System.Linq;
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31 | using HEAL.Attic;
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32 |
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33 | namespace HeuristicLab.BioBoost.ProblemDescription {
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34 |
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35 | [Item("DistanceMatrix", "Represents a space-efficient, symmetric distance matrix of double values.")]
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36 | [StorableType("108ABFA4-9CA2-43B5-850A-3B3F13BC271A")]
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37 | public class DistanceMatrix : NamedItem, IStringConvertibleMatrix {
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38 |
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39 | public new static Image StaticItemImage {
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40 | get { return Common.Resources.VSImageLibrary.Class; }
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41 | }
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42 |
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43 | [Storable]
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44 | public int Size { get; private set; }
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45 |
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46 | [Storable]
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47 | public double Max { get; private set; }
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48 |
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49 | [Storable]
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50 | public double Min { get; private set; }
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51 |
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52 | [Storable]
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53 | private IEnumerable<double> Values_Persistence {
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54 | get { return values; }
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55 | set { values = new List<double>(value);}
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56 | }
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57 |
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58 | private List<double> values;
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59 |
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60 | #region Construction & Cloning
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61 | [StorableConstructor]
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62 | protected DistanceMatrix(StorableConstructorFlag _) : base(_) { }
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63 | protected DistanceMatrix(DistanceMatrix original, Cloner cloner)
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64 | : base(original, cloner) {
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65 | values = original.values.ToList();
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66 | Size = original.Size;
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67 | Min = original.Min;
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68 | Max = original.Max;
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69 | Name = original.Name;
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70 | }
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71 | public DistanceMatrix() {
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72 | values = new List<double>();
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73 | Size = 0;
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74 | Min = Double.NaN;
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75 | Max = Double.NaN;
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76 | Name = this.ItemName;
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77 | }
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78 | public override IDeepCloneable Clone(Cloner cloner) {
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79 | return new DistanceMatrix(this, cloner);
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80 | }
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81 | #endregion
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82 |
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83 | protected virtual bool Validate(string value, out string errorMessage) {
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84 | double val;
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85 | if (!double.TryParse(value, out val)) {
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86 | errorMessage = string.Format(
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87 | "Invalid Value (Valid Value Format: '{0}')",
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88 | FormatPatterns.GetDoubleFormatPattern());
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89 | return false;
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90 | } else {
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91 | errorMessage = string.Empty;
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92 | return true;
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93 | }
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94 | }
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95 |
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96 | protected int GetLinearIndex(int row, int col) {
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97 | if (row >= col)
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98 | return row*(row + 1)/2 + col;
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99 | else
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100 | return col*(col + 1)/2 + row;
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101 | }
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102 |
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103 | public double this[int row, int col] {
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104 | get {
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105 | var value = values[GetLinearIndex(row, col)];
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106 | return value >= 0 ? value :
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107 | row == col ? Max*2 : Max*4;
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108 | }
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109 | set {
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110 | var i = GetLinearIndex(row, col);
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111 | var oldValue = values[i];
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112 | values[GetLinearIndex(row, col)] = value;
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113 | CheckBounds(oldValue, value);
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114 | OnItemChanged(row, col);
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115 | OnToStringChanged();
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116 | }
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117 | }
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118 |
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119 | protected void CheckBounds(double oldValue, double value) {
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120 | if (Double.IsNaN(Max) || value > Max) {
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121 | Max = value;
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122 | } else if (oldValue == Max) {
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123 | Max = values.Max();
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124 | }
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125 | if (Double.IsNaN(Min) || value < Min) {
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126 | Min = value;
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127 | } else if (oldValue == Min) {
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128 | Min = values.Min();
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129 | }
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130 | }
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131 |
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132 | protected virtual string GetValue(int rowIndex, int columIndex) {
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133 | return this[rowIndex, columIndex].ToString(CultureInfo.InvariantCulture);
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134 | }
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135 |
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136 | protected virtual bool SetValue(string value, int rowIndex, int columnIndex) {
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137 | double val;
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138 | if (double.TryParse(value, out val)) {
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139 | this[rowIndex, columnIndex] = val;
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140 | return true;
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141 | } else {
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142 | return false;
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143 | }
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144 | }
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145 |
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146 | public void Load(IEnumerable<Tuple<string, string, double>> labeledValues, IEnumerable<string> finalOrder, double defaultValue) {
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147 | var dict = labeledValues.ToDictionary(t => new {x = t.Item1, y = t.Item2}, t => t.Item3);
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148 | var labels = finalOrder.ToList();
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149 | Size = labels.Count;
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150 | values.Clear();
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151 | for (int i = 0; i<Size; i++) {
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152 | for (int j = 0; j<=i; j++) {
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153 | double value;
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154 | if (dict.TryGetValue(new { x = labels[i], y = labels[j] }, out value)) {
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155 | values.Add(value);
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156 | } else if (dict.TryGetValue(new { x = labels[j], y = labels[i] }, out value)) {
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157 | values.Add(value);
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158 | } else {
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159 | values.Add(defaultValue);
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160 | }
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161 | }
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162 | }
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163 | Min = values.Min();
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164 | Max = values.Max();
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165 | OnRowNamesChanged();
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166 | OnColumnNamesChanged();
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167 | OnRowsChanged();
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168 | OnColumnsChanged();
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169 | OnReset();
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170 | }
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171 |
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172 | public DistanceMatrix CopyAndRemoveIndices(IEnumerable<int> indices) {
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173 | var idx = new HashSet<int>(indices);
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174 | int ii = 0, jj = 0;
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175 | var dm = new DistanceMatrix {Size = Size - idx.Count};
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176 | for (int i = 0; i < Size; i++) {
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177 | if (!idx.Contains(i)) {
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178 | for (int j = 0; j <= i; j++) {
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179 | if (!idx.Contains(j)) {
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180 | //dm[ii, jj] = this[i, j];
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181 | dm.values.Add(this[i, j]);
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182 | }
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183 | jj++;
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184 | }
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185 | }
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186 | ii++;
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187 | }
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188 | dm.Min = dm.values.Count > 0 ? dm.values.Min() : 0;
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189 | dm.Max = dm.values.Count > 0 ? dm.values.Max() : 0;
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190 | OnRowNamesChanged();
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191 | OnColumnNamesChanged();
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192 | OnRowsChanged();
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193 | OnColumnsChanged();
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194 | OnReset();
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195 | return dm;
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196 | }
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197 |
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198 | #region IStringConvertibleMatrix Members
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199 |
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200 | public int Rows { get { return Size; } set { throw new NotImplementedException(); } }
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201 | public int Columns { get { return Size; } set { throw new NotImplementedException(); } }
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202 | public bool ReadOnly { get { return true; } }
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203 |
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204 | public IEnumerable<string> RowNames {
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205 | get { return Enumerable.Range(0, Size).Select(i => i.ToString(CultureInfo.InvariantCulture)); }
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206 | set { throw new NotImplementedException(); }
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207 | }
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208 | public IEnumerable<string> ColumnNames {
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209 | get { return RowNames; }
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210 | set { throw new NotImplementedException(); }
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211 | }
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212 | public bool SortableView {
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213 | get { return false; }
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214 | set { throw new NotImplementedException(); }
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215 | }
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216 |
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217 |
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218 | bool IStringConvertibleMatrix.Validate(string value, out string errorMessage) {
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219 | return Validate(value, out errorMessage);
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220 | }
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221 | string IStringConvertibleMatrix.GetValue(int rowIndex, int columIndex) {
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222 | return GetValue(rowIndex, columIndex);
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223 | }
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224 | bool IStringConvertibleMatrix.SetValue(string value, int rowIndex, int columnIndex) {
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225 | return SetValue(value, rowIndex, columnIndex);
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226 | }
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227 |
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228 | public event EventHandler RowsChanged;
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229 | public event EventHandler ColumnsChanged;
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230 | public event EventHandler RowNamesChanged;
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231 | public event EventHandler ColumnNamesChanged;
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232 | public event EventHandler Reset;
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233 | public event EventHandler<EventArgs<int, int>> ItemChanged;
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234 | public event EventHandler SortableViewChanged;
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235 |
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236 | #endregion
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237 |
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238 | #region Events
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239 | protected void OnRowsChanged() {
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240 | var handler = RowsChanged;
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241 | if (handler != null)
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242 | handler(this, EventArgs.Empty);
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243 | }
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244 | protected void OnColumnsChanged() {
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245 | var handler = ColumnsChanged;
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246 | if (handler != null)
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247 | handler(this, EventArgs.Empty);
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248 | }
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249 | protected void OnRowNamesChanged() {
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250 | var handler = RowNamesChanged;
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251 | if (handler != null)
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252 | handler(this, EventArgs.Empty);
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253 | }
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254 | protected void OnColumnNamesChanged() {
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255 | var handler = ColumnNamesChanged;
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256 | if (handler != null)
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257 | handler(this, EventArgs.Empty);
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258 | }
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259 | protected void OnReset() {
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260 | var handler = Reset;
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261 | if (handler != null)
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262 | handler(this, EventArgs.Empty);
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263 | }
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264 | protected void OnItemChanged(int row, int col) {
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265 | var handler = ItemChanged;
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266 | if (handler != null) {
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267 | handler(this, new EventArgs<int, int>(row, col));
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268 | if (row != col)
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269 | handler(this, new EventArgs<int, int>(col, row));
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270 | }
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271 | }
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272 | #endregion
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273 | }
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274 | }
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