[5583] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2011 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 System;
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| 23 | using System.ComponentModel;
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| 24 | using System.Drawing;
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| 25 | using System.Globalization;
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| 26 | using System.Windows.Forms;
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| 27 | using HeuristicLab.Core.Views;
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| 28 | using HeuristicLab.Data;
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| 29 | using HeuristicLab.Encodings.PermutationEncoding;
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| 30 | using HeuristicLab.MainForm;
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| 31 |
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| 32 | namespace HeuristicLab.Problems.QuadraticAssignment.Views {
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| 33 | /// <summary>
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| 34 | /// The base class for visual representations of a path tour for a TSP.
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| 35 | /// </summary>
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| 36 | [View("QAPAssignment View")]
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| 37 | [Content(typeof(QAPAssignment), true)]
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| 38 | public sealed partial class QAPAssignmentView : ItemView {
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[5598] | 39 | private Bitmap bitmap;
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| 40 |
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[5583] | 41 | public new QAPAssignment Content {
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| 42 | get { return (QAPAssignment)base.Content; }
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| 43 | set { base.Content = value; }
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| 44 | }
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| 45 |
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| 46 | /// <summary>
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| 47 | /// Initializes a new instance of <see cref="PathTSPTourView"/>.
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| 48 | /// </summary>
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| 49 | public QAPAssignmentView() {
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| 50 | InitializeComponent();
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| 51 | }
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| 52 |
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| 53 | protected override void DeregisterContentEvents() {
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| 54 | Content.PropertyChanged -= new PropertyChangedEventHandler(Content_PropertyChanged);
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| 55 | base.DeregisterContentEvents();
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| 56 | }
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| 57 | protected override void RegisterContentEvents() {
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| 58 | base.RegisterContentEvents();
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| 59 | Content.PropertyChanged += new PropertyChangedEventHandler(Content_PropertyChanged);
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| 60 | }
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| 61 |
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| 62 | protected override void OnContentChanged() {
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| 63 | base.OnContentChanged();
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| 64 | if (Content == null) {
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| 65 | qualityViewHost.Content = null;
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| 66 | pictureBox.Image = null;
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| 67 | assignmentViewHost.Content = null;
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| 68 | } else {
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| 69 | qualityViewHost.Content = Content.Quality;
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| 70 | GenerateImage();
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| 71 | assignmentViewHost.Content = Content.Assignment;
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| 72 | }
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| 73 | }
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| 74 |
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| 75 | protected override void SetEnabledStateOfControls() {
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| 76 | base.SetEnabledStateOfControls();
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| 77 | qualityGroupBox.Enabled = Content != null;
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| 78 | pictureBox.Enabled = Content != null;
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| 79 | assignmentGroupBox.Enabled = Content != null;
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| 80 | }
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| 81 |
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| 82 | private void GenerateImage() {
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| 83 | if ((pictureBox.Width > 0) && (pictureBox.Height > 0)) {
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| 84 | if (Content == null) {
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| 85 | pictureBox.Image = null;
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[5598] | 86 | if (bitmap != null) bitmap.Dispose();
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| 87 | bitmap = null;
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[5583] | 88 | } else {
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[5598] | 89 | Bitmap newBitmap = new Bitmap(pictureBox.Width, pictureBox.Height);
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| 90 | bool drawDistances = distancesRadioButton.Checked;
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[5583] | 91 | DoubleMatrix coordinates = Content.Coordinates;
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| 92 | DoubleMatrix distances = Content.Distances;
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[5598] | 93 |
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[5583] | 94 | if ((coordinates == null || coordinates.Rows == 0)
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[5598] | 95 | && (distances == null || distances.Rows == 0)) {
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| 96 | using (Graphics g = Graphics.FromImage(newBitmap)) {
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| 97 | string str = "No coordinates and no distance matrix specified.";
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| 98 | SizeF strSize = g.MeasureString(str, Font);
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| 99 | g.DrawString(str, Font, Brushes.Black, (float)(newBitmap.Width - strSize.Width) / 2.0f, (float)(newBitmap.Height - strSize.Height) / 2.0f);
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| 100 | }
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| 101 | } else {
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| 102 | if ((coordinates == null || coordinates.Rows == 0)
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| 103 | && Content.ViewCoordinates == null) {
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| 104 | coordinates = new DoubleMatrix(distances.Rows, 2);
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| 105 | double rad = (2 * Math.PI) / coordinates.Rows;
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| 106 | for (int i = 0; i < coordinates.Rows; i++) {
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| 107 | coordinates[i, 0] = 10 * Math.Cos(rad * i);
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| 108 | coordinates[i, 1] = 10 * Math.Sin(rad * i);
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[5583] | 109 | }
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[5598] | 110 | Content.ViewCoordinates = coordinates;
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| 111 | } else if ((coordinates == null || coordinates.Rows == 0)
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| 112 | && Content.ViewCoordinates != null) {
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| 113 | coordinates = Content.ViewCoordinates;
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[5583] | 114 | }
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| 115 |
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[5598] | 116 | DoubleMatrix weights = Content.Weights;
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| 117 | Permutation assignment = Content.Assignment;
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[5583] | 118 |
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| 119 | double xMin = double.MaxValue, yMin = double.MaxValue, xMax = double.MinValue, yMax = double.MinValue;
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[5598] | 120 | double maxWeight = double.MinValue, maxDistance = double.MinValue;
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[5583] | 121 | for (int i = 0; i < coordinates.Rows; i++) {
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| 122 | if (xMin > coordinates[i, 0]) xMin = coordinates[i, 0];
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| 123 | if (yMin > coordinates[i, 1]) yMin = coordinates[i, 1];
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| 124 | if (xMax < coordinates[i, 0]) xMax = coordinates[i, 0];
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| 125 | if (yMax < coordinates[i, 1]) yMax = coordinates[i, 1];
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[5598] | 126 |
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| 127 | for (int j = i + 1; j < coordinates.Rows; j++) {
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| 128 | if (weights[i, j] + weights[j, i] > maxWeight)
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| 129 | maxWeight = weights[i, j] + weights[j, i];
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| 130 |
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| 131 | if (distances[i, j] > maxDistance)
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| 132 | maxDistance = distances[i, j];
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| 133 | else if (distances[j, i] > maxDistance)
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| 134 | maxDistance = distances[j, i];
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| 135 | }
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[5583] | 136 | }
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| 137 |
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| 138 | int border = 20;
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| 139 | double xStep = xMax != xMin ? (pictureBox.Width - 2 * border) / (xMax - xMin) : 1;
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| 140 | double yStep = yMax != yMin ? (pictureBox.Height - 2 * border) / (yMax - yMin) : 1;
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| 141 |
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| 142 | Point[] points = new Point[coordinates.Rows];
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| 143 | for (int i = 0; i < coordinates.Rows; i++)
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| 144 | points[i] = new Point(border + ((int)((coordinates[i, 0] - xMin) * xStep)),
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[5598] | 145 | newBitmap.Height - (border + ((int)((coordinates[i, 1] - yMin) * yStep))));
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[5583] | 146 |
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[5598] | 147 | Random rand = new Random();
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| 148 | using (Graphics graphics = Graphics.FromImage(newBitmap)) {
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| 149 | graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
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| 150 | graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
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| 151 | if ((assignment != null) && (assignment.Length == coordinates.Rows) && (assignment.Validate())) {
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| 152 | for (int i = 0; i < assignment.Length - 1; i++) {
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| 153 | for (int j = i + 1; j < assignment.Length; j++) {
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| 154 | Point start = points[assignment[i]], end = points[assignment[j]];
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| 155 | string caption = String.Empty;
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| 156 | double d = Math.Max(distances[i, j], distances[j, i]);
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| 157 | if (drawDistances) {
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| 158 | float width = (float)Math.Ceiling(5.0 * d / maxDistance);
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| 159 | graphics.DrawLine(new Pen(Color.IndianRed, width), start, end);
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| 160 | if (distances[i, j] != distances[j, i])
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| 161 | caption = distances[i, j].ToString(CultureInfo.InvariantCulture.NumberFormat)
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| 162 | + " / " + distances[j, i].ToString(CultureInfo.InvariantCulture.NumberFormat);
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| 163 | else
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| 164 | caption = distances[i, j].ToString(CultureInfo.InvariantCulture.NumberFormat);
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| 165 | } else {
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| 166 | double w = weights[i, j] + weights[j, i];
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| 167 | if (w > 0) {
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| 168 | float width = (float)Math.Ceiling(5.0 * w / maxWeight);
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| 169 | graphics.DrawLine(new Pen(Color.MediumBlue, width), start, end);
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| 170 | caption = w.ToString(CultureInfo.InvariantCulture.NumberFormat);
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| 171 | }
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| 172 | if (!String.IsNullOrEmpty(caption)) {
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| 173 | double r = rand.NextDouble();
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| 174 | while (r < 0.2 || r > 0.8) r = rand.NextDouble();
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| 175 | float x = (float)(start.X + (end.X - start.X) * r + 5);
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| 176 | float y = (float)(start.Y + (end.Y - start.Y) * r + 5);
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| 177 | graphics.DrawString(caption, Font, Brushes.Black, x, y);
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| 178 | }
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[5583] | 179 | }
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| 180 | }
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| 181 | }
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| 182 | }
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[5598] | 183 | for (int i = 0; i < points.Length; i++) {
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| 184 | Point p = new Point(points[assignment[i]].X - 3, points[assignment[i]].Y - 3);
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| 185 | graphics.FillRectangle(Brushes.Black, p.X, p.Y, 8, 8);
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| 186 | graphics.DrawString(i.ToString(), Font, Brushes.Black, p.X, p.Y + 10);
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| 187 | }
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[5583] | 188 | }
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| 189 | }
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[5598] | 190 | pictureBox.Image = newBitmap;
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| 191 | if (bitmap != null) bitmap.Dispose();
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| 192 | bitmap = newBitmap;
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[5583] | 193 | }
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| 194 | }
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| 195 | }
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| 196 |
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| 197 | private void Content_PropertyChanged(object sender, PropertyChangedEventArgs e) {
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| 198 | if (InvokeRequired)
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| 199 | Invoke(new PropertyChangedEventHandler(Content_PropertyChanged), sender, e);
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| 200 | else {
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| 201 | switch (e.PropertyName) {
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| 202 | case "Coordinates":
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| 203 | case "Distances":
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| 204 | case "Weights":
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| 205 | GenerateImage();
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| 206 | break;
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[5598] | 207 | case "Assignment":
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[5583] | 208 | GenerateImage();
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| 209 | assignmentViewHost.Content = Content.Assignment;
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| 210 | break;
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| 211 | case "Quality":
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| 212 | break;
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| 213 | default:
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| 214 | break;
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| 215 | }
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| 216 | }
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| 217 | }
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| 218 |
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| 219 | private void pictureBox_SizeChanged(object sender, EventArgs e) {
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| 220 | GenerateImage();
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| 221 | }
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[5598] | 222 |
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| 223 | private void radioButton_CheckedChanged(object sender, EventArgs e) {
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| 224 | GenerateImage();
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| 225 | }
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[5583] | 226 | }
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| 227 | }
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