1 | #region License Information
|
---|
2 | /* HeuristicLab
|
---|
3 | * Copyright (C) 2002-2011 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
|
---|
4 | *
|
---|
5 | * This file is part of HeuristicLab.
|
---|
6 | *
|
---|
7 | * HeuristicLab is free software: you can redistribute it and/or modify
|
---|
8 | * it under the terms of the GNU General Public License as published by
|
---|
9 | * the Free Software Foundation, either version 3 of the License, or
|
---|
10 | * (at your option) any later version.
|
---|
11 | *
|
---|
12 | * HeuristicLab is distributed in the hope that it will be useful,
|
---|
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
15 | * GNU General Public License for more details.
|
---|
16 | *
|
---|
17 | * You should have received a copy of the GNU General Public License
|
---|
18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
|
---|
19 | */
|
---|
20 | #endregion
|
---|
21 |
|
---|
22 | using System;
|
---|
23 | using System.Drawing;
|
---|
24 | using System.Drawing.Drawing2D;
|
---|
25 | using System.Drawing.Text;
|
---|
26 | using System.Globalization;
|
---|
27 | using System.Windows.Forms;
|
---|
28 | using HeuristicLab.Common;
|
---|
29 | using HeuristicLab.Data;
|
---|
30 | using HeuristicLab.Encodings.PermutationEncoding;
|
---|
31 |
|
---|
32 | namespace HeuristicLab.Problems.QuadraticAssignment.Views {
|
---|
33 | public partial class QAPView : UserControl {
|
---|
34 | private Bitmap bitmap;
|
---|
35 | private Bitmap defaultBitmap;
|
---|
36 |
|
---|
37 | private DoubleMatrix distances;
|
---|
38 | public DoubleMatrix Distances {
|
---|
39 | get { return distances; }
|
---|
40 | set {
|
---|
41 | DeregisterDistancesEvents();
|
---|
42 | distances = value;
|
---|
43 | RegisterDistancesEvents();
|
---|
44 | OnRedraw();
|
---|
45 | }
|
---|
46 | }
|
---|
47 |
|
---|
48 | private DoubleMatrix weights;
|
---|
49 | public DoubleMatrix Weights {
|
---|
50 | get { return weights; }
|
---|
51 | set {
|
---|
52 | DeregisterWeightsEvents();
|
---|
53 | weights = value;
|
---|
54 | RegisterWeightsEvents();
|
---|
55 | OnRedraw();
|
---|
56 | }
|
---|
57 | }
|
---|
58 |
|
---|
59 | private Permutation assignment;
|
---|
60 | public Permutation Assignment {
|
---|
61 | get { return assignment; }
|
---|
62 | set {
|
---|
63 | DeregisterAssignmentEvents();
|
---|
64 | assignment = value;
|
---|
65 | RegisterAssignmentEvents();
|
---|
66 | OnRedraw();
|
---|
67 | }
|
---|
68 | }
|
---|
69 |
|
---|
70 | private void DeregisterDistancesEvents() {
|
---|
71 | if (Distances != null) {
|
---|
72 | Distances.Reset -= new EventHandler(Redraw);
|
---|
73 | Distances.RowsChanged -= new EventHandler(Redraw);
|
---|
74 | Distances.ColumnsChanged -= new EventHandler(Redraw);
|
---|
75 | Distances.ItemChanged -= new EventHandler<EventArgs<int, int>>(Redraw);
|
---|
76 | }
|
---|
77 | }
|
---|
78 |
|
---|
79 | private void RegisterDistancesEvents() {
|
---|
80 | if (Distances != null) {
|
---|
81 | Distances.Reset += new EventHandler(Redraw);
|
---|
82 | Distances.RowsChanged += new EventHandler(Redraw);
|
---|
83 | Distances.ColumnsChanged += new EventHandler(Redraw);
|
---|
84 | Distances.ItemChanged += new EventHandler<EventArgs<int, int>>(Redraw);
|
---|
85 | }
|
---|
86 | }
|
---|
87 |
|
---|
88 | private void DeregisterWeightsEvents() {
|
---|
89 | if (Weights != null) {
|
---|
90 | Weights.Reset -= new EventHandler(Redraw);
|
---|
91 | Weights.RowsChanged -= new EventHandler(Redraw);
|
---|
92 | Weights.ColumnsChanged -= new EventHandler(Redraw);
|
---|
93 | Weights.ItemChanged -= new EventHandler<EventArgs<int, int>>(Redraw);
|
---|
94 | }
|
---|
95 | }
|
---|
96 |
|
---|
97 | private void RegisterWeightsEvents() {
|
---|
98 | if (Weights != null) {
|
---|
99 | Weights.Reset += new EventHandler(Redraw);
|
---|
100 | Weights.RowsChanged += new EventHandler(Redraw);
|
---|
101 | Weights.ColumnsChanged += new EventHandler(Redraw);
|
---|
102 | Weights.ItemChanged += new EventHandler<EventArgs<int, int>>(Redraw);
|
---|
103 | }
|
---|
104 | }
|
---|
105 |
|
---|
106 | private void DeregisterAssignmentEvents() {
|
---|
107 | if (Assignment != null) {
|
---|
108 | Assignment.Reset -= new EventHandler(Redraw);
|
---|
109 | Assignment.ItemChanged -= new EventHandler<EventArgs<int>>(Redraw);
|
---|
110 | }
|
---|
111 | }
|
---|
112 |
|
---|
113 | private void RegisterAssignmentEvents() {
|
---|
114 | if (Assignment != null) {
|
---|
115 | Assignment.Reset += new EventHandler(Redraw);
|
---|
116 | Assignment.ItemChanged += new EventHandler<EventArgs<int>>(Redraw);
|
---|
117 | }
|
---|
118 | }
|
---|
119 |
|
---|
120 | private void Redraw(object sender, EventArgs e) {
|
---|
121 | if (sender is RadioButton && !((RadioButton)sender).Checked)
|
---|
122 | return;
|
---|
123 | OnRedraw();
|
---|
124 | }
|
---|
125 |
|
---|
126 | private void Redraw(object sender, EventArgs<int, int> e) {
|
---|
127 | OnRedraw();
|
---|
128 | }
|
---|
129 |
|
---|
130 | public QAPView() {
|
---|
131 | InitializeComponent();
|
---|
132 | SetupDefaultBitmap();
|
---|
133 | pictureBox.Resize += new EventHandler(pictureBox_Resize);
|
---|
134 | }
|
---|
135 |
|
---|
136 | private void pictureBox_Resize(object sender, EventArgs e) {
|
---|
137 | SetupDefaultBitmap();
|
---|
138 | }
|
---|
139 |
|
---|
140 | private void SetupDefaultBitmap() {
|
---|
141 | if (defaultBitmap != null) defaultBitmap.Dispose();
|
---|
142 | defaultBitmap = new Bitmap(pictureBox.Width, pictureBox.Height);
|
---|
143 | using (Graphics g = Graphics.FromImage(defaultBitmap)) {
|
---|
144 | g.TextRenderingHint = TextRenderingHint.AntiAlias;
|
---|
145 | g.SmoothingMode = SmoothingMode.AntiAlias;
|
---|
146 |
|
---|
147 | string msg = "No visualization available";
|
---|
148 | SizeF strSize = g.MeasureString(msg, Font);
|
---|
149 | g.DrawString(msg, Font, Brushes.Black, (float)(pictureBox.Width - strSize.Width) / 2.0f, (float)(pictureBox.Height - strSize.Height) / 2.0f);
|
---|
150 | }
|
---|
151 | }
|
---|
152 |
|
---|
153 | private void OnRedraw() {
|
---|
154 | if (InvokeRequired) {
|
---|
155 | Invoke((Action)OnRedraw, null);
|
---|
156 | } else {
|
---|
157 | GenerateImage();
|
---|
158 | }
|
---|
159 | }
|
---|
160 |
|
---|
161 | private void GenerateImage() {
|
---|
162 | Bitmap newBitmap = null;
|
---|
163 | errorLabel.Text = "Error: -";
|
---|
164 | if (distancesRadioButton.Checked && Distances != null && Distances.Rows > 0
|
---|
165 | && Distances.Rows == Distances.Columns) {
|
---|
166 | newBitmap = GenerateDistanceImage();
|
---|
167 | } else if (weightsRadioButton.Checked && Weights != null && Weights.Rows > 0
|
---|
168 | && Weights.Rows == Weights.Columns) {
|
---|
169 | newBitmap = GenerateWeightsImage();
|
---|
170 | } else if (assignmentRadioButton.Checked
|
---|
171 | && Assignment != null && Assignment.Length > 0
|
---|
172 | && Weights != null && Weights.Rows > 0
|
---|
173 | && Distances != null && Distances.Rows > 0
|
---|
174 | && Weights.Rows == Weights.Columns
|
---|
175 | && Distances.Rows == Distances.Columns
|
---|
176 | && Assignment.Length == Weights.Rows
|
---|
177 | && Assignment.Length == Distances.Rows) {
|
---|
178 | newBitmap = GenerateAssignmentImage();
|
---|
179 | }
|
---|
180 |
|
---|
181 | pictureBox.Image = newBitmap != null ? newBitmap : defaultBitmap;
|
---|
182 | if (bitmap != null) bitmap.Dispose();
|
---|
183 | bitmap = newBitmap;
|
---|
184 | }
|
---|
185 |
|
---|
186 | private Bitmap GenerateDistanceImage() {
|
---|
187 | if ((pictureBox.Width > 0) && (pictureBox.Height > 0)) {
|
---|
188 | Bitmap newBitmap = new Bitmap(pictureBox.Width, pictureBox.Height);
|
---|
189 |
|
---|
190 | double error;
|
---|
191 | DoubleMatrix coordinates = MultidimensionalScaling.Metric(distances, out error);
|
---|
192 | errorLabel.Text = "Error: " + error.ToString(CultureInfo.CurrentCulture.NumberFormat);
|
---|
193 | double xMin = double.MaxValue, yMin = double.MaxValue, xMax = double.MinValue, yMax = double.MinValue;
|
---|
194 | double maxDistance = double.MinValue;
|
---|
195 | for (int i = 0; i < coordinates.Rows; i++) {
|
---|
196 | if (xMin > coordinates[i, 0]) xMin = coordinates[i, 0];
|
---|
197 | if (yMin > coordinates[i, 1]) yMin = coordinates[i, 1];
|
---|
198 | if (xMax < coordinates[i, 0]) xMax = coordinates[i, 0];
|
---|
199 | if (yMax < coordinates[i, 1]) yMax = coordinates[i, 1];
|
---|
200 |
|
---|
201 | for (int j = i + 1; j < coordinates.Rows; j++) {
|
---|
202 | if (distances[i, j] > maxDistance) maxDistance = distances[i, j];
|
---|
203 | if (distances[j, i] > maxDistance) maxDistance = distances[j, i];
|
---|
204 | }
|
---|
205 | }
|
---|
206 |
|
---|
207 | int border = 20;
|
---|
208 | double xStep = xMax != xMin ? (pictureBox.Width - 2 * border) / (xMax - xMin) : 1;
|
---|
209 | double yStep = yMax != yMin ? (pictureBox.Height - 2 * border) / (yMax - yMin) : 1;
|
---|
210 |
|
---|
211 | Point[] points = new Point[coordinates.Rows];
|
---|
212 | for (int i = 0; i < coordinates.Rows; i++)
|
---|
213 | points[i] = new Point(border + ((int)((coordinates[i, 0] - xMin) * xStep)),
|
---|
214 | newBitmap.Height - (border + ((int)((coordinates[i, 1] - yMin) * yStep))));
|
---|
215 |
|
---|
216 | using (Graphics graphics = Graphics.FromImage(newBitmap)) {
|
---|
217 | graphics.SmoothingMode = SmoothingMode.AntiAlias;
|
---|
218 | graphics.TextRenderingHint = TextRenderingHint.AntiAlias;
|
---|
219 | graphics.DrawString("Showing Locations spaced out according to their distances", Font, Brushes.Black, 5, 2);
|
---|
220 |
|
---|
221 | for (int i = 0; i < coordinates.Rows - 1; i++) {
|
---|
222 | for (int j = i + 1; j < coordinates.Rows; j++) {
|
---|
223 | Point start = points[i], end = points[j];
|
---|
224 | string caption = String.Empty;
|
---|
225 | double d = Math.Max(distances[i, j], distances[j, i]);
|
---|
226 | float width = (float)Math.Ceiling(5.0 * d / maxDistance);
|
---|
227 | if (d > 0) {
|
---|
228 | graphics.DrawLine(new Pen(Color.IndianRed, width), start, end);
|
---|
229 | if (distances[i, j] != distances[j, i])
|
---|
230 | caption = distances[i, j].ToString(CultureInfo.InvariantCulture.NumberFormat)
|
---|
231 | + " / " + distances[j, i].ToString(CultureInfo.InvariantCulture.NumberFormat);
|
---|
232 | else
|
---|
233 | caption = distances[i, j].ToString(CultureInfo.InvariantCulture.NumberFormat);
|
---|
234 | }
|
---|
235 | }
|
---|
236 | }
|
---|
237 |
|
---|
238 | for (int i = 0; i < points.Length; i++) {
|
---|
239 | Point p = new Point(points[i].X - 3, points[i].Y - 3);
|
---|
240 | graphics.FillRectangle(Brushes.Black, p.X, p.Y, 8, 8);
|
---|
241 | graphics.DrawString(i.ToString(), Font, Brushes.Black, p.X, p.Y + 10);
|
---|
242 | }
|
---|
243 | }
|
---|
244 | return newBitmap;
|
---|
245 | }
|
---|
246 | return null;
|
---|
247 | }
|
---|
248 |
|
---|
249 | private Bitmap GenerateWeightsImage() {
|
---|
250 | if ((pictureBox.Width > 0) && (pictureBox.Height > 0)) {
|
---|
251 | Bitmap newBitmap = new Bitmap(pictureBox.Width, pictureBox.Height);
|
---|
252 |
|
---|
253 | double error;
|
---|
254 | DoubleMatrix coordinates = MultidimensionalScaling.Classic(weights, out error);
|
---|
255 | errorLabel.Text = "Error: " + error.ToString(CultureInfo.CurrentCulture.NumberFormat);
|
---|
256 | double xMin = double.MaxValue, yMin = double.MaxValue, xMax = double.MinValue, yMax = double.MinValue;
|
---|
257 | double maxWeight = double.MinValue;
|
---|
258 | for (int i = 0; i < coordinates.Rows; i++) {
|
---|
259 | if (xMin > coordinates[i, 0]) xMin = coordinates[i, 0];
|
---|
260 | if (yMin > coordinates[i, 1]) yMin = coordinates[i, 1];
|
---|
261 | if (xMax < coordinates[i, 0]) xMax = coordinates[i, 0];
|
---|
262 | if (yMax < coordinates[i, 1]) yMax = coordinates[i, 1];
|
---|
263 |
|
---|
264 | for (int j = i + 1; j < coordinates.Rows; j++) {
|
---|
265 | if (weights[i, j] + weights[j, i] > maxWeight)
|
---|
266 | maxWeight = weights[i, j] + weights[j, i];
|
---|
267 | }
|
---|
268 | }
|
---|
269 |
|
---|
270 | int border = 20;
|
---|
271 | double xStep = xMax != xMin ? (pictureBox.Width - 2 * border) / (xMax - xMin) : 1;
|
---|
272 | double yStep = yMax != yMin ? (pictureBox.Height - 2 * border) / (yMax - yMin) : 1;
|
---|
273 |
|
---|
274 | Point[] points = new Point[coordinates.Rows];
|
---|
275 | for (int i = 0; i < coordinates.Rows; i++)
|
---|
276 | points[i] = new Point(border + ((int)((coordinates[i, 0] - xMin) * xStep)),
|
---|
277 | newBitmap.Height - (border + ((int)((coordinates[i, 1] - yMin) * yStep))));
|
---|
278 |
|
---|
279 | Random rand = new Random();
|
---|
280 | using (Graphics graphics = Graphics.FromImage(newBitmap)) {
|
---|
281 | graphics.SmoothingMode = SmoothingMode.AntiAlias;
|
---|
282 | graphics.TextRenderingHint = TextRenderingHint.AntiAlias;
|
---|
283 | graphics.DrawString("Showing Facilities spaced out according to their weights", Font, Brushes.Black, 5, 2);
|
---|
284 |
|
---|
285 | for (int i = 0; i < coordinates.Rows - 1; i++) {
|
---|
286 | for (int j = i + 1; j < coordinates.Rows; j++) {
|
---|
287 | Point start = points[i], end = points[j];
|
---|
288 | string caption = String.Empty;
|
---|
289 | double d = Math.Max(distances[i, j], distances[j, i]);
|
---|
290 | double w = weights[i, j] + weights[j, i];
|
---|
291 | if (w > 0) {
|
---|
292 | float width = (float)Math.Ceiling(3.0 * w / maxWeight);
|
---|
293 | graphics.DrawLine(new Pen(Color.MediumBlue, width), start, end);
|
---|
294 | caption = w.ToString(CultureInfo.InvariantCulture.NumberFormat);
|
---|
295 | }
|
---|
296 | if (!String.IsNullOrEmpty(caption)) {
|
---|
297 | double r = rand.NextDouble();
|
---|
298 | while (r < 0.2 || r > 0.8) r = rand.NextDouble();
|
---|
299 | float x = (float)(start.X + (end.X - start.X) * r + 5);
|
---|
300 | float y = (float)(start.Y + (end.Y - start.Y) * r + 5);
|
---|
301 | graphics.DrawString(caption, Font, Brushes.Black, x, y);
|
---|
302 | }
|
---|
303 | }
|
---|
304 | }
|
---|
305 | for (int i = 0; i < points.Length; i++) {
|
---|
306 | Point p = new Point(points[i].X - 3, points[i].Y - 3);
|
---|
307 | graphics.FillRectangle(Brushes.Black, p.X, p.Y, 8, 8);
|
---|
308 | graphics.DrawString(i.ToString(), Font, Brushes.Black, p.X, p.Y + 10);
|
---|
309 | }
|
---|
310 | }
|
---|
311 | return newBitmap;
|
---|
312 | }
|
---|
313 | return null;
|
---|
314 | }
|
---|
315 |
|
---|
316 | private Bitmap GenerateAssignmentImage() {
|
---|
317 | return null;
|
---|
318 | }
|
---|
319 |
|
---|
320 | private void CustomDispose(bool disposing) {
|
---|
321 | DeregisterDistancesEvents();
|
---|
322 | DeregisterWeightsEvents();
|
---|
323 | DeregisterAssignmentEvents();
|
---|
324 | if (bitmap != null) bitmap.Dispose();
|
---|
325 | bitmap = null;
|
---|
326 | defaultBitmap.Dispose();
|
---|
327 | defaultBitmap = null;
|
---|
328 | }
|
---|
329 | }
|
---|
330 | }
|
---|