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source: stable/HeuristicLab.Problems.VehicleRouting.Views/3.4/SingleDepotVRPView.cs @ 17181

Last change on this file since 17181 was 17181, checked in by swagner, 5 years ago

#2875: Merged r17180 from trunk to stable

File size: 5.0 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 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
22using System.Collections.Generic;
23using System.Drawing;
24using System.Windows.Forms;
25using HeuristicLab.MainForm;
26using HeuristicLab.Problems.VehicleRouting.ProblemInstances;
27using HeuristicLab.Data;
28
29namespace HeuristicLab.Problems.VehicleRouting.Views {
30  [View("SingleDepotVRPProblemInstance View")]
31  [Content(typeof(SingleDepotVRPProblemInstance), true)]
32  public partial class SingleDepotVRPView : VRPProblemInstanceView {
33    public new SingleDepotVRPProblemInstance Content {
34      get { return (SingleDepotVRPProblemInstance)base.Content; }
35      set { base.Content = value; }
36    }
37
38    public SingleDepotVRPView() {
39      InitializeComponent();
40    }
41
42    protected override void DrawVisualization(Bitmap bitmap) {
43      DoubleMatrix coordinates = Content.Coordinates;
44      DoubleMatrix distanceMatrix = Content.DistanceMatrix;
45      BoolValue useDistanceMatrix = Content.UseDistanceMatrix;
46
47      if ((coordinates != null) && (coordinates.Rows > 0) && (coordinates.Columns == 2)) {
48        double xMin = double.MaxValue, yMin = double.MaxValue, xMax = double.MinValue, yMax = double.MinValue;
49        for (int i = 0; i < coordinates.Rows; i++) {
50          if (xMin > coordinates[i, 0]) xMin = coordinates[i, 0];
51          if (yMin > coordinates[i, 1]) yMin = coordinates[i, 1];
52          if (xMax < coordinates[i, 0]) xMax = coordinates[i, 0];
53          if (yMax < coordinates[i, 1]) yMax = coordinates[i, 1];
54        }
55
56        int border = 20;
57        double xStep = xMax != xMin ? (bitmap.Width - 2 * border) / (xMax - xMin) : 1;
58        double yStep = yMax != yMin ? (bitmap.Height - 2 * border) / (yMax - yMin) : 1;
59
60        using (Graphics graphics = Graphics.FromImage(bitmap)) {
61          if (Solution != null) {
62             List<Tour> tours = Solution.GetTours();
63             List<Pen> pens = GetColors(tours.Count);
64
65            int currentTour = 0;
66            foreach (Tour tour in tours) {
67              Point[] tourPoints = new Point[tour.Stops.Count + 2];
68              Brush[] customerBrushes = new Brush[tour.Stops.Count];
69              int lastCustomer = 0;
70
71              for (int i = -1; i <= tour.Stops.Count; i++) {
72                int location = 0;
73
74                if (i == -1 || i == tour.Stops.Count)
75                  location = 0; //depot
76                else
77                  location = tour.Stops[i];
78
79                Point locationPoint = new Point(border + ((int)((coordinates[location, 0] - xMin) * xStep)),
80                                bitmap.Height - (border + ((int)((coordinates[location, 1] - yMin) * yStep))));
81                tourPoints[i + 1] = locationPoint;
82
83                if (i != -1 && i != tour.Stops.Count) {
84                  Brush customerBrush = Brushes.Black;
85                  customerBrushes[i] = customerBrush;
86                }
87                lastCustomer = location;
88              }
89
90              graphics.DrawPolygon(pens[currentTour], tourPoints);
91
92              for (int i = 0; i < tour.Stops.Count; i++) {
93                graphics.FillRectangle(customerBrushes[i], tourPoints[i + 1].X - 3, tourPoints[i + 1].Y - 3, 6, 6);
94              }
95
96              graphics.FillEllipse(Brushes.Blue, tourPoints[0].X - 5, tourPoints[0].Y - 5, 10, 10);
97
98              currentTour++;
99            }
100
101            for (int i = 0; i < pens.Count; i++)
102               pens[i].Dispose();
103          } else {
104            Point locationPoint;
105            //just draw customers
106            for (int i = 1; i < coordinates.Rows; i++) {
107              locationPoint = new Point(border + ((int)((coordinates[i, 0] - xMin) * xStep)),
108                              bitmap.Height - (border + ((int)((coordinates[i, 1] - yMin) * yStep))));
109
110              graphics.FillRectangle(Brushes.Black, locationPoint.X - 3, locationPoint.Y - 3, 6, 6);
111            }
112
113            locationPoint = new Point(border + ((int)((coordinates[0, 0] - xMin) * xStep)),
114                              bitmap.Height - (border + ((int)((coordinates[0, 1] - yMin) * yStep))));
115            graphics.FillEllipse(Brushes.Blue, locationPoint.X - 5, locationPoint.Y - 5, 10, 10);
116          }
117        }
118      }
119    }
120  }
121}
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