1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Windows.Forms;
using TSP;
namespace Plotter
{
public class TourPlot
{
public Tour Tour { get; set; }
public PictureBox Canvas { get; set; }
public TourPlot(PictureBox canvas)
{
Canvas = canvas;
}
public void Render()
{
const int Scaler = 125;
using Bitmap bmp = new(Canvas.Width, Canvas.Height);
using Graphics gfx = Graphics.FromImage(bmp);
using Pen pen = new(Color.Black);
using Pen gridPen = new(Color.LightGray);
using Font font = new("Arial", 16);
using Font gridFont = new("Arial", 10);
using SolidBrush brush = new(Color.Black);
gfx.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
gfx.Clear(Color.White);
for (int i = 0; i <= 100; i += 10)
{
Point left = ScaleLocation(new Coordinate(0, i));
Point right = ScaleLocation(new Coordinate(100, i));
gfx.DrawLine(gridPen, left, right);
gfx.DrawString(i.ToString(), gridFont, brush, left);
Point bottom = ScaleLocation(new Coordinate(i, 0));
Point top = ScaleLocation(new Coordinate(i, 100));
gfx.DrawLine(gridPen, bottom, top);
gfx.DrawString(i.ToString(), gridFont, brush, bottom);
}
foreach (City city in Tour.Cities.Where(city => city.Parent != -1))
{
City parent = Tour[city.Parent];
Point cityPoint = ScaleLocation(city.Location);
Point parentPoint = ScaleLocation(parent.Location);
gfx.DrawString(city.Id.ToString(), font, brush, cityPoint);
gfx.DrawLine(pen, cityPoint, parentPoint);
}
// copy the bitmap to the picturebox (double buffered)
Canvas.Image?.Dispose();
Canvas.Image = (Bitmap)bmp.Clone();
Point ScaleLocation(Coordinate coordinate)
{
int x = Canvas.Width * (coordinate.X + 10) / Scaler;
int y = Canvas.Height * ((coordinate.Y - 100) * -1 + 15) / Scaler;
return new Point(x, y);
}
}
public void WriteDebug()
{
Debug.WriteLine(Tour);
foreach (City city in Tour.Cities)
Debug.WriteLine(city.Location);
}
}
}
|
