-
Notifications
You must be signed in to change notification settings - Fork 0
/
TrussSolver.java
117 lines (97 loc) · 2.92 KB
/
TrussSolver.java
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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
import java.util.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.Line2D;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.*;
public class TrussSolver extends JPanel
{
static Truss myTruss;
static JFrame window;
public static double margins = 50.0;
public static void main (String[] args)
{
Scanner s;
try {
File file = new File(args[0]);
s = new Scanner(file);
}
catch (FileNotFoundException e)
{
e.printStackTrace();
return;
}
int n = s.nextInt();
System.out.println("Scanning in "+n+" nodes...");
double len = s.nextDouble();
myTruss = new Truss(n, len);
for (int i = 0; i < n; i++)
{
double x = s.nextDouble();
double y = s.nextDouble();
myTruss.addNode(Truss.character(i), x, y);
}
int e = s.nextInt();
System.out.println("Scanning in "+e+" edges...");
s.nextLine();
for (int i = 0; i < e; i++)
{
String str = s.nextLine();
myTruss.addEdge(str.charAt(0), str.charAt(1));
}
int f = s.nextInt();
System.out.println("Scanning in "+f+" external forces...\n");
s.nextLine();
for (int i = 0; i < f; i++)
{
String str = s.next();
myTruss.addExt(str.charAt(0), s.nextDouble(), s.nextDouble());
}
window = new JFrame("Hello world");
TrussSolver panel = new TrussSolver();
// This takes the panel component and places it in the
// JFrame ... it is transparent so can't really be seen.
window.add(panel);
// When the user clicks exit to terminate the window.
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// How big should the window be.
window.setSize(400, 400);
int minSize = (int) (margins * 6.0);
window.setMinimumSize(new Dimension(minSize, minSize));
// Make the windows render to the screen.
window.setVisible(true);
myTruss.print();
myTruss.solve();
myTruss.printForces();
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
double min[] = myTruss.getMin();
double max[] = myTruss.getMax();
int h = this.getBounds().height;
int w = this.getBounds().width;
double trussWidth = max[0] - min[0];
double trussHeight = max[1] - min[1];
double xScale = (w - 2*margins) / trussWidth;
double yScale = (h - 2*margins) / trussHeight;
double s, sH, sV;
if (xScale < yScale)
{
s = xScale;
sH = (margins / s) - min[0];
sV = (h / s - trussHeight) / 2;
}
else
{
s = yScale;
sH = (w / s - trussWidth) / 2;
sV = (margins / s) - min[1];
}
myTruss.drawEdges(g, s, sH, sV);
myTruss.drawNodes(g, s, sH, sV, 10);
myTruss.drawForces(g, s, sH, sV);
}
}