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matarillomatarillo
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test
1 parent 2f85657 commit 07f64aa

9 files changed

+632
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‎Controller/NodeController.cs

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using System;
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using System.Drawing;
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using System.Windows.Forms;
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namespace AutoLayoutApplication
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{
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public class NodeController
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{
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private NodeCollection nodes;
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private Size clientSize;
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public NodeController(NodeCollection nodes, Size clientSize)
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{
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this.nodes = nodes;
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this.clientSize = clientSize;
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}
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public void TimerTick(object sender, EventArgs e)
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{
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this.nodes.MoveAll();
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}
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public void MouseDown(object sender, MouseEventArgs e)
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{
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this.nodes.Lock(ToNodeX(e.X), ToNodeY(e.Y));
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}
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public void MouseMove(object sender, MouseEventArgs e)
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{
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this.nodes.Drag(ToNodeX(e.X), ToNodeY(e.Y));
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}
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public void MouseUp(object sender, MouseEventArgs e)
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{
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this.nodes.Unlock();
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}
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private double ToNodeX(int x)
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{
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return (double)(x - this.clientSize.Width / 2);
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}
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private double ToNodeY(int y)
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{
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return (double)(y - this.clientSize.Height / 2);
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}
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}
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}

‎Controller/TimerController.cs

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using System;
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namespace AutoLayoutApplication
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{
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public class TimerController
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{
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private TimerSwitch timerSwitch;
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public TimerController(TimerSwitch timerSwitch)
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{
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this.timerSwitch = timerSwitch;
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}
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public void ButtonClick(object sender, EventArgs e)
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{
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this.timerSwitch.Enabled = !(this.timerSwitch.Enabled);
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}
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}
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}

‎Model/Node.cs

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using System;
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using System.Collections.Generic;
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namespace AutoLayoutApplication
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{
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public class Node
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{
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public string Name { get; private set; }
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public ICollection<Node> Neighbors { get; private set; }
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public Vector R { get; set; }
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public Vector V { get; set; }
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public Node(string name)
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{
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this.Name = name;
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this.Neighbors = new List<Node>();
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}
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public Vector GetSpringForce(Node n)
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{
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// ばねの力は自然長からの変位に比例 (比例定数 -k, ばねの長さ l)
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const double k = 0.1d;
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const double l = 60.0d;
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double dx = this.R.X - n.R.X;
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double dy = this.R.Y - n.R.Y;
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double d2 = dx * dx + dy * dy;
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if (d2 < double.Epsilon)
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{
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// 距離0の時は例外として乱数で決定
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Random rand = new Random();
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return new Vector()
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{
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X = rand.NextDouble() - 0.5d,
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Y = rand.NextDouble() - 0.5d
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};
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}
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double d = Math.Sqrt(d2);
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double cos = dx / d;
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double sin = dy / d;
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double dl = d - l;
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return new Vector()
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{
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X = -k * dl * cos,
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Y = -k * dl * sin
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};
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}
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public Vector GetReplusiveForce(Node n)
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{
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// 反発は距離の2乗に反比例 (比例定数 g)
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const double g = 500.0d;
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double dx = this.R.X - n.R.X;
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double dy = this.R.Y - n.R.Y;
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double d2 = dx * dx + dy * dy;
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if (d2 < double.Epsilon)
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{
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// 距離0の時は例外として乱数で決定
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Random rand = new Random();
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return new Vector()
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{
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X = rand.NextDouble() - 0.5d,
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Y = rand.NextDouble() - 0.5d
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};
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}
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double d = Math.Sqrt(d2);
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double cos = dx / d;
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double sin = dy / d;
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return new Vector()
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{
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X = g / d2 * cos,
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Y = g / d2 * sin
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};
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}
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public Vector GetFrictionalForce()
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{
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// 摩擦力は速度に比例 (比例定数 -m)
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const double m = 0.3d;
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return new Vector()
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{
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X = -m * this.V.X,
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Y = -m * this.V.Y
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};
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}
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public void MoveEular(double dt, Vector f)
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{
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// 質量は1とする
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this.R = new Vector()
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{
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X = this.R.X + dt * this.V.X,
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Y = this.R.Y + dt * this.V.Y
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};
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this.V = new Vector()
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{
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X = this.V.X + dt * f.X,
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Y = this.V.Y + dt * f.Y
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};
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}
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}
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}

‎Model/NodeCollection.cs

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using System.Collections.Generic;
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using System.ComponentModel;
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namespace AutoLayoutApplication
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{
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public class NodeCollection : Dictionary<string, Node>, INotifyPropertyChanged
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{
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public event PropertyChangedEventHandler PropertyChanged;
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private Node lockedNode;
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public NodeCollection Add(params string[] names)
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{
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foreach (string name in names)
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{
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this[name] = new Node(name);
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}
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return this;
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}
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public NodeCollection Link(params string[] links)
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{
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foreach (string link in links)
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{
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string[] n = link.Split(',');
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this[n[0]].Neighbors.Add(this[n[1]]);
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this[n[1]].Neighbors.Add(this[n[0]]);
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}
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return this;
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}
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public void MoveAll()
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{
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const double dt = 0.1d;
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foreach (Node n in this.Values)
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{
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if (n == this.lockedNode)
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{
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continue;
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}
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Vector f = new Vector();
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foreach (Node nn in n.Neighbors)
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{
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f += n.GetSpringForce(nn);
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}
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foreach (Node nn in this.Values)
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{
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if (n != nn)
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{
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f += n.GetReplusiveForce(nn);
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}
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}
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f += n.GetFrictionalForce();
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n.MoveEular(dt, f);
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}
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this.OnProeprtyChanged("Item");
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}
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public void Lock(double x, double y)
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{
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// 指定した座標に一番近いノードをロックする
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Node nearlestNode = null;
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double nearlestD2 = double.PositiveInfinity;
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foreach (Node n in this.Values)
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{
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double d2 = (n.R.X - x) * (n.R.X - x) + (n.R.Y - y) * (n.R.Y - y);
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if (d2 < nearlestD2)
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{
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nearlestNode = n;
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nearlestD2 = d2;
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}
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}
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this.lockedNode = nearlestNode;
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nearlestNode.R = new Vector
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{
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X = x,
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Y = y
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};
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nearlestNode.V = new Vector();
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}
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public void Drag(double x, double y)
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{
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if (this.lockedNode == null)
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{
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return;
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}
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this.lockedNode.R = new Vector
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{
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X = x,
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Y = y
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};
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}
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public void Unlock()
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{
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this.lockedNode = null;
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}
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public bool IsLocked(Node n)
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{
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if (n == null) return false;
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return (n == this.lockedNode);
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}
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protected void OnProeprtyChanged(string propertyName)
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{
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PropertyChangedEventHandler handler = this.PropertyChanged;
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if (handler != null)
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{
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handler(this, new PropertyChangedEventArgs(propertyName));
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}
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}
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}
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}

‎Model/TimerSwitch.cs

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using System.ComponentModel;
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namespace AutoLayoutApplication
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{
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public class TimerSwitch : INotifyPropertyChanged
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{
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public event PropertyChangedEventHandler PropertyChanged;
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private bool _enabled;
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public bool Enabled
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{
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get
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{
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return this._enabled;
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}
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set
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{
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if (this._enabled != value)
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{
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this._enabled = value;
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this.OnProeprtyChanged("Enabled");
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}
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}
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}
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protected void OnProeprtyChanged(string propertyName)
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{
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PropertyChangedEventHandler handler = this.PropertyChanged;
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if (handler != null)
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{
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handler(this, new PropertyChangedEventArgs(propertyName));
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}
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}
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}
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}

‎Model/Vector.cs

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namespace AutoLayoutApplication
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{
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public struct Vector
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{
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public double X;
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public double Y;
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public static Vector operator +(Vector v1, Vector v2)
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{
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return new Vector()
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{
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X = v1.X + v2.X,
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Y = v1.Y + v2.Y
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};
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}
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}
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}

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