source: branches/HeuristicLab.EvolutionaryTracking/HeuristicLab.EvolutionaryTracking.Views/3.4/VisualGenealogyGraphNode.cs @ 9420

Last change on this file since 9420 was 9420, checked in by bburlacu, 8 years ago

#1772: Improved the LineageExplorerView, added generation labels in the GenealogyGraphChart, added new visual component VisualGenealogyGraphTextLabel.

File size: 3.8 KB
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1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2010 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;
23using System.Collections.Generic;
24using System.Drawing;
25using HeuristicLab.Visualization;
26
27namespace HeuristicLab.EvolutionaryTracking.Views {
28  public class VisualGenealogyGraphNode : Ellipse {
29    public SymbolicExpressionGenealogyGraphNode Data { get; internal set; }
30    private List<VisualGenealogyGraphArc> incomingArcs = new List<VisualGenealogyGraphArc>();
31    private List<VisualGenealogyGraphArc> outgoingArcs = new List<VisualGenealogyGraphArc>();
32
33    public List<VisualGenealogyGraphArc> IncomingArcs {
34      get { return incomingArcs; }
35      set { incomingArcs = value; }
36    }
37    public List<VisualGenealogyGraphArc> OutgoingArcs {
38      get { return outgoingArcs; }
39      set { outgoingArcs = value; }
40    }
41
42    public float LineWidth {
43      get { return Pen.Width; }
44      set { Pen.Width = value; }
45    }
46
47    public VisualGenealogyGraphNode(IChart chart, PointD lowerLeft, PointD upperRight)
48      : base(chart, lowerLeft, upperRight) {
49    }
50    public VisualGenealogyGraphNode(IChart chart, double x1, double y1, double x2, double y2)
51      : this(chart, new PointD(x1, y1), new PointD(x2, y2)) {
52    }
53    public VisualGenealogyGraphNode(IChart chart, PointD lowerLeft, PointD upperRight, Pen pen, Brush brush)
54      : base(chart, lowerLeft, upperRight, pen, brush) {
55    }
56    public VisualGenealogyGraphNode(IChart chart, double x1, double y1, double x2, double y2, Pen pen, Brush brush)
57      : this(chart, new PointD(x1, y1), new PointD(x2, y2), pen, brush) {
58    }
59
60    // compute the intersection point of an ellipse and a line passing through its center with the angular coordinate theta
61    public PointD CalculateIntersection(double theta) {
62      double sin = Math.Sin(theta);
63      double cos = Math.Cos(theta);
64      double a = Size.Width / 2;
65      double b = Size.Height / 2;
66      double r = a * b / Math.Sqrt(Math.Pow(a * sin, 2) + Math.Pow(b * cos, 2)); // radius at intersection point
67      double rx = r * cos; // X-component (relative to the origin/center of the ellipse)
68      double ry = r * sin; // Y-component (relative to the origin/center of the ellipse)
69      return new PointD(rx, ry);
70    }
71
72    public override void SetPosition(PointD lowLeft, PointD upRight) {
73      base.SetPosition(lowLeft, upRight);
74      foreach (var a in IncomingArcs) a.UpdatePosition();
75      foreach (var a in OutgoingArcs) a.UpdatePosition();
76    }
77
78    public PointD Center {
79      get { return new PointD((LowerLeft.X + UpperRight.X) / 2, (LowerLeft.Y + UpperRight.Y) / 2); }
80    }
81
82    public override void Draw(Graphics graphics) {
83      Point p = Chart.TransformWorldToPixel(new PointD(LowerLeft.X, LowerLeft.Y + Size.Height));
84      Size s = Chart.TransformWorldToPixel(Size);
85      if (Brush != null)
86        graphics.FillEllipse(Brush, p.X, p.Y, s.Width, s.Height);
87      graphics.DrawEllipse(Pen, p.X, p.Y, s.Width, s.Height);
88      if (Data.IsElite) {
89        graphics.DrawEllipse(Pen, p.X + 2, p.Y + 2, s.Width - 4, s.Height - 4);
90      }
91    }
92  }
93}
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