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source: branches/DataAnalysis/HeuristicLab.Problems.DataAnalysis.MultiVariate.Views/3.3/LineChartView.cs @ 10216

Last change on this file since 10216 was 4556, checked in by gkronber, 14 years ago

Added classes and views for analysis of symbolic time series prognosis results. #1142

File size: 5.7 KB
Line 
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
21using System;
22using System.Drawing;
23using System.Linq;
24using System.Windows.Forms;
25using System.Windows.Forms.DataVisualization.Charting;
26using HeuristicLab.MainForm;
27using HeuristicLab.MainForm.WindowsForms;
28using System.Collections.Generic;
29
30namespace HeuristicLab.Problems.DataAnalysis.MultiVariate.Views {
31  [View("Multi-Variate Line Chart View")]
32  [Content(typeof(IMultiVariateDataAnalysisSolution))]
33  public partial class LineChartView : AsynchronousContentView {
34    private const string TARGETVARIABLE_SERIES_NAME = "(target)";
35    private const string ESTIMATEDVALUES_SERIES_NAME = "(estimated)";
36
37    public new IMultiVariateDataAnalysisSolution Content {
38      get { return (IMultiVariateDataAnalysisSolution)base.Content; }
39      set { base.Content = value; }
40    }
41
42    public LineChartView()
43      : base() {
44      InitializeComponent();
45      //configure axis
46      this.chart.ChartAreas[0].CursorX.IsUserSelectionEnabled = true;
47      this.chart.ChartAreas[0].AxisX.ScaleView.Zoomable = true;
48      this.chart.ChartAreas[0].CursorX.Interval = 1;
49
50      this.chart.ChartAreas[0].CursorY.IsUserSelectionEnabled = true;
51      this.chart.ChartAreas[0].AxisY.ScaleView.Zoomable = true;
52      this.chart.ChartAreas[0].CursorY.Interval = 0;
53    }
54
55    private void RedrawChart() {
56      this.chart.Series.Clear();
57      if (Content != null) {
58        IEnumerable<double[]> values = Content.EstimatedValues;
59        List<string> targetVariables = Content.ProblemData.TargetVariables.CheckedItems.Select(x => x.Value.Value).ToList();
60        for (int col = 0; col < targetVariables.Count; col++) {
61          string targetVariable = targetVariables[col];
62          this.chart.Series.Add(targetVariable + " " + TARGETVARIABLE_SERIES_NAME);
63          this.chart.Series[targetVariable + " " + TARGETVARIABLE_SERIES_NAME].LegendText = targetVariable;
64          this.chart.Series[targetVariable + " " + TARGETVARIABLE_SERIES_NAME].ChartType = SeriesChartType.FastLine;
65          this.chart.Series[targetVariable + " " + TARGETVARIABLE_SERIES_NAME].Points.DataBindY(Content.ProblemData.Dataset.GetVariableValues(targetVariable));
66
67          this.chart.Series.Add(targetVariable + " " + ESTIMATEDVALUES_SERIES_NAME);
68          this.chart.Series[targetVariable + " " + ESTIMATEDVALUES_SERIES_NAME].LegendText = targetVariable + " " + ESTIMATEDVALUES_SERIES_NAME;
69          this.chart.Series[targetVariable + " " + ESTIMATEDVALUES_SERIES_NAME].ChartType = SeriesChartType.FastLine;
70          this.chart.Series[targetVariable + " " + ESTIMATEDVALUES_SERIES_NAME].Points.DataBindY(values.Select(x => x[col]).ToArray());
71          this.chart.Series[targetVariable + " " + ESTIMATEDVALUES_SERIES_NAME].Tag = Content;
72        }
73        this.UpdateStripLines();
74        UpdateCursorInterval();
75      }
76    }
77
78    private void UpdateCursorInterval() {
79      var allValues = (from series in this.chart.Series
80                       from point in series.Points
81                       select point.YValues[0])
82                            .DefaultIfEmpty(1.0);
83      double range = allValues.Max() - allValues.Min();
84      double interestingValuesRange = Math.Min(Math.Max(range, 1.0), Math.Max(range, 1.0));
85      double digits = (int)Math.Log10(interestingValuesRange) - 3;
86      double yZoomInterval = Math.Max(Math.Pow(10, digits), 10E-5);
87      this.chart.ChartAreas[0].CursorY.Interval = yZoomInterval;
88    }
89
90    #region events
91    protected override void RegisterContentEvents() {
92      base.RegisterContentEvents();
93      Content.ProblemDataChanged += new EventHandler(Content_ProblemDataChanged);
94    }
95    protected override void DeregisterContentEvents() {
96      base.DeregisterContentEvents();
97      Content.ProblemDataChanged -= new EventHandler(Content_ProblemDataChanged);
98    }
99
100    private void Content_ProblemDataChanged(object sender, EventArgs e) {
101      RedrawChart();
102    }
103
104    protected override void OnContentChanged() {
105      base.OnContentChanged();
106      RedrawChart();
107    }
108
109    #endregion
110
111    private void UpdateStripLines() {
112      this.chart.ChartAreas[0].AxisX.StripLines.Clear();
113      this.CreateAndAddStripLine("Training", Color.FromArgb(20, Color.Green),
114        Content.ProblemData.TrainingSamplesStart.Value,
115        Content.ProblemData.TrainingSamplesEnd.Value);
116      this.CreateAndAddStripLine("Test", Color.FromArgb(20, Color.Red),
117        Content.ProblemData.TestSamplesStart.Value,
118        Content.ProblemData.TestSamplesEnd.Value);
119    }
120
121    private void CreateAndAddStripLine(string title, Color c, int start, int end) {
122      StripLine stripLine = new StripLine();
123      stripLine.BackColor = c;
124      stripLine.Text = title;
125      stripLine.Font = new Font("Times New Roman", 12, FontStyle.Bold);
126      stripLine.StripWidth = end - start;
127      stripLine.IntervalOffset = start;
128      this.chart.ChartAreas[0].AxisX.StripLines.Add(stripLine);
129    }
130  }
131}
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