1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 | using System;
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22 | using System.Drawing;
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23 | using System.Linq;
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24 | using System.Windows.Forms;
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25 | using System.Windows.Forms.DataVisualization.Charting;
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26 | using HeuristicLab.MainForm;
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27 | using HeuristicLab.MainForm.WindowsForms;
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28 | using System.Collections.Generic;
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29 |
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30 | namespace HeuristicLab.Problems.DataAnalysis.MultiVariate.Views {
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31 | [View("Multi-Variate Line Chart View")]
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32 | [Content(typeof(IMultiVariateDataAnalysisSolution))]
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33 | public partial class LineChartView : AsynchronousContentView {
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34 | private const string TARGETVARIABLE_SERIES_NAME = "(target)";
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35 | private const string ESTIMATEDVALUES_SERIES_NAME = "(estimated)";
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36 |
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37 | public new IMultiVariateDataAnalysisSolution Content {
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38 | get { return (IMultiVariateDataAnalysisSolution)base.Content; }
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39 | set { base.Content = value; }
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40 | }
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41 |
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42 | public LineChartView()
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43 | : base() {
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44 | InitializeComponent();
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45 | //configure axis
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46 | this.chart.ChartAreas[0].CursorX.IsUserSelectionEnabled = true;
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47 | this.chart.ChartAreas[0].AxisX.ScaleView.Zoomable = true;
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48 | this.chart.ChartAreas[0].CursorX.Interval = 1;
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49 |
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50 | this.chart.ChartAreas[0].CursorY.IsUserSelectionEnabled = true;
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51 | this.chart.ChartAreas[0].AxisY.ScaleView.Zoomable = true;
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52 | this.chart.ChartAreas[0].CursorY.Interval = 0;
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53 | }
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54 |
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55 | private void RedrawChart() {
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56 | this.chart.Series.Clear();
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57 | IEnumerable<double[]> values = Content.EstimatedValues;
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58 | if (Content != null) {
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59 | List<string> targetVariables = Content.ProblemData.TargetVariables.CheckedItems.Select(x => x.Value.Value).ToList();
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60 | for (int col = 0; col < targetVariables.Count; col++) {
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61 | string targetVariable = targetVariables[col];
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62 | this.chart.Series.Add(targetVariable + " " + TARGETVARIABLE_SERIES_NAME);
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63 | this.chart.Series[targetVariable + " " + TARGETVARIABLE_SERIES_NAME].LegendText = targetVariable;
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64 | this.chart.Series[targetVariable + " " + TARGETVARIABLE_SERIES_NAME].ChartType = SeriesChartType.FastLine;
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65 | this.chart.Series[targetVariable + " " + TARGETVARIABLE_SERIES_NAME].Points.DataBindY(Content.ProblemData.Dataset.GetVariableValues(targetVariable));
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66 |
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67 | this.chart.Series.Add(targetVariable + " " + ESTIMATEDVALUES_SERIES_NAME);
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68 | this.chart.Series[targetVariable + " " + ESTIMATEDVALUES_SERIES_NAME].LegendText = targetVariable + " " + ESTIMATEDVALUES_SERIES_NAME;
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69 | this.chart.Series[targetVariable + " " + ESTIMATEDVALUES_SERIES_NAME].ChartType = SeriesChartType.FastLine;
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70 | this.chart.Series[targetVariable + " " + ESTIMATEDVALUES_SERIES_NAME].Points.DataBindY(values.Select(x => x[col]).ToArray());
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71 | this.chart.Series[targetVariable + " " + ESTIMATEDVALUES_SERIES_NAME].Tag = Content;
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72 | }
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73 | this.UpdateStripLines();
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74 | UpdateCursorInterval();
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75 | }
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76 | }
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77 |
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78 | private void UpdateCursorInterval() {
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79 | var allValues = (from series in this.chart.Series
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80 | from point in series.Points
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81 | select point.YValues[0])
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82 | .DefaultIfEmpty(1.0);
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83 | double range = allValues.Max() - allValues.Min();
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84 | double interestingValuesRange = Math.Min(Math.Max(range, 1.0), Math.Max(range, 1.0));
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85 | double digits = (int)Math.Log10(interestingValuesRange) - 3;
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86 | double yZoomInterval = Math.Max(Math.Pow(10, digits), 10E-5);
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87 | this.chart.ChartAreas[0].CursorY.Interval = yZoomInterval;
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88 | }
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89 |
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90 | #region events
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91 | protected override void RegisterContentEvents() {
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92 | base.RegisterContentEvents();
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93 | Content.ProblemDataChanged += new EventHandler(Content_ProblemDataChanged);
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94 | }
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95 | protected override void DeregisterContentEvents() {
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96 | base.DeregisterContentEvents();
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97 | Content.ProblemDataChanged -= new EventHandler(Content_ProblemDataChanged);
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98 | }
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99 |
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100 | private void Content_ProblemDataChanged(object sender, EventArgs e) {
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101 | RedrawChart();
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102 | }
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103 |
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104 | protected override void OnContentChanged() {
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105 | base.OnContentChanged();
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106 | RedrawChart();
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107 | }
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108 |
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109 | #endregion
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110 |
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111 | private void UpdateStripLines() {
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112 | this.chart.ChartAreas[0].AxisX.StripLines.Clear();
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113 | this.CreateAndAddStripLine("Training", Color.FromArgb(20, Color.Green),
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114 | Content.ProblemData.TrainingSamplesStart.Value,
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115 | Content.ProblemData.TrainingSamplesEnd.Value);
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116 | this.CreateAndAddStripLine("Test", Color.FromArgb(20, Color.Red),
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117 | Content.ProblemData.TestSamplesStart.Value,
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118 | Content.ProblemData.TestSamplesEnd.Value);
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119 | }
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120 |
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121 | private void CreateAndAddStripLine(string title, Color c, int start, int end) {
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122 | StripLine stripLine = new StripLine();
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123 | stripLine.BackColor = c;
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124 | stripLine.Text = title;
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125 | stripLine.Font = new Font("Times New Roman", 12, FontStyle.Bold);
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126 | stripLine.StripWidth = end - start;
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127 | stripLine.IntervalOffset = start;
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128 | this.chart.ChartAreas[0].AxisX.StripLines.Add(stripLine);
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129 | }
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130 | }
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131 | }
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