Free cookie consent management tool by TermsFeed Policy Generator

source: trunk/sources/HeuristicLab.Problems.DataAnalysis.Views/3.4/Regression/RegressionSolutionGradientView.cs @ 14131

Last change on this file since 14131 was 14131, checked in by pfleck, 8 years ago

#2597:

  • Moved variable name + cursor value to the top.
  • Fixed some warnings (missing async await).
File size: 8.4 KB
RevLine 
[13812]1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2016 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.Linq;
25using System.Windows.Forms;
[13816]26using HeuristicLab.Collections;
[14014]27using HeuristicLab.Core.Views;
[13812]28using HeuristicLab.MainForm;
[13846]29using HeuristicLab.MainForm.WindowsForms;
[13812]30using HeuristicLab.Problems.DataAnalysis;
31using HeuristicLab.Visualization.ChartControlsExtensions;
32
33namespace HeuristicLab.Algorithms.DataAnalysis.Views {
[13824]34  [View("Gradient View")]
[13837]35  [Content(typeof(IRegressionSolution))]
[14014]36  public partial class RegressionSolutionGradientView : ItemView {
[13816]37    private const int DrawingSteps = 1000;
38
[13831]39    private readonly List<string> variableNames;
40    private readonly ObservableList<DensityTrackbar> trackbars;
41    private ModifiableDataset sharedFixedVariables;
[13812]42
43    private int ActiveDimension {
[13831]44      get { return trackbars.FindIndex(tb => tb.Checked); }
[13812]45    }
46
[13837]47    public new IRegressionSolution Content {
48      get { return (IRegressionSolution)base.Content; }
[13812]49      set { base.Content = value; }
50    }
51
[13824]52    public RegressionSolutionGradientView()
[13816]53      : base() {
[13831]54      variableNames = new List<string>();
[13816]55
[13831]56      trackbars = new ObservableList<DensityTrackbar>();
57      trackbars.ItemsAdded += (sender, args) => {
[13837]58        args.Items.Select(i => i.Value).ForEach(RegisterEvents);
[13816]59      };
[13831]60      trackbars.ItemsRemoved += (sender, args) => {
[13837]61        args.Items.Select(i => i.Value).ForEach(DeregisterEvents);
[13816]62      };
[13831]63      trackbars.CollectionReset += (sender, args) => {
[13837]64        args.OldItems.Select(i => i.Value).ForEach(DeregisterEvents);
65        args.Items.Select(i => i.Value).ForEach(RegisterEvents);
[13816]66      };
67
[13812]68      InitializeComponent();
69
[13816]70      // Avoid additional horizontal scrollbar
71      var vertScrollWidth = SystemInformation.VerticalScrollBarWidth;
72      tableLayoutPanel.Padding = new Padding(0, 0, vertScrollWidth, 0);
[13812]73    }
74
[13842]75    private async void UpdateConfigurationControls() {
[13831]76      variableNames.Clear();
77      trackbars.Clear();
[13812]78
[13846]79      tableLayoutPanel.SuspendRepaint();
80      tableLayoutPanel.SuspendLayout();
81
[13831]82      tableLayoutPanel.RowCount = 0;
83      tableLayoutPanel.Controls.Clear();
[13812]84
[13846]85      if (Content == null) {
86        tableLayoutPanel.ResumeLayout(false);
87        tableLayoutPanel.ResumeRepaint(false);
88        return;
89      }
[13812]90
[13831]91      variableNames.AddRange(Content.ProblemData.AllowedInputVariables);
[13812]92
[13831]93      var newTrackbars = CreateConfiguration();
[13812]94
[13831]95      sharedFixedVariables = new ModifiableDataset(variableNames, newTrackbars.Select(tb => new List<double>(1) { (double)tb.Value }));
96      gradientChart.Configure(new[] { Content }, sharedFixedVariables, variableNames.First(), DrawingSteps);
[13842]97      await gradientChart.RecalculateAsync();
[13812]98
[13842]99      // Add to table and observable lists
[13831]100      tableLayoutPanel.RowCount = variableNames.Count;
101      while (tableLayoutPanel.RowStyles.Count < variableNames.Count)
102        tableLayoutPanel.RowStyles.Add(new RowStyle(SizeType.AutoSize));
103      for (int i = 0; i < newTrackbars.Count; i++) {
104        // events registered automatically
105        trackbars.Add(newTrackbars[i]);
106        tableLayoutPanel.Controls.Add(newTrackbars[i], 0, i);
107      }
[13812]108
[13846]109      tableLayoutPanel.ResumeLayout(true);
110      tableLayoutPanel.ResumeRepaint(true);
111
[13853]112      // Init Y-axis range
113      var problemData = Content.ProblemData;
114      double min = double.MaxValue, max = double.MinValue;
115      var trainingTarget = problemData.Dataset.GetDoubleValues(problemData.TargetVariable, problemData.TrainingIndices);
116      foreach (var t in trainingTarget) {
117        if (t < min) min = t;
118        if (t > max) max = t;
119      }
120      double range = max - min;
121      const double scale = 1.0 / 3.0;
122      double axisMin, axisMax, axisInterval;
123      ChartUtil.CalculateAxisInterval(min - scale * range, max + scale * range, 5, out axisMin, out axisMax, out axisInterval);
124      gradientChart.FixedYAxisMin = axisMin;
125      gradientChart.FixedYAxisMax = axisMax;
126
[13831]127      trackbars.First().Checked = true;
[13812]128    }
129
[13831]130    private IList<DensityTrackbar> CreateConfiguration() {
[13816]131      var ranges = new List<DoubleLimit>();
[13831]132      foreach (string variableName in variableNames) {
133        var values = Content.ProblemData.Dataset.GetDoubleValues(variableName, Content.ProblemData.AllIndices);
[13812]134        double min, max, interval;
135        ChartUtil.CalculateAxisInterval(values.Min(), values.Max(), 10, out min, out max, out interval);
[13816]136        ranges.Add(new DoubleLimit(min, max));
[13812]137      }
138
[13831]139      var newTrackbars = new List<DensityTrackbar>();
140      for (int i = 0; i < variableNames.Count; i++) {
141        var name = variableNames[i];
142        var trainingData = Content.ProblemData.Dataset.GetDoubleValues(name, Content.ProblemData.TrainingIndices).ToList();
[13812]143
[13831]144        var dimensionTrackbar = new DensityTrackbar(name, ranges[i], trainingData) {
145          Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right
146        };
147        newTrackbars.Add(dimensionTrackbar);
[13812]148      }
149
[13831]150      return newTrackbars;
[13812]151    }
152
[13816]153    private void RegisterEvents(DensityTrackbar trackbar) {
[13831]154      trackbar.CheckedChanged += trackbar_CheckedChanged;
155      trackbar.ValueChanged += trackbar_ValueChanged;
156      trackbar.LimitsChanged += trackbar_LimitsChanged;
[13812]157    }
[13816]158    private void DeregisterEvents(DensityTrackbar trackbar) {
[13831]159      trackbar.CheckedChanged -= trackbar_CheckedChanged;
160      trackbar.ValueChanged -= trackbar_ValueChanged;
161      trackbar.LimitsChanged -= trackbar_LimitsChanged;
[13816]162    }
[13812]163
[14131]164    private async void trackbar_CheckedChanged(object sender, EventArgs e) {
[13831]165      var trackBar = sender as DensityTrackbar;
166      if (trackBar == null || !trackBar.Checked) return;
[13816]167      // Uncheck all others
[13831]168      foreach (var tb in trackbars.Except(new[] { trackBar }))
[13816]169        tb.Checked = false;
[13831]170      gradientChart.FreeVariable = variableNames[trackbars.IndexOf(trackBar)];
[14131]171      await gradientChart.RecalculateAsync();
[13812]172    }
[13816]173
[14131]174    private async void trackbar_LimitsChanged(object sender, EventArgs e) {
[13842]175      var trackBar = sender as DensityTrackbar;
176      if (trackBar == null || !trackBar.Checked) return;
177      gradientChart.FixedXAxisMin = trackBar.Limits.Lower;
178      gradientChart.FixedXAxisMax = trackBar.Limits.Upper;
[14131]179      await gradientChart.RecalculateAsync();
[13812]180    }
[13816]181
[14131]182    private async void trackbar_ValueChanged(object sender, EventArgs e) {
[13831]183      var trackBar = sender as DensityTrackbar;
184      if (trackBar == null) return;
185      sharedFixedVariables.SetVariableValue((double)trackBar.Value, variableNames[trackbars.IndexOf(trackBar)], 0);
[14131]186      await gradientChart.RecalculateAsync();
[13812]187    }
188
189    #region Events
190    protected override void RegisterContentEvents() {
191      base.RegisterContentEvents();
[13816]192      Content.ModelChanged += Content_ModelChanged;
193      Content.ProblemDataChanged += Content_ProblemDataChanged;
[13812]194    }
[13816]195
[13812]196    protected override void DeregisterContentEvents() {
197      base.DeregisterContentEvents();
[13816]198      Content.ModelChanged -= Content_ModelChanged;
199      Content.ProblemDataChanged -= Content_ProblemDataChanged;
[13812]200    }
201
202    protected override void OnContentChanged() {
203      base.OnContentChanged();
204      UpdateConfigurationControls();
205    }
[13816]206
[13812]207    private void Content_ModelChanged(object sender, EventArgs e) {
[13831]208      UpdateConfigurationControls();
[13812]209    }
[13816]210
[13812]211    private void Content_ProblemDataChanged(object sender, EventArgs e) {
212      UpdateConfigurationControls();
213    }
214    #endregion
[13837]215  }
216
217  internal static class Extensions {
218    public static void ForEach<T>(this IEnumerable<T> source, Action<T> action) {
[13816]219      foreach (T item in source)
220        action(item);
221    }
[13812]222  }
223}
Note: See TracBrowser for help on using the repository browser.