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source: branches/HeuristicLab.Problems.MultiObjectiveTestFunctions/HeuristicLab.Problems.MultiObjectiveTestFunctions/3.3/Views/MOFrontScatterPlotView.cs @ 13988

Last change on this file since 13988 was 13988, checked in by bwerth, 8 years ago

#1087 moved project bugfixes
File size: 14.9 KB
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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
21using System;
22using System.Data;
23using System.Drawing;
24using System.Linq;
25using System.Text;
26using System.Windows.Forms;
27using System.Windows.Forms.DataVisualization.Charting;
28using HeuristicLab.Core.Views;
29using HeuristicLab.MainForm;
30using System.Drawing.Imaging;
31
32namespace HeuristicLab.Problems.MultiObjectiveTestFunctions {
33  [View("Scatter Plot")]
34  [Content(typeof(IMOFrontModel))]
35  public partial class MOQualitiesScatterPlotView : ItemView {
36    private const string QUALITIES = "Qualities";
37    private const string PARETO_FRONT = "Best Known Pareto Front";
38    private Series qualitySeries;
39    private Series paretoSeries;
40    private int xDim = 0;
41    private int yDim = 1;
42    int objectives = -1;
43
44    public new IMOFrontModel Content {
45      get { return (IMOFrontModel)base.Content; }
46      set { base.Content = value; }
47    }
48
49    public MOQualitiesScatterPlotView()
50        : base() {
51      InitializeComponent();
52
53      BuildEmptySeries();
54
55      //start with qualities toggled ON
56      qualitySeries.Points.AddXY(0, 0);
57
58      this.chart.TextAntiAliasingQuality = TextAntiAliasingQuality.High;
59      this.chart.AxisViewChanged += new EventHandler<System.Windows.Forms.DataVisualization.Charting.ViewEventArgs>(chart_AxisViewChanged);
60
61      //configure axis
62      this.chart.CustomizeAllChartAreas();
63      this.chart.ChartAreas[0].AxisX.Title = "Objective " + xDim;
64      this.chart.ChartAreas[0].CursorX.IsUserSelectionEnabled = true;
65      this.chart.ChartAreas[0].AxisX.ScaleView.Zoomable = true;
66      this.chart.ChartAreas[0].CursorX.Interval = 1;
67      this.chart.ChartAreas[0].CursorY.Interval = 1;
68
69      this.chart.ChartAreas[0].AxisY.Title = "Objective " + yDim;
70      this.chart.ChartAreas[0].CursorY.IsUserSelectionEnabled = true;
71      this.chart.ChartAreas[0].AxisY.ScaleView.Zoomable = true;
72      this.chart.ChartAreas[0].AxisY.IsStartedFromZero = true;
73    }
74
75    protected override void RegisterContentEvents() {
76      base.RegisterContentEvents();
77      this.chart.GetToolTipText += new System.EventHandler<ToolTipEventArgs>(this.Chart_GetToolTipText);
78    }
79
80    protected override void DeregisterContentEvents() {
81      base.DeregisterContentEvents();
82      this.chart.GetToolTipText -= new System.EventHandler<ToolTipEventArgs>(this.Chart_GetToolTipText);
83    }
84
85    private void Chart_GetToolTipText(object sender, ToolTipEventArgs e) {
86      if (e.HitTestResult.ChartElementType == ChartElementType.LegendItem) {
87        if (e.HitTestResult.Series == paretoSeries && (Content.ParetoFront == null || Content.ParetoFront.Length == 0)) {
88          e.Text = "No optimal pareto front is available for this problem with this number of objectives";
89        }
90        if (e.HitTestResult.Series == paretoSeries && (xDim >= Content.Objectives || yDim >= Content.Objectives)) {
91          e.Text = "The optimal pareto front can only be displayed in  Objective Space";
92        }
93      }
94
95      // Check selected chart element and set tooltip text
96      if (e.HitTestResult.ChartElementType == ChartElementType.DataPoint) {
97        int i = e.HitTestResult.PointIndex;
98        StringBuilder toolTippText = new StringBuilder();
99        DataPoint qp = e.HitTestResult.Series.Points[i];
100        toolTippText.Append("Objective " + xDim + " = " + qp.XValue + "\n");
101        toolTippText.Append("Objective " + yDim + " = " + qp.YValues[0]);
102
103        Series s = e.HitTestResult.Series;
104        if (s.Equals(this.chart.Series[QUALITIES])) {
105          double[] dp = Content.Solutions[i];
106          toolTippText.Append("\nSolution: {");
107          for (int j = 0; j < dp.Length; j++) {
108            toolTippText.Append(dp[j]);
109            toolTippText.Append(";");
110          }
111          toolTippText.Remove(toolTippText.Length - 1, 1);
112          toolTippText.Append("}");
113          e.Text = toolTippText.ToString();
114        }
115
116
117      }
118    }
119
120    protected override void OnContentChanged() {
121      base.OnContentChanged();
122      if (Content == null) return;
123      if (objectives != Content.Objectives) {
124        AddMenuItems();
125        objectives = Content.Objectives;
126      }
127      if (Content.ParetoFront == null && chart.Series.Contains(paretoSeries)) {
128        Series s = this.chart.Series[PARETO_FRONT];
129        paretoSeries = null;
130        this.chart.Series.Remove(s);
131
132      } else if (Content.ParetoFront != null && !chart.Series.Contains(paretoSeries)) {
133        this.chart.Series.Add(PARETO_FRONT);
134        paretoSeries = this.chart.Series[PARETO_FRONT];
135        this.chart.Series[PARETO_FRONT].LegendText = PARETO_FRONT;
136        this.chart.Series[PARETO_FRONT].ChartType = SeriesChartType.FastPoint;
137      }
138      UpdateChart();
139    }
140
141    private void UpdateChart() {
142      if (InvokeRequired) Invoke((Action)UpdateChart);
143      else {
144        if (Content != null) {
145          this.UpdateSeries();
146          if (!this.chart.Series.Any(s => s.Points.Count > 0))
147            this.ClearChart();
148        }
149      }
150    }
151
152    private void UpdateCursorInterval() {
153      var estimatedValues = this.chart.Series[QUALITIES].Points.Select(x => x.XValue).DefaultIfEmpty(1.0);
154      var targetValues = this.chart.Series[QUALITIES].Points.Select(x => x.YValues[0]).DefaultIfEmpty(1.0);
155      double estimatedValuesRange = estimatedValues.Max() - estimatedValues.Min();
156      double targetValuesRange = targetValues.Max() - targetValues.Min();
157      double interestingValuesRange = Math.Min(Math.Max(targetValuesRange, 1.0), Math.Max(estimatedValuesRange, 1.0));
158      double digits = (int)Math.Log10(interestingValuesRange) - 3;
159      double zoomInterval = Math.Max(Math.Pow(10, digits), 10E-5);
160      this.chart.ChartAreas[0].CursorX.Interval = zoomInterval;
161      this.chart.ChartAreas[0].CursorY.Interval = zoomInterval;
162
163      this.chart.ChartAreas[0].AxisX.ScaleView.SmallScrollSize = zoomInterval;
164      this.chart.ChartAreas[0].AxisY.ScaleView.SmallScrollSize = zoomInterval;
165
166      this.chart.ChartAreas[0].AxisX.ScaleView.SmallScrollMinSizeType = DateTimeIntervalType.Number;
167      this.chart.ChartAreas[0].AxisX.ScaleView.SmallScrollMinSize = zoomInterval;
168      this.chart.ChartAreas[0].AxisY.ScaleView.SmallScrollMinSizeType = DateTimeIntervalType.Number;
169      this.chart.ChartAreas[0].AxisY.ScaleView.SmallScrollMinSize = zoomInterval;
170
171      if (digits < 0) {
172        this.chart.ChartAreas[0].AxisX.LabelStyle.Format = "F" + (int)Math.Abs(digits);
173        this.chart.ChartAreas[0].AxisY.LabelStyle.Format = "F" + (int)Math.Abs(digits);
174      } else {
175        this.chart.ChartAreas[0].AxisX.LabelStyle.Format = "F0";
176        this.chart.ChartAreas[0].AxisY.LabelStyle.Format = "F0";
177      }
178    }
179
180    private void UpdateSeries() {
181      if (InvokeRequired) Invoke((Action)UpdateSeries);
182      else {
183
184        if (this.chart.Series.Contains(qualitySeries) && qualitySeries.Points.Count() != 0) {
185          fillSeries(Content.Qualities, Content.Solutions, qualitySeries);
186        }
187        if (this.chart.Series.Contains(paretoSeries) && paretoSeries.Points.Count() != 0) {
188          fillSeries(Content.ParetoFront, null, paretoSeries);
189        }
190
191
192        double minX = Double.MaxValue;
193        double maxX = Double.MinValue;
194        double minY = Double.MaxValue;
195        double maxY = Double.MinValue;
196        foreach (Series s in this.chart.Series) {
197          if (s.Points.Count == 0) continue;
198          minX = Math.Min(minX, s.Points.Select(p => p.XValue).Min());
199          maxX = Math.Max(maxX, s.Points.Select(p => p.XValue).Max());
200          minY = Math.Min(minY, s.Points.Select(p => p.YValues.Min()).Min());
201          maxY = Math.Max(maxY, s.Points.Select(p => p.YValues.Max()).Max());
202        }
203
204        maxX = maxX + 0.2 * Math.Abs(maxX);
205        minX = minX - 0.2 * Math.Abs(minX);
206        maxY = maxY + 0.2 * Math.Abs(maxY);
207        minY = minY - 0.2 * Math.Abs(minY);
208
209        double interestingValuesRangeX = maxX - minX;
210        double interestingValuesRangeY = maxY - minY;
211
212        int digitsX = Math.Max(0, 3 - (int)Math.Log10(interestingValuesRangeX));
213        int digitsY = Math.Max(0, 3 - (int)Math.Log10(interestingValuesRangeY));
214
215
216        maxX = Math.Round(maxX, digitsX);
217        minX = Math.Round(minX, digitsX);
218        maxY = Math.Round(maxY, digitsY);
219        minY = Math.Round(minY, digitsY);
220        if (minX > maxX) {
221          minX = 0;
222          maxX = 1;
223        }
224        if (minY > maxY) {
225          minY = 0;
226          maxY = 1;
227        }
228
229
230        this.chart.ChartAreas[0].AxisX.Maximum = maxX;
231        this.chart.ChartAreas[0].AxisX.Minimum = minX;
232        this.chart.ChartAreas[0].AxisY.Maximum = maxY;
233        this.chart.ChartAreas[0].AxisY.Minimum = minY;
234        UpdateCursorInterval();
235      }
236    }
237
238    private void ClearChart() {
239      if (chart.Series.Contains(qualitySeries)) chart.Series.Remove(qualitySeries);
240      if (chart.Series.Contains(paretoSeries)) chart.Series.Remove(paretoSeries);
241      BuildEmptySeries();
242    }
243
244    private void ToggleSeriesData(Series series) {
245      if (series.Points.Count > 0) {  //checks if series is shown
246        series.Points.Clear();
247      } else if (Content != null) {
248        switch (series.Name) {
249          case PARETO_FRONT:
250            fillSeries(Content.ParetoFront, null, this.chart.Series[PARETO_FRONT]);
251            break;
252          case QUALITIES:
253            fillSeries(Content.Qualities, Content.Solutions, this.chart.Series[QUALITIES]);
254            break;
255        }
256      }
257    }
258
259    private void chart_MouseDown(object sender, MouseEventArgs e) {
260      HitTestResult result = chart.HitTest(e.X, e.Y);
261      if (result.ChartElementType == ChartElementType.LegendItem) {
262        this.ToggleSeriesData(result.Series);
263      }
264
265    }
266
267    private void chart_MouseMove(object sender, MouseEventArgs e) {
268      HitTestResult result = chart.HitTest(e.X, e.Y);
269      if (result.ChartElementType == ChartElementType.LegendItem)
270        this.Cursor = Cursors.Hand;
271      else
272        this.Cursor = Cursors.Default;
273    }
274
275    private void chart_AxisViewChanged(object sender, System.Windows.Forms.DataVisualization.Charting.ViewEventArgs e) {
276      this.chart.ChartAreas[0].AxisX.ScaleView.Size = e.NewSize;
277      this.chart.ChartAreas[0].AxisY.ScaleView.Size = e.NewSize;
278    }
279
280    private void chart_CustomizeLegend(object sender, CustomizeLegendEventArgs e) {
281      if (this.chart.Series.Contains(qualitySeries)) e.LegendItems[0].Cells[1].ForeColor = this.chart.Series[QUALITIES].Points.Count == 0 ? Color.Gray : Color.Black;
282      if (this.chart.Series.Contains(paretoSeries)) e.LegendItems[1].Cells[1].ForeColor = this.chart.Series[PARETO_FRONT].Points.Count == 0 ? Color.Gray : Color.Black;
283    }
284
285    private void AddMenuItems() {
286      chooseDimensionToolStripMenuItem.DropDownItems.Clear();
287      chooseYDimensionToolStripMenuItem.DropDownItems.Clear();
288      if (Content == null) { return; }
289      int i = 0;
290      for (; i < Content.Objectives; i++) {
291        //add Menu Points
292        ToolStripMenuItem xItem = makeMenuItem("X", "Objective " + i, i);
293        ToolStripMenuItem yItem = makeMenuItem("Y", "Objective " + i, i);
294        xItem.Click += new System.EventHandler(this.XMenu_Click);
295        yItem.Click += new System.EventHandler(this.YMenu_Click);
296        chooseDimensionToolStripMenuItem.DropDownItems.Add(xItem);
297        chooseYDimensionToolStripMenuItem.DropDownItems.Add(yItem);
298      }
299
300      for (; i < Content.Solutions[0].Length + Content.Objectives; i++) {
301        ToolStripMenuItem xItem = makeMenuItem("X", "ProblemDimension " + (i - Content.Objectives), i);
302        ToolStripMenuItem yItem = makeMenuItem("Y", "ProblemDimension " + (i - Content.Objectives), i); ;
303        xItem.Click += new System.EventHandler(this.XMenu_Click);
304        yItem.Click += new System.EventHandler(this.YMenu_Click);
305        chooseDimensionToolStripMenuItem.DropDownItems.Add(xItem);
306        chooseYDimensionToolStripMenuItem.DropDownItems.Add(yItem);
307      }
308    }
309
310    private ToolStripMenuItem makeMenuItem(String axis, String label, int i) {
311      ToolStripMenuItem xItem = new ToolStripMenuItem();
312      xItem.Name = "obj" + i;
313      xItem.Size = new System.Drawing.Size(269, 38);
314      xItem.Text = label;
315      return xItem;
316    }
317
318    private void YMenu_Click(object sender, EventArgs e) {
319      ToolStripMenuItem item = (ToolStripMenuItem)sender;
320      yDim = Int32.Parse(item.Name.Remove(0, 3));
321      String label = item.Text;
322      this.chooseYDimensionToolStripMenuItem.Text = label;
323      this.chart.ChartAreas[0].AxisY.Title = label;
324      UpdateChart();
325    }
326
327    private void XMenu_Click(object sender, EventArgs e) {
328      ToolStripMenuItem item = (ToolStripMenuItem)sender;
329      xDim = Int32.Parse(item.Name.Remove(0, 3));
330      String label = item.Text;
331      this.chooseDimensionToolStripMenuItem.Text = label;
332      this.chart.ChartAreas[0].AxisX.Title = label;
333      UpdateChart();
334    }
335
336    private void fillSeries(double[][] qualities, double[][] solutions, Series series) {
337      series.Points.Clear();
338      if (qualities == null || qualities.Length == 0) return;
339      int jx = xDim - qualities[0].Length;
340      int jy = yDim - qualities[0].Length;
341      if ((jx >= 0 || jy >= 0) && solutions == null) {
342        return;
343      }
344      for (int i = 0; i < qualities.Length; i++) {   //Assumtion: Columnwise
345        double[] d = qualities[i];
346        double[] q = null;
347        if (jx >= 0 || jy >= 0) { q = solutions[i]; }
348        series.Points.AddXY(jx < 0 ? d[xDim] : q[jx], jy < 0 ? d[yDim] : q[jy]);
349      }
350    }
351
352    private void BuildEmptySeries() {
353
354      this.chart.Series.Add(QUALITIES);
355      qualitySeries = this.chart.Series[QUALITIES];
356
357      this.chart.Series[QUALITIES].LegendText = QUALITIES;
358      this.chart.Series[QUALITIES].ChartType = SeriesChartType.FastPoint;
359
360      this.chart.Series.Add(PARETO_FRONT);
361      paretoSeries = this.chart.Series[PARETO_FRONT];
362      paretoSeries.Color = Color.FromArgb(100, Color.Orange);
363      this.chart.Series[PARETO_FRONT].LegendText = PARETO_FRONT;
364      this.chart.Series[PARETO_FRONT].ChartType = SeriesChartType.FastPoint;
365    }
366  }
367}
368
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