[3408] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[7270] | 3 | * Copyright (C) 2002-2012 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[3408] | 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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[3442] | 27 | using HeuristicLab.MainForm.WindowsForms;
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[3408] | 28 |
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[3442] | 29 | namespace HeuristicLab.Problems.DataAnalysis.Views {
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[5975] | 30 | [View("Scatter Plot")]
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[5663] | 31 | [Content(typeof(IRegressionSolution))]
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[6642] | 32 | public partial class RegressionSolutionScatterPlotView : DataAnalysisSolutionEvaluationView {
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[5663] | 33 | private const string ALL_SERIES = "All samples";
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| 34 | private const string TRAINING_SERIES = "Training samples";
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| 35 | private const string TEST_SERIES = "Test samples";
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[3408] | 36 |
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[5663] | 37 | public new IRegressionSolution Content {
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| 38 | get { return (IRegressionSolution)base.Content; }
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[3442] | 39 | set { base.Content = value; }
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| 40 | }
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| 41 |
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[5663] | 42 | public RegressionSolutionScatterPlotView()
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[3408] | 43 | : base() {
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| 44 | InitializeComponent();
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| 45 |
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| 46 | this.chart.Series.Add(ALL_SERIES);
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| 47 | this.chart.Series[ALL_SERIES].LegendText = ALL_SERIES;
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| 48 | this.chart.Series[ALL_SERIES].ChartType = SeriesChartType.FastPoint;
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| 49 |
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| 50 | this.chart.Series.Add(TRAINING_SERIES);
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| 51 | this.chart.Series[TRAINING_SERIES].LegendText = TRAINING_SERIES;
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| 52 | this.chart.Series[TRAINING_SERIES].ChartType = SeriesChartType.FastPoint;
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[3867] | 53 | this.chart.Series[TRAINING_SERIES].Points.Add(1.0);
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[3408] | 54 |
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| 55 | this.chart.Series.Add(TEST_SERIES);
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| 56 | this.chart.Series[TEST_SERIES].LegendText = TEST_SERIES;
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| 57 | this.chart.Series[TEST_SERIES].ChartType = SeriesChartType.FastPoint;
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| 58 |
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| 59 | this.chart.TextAntiAliasingQuality = TextAntiAliasingQuality.High;
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| 60 | this.chart.AxisViewChanged += new EventHandler<System.Windows.Forms.DataVisualization.Charting.ViewEventArgs>(chart_AxisViewChanged);
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| 61 |
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[4651] | 62 | //configure axis
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| 63 | this.chart.CustomizeAllChartAreas();
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[3408] | 64 | this.chart.ChartAreas[0].AxisX.Title = "Estimated Values";
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| 65 | this.chart.ChartAreas[0].CursorX.IsUserSelectionEnabled = true;
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| 66 | this.chart.ChartAreas[0].AxisX.ScaleView.Zoomable = true;
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[3707] | 67 | this.chart.ChartAreas[0].CursorX.Interval = 1;
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| 68 | this.chart.ChartAreas[0].CursorY.Interval = 1;
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[3408] | 69 |
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| 70 | this.chart.ChartAreas[0].AxisY.Title = "Target Values";
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| 71 | this.chart.ChartAreas[0].CursorY.IsUserSelectionEnabled = true;
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| 72 | this.chart.ChartAreas[0].AxisY.ScaleView.Zoomable = true;
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| 73 | this.chart.ChartAreas[0].AxisY.IsStartedFromZero = true;
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| 74 | }
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| 75 |
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[3442] | 76 | protected override void RegisterContentEvents() {
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| 77 | base.RegisterContentEvents();
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[5663] | 78 | Content.ModelChanged += new EventHandler(Content_ModelChanged);
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[3442] | 79 | Content.ProblemDataChanged += new EventHandler(Content_ProblemDataChanged);
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| 80 | }
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| 81 | protected override void DeregisterContentEvents() {
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| 82 | base.DeregisterContentEvents();
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[5663] | 83 | Content.ModelChanged -= new EventHandler(Content_ModelChanged);
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[3442] | 84 | Content.ProblemDataChanged -= new EventHandler(Content_ProblemDataChanged);
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| 85 | }
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| 86 |
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| 87 |
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[3904] | 88 | private void Content_ProblemDataChanged(object sender, EventArgs e) {
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[3462] | 89 | UpdateChart();
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[3442] | 90 | }
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[5663] | 91 | private void Content_ModelChanged(object sender, EventArgs e) {
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[3462] | 92 | UpdateSeries();
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[3442] | 93 | }
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| 94 |
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| 95 | protected override void OnContentChanged() {
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| 96 | base.OnContentChanged();
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| 97 | UpdateChart();
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| 98 | }
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| 99 |
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| 100 | private void UpdateChart() {
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| 101 | if (InvokeRequired) Invoke((Action)UpdateChart);
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| 102 | else {
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| 103 | if (Content != null) {
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[3408] | 104 | this.UpdateSeries();
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| 105 | if (!this.chart.Series.Any(s => s.Points.Count > 0))
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[3764] | 106 | this.ClearChart();
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[3408] | 107 | }
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| 108 | }
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| 109 | }
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| 110 |
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[3707] | 111 | private void UpdateCursorInterval() {
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[3710] | 112 | var estimatedValues = this.chart.Series[ALL_SERIES].Points.Select(x => x.XValue).DefaultIfEmpty(1.0);
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| 113 | var targetValues = this.chart.Series[ALL_SERIES].Points.Select(x => x.YValues[0]).DefaultIfEmpty(1.0);
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[3707] | 114 | double estimatedValuesRange = estimatedValues.Max() - estimatedValues.Min();
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| 115 | double targetValuesRange = targetValues.Max() - targetValues.Min();
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| 116 | double interestingValuesRange = Math.Min(Math.Max(targetValuesRange, 1.0), Math.Max(estimatedValuesRange, 1.0));
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| 117 | double digits = (int)Math.Log10(interestingValuesRange) - 3;
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| 118 | double zoomInterval = Math.Max(Math.Pow(10, digits), 10E-5);
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| 119 | this.chart.ChartAreas[0].CursorX.Interval = zoomInterval;
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| 120 | this.chart.ChartAreas[0].CursorY.Interval = zoomInterval;
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| 121 | }
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| 122 |
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| 123 |
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[3408] | 124 | private void UpdateSeries() {
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[3462] | 125 | if (InvokeRequired) Invoke((Action)UpdateSeries);
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| 126 | else {
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[5663] | 127 | string targetVariableName = Content.ProblemData.TargetVariable;
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[3462] | 128 | Dataset dataset = Content.ProblemData.Dataset;
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[3933] | 129 | if (this.chart.Series[ALL_SERIES].Points.Count > 0)
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| 130 | this.chart.Series[ALL_SERIES].Points.DataBindXY(Content.EstimatedValues.ToArray(), "",
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[6740] | 131 | dataset.GetDoubleValues(targetVariableName).ToArray(), "");
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[3462] | 132 | if (this.chart.Series[TRAINING_SERIES].Points.Count > 0)
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[3933] | 133 | this.chart.Series[TRAINING_SERIES].Points.DataBindXY(Content.EstimatedTrainingValues.ToArray(), "",
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[6740] | 134 | dataset.GetDoubleValues(targetVariableName, Content.ProblemData.TrainingIndizes).ToArray(), "");
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[3462] | 135 | if (this.chart.Series[TEST_SERIES].Points.Count > 0)
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[3933] | 136 | this.chart.Series[TEST_SERIES].Points.DataBindXY(Content.EstimatedTestValues.ToArray(), "",
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[6740] | 137 | dataset.GetDoubleValues(targetVariableName, Content.ProblemData.TestIndizes).ToArray(), "");
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[3408] | 138 |
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[6740] | 139 | double max = Content.EstimatedTrainingValues.Concat(Content.EstimatedTestValues.Concat(Content.EstimatedValues.Concat(dataset.GetDoubleValues(targetVariableName)))).Max();
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| 140 | double min = Content.EstimatedTrainingValues.Concat(Content.EstimatedTestValues.Concat(Content.EstimatedValues.Concat(dataset.GetDoubleValues(targetVariableName)))).Min();
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[3408] | 141 |
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[4972] | 142 | max = max + 0.2 * Math.Abs(max);
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| 143 | min = min - 0.2 * Math.Abs(min);
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[3408] | 144 |
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[4972] | 145 | double interestingValuesRange = max - min;
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| 146 | int digits = Math.Max(0, 3 - (int)Math.Log10(interestingValuesRange));
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| 147 |
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| 148 | max = Math.Round(max, digits);
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| 149 | min = Math.Round(min, digits);
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| 150 |
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[3462] | 151 | this.chart.ChartAreas[0].AxisX.Maximum = max;
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| 152 | this.chart.ChartAreas[0].AxisX.Minimum = min;
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| 153 | this.chart.ChartAreas[0].AxisY.Maximum = max;
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| 154 | this.chart.ChartAreas[0].AxisY.Minimum = min;
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[3707] | 155 | UpdateCursorInterval();
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[3462] | 156 | }
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[3408] | 157 | }
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| 158 |
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| 159 | private void ClearChart() {
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| 160 | this.chart.Series[ALL_SERIES].Points.Clear();
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| 161 | this.chart.Series[TRAINING_SERIES].Points.Clear();
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[3710] | 162 | this.chart.Series[TEST_SERIES].Points.Clear();
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[3408] | 163 | }
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| 164 |
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| 165 | private void ToggleSeriesData(Series series) {
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| 166 | if (series.Points.Count > 0) { //checks if series is shown
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| 167 | if (this.chart.Series.Any(s => s != series && s.Points.Count > 0)) {
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[3442] | 168 | series.Points.Clear();
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[3408] | 169 | }
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[3442] | 170 | } else if (Content != null) {
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[5663] | 171 | string targetVariableName = Content.ProblemData.TargetVariable;
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[3442] | 172 |
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[6982] | 173 | double[] predictedValues = null;
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| 174 | double[] targetValues = null;
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[3408] | 175 | switch (series.Name) {
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| 176 | case ALL_SERIES:
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[4468] | 177 | predictedValues = Content.EstimatedValues.ToArray();
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[6740] | 178 | targetValues = Content.ProblemData.Dataset.GetDoubleValues(targetVariableName).ToArray();
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[3408] | 179 | break;
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| 180 | case TRAINING_SERIES:
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[4468] | 181 | predictedValues = Content.EstimatedTrainingValues.ToArray();
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[6740] | 182 | targetValues = Content.ProblemData.Dataset.GetDoubleValues(targetVariableName, Content.ProblemData.TrainingIndizes).ToArray();
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[3408] | 183 | break;
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| 184 | case TEST_SERIES:
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[4468] | 185 | predictedValues = Content.EstimatedTestValues.ToArray();
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[6740] | 186 | targetValues = Content.ProblemData.Dataset.GetDoubleValues(targetVariableName, Content.ProblemData.TestIndizes).ToArray();
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[3408] | 187 | break;
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| 188 | }
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[6982] | 189 | if (predictedValues.Length == targetValues.Length)
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| 190 | series.Points.DataBindXY(predictedValues, "", targetValues, "");
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[3408] | 191 | this.chart.Legends[series.Legend].ForeColor = Color.Black;
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[3707] | 192 | UpdateCursorInterval();
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[3408] | 193 | }
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| 194 | }
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| 195 |
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| 196 | private void chart_MouseDown(object sender, MouseEventArgs e) {
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| 197 | HitTestResult result = chart.HitTest(e.X, e.Y);
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| 198 | if (result.ChartElementType == ChartElementType.LegendItem) {
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| 199 | this.ToggleSeriesData(result.Series);
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| 200 | }
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| 201 | }
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| 202 |
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| 203 | private void chart_MouseMove(object sender, MouseEventArgs e) {
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| 204 | HitTestResult result = chart.HitTest(e.X, e.Y);
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| 205 | if (result.ChartElementType == ChartElementType.LegendItem)
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| 206 | this.Cursor = Cursors.Hand;
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| 207 | else
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| 208 | this.Cursor = Cursors.Default;
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| 209 | }
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| 210 |
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| 211 | private void chart_AxisViewChanged(object sender, System.Windows.Forms.DataVisualization.Charting.ViewEventArgs e) {
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| 212 | this.chart.ChartAreas[0].AxisX.ScaleView.Size = e.NewSize;
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| 213 | this.chart.ChartAreas[0].AxisY.ScaleView.Size = e.NewSize;
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| 214 | }
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| 215 |
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| 216 | private void chart_CustomizeLegend(object sender, CustomizeLegendEventArgs e) {
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| 217 | e.LegendItems[0].Cells[1].ForeColor = this.chart.Series[ALL_SERIES].Points.Count == 0 ? Color.Gray : Color.Black;
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| 218 | e.LegendItems[1].Cells[1].ForeColor = this.chart.Series[TRAINING_SERIES].Points.Count == 0 ? Color.Gray : Color.Black;
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[3442] | 219 | e.LegendItems[2].Cells[1].ForeColor = this.chart.Series[TEST_SERIES].Points.Count == 0 ? Color.Gray : Color.Black;
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[3408] | 220 | }
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[6679] | 221 |
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| 222 | private void chart_PostPaint(object sender, ChartPaintEventArgs e) {
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| 223 | var chartArea = e.ChartElement as ChartArea;
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| 224 | if (chartArea != null) {
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| 225 | ChartGraphics chartGraphics = e.ChartGraphics;
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| 226 | using (Pen p = new Pen(Color.DarkGray)) {
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| 227 | double xmin = chartArea.AxisX.ScaleView.ViewMinimum;
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| 228 | double xmax = chartArea.AxisX.ScaleView.ViewMaximum;
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| 229 | double ymin = chartArea.AxisY.ScaleView.ViewMinimum;
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| 230 | double ymax = chartArea.AxisY.ScaleView.ViewMaximum;
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| 231 |
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| 232 | if (xmin > ymax || ymin > xmax) return;
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| 233 |
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| 234 | PointF start = PointF.Empty;
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| 235 | start.X = (float)chartGraphics.GetPositionFromAxis(chartArea.Name, chartArea.AxisX.AxisName, Math.Max(xmin, ymin));
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| 236 | start.Y = (float)chartGraphics.GetPositionFromAxis(chartArea.Name, chartArea.AxisY.AxisName, Math.Max(xmin, ymin));
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| 237 | PointF end = PointF.Empty;
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| 238 | end.X = (float)chartGraphics.GetPositionFromAxis(chartArea.Name, chartArea.AxisX.AxisName, Math.Min(xmax, ymax));
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| 239 | end.Y = (float)chartGraphics.GetPositionFromAxis(chartArea.Name, chartArea.AxisY.AxisName, Math.Min(xmax, ymax));
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| 240 |
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| 241 | chartGraphics.Graphics.DrawLine(p, chartGraphics.GetAbsolutePoint(start), chartGraphics.GetAbsolutePoint(end));
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| 242 | }
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| 243 | }
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| 244 | }
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[3408] | 245 | }
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| 246 | }
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