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 |
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22 | using System;
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23 | using System.Drawing;
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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.Core.Views;
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27 | using HeuristicLab.MainForm;
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28 |
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29 | namespace HeuristicLab.Analysis.Views {
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30 | [View("HeatMap View")]
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31 | [Content(typeof(HeatMap), true)]
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32 | public partial class HeatMapView : ItemView {
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33 |
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34 | private static Color[] Colors;
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35 | private static int ColorsCount = 500;
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36 | private static Color[] GrayscaleColors = new Color[256];
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37 |
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38 | #region InitializeColors
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39 | static HeatMapView() {
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40 | int stepWidth = (255 * 6) / ColorsCount;
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41 | Color[] colors = new Color[ColorsCount];
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42 | int currentValue;
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43 | int currentClass;
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44 | for (int i = 0; i < ColorsCount; i++) {
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45 | currentValue = (i * stepWidth) % 255;
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46 | currentClass = (i * stepWidth) / 255;
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47 | switch (currentClass) {
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48 | case 0: { colors[i] = Color.FromArgb(255, currentValue, 0); break; }
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49 | case 1: { colors[i] = Color.FromArgb(255 - currentValue, 255, 0); break; }
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50 | case 2: { colors[i] = Color.FromArgb(0, 255, currentValue); break; }
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51 | case 3: { colors[i] = Color.FromArgb(0, 255 - currentValue, 255); break; }
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52 | case 4: { colors[i] = Color.FromArgb(currentValue, 0, 255); break; }
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53 | case 5: { colors[i] = Color.FromArgb(255, 0, 255 - currentValue); break; }
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54 | }
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55 | }
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56 | int n = (int)(ColorsCount * 0.7);
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57 | Colors = new Color[n];
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58 | for (int i = 0; i < n; i++)
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59 | Colors[i] = colors[i];
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60 | for (int i = 0; i < 256; i++)
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61 | GrayscaleColors[i] = Color.FromArgb(i, i, i);
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62 | }
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63 | #endregion
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64 |
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65 | public new HeatMap Content {
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66 | get { return (HeatMap)base.Content; }
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67 | set { base.Content = value; }
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68 | }
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69 |
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70 | public HeatMapView() {
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71 | InitializeComponent();
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72 | chart.CustomizeAllChartAreas();
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73 | }
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74 |
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75 | protected override void OnContentChanged() {
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76 | base.OnContentChanged();
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77 | if (Content == null) {
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78 | chart.Series.Clear();
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79 | } else {
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80 | UpdateChart();
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81 | }
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82 | }
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83 |
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84 | private void UpdateChart() {
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85 | chart.Series.Clear();
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86 | Series series = new Series();
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87 | series.ChartType = SeriesChartType.Point;
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88 | series.XValueType = ChartValueType.Int32;
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89 | series.YValueType = ChartValueType.Int32;
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90 | series.YAxisType = AxisType.Primary;
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91 | for (int i = 0; i < Content.Rows; i++)
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92 | for (int j = 0; j < Content.Columns; j++)
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93 | series.Points.Add(CreateDataPoint(i, j, Content[i, j]));
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94 | chart.ChartAreas[0].AxisY.Minimum = 0;
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95 | chart.ChartAreas[0].AxisY.Maximum = Content.Rows;
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96 | chart.Series.Add(series);
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97 | chart.Legends.Clear();
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98 | }
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99 |
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100 | private DataPoint CreateDataPoint(int index1, int index2, double value) {
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101 | bool grayScaleModus = grayscaledImagesCheckBox.Checked;
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102 | int n = grayScaleModus ? GrayscaleColors.Length : Colors.Length;
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103 | int colorIndex = (int)((n - 1) * value);
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104 | if (colorIndex >= n) colorIndex = n - 1;
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105 | if (colorIndex < 0) colorIndex = 0;
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106 | // invert so that red is 1, blue 0 / black is 1, white 0
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107 | colorIndex = n - colorIndex - 1;
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108 | Color color = grayScaleModus ? GrayscaleColors[colorIndex] : Colors[colorIndex];
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109 |
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110 | DataPoint p = new DataPoint(index1, index2);
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111 | p.Color = color;
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112 | p.MarkerStyle = MarkerStyle.Square;
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113 | p.ToolTip = string.Format("Solution {0} vs. solution {1}: {2}",
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114 | index1, index2, value);
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115 | return p;
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116 | }
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117 |
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118 | #region Chart Events
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119 |
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120 | private void grayscaledImagesCheckBox_CheckedChanged(object sender, EventArgs e) {
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121 | GrayscalesPictureBox.Visible = grayscaledImagesCheckBox.Checked;
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122 | ColorsPictureBox.Visible = !grayscaledImagesCheckBox.Checked;
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123 | UpdateChart();
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124 | }
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125 |
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126 | #endregion
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127 |
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128 | }
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129 |
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130 | }
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