MOA 12.03
Real Time Analytics for Data Streams
LineGraphViewPanel.java
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00001 /*
00002  *    LineGraphViewPanel.java
00003  *    Copyright (C) 2007 University of Waikato, Hamilton, New Zealand
00004  *    @author Richard Kirkby (rkirkby@cs.waikato.ac.nz)
00005  *
00006  *    This program is free software; you can redistribute it and/or modify
00007  *    it under the terms of the GNU General Public License as published by
00008  *    the Free Software Foundation; either version 3 of the License, or
00009  *    (at your option) any later version.
00010  *
00011  *    This program is distributed in the hope that it will be useful,
00012  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  *    GNU General Public License for more details.
00015  *
00016  *    You should have received a copy of the GNU General Public License
00017  *    along with this program. If not, see <http://www.gnu.org/licenses/>.
00018  *    
00019  */
00020 package moa.gui;
00021 
00022 import java.awt.BasicStroke;
00023 import java.awt.Color;
00024 import java.awt.Graphics;
00025 import java.awt.Graphics2D;
00026 import java.awt.Shape;
00027 import java.awt.geom.GeneralPath;
00028 import java.util.ArrayList;
00029 import java.util.List;
00030 
00031 import javax.swing.JPanel;
00032 import javax.swing.table.AbstractTableModel;
00033 
00034 import moa.evaluation.LearningCurve;
00035 
00042 public class LineGraphViewPanel extends JPanel {
00043 
00044     private static final long serialVersionUID = 1L;
00045 
00046     static final BasicStroke lineStroke = new BasicStroke(3.0f);
00047 
00048     protected class PlotLine {
00049 
00050         public LearningCurve curve;
00051 
00052         public Color colour;
00053 
00054         public int xAxisIndex;
00055 
00056         public int yAxisIndex;
00057 
00058         public double xMin;
00059 
00060         public double xMax;
00061 
00062         public double yMin;
00063 
00064         public double yMax;
00065 
00066         public float convertX(double x) {
00067             return (float) ((x - this.xMin) / (this.xMax - this.xMin));
00068         }
00069 
00070         public float convertY(double y) {
00071             return (float) ((y - this.yMin) / (this.yMax - this.yMin));
00072         }
00073 
00074         public Shape getShapeToPlot() {
00075             GeneralPath path = new GeneralPath();
00076             if (this.curve.numEntries() > 0) {
00077                 path.moveTo(convertX(this.curve.getMeasurement(0,
00078                         this.xAxisIndex)), convertY(this.curve.getMeasurement(
00079                         0, this.yAxisIndex)));
00080                 for (int i = 1; i < this.curve.numEntries(); i++) {
00081                     path.lineTo(convertX(this.curve.getMeasurement(i,
00082                             this.xAxisIndex)), convertY(this.curve.getMeasurement(i, this.yAxisIndex)));
00083                 }
00084             }
00085             return path;
00086         }
00087     }
00088 
00089     protected class PlotPanel extends JPanel {
00090 
00091         private static final long serialVersionUID = 1L;
00092 
00093         @Override
00094         public void paint(Graphics g) {
00095             g.setColor(getBackground());
00096             g.fillRect(0, 0, getWidth(), getHeight());
00097             Graphics2D g2 = (Graphics2D) g;
00098             g2.scale(getWidth(), getHeight());
00099             g2.setStroke(lineStroke);
00100             for (PlotLine plotLine : LineGraphViewPanel.this.plotLines) {
00101                 g2.setPaint(plotLine.colour);
00102                 g2.draw(plotLine.getShapeToPlot());
00103             }
00104         }
00105     }
00106 
00107     protected class PlotTableModel extends AbstractTableModel {
00108 
00109         private static final long serialVersionUID = 1L;
00110 
00111         @Override
00112         public String getColumnName(int col) {
00113             switch (col) {
00114                 case 0:
00115                     return "source";
00116                 case 1:
00117                     return "colour";
00118                 case 2:
00119                     return "x-axis";
00120                 case 3:
00121                     return "y-axis";
00122                 case 4:
00123                     return "x-min";
00124                 case 5:
00125                     return "x-max";
00126                 case 6:
00127                     return "y-min";
00128                 case 7:
00129                     return "y-max";
00130             }
00131             return null;
00132         }
00133 
00134         @Override
00135         public int getColumnCount() {
00136             return 8;
00137         }
00138 
00139         @Override
00140         public int getRowCount() {
00141             return LineGraphViewPanel.this.plotLines.size();
00142         }
00143 
00144         @Override
00145         public Object getValueAt(int row, int col) {
00146             PlotLine plotLine = LineGraphViewPanel.this.plotLines.get(row);
00147             switch (col) {
00148                 case 0:
00149                     return plotLine.curve;
00150                 case 1:
00151                     return plotLine.colour;
00152                 case 2:
00153                     return plotLine.curve.getMeasurementName(plotLine.xAxisIndex);
00154                 case 3:
00155                     return plotLine.curve.getMeasurementName(plotLine.yAxisIndex);
00156                 case 4:
00157                     return plotLine.xMin;
00158                 case 5:
00159                     return plotLine.xMax;
00160                 case 6:
00161                     return plotLine.yMin;
00162                 case 7:
00163                     return plotLine.yMax;
00164             }
00165             return null;
00166         }
00167 
00168         @Override
00169         public boolean isCellEditable(int row, int col) {
00170             return false;
00171         }
00172     }
00173 
00174     protected List<PlotLine> plotLines = new ArrayList<PlotLine>();
00175 }
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