git.gag.com Git - debian/openrocket/blob - android/src/net/sf/openrocket/android/simulation/SimulationChart.java

   1 /**\r
   2  * Copyright (C) 2009, 2010 SC 4ViewSoft SRL\r
   3  *  \r
   4  * Licensed under the Apache License, Version 2.0 (the "License");\r
   5  * you may not use this file except in compliance with the License.\r
   6  * You may obtain a copy of the License at\r
   7  *  \r
   8  *      http://www.apache.org/licenses/LICENSE-2.0\r
   9  *  \r
  10  * Unless required by applicable law or agreed to in writing, software\r
  11  * distributed under the License is distributed on an "AS IS" BASIS,\r
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
  13  * See the License for the specific language governing permissions and\r
  14  * limitations under the License.\r
  15  */\r
  16 package net.sf.openrocket.android.simulation;\r
  17 \r
  18 import java.io.Serializable;\r
  19 import java.util.ArrayList;\r
  20 import java.util.List;\r
  21 \r
  22 import net.sf.openrocket.android.util.AndroidLogWrapper;\r
  23 import net.sf.openrocket.document.OpenRocketDocument;\r
  24 import net.sf.openrocket.document.Simulation;\r
  25 import net.sf.openrocket.simulation.FlightDataBranch;\r
  26 import net.sf.openrocket.simulation.FlightDataType;\r
  27 import net.sf.openrocket.simulation.FlightEvent;\r
  28 import net.sf.openrocket.unit.Unit;\r
  29 \r
  30 import org.achartengine.chart.LineChart;\r
  31 import org.achartengine.chart.PointStyle;\r
  32 import org.achartengine.chart.XYChart;\r
  33 import org.achartengine.model.XYMultipleSeriesDataset;\r
  34 import org.achartengine.model.XYSeries;\r
  35 import org.achartengine.renderer.XYMultipleSeriesRenderer;\r
  36 import org.achartengine.renderer.XYSeriesRenderer;\r
  37 \r
  38 import android.graphics.Color;\r
  39 import android.graphics.Paint.Align;\r
  40 \r
  41 /**\r
  42  * This is really a flyweight object so we can serialize the\r
  43  * values behind a simulation chart.  Since OpenRocketDocument, FlightDataBranch,\r
  44  * FlightDataType, Unit and all the other underlying types are not serializable,\r
  45  * we have to resort to persisting just the bare minimum of information.\r
  46  * \r
  47  * This also means without further changes to FlightDataType, we cannot actually\r
  48  * restore the displayed series.\r
  49  * \r
  50  * TODO make FlightDataBranch serializable or at least reconstructable from\r
  51  * from some the name.\r
  52  * \r
  53  */\r
  54 public class SimulationChart implements Serializable {\r
  55         \r
  56         private final int simulationIndex;\r
  57         private transient FlightDataType series1;\r
  58         private transient FlightDataType series2;\r
  59         private transient List<FlightEvent> events;\r
  60         \r
  61         // Define 4 different colors and point styles to use for the series.\r
  62         // For now only 2 series are supported though.\r
  63         private final static int[] colors = new int[] { Color.BLUE, Color.YELLOW, Color.GREEN, Color.RED };\r
  64         private final static PointStyle[] styles = new PointStyle[] { PointStyle.CIRCLE, PointStyle.DIAMOND,\r
  65                 PointStyle.TRIANGLE, PointStyle.SQUARE };\r
  66 \r
  67         public SimulationChart(int simulationIndex) {\r
  68                 super();\r
  69                 this.simulationIndex = simulationIndex;\r
  70         }\r
  71 \r
  72         private static String formatFlightDataTypeAxisLabel( FlightDataType fdt ) {\r
  73                 return fdt.getName() + " (" + fdt.getUnitGroup().getDefaultUnit().toString() + ")";\r
  74         }\r
  75 \r
  76         public void setSeries1(FlightDataType series1) {\r
  77                 this.series1 = series1;\r
  78         }\r
  79 \r
  80         public FlightDataType getSeries1() {\r
  81                 return series1;\r
  82         }\r
  83 \r
  84         public void setSeries2(FlightDataType series2) {\r
  85                 this.series2 = series2;\r
  86         }\r
  87 \r
  88         public FlightDataType getSeries2() {\r
  89                 return series2;\r
  90         }\r
  91 \r
  92         public void setEvents( List<FlightEvent> events ) {\r
  93                 this.events = events;\r
  94         }\r
  95         \r
  96         public List<FlightEvent> getEvents() {\r
  97                 return events;\r
  98         }\r
  99 \r
 100         public FlightDataBranch getFlightDataBranch( OpenRocketDocument rocketDocument ) {\r
 101                 Simulation sim = rocketDocument.getSimulation(simulationIndex);\r
 102                 FlightDataBranch flightDataBranch = sim.getSimulatedData().getBranch(0);\r
 103                 return flightDataBranch;\r
 104         }\r
 105         /**\r
 106          * Executes the chart demo.\r
 107          * \r
 108          * @param context the context\r
 109          * @return the built intent\r
 110          */\r
 111         public XYChart buildChart(OpenRocketDocument rocketDocument) {\r
 112 \r
 113                 Simulation sim = rocketDocument.getSimulation(simulationIndex);\r
 114                 FlightDataBranch flightDataBranch = sim.getSimulatedData().getBranch(0);\r
 115                 FlightDataType time = FlightDataType.TYPE_TIME;\r
 116                 if (series1== null) {\r
 117                         series1 = flightDataBranch.getTypes()[1];\r
 118                 }\r
 119                 if (series2== null) {\r
 120                         series2 = flightDataBranch.getTypes()[2];\r
 121                 }\r
 122                 \r
 123                 if ( events == null ) {\r
 124                         events = new ArrayList<FlightEvent>();\r
 125                         for ( FlightEvent event : flightDataBranch.getEvents() ) {\r
 126                                 events.add(event);\r
 127                         }\r
 128                 }\r
 129 \r
 130                 /*\r
 131                  * TODO -\r
 132                  * Figure out why you can pan all over the place even where there are no visible points.\r
 133                  */\r
 134                 int seriesCount = 2;\r
 135                 // if the same series is selected twice, only plot it once.\r
 136                 if ( series1 == series2 ) {\r
 137                         seriesCount = 1;\r
 138                 }\r
 139 \r
 140                 XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer(seriesCount);\r
 141 \r
 142                 renderer.setAxisTitleTextSize(16);\r
 143                 renderer.setChartTitleTextSize(20);\r
 144                 renderer.setLabelsTextSize(15);\r
 145                 renderer.setLegendTextSize(15);\r
 146                 renderer.setPointSize(5f);\r
 147                 renderer.setXLabels(10);\r
 148                 renderer.setYLabels(10);\r
 149                 renderer.setShowGrid(true);\r
 150                 renderer.setZoomButtonsVisible(true);\r
 151                 renderer.setChartTitle(sim.getName());\r
 152                 renderer.setShowCustomTextGrid(true);\r
 153                 renderer.setXLabelsAlign(Align.RIGHT);\r
 154                 renderer.setXLabelsAngle(90);  // rotate right\r
 155                 for( FlightEvent event : events ) {\r
 156                         renderer.addXTextLabel(event.getTime(), event.getType().toString());\r
 157                 }\r
 158 \r
 159                 renderer.setMargins(new int[] { 50, 30, 0, 20 });\r
 160                 {\r
 161                         for (int i = 0; i < seriesCount; i++) {\r
 162                                 XYSeriesRenderer r = new XYSeriesRenderer();\r
 163                                 r.setColor(colors[i]);\r
 164                                 r.setPointStyle(styles[i]);\r
 165                                 r.setFillPoints(true);\r
 166                                 renderer.addSeriesRenderer(r);\r
 167                                 // setting the YAximMin to 0 locks the origins.\r
 168                                 renderer.setYAxisMin(0.0, i);\r
 169                         }\r
 170                 }\r
 171 \r
 172                 renderer.setXTitle(formatFlightDataTypeAxisLabel(time));\r
 173                 renderer.setXLabelsAlign(Align.RIGHT);\r
 174 \r
 175                 renderer.setYTitle(formatFlightDataTypeAxisLabel(series1),0);\r
 176                 renderer.setYLabelsAlign(Align.RIGHT,0);\r
 177 \r
 178                 if ( seriesCount > 1 ) {\r
 179                         renderer.setYTitle(formatFlightDataTypeAxisLabel(series2), 1);\r
 180                         renderer.setYAxisAlign(Align.RIGHT, 1);\r
 181                         renderer.setYLabelsAlign(Align.LEFT, 1);\r
 182                 }\r
 183 \r
 184                 renderer.setAxesColor(Color.LTGRAY);\r
 185                 renderer.setLabelsColor(Color.LTGRAY);\r
 186 \r
 187                 XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();\r
 188 \r
 189                 List<Double> timevalues = flightDataBranch.get(time);\r
 190                 List<Double> series1values = new ArrayList<Double>( flightDataBranch.get(series1).size() );\r
 191                 {\r
 192                         Unit u = series1.getUnitGroup().getDefaultUnit();\r
 193                         for( Double d: flightDataBranch.get(series1) ) {\r
 194                                 series1values.add( u.toUnit(d));\r
 195                         }\r
 196                 }\r
 197 \r
 198                 // compute the axis limits using timevalues and series1values.\r
 199                 double xmin = 0;\r
 200                 double ymin = 0;\r
 201                 renderer.setXAxisMin(xmin);\r
 202                 renderer.setYAxisMin(ymin);\r
 203 \r
 204                 double ymax = computeMaxValueWithPadding( series1values );\r
 205                 double xmax = Math.ceil( timevalues.get( timevalues.size()-1));\r
 206                 \r
 207                 AndroidLogWrapper.d(SimulationChart.class,"ymax = " + ymax);\r
 208                 renderer.setXAxisMax(xmax);\r
 209                 renderer.setYAxisMax(ymax);\r
 210 \r
 211                 // These configurations don't really work well just now.\r
 212                 //renderer.setPanLimits(new double[] { xmin, xmax, ymin, ymax });\r
 213                 //renderer.setZoomLimits(new double[] { xmin, xmax, ymin, ymax });\r
 214 \r
 215                 // Add first series\r
 216                 addXYSeries(dataset, series1.getName(), timevalues, series1values, 0);\r
 217 \r
 218                 if ( seriesCount > 1 ) {\r
 219                         // Add second series\r
 220                         List<Double> series2values = new ArrayList<Double>( flightDataBranch.get(series2).size() );\r
 221                         {\r
 222                                 Unit u = series2.getUnitGroup().getDefaultUnit();\r
 223                                 for( Double d: flightDataBranch.get(series2) ) {\r
 224                                         series2values.add( u.toUnit(d));\r
 225                                 }\r
 226                         }\r
 227 \r
 228                         addXYSeries(dataset, series2.getName(), timevalues, series2values, 1);\r
 229                 }\r
 230                 XYChart chart = new LineChart(dataset, renderer);\r
 231                 \r
 232                 return chart;\r
 233         }\r
 234 \r
 235         private static void addXYSeries(XYMultipleSeriesDataset dataset, String titles, List<Double> xValues, List<Double> yValues, int scale) {\r
 236                 XYSeries series = new XYSeries(titles, scale);\r
 237                 int datasize = xValues.size();\r
 238                 for( int i = 0; i<datasize; i++ ) {\r
 239                         series.add(xValues.get(i), yValues.get(i));\r
 240                 }\r
 241                 dataset.addSeries(series);\r
 242 \r
 243         }\r
 244 \r
 245         private static double computeMaxValueWithPadding( List<Double> list ) {\r
 246                 double max = list.get(0);\r
 247                 for( double v : list ) {\r
 248                         if ( v > max ) {\r
 249                                 max = v;\r
 250                         }\r
 251                 }\r
 252                 if ( max <= 0 ) return 1.0;\r
 253 \r
 254                 // Do something stupid.\r
 255                 // return:\r
 256                 //  10 if max <= 10\r
 257                 //  next 10 if 10 < max < 1000\r
 258                 //  next 100 if 1000 < max < 10,000\r
 259                 //  next 1000 if max >= 10,000\r
 260                 double numdigits = Math.floor(Math.log10(max));\r
 261                 \r
 262                 if ( numdigits <= 1.0 ) {\r
 263                         return 10.0;\r
 264                 } else if ( numdigits <= 3.0 ) {\r
 265                         return 10.0 * ( Math.ceil( max/10.0));\r
 266                 } else if ( numdigits <= 4.0 ) {\r
 267                         return 100.0 * ( Math.ceil( max/ 100.0) );\r
 268                 } else {\r
 269                         return 1000.0 * ( Math.ceil( max / 1000.0 ));\r
 270                 }\r
 271                 \r
 272         }\r
 273         \r
 274 }\r