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