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.util.List;\r
  19 \r
  20 import net.sf.openrocket.simulation.FlightDataBranch;\r
  21 import net.sf.openrocket.simulation.FlightDataType;\r
  22 import net.sf.openrocket.simulation.FlightEvent;\r
  23 \r
  24 import org.achartengine.ChartFactory;\r
  25 import org.achartengine.chart.LineChart;\r
  26 import org.achartengine.chart.PointStyle;\r
  27 import org.achartengine.chart.XYChart;\r
  28 import org.achartengine.model.XYMultipleSeriesDataset;\r
  29 import org.achartengine.model.XYSeries;\r
  30 import org.achartengine.renderer.XYMultipleSeriesRenderer;\r
  31 import org.achartengine.renderer.XYSeriesRenderer;\r
  32 \r
  33 import android.content.Context;\r
  34 import android.content.Intent;\r
  35 import android.graphics.Color;\r
  36 import android.graphics.Paint.Align;\r
  37 import android.util.Log;\r
  38 \r
  39 /**\r
  40  * Multiple temperature demo chart.\r
  41  */\r
  42 public class SimulationChart {\r
  43         \r
  44         private final static String TAG = "SimulationChart";\r
  45 \r
  46         private FlightDataBranch flightDataBranch;\r
  47         private FlightDataType series1;\r
  48         private FlightDataType series2;\r
  49         private final FlightDataType time = FlightDataType.TYPE_TIME;\r
  50         private List<FlightEvent> flightEvents;\r
  51 \r
  52         // Define 4 different colors and point styles to use for the series.\r
  53         // For now only 2 series are supported though.\r
  54         private final static int[] colors = new int[] { Color.BLUE, Color.YELLOW, Color.GREEN, Color.RED };\r
  55         private final static PointStyle[] styles = new PointStyle[] { PointStyle.CIRCLE, PointStyle.DIAMOND,\r
  56                 PointStyle.TRIANGLE, PointStyle.SQUARE };\r
  57 \r
  58         /**\r
  59          * @param flightDataBranch the flightDataBranch to set\r
  60          */\r
  61         public void setFlightDataBranch(FlightDataBranch flightDataBranch) {\r
  62                 this.flightDataBranch = flightDataBranch;\r
  63         }\r
  64 \r
  65         /**\r
  66          * @param series1 the series1 to set\r
  67          */\r
  68         public void setSeries1(FlightDataType series1) {\r
  69                 this.series1 = series1;\r
  70         }\r
  71 \r
  72         /**\r
  73          * @param series2 the series2 to set\r
  74          */\r
  75         public void setSeries2(FlightDataType series2) {\r
  76                 this.series2 = series2;\r
  77         }\r
  78 \r
  79         /**\r
  80          * @param flightEvents the flightEvents to set\r
  81          */\r
  82         public void setFlightEvents(List<FlightEvent> flightEvents) {\r
  83                 this.flightEvents = flightEvents;\r
  84         }\r
  85 \r
  86         private static String formatFlightDataTypeAxisLabel( FlightDataType fdt ) {\r
  87                 return fdt.getName() + " (" + fdt.getUnitGroup().getDefaultUnit().toString() + ")";\r
  88         }\r
  89 \r
  90         /**\r
  91          * Executes the chart demo.\r
  92          * \r
  93          * @param context the context\r
  94          * @return the built intent\r
  95          */\r
  96         public Intent execute(Context context) {\r
  97 \r
  98                 /*\r
  99                  * TODO -\r
 100                  * Figure out why you can pan all over the place even where there are no visible points.\r
 101                  */\r
 102                 int seriesCount = 2;\r
 103                 // if the same series is selected twice, only plot it once.\r
 104                 if ( series1 == series2 ) {\r
 105                         seriesCount = 1;\r
 106                 }\r
 107 \r
 108                 XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer(seriesCount);\r
 109 \r
 110                 renderer.setAxisTitleTextSize(16);\r
 111                 renderer.setChartTitleTextSize(20);\r
 112                 renderer.setLabelsTextSize(15);\r
 113                 renderer.setLegendTextSize(15);\r
 114                 renderer.setPointSize(5f);\r
 115                 renderer.setXLabels(10);\r
 116                 renderer.setYLabels(10);\r
 117                 renderer.setShowGrid(true);\r
 118                 renderer.setZoomButtonsVisible(true);\r
 119                 renderer.setChartTitle("Simulation");\r
 120 \r
 121                 renderer.setMargins(new int[] { 50, 30, 0, 20 });\r
 122                 {\r
 123                         for (int i = 0; i < seriesCount; i++) {\r
 124                                 XYSeriesRenderer r = new XYSeriesRenderer();\r
 125                                 r.setColor(colors[i]);\r
 126                                 r.setPointStyle(styles[i]);\r
 127                                 r.setFillPoints(true);\r
 128                                 renderer.addSeriesRenderer(r);\r
 129                                 // setting the YAximMin to 0 locks the origins.\r
 130                                 renderer.setYAxisMin(0.0, i);\r
 131                         }\r
 132                 }\r
 133 \r
 134                 renderer.setXTitle(formatFlightDataTypeAxisLabel(time));\r
 135                 renderer.setXLabelsAlign(Align.RIGHT);\r
 136 \r
 137                 renderer.setYTitle(formatFlightDataTypeAxisLabel(series1),0);\r
 138                 renderer.setYLabelsAlign(Align.RIGHT,0);\r
 139 \r
 140                 if ( seriesCount > 1 ) {\r
 141                         renderer.setYTitle(formatFlightDataTypeAxisLabel(series2), 1);\r
 142                         renderer.setYAxisAlign(Align.RIGHT, 1);\r
 143                         renderer.setYLabelsAlign(Align.LEFT, 1);\r
 144                 }\r
 145 \r
 146                 renderer.setAxesColor(Color.LTGRAY);\r
 147                 renderer.setLabelsColor(Color.LTGRAY);\r
 148 \r
 149                 XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();\r
 150 \r
 151                 List<Double> timevalues = flightDataBranch.get(time);\r
 152                 List<Double> series1values = flightDataBranch.get(series1);\r
 153 \r
 154                 // compute the axis limits using timevalues and series1values.\r
 155                 double xmin = 0;\r
 156                 double ymin = 0;\r
 157                 renderer.setXAxisMin(xmin);\r
 158                 renderer.setYAxisMin(ymin);\r
 159 \r
 160                 double ymax = computeMaxValueWithPadding( series1values );\r
 161                 double xmax = Math.ceil( timevalues.get( timevalues.size()-1));\r
 162                 \r
 163                 Log.d(TAG,"ymax = " + ymax);\r
 164                 renderer.setXAxisMax(xmax);\r
 165                 renderer.setYAxisMax(ymax);\r
 166 \r
 167                 // These configurations don't really work well just now.\r
 168                 //renderer.setPanLimits(new double[] { xmin, xmax, ymin, ymax });\r
 169                 //renderer.setZoomLimits(new double[] { xmin, xmax, ymin, ymax });\r
 170 \r
 171                 // Add first series\r
 172                 addXYSeries(dataset, series1.getName(), timevalues, series1values, 0);\r
 173 \r
 174                 if ( seriesCount > 1 ) {\r
 175                         // Add second series\r
 176                         addXYSeries(dataset, series2.getName(), timevalues, flightDataBranch.get(series2), 1);\r
 177                 }\r
 178                 Intent intent = getLineChartIntent(context, dataset, renderer,"Simulation");\r
 179                 return intent;\r
 180         }\r
 181 \r
 182         private static void addXYSeries(XYMultipleSeriesDataset dataset, String titles, List<Double> xValues, List<Double> yValues, int scale) {\r
 183                 XYSeries series = new XYSeries(titles, scale);\r
 184                 int datasize = xValues.size();\r
 185                 for( int i = 0; i<datasize; i++ ) {\r
 186                         series.add(xValues.get(i), yValues.get(i));\r
 187                 }\r
 188                 dataset.addSeries(series);\r
 189 \r
 190         }\r
 191 \r
 192         private static Intent getLineChartIntent(Context context, XYMultipleSeriesDataset dataset,\r
 193                         XYMultipleSeriesRenderer renderer, String activityTitle) {\r
 194                 //                  checkParameters(dataset, renderer);\r
 195                 Intent intent = new Intent(context, GraphicalActivity.class);\r
 196                 XYChart chart = new LineChart(dataset, renderer);\r
 197                 intent.putExtra(ChartFactory.CHART, chart);\r
 198                 intent.putExtra(ChartFactory.TITLE, activityTitle);\r
 199                 return intent;\r
 200         }\r
 201 \r
 202         private static double computeMaxValueWithPadding( List<Double> list ) {\r
 203                 double max = list.get(0);\r
 204                 for( double v : list ) {\r
 205                         if ( v > max ) {\r
 206                                 max = v;\r
 207                         }\r
 208                 }\r
 209                 if ( max <= 0 ) return 1.0;\r
 210 \r
 211                 // Do something stupid.\r
 212                 // return:\r
 213                 //  10 if max <= 10\r
 214                 //  next 10 if 10 < max < 1000\r
 215                 //  next 100 if 1000 < max < 10,000\r
 216                 //  next 1000 if max >= 10,000\r
 217                 double numdigits = Math.floor(Math.log10(max));\r
 218                 \r
 219                 if ( numdigits <= 1.0 ) {\r
 220                         return 10.0;\r
 221                 } else if ( numdigits <= 3.0 ) {\r
 222                         return 10.0 * ( Math.ceil( max/10.0));\r
 223                 } else if ( numdigits <= 4.0 ) {\r
 224                         return 100.0 * ( Math.ceil( max/ 100.0) );\r
 225                 } else {\r
 226                         return 1000.0 * ( Math.ceil( max / 1000.0 ));\r
 227                 }\r
 228                 \r
 229         }\r
 230         \r
 231 }\r