2 * Copyright (C) 2009, 2010 SC 4ViewSoft SRL
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4 * Licensed under the Apache License, Version 2.0 (the "License");
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5 * you may not use this file except in compliance with the License.
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6 * You may obtain a copy of the License at
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8 * http://www.apache.org/licenses/LICENSE-2.0
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10 * Unless required by applicable law or agreed to in writing, software
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11 * distributed under the License is distributed on an "AS IS" BASIS,
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12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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13 * See the License for the specific language governing permissions and
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14 * limitations under the License.
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16 package net.sf.openrocket.android.simulation;
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18 import java.util.ArrayList;
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19 import java.util.List;
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21 import net.sf.openrocket.simulation.FlightDataBranch;
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22 import net.sf.openrocket.simulation.FlightDataType;
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23 import net.sf.openrocket.simulation.FlightEvent;
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24 import net.sf.openrocket.unit.Unit;
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26 import org.achartengine.ChartFactory;
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27 import org.achartengine.chart.LineChart;
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28 import org.achartengine.chart.PointStyle;
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29 import org.achartengine.chart.XYChart;
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30 import org.achartengine.model.XYMultipleSeriesDataset;
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31 import org.achartengine.model.XYSeries;
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32 import org.achartengine.renderer.XYMultipleSeriesRenderer;
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33 import org.achartengine.renderer.XYSeriesRenderer;
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35 import android.content.Context;
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36 import android.content.Intent;
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37 import android.graphics.Color;
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38 import android.graphics.Paint.Align;
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39 import android.util.Log;
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42 * Multiple temperature demo chart.
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44 public class SimulationChart {
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46 private final static String TAG = "SimulationChart";
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48 private FlightDataBranch flightDataBranch;
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49 private FlightDataType series1;
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50 private FlightDataType series2;
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51 private final FlightDataType time = FlightDataType.TYPE_TIME;
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52 private List<FlightEvent> flightEvents;
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53 private String simulationName;
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55 // Define 4 different colors and point styles to use for the series.
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56 // For now only 2 series are supported though.
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57 private final static int[] colors = new int[] { Color.BLUE, Color.YELLOW, Color.GREEN, Color.RED };
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58 private final static PointStyle[] styles = new PointStyle[] { PointStyle.CIRCLE, PointStyle.DIAMOND,
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59 PointStyle.TRIANGLE, PointStyle.SQUARE };
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62 * @param simulationName the simulationName to set
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64 public void setSimulationName(String simulationName) {
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65 this.simulationName = simulationName;
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69 * @param flightDataBranch the flightDataBranch to set
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71 public void setFlightDataBranch(FlightDataBranch flightDataBranch) {
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72 this.flightDataBranch = flightDataBranch;
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76 * @param series1 the series1 to set
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78 public void setSeries1(FlightDataType series1) {
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79 this.series1 = series1;
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83 * @param series2 the series2 to set
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85 public void setSeries2(FlightDataType series2) {
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86 this.series2 = series2;
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90 * @param flightEvents the flightEvents to set
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92 public void setFlightEvents(List<FlightEvent> flightEvents) {
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93 this.flightEvents = flightEvents;
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96 private static String formatFlightDataTypeAxisLabel( FlightDataType fdt ) {
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97 return fdt.getName() + " (" + fdt.getUnitGroup().getDefaultUnit().toString() + ")";
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101 * Executes the chart demo.
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103 * @param context the context
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104 * @return the built intent
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106 public Intent execute(Context context) {
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110 * Figure out why you can pan all over the place even where there are no visible points.
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112 int seriesCount = 2;
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113 // if the same series is selected twice, only plot it once.
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114 if ( series1 == series2 ) {
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118 XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer(seriesCount);
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120 renderer.setAxisTitleTextSize(16);
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121 renderer.setChartTitleTextSize(20);
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122 renderer.setLabelsTextSize(15);
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123 renderer.setLegendTextSize(15);
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124 renderer.setPointSize(5f);
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125 renderer.setXLabels(10);
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126 renderer.setYLabels(10);
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127 renderer.setShowGrid(true);
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128 renderer.setZoomButtonsVisible(true);
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129 renderer.setChartTitle(simulationName);
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131 renderer.setMargins(new int[] { 50, 30, 0, 20 });
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133 for (int i = 0; i < seriesCount; i++) {
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134 XYSeriesRenderer r = new XYSeriesRenderer();
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135 r.setColor(colors[i]);
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136 r.setPointStyle(styles[i]);
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137 r.setFillPoints(true);
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138 renderer.addSeriesRenderer(r);
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139 // setting the YAximMin to 0 locks the origins.
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140 renderer.setYAxisMin(0.0, i);
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144 renderer.setXTitle(formatFlightDataTypeAxisLabel(time));
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145 renderer.setXLabelsAlign(Align.RIGHT);
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147 renderer.setYTitle(formatFlightDataTypeAxisLabel(series1),0);
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148 renderer.setYLabelsAlign(Align.RIGHT,0);
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150 if ( seriesCount > 1 ) {
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151 renderer.setYTitle(formatFlightDataTypeAxisLabel(series2), 1);
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152 renderer.setYAxisAlign(Align.RIGHT, 1);
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153 renderer.setYLabelsAlign(Align.LEFT, 1);
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156 renderer.setAxesColor(Color.LTGRAY);
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157 renderer.setLabelsColor(Color.LTGRAY);
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159 XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
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161 List<Double> timevalues = flightDataBranch.get(time);
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162 List<Double> series1values = new ArrayList<Double>( flightDataBranch.get(series1).size() );
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164 Unit u = series1.getUnitGroup().getDefaultUnit();
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165 for( Double d: flightDataBranch.get(series1) ) {
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166 series1values.add( u.toUnit(d));
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170 // compute the axis limits using timevalues and series1values.
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173 renderer.setXAxisMin(xmin);
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174 renderer.setYAxisMin(ymin);
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176 double ymax = computeMaxValueWithPadding( series1values );
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177 double xmax = Math.ceil( timevalues.get( timevalues.size()-1));
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179 Log.d(TAG,"ymax = " + ymax);
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180 renderer.setXAxisMax(xmax);
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181 renderer.setYAxisMax(ymax);
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183 // These configurations don't really work well just now.
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184 //renderer.setPanLimits(new double[] { xmin, xmax, ymin, ymax });
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185 //renderer.setZoomLimits(new double[] { xmin, xmax, ymin, ymax });
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187 // Add first series
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188 addXYSeries(dataset, series1.getName(), timevalues, series1values, 0);
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190 if ( seriesCount > 1 ) {
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191 // Add second series
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192 List<Double> series2values = new ArrayList<Double>( flightDataBranch.get(series2).size() );
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194 Unit u = series2.getUnitGroup().getDefaultUnit();
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195 for( Double d: flightDataBranch.get(series2) ) {
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196 series2values.add( u.toUnit(d));
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200 addXYSeries(dataset, series2.getName(), timevalues, series2values, 1);
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202 Intent intent = getLineChartIntent(context, dataset, renderer,"Simulation");
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206 private static void addXYSeries(XYMultipleSeriesDataset dataset, String titles, List<Double> xValues, List<Double> yValues, int scale) {
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207 XYSeries series = new XYSeries(titles, scale);
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208 int datasize = xValues.size();
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209 for( int i = 0; i<datasize; i++ ) {
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210 series.add(xValues.get(i), yValues.get(i));
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212 dataset.addSeries(series);
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216 private static Intent getLineChartIntent(Context context, XYMultipleSeriesDataset dataset,
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217 XYMultipleSeriesRenderer renderer, String activityTitle) {
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218 // checkParameters(dataset, renderer);
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219 Intent intent = new Intent(context, GraphicalActivity.class);
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220 XYChart chart = new LineChart(dataset, renderer);
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221 intent.putExtra(ChartFactory.CHART, chart);
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222 intent.putExtra(ChartFactory.TITLE, activityTitle);
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226 private static double computeMaxValueWithPadding( List<Double> list ) {
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227 double max = list.get(0);
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228 for( double v : list ) {
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233 if ( max <= 0 ) return 1.0;
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235 // Do something stupid.
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238 // next 10 if 10 < max < 1000
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239 // next 100 if 1000 < max < 10,000
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240 // next 1000 if max >= 10,000
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241 double numdigits = Math.floor(Math.log10(max));
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243 if ( numdigits <= 1.0 ) {
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245 } else if ( numdigits <= 3.0 ) {
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246 return 10.0 * ( Math.ceil( max/10.0));
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247 } else if ( numdigits <= 4.0 ) {
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248 return 100.0 * ( Math.ceil( max/ 100.0) );
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250 return 1000.0 * ( Math.ceil( max / 1000.0 ));
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