--- /dev/null
+package net.sf.openrocket.file;
+
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.io.Writer;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Locale;
+import java.util.zip.GZIPOutputStream;
+
+import net.sf.openrocket.aerodynamics.Warning;
+import net.sf.openrocket.document.OpenRocketDocument;
+import net.sf.openrocket.document.Simulation;
+import net.sf.openrocket.document.StorageOptions;
+import net.sf.openrocket.rocketcomponent.RocketComponent;
+import net.sf.openrocket.simulation.FlightData;
+import net.sf.openrocket.simulation.FlightDataBranch;
+import net.sf.openrocket.simulation.FlightEvent;
+import net.sf.openrocket.simulation.SimulationConditions;
+import net.sf.openrocket.util.MathUtil;
+import net.sf.openrocket.util.Pair;
+import net.sf.openrocket.util.Prefs;
+import net.sf.openrocket.util.Reflection;
+
+public class OpenRocketSaver extends RocketSaver {
+
+ /* Remember to update OpenRocketLoader as well! */
+ public static final String FILE_VERSION = "1.0";
+
+ private static final String OPENROCKET_CHARSET = "UTF-8";
+
+ private static final String METHOD_PACKAGE = "net.sf.openrocket.file.openrocket";
+ private static final String METHOD_SUFFIX = "Saver";
+
+ private int indent;
+ private Writer dest;
+
+ @Override
+ public void save(OutputStream output, OpenRocketDocument document, StorageOptions options)
+ throws IOException {
+
+ if (options.isCompressionEnabled()) {
+ output = new GZIPOutputStream(output);
+ }
+
+ dest = new BufferedWriter(new OutputStreamWriter(output, OPENROCKET_CHARSET));
+
+
+ this.indent = 0;
+
+ System.out.println("Writing...");
+
+ writeln("<?xml version='1.0' encoding='utf-8'?>");
+ writeln("<openrocket version=\""+FILE_VERSION+"\" creator=\"OpenRocket "
+ +Prefs.getVersion()+ "\">");
+ indent++;
+
+ // Recursively save the rocket structure
+ saveComponent(document.getRocket());
+
+ writeln("");
+
+ // Save all simulations
+ writeln("<simulations>");
+ indent++;
+ boolean first = true;
+ for (Simulation s: document.getSimulations()) {
+ if (!first)
+ writeln("");
+ first = false;
+ saveSimulation(s, options.getSimulationTimeSkip());
+ }
+ indent--;
+ writeln("</simulations>");
+
+ indent--;
+ writeln("</openrocket>");
+
+ dest.flush();
+ if (output instanceof GZIPOutputStream)
+ ((GZIPOutputStream)output).finish();
+ }
+
+
+
+ @SuppressWarnings("unchecked")
+ private void saveComponent(RocketComponent component) throws IOException {
+
+ Reflection.Method m = Reflection.findMethod(METHOD_PACKAGE, component, METHOD_SUFFIX,
+ "getElements", RocketComponent.class);
+ if (m==null) {
+ throw new RuntimeException("Unable to find saving class for component "+
+ component.getComponentName());
+ }
+
+ // Get the strings to save
+ List<String> list = (List<String>) m.invokeStatic(component);
+ int length = list.size();
+
+ if (length == 0) // Nothing to do
+ return;
+
+ if (length < 2) {
+ throw new RuntimeException("BUG, component data length less than two lines.");
+ }
+
+ // Open element
+ writeln(list.get(0));
+ indent++;
+
+ // Write parameters
+ for (int i=1; i<length-1; i++) {
+ writeln(list.get(i));
+ }
+
+ // Recursively write subcomponents
+ if (component.getChildCount() > 0) {
+ writeln("");
+ writeln("<subcomponents>");
+ indent++;
+ boolean emptyline = false;
+ for (RocketComponent subcomponent: component) {
+ if (emptyline)
+ writeln("");
+ emptyline = true;
+ saveComponent(subcomponent);
+ }
+ indent--;
+ writeln("</subcomponents>");
+ }
+
+ // Close element
+ indent--;
+ writeln(list.get(length-1));
+ }
+
+
+
+ private void saveSimulation(Simulation simulation, double timeSkip) throws IOException {
+ SimulationConditions cond = simulation.getConditions();
+
+ writeln("<simulation status=\"" + enumToXMLName(simulation.getStatus()) +"\">");
+ indent++;
+
+ writeln("<name>" + escapeXML(simulation.getName()) + "</name>");
+ // TODO: MEDIUM: Other simulators/calculators
+ writeln("<simulator>RK4Simulator</simulator>");
+ writeln("<calculator>BarrowmanCalculator</calculator>");
+ writeln("<conditions>");
+ indent++;
+
+ writeElement("configid", cond.getMotorConfigurationID());
+ writeElement("launchrodlength", cond.getLaunchRodLength());
+ writeElement("launchrodangle", cond.getLaunchRodAngle() * 180.0/Math.PI);
+ writeElement("launchroddirection", cond.getLaunchRodDirection() * 180.0/Math.PI);
+ writeElement("windaverage", cond.getWindSpeedAverage());
+ writeElement("windturbulence", cond.getWindTurbulenceIntensity());
+ writeElement("launchaltitude", cond.getLaunchAltitude());
+ writeElement("launchlatitude", cond.getLaunchLatitude());
+
+ if (cond.isISAAtmosphere()) {
+ writeln("<atmosphere model=\"isa\"/>");
+ } else {
+ writeln("<atmosphere model=\"extendedisa\">");
+ indent++;
+ writeElement("basetemperature", cond.getLaunchTemperature());
+ writeElement("basepressure", cond.getLaunchPressure());
+ indent--;
+ writeln("</atmosphere>");
+ }
+
+ writeElement("timestep", cond.getTimeStep());
+
+ indent--;
+ writeln("</conditions>");
+
+
+ for (String s: simulation.getSimulationListeners()) {
+ writeElement("listener", escapeXML(s));
+ }
+
+
+ // Write basic simulation data
+
+ FlightData data = simulation.getSimulatedData();
+ if (data != null) {
+ String str = "<flightdata";
+ if (!Double.isNaN(data.getMaxAltitude()))
+ str += " maxaltitude=\"" + doubleToString(data.getMaxAltitude()) + "\"";
+ if (!Double.isNaN(data.getMaxVelocity()))
+ str += " maxvelocity=\"" + doubleToString(data.getMaxVelocity()) + "\"";
+ if (!Double.isNaN(data.getMaxAcceleration()))
+ str += " maxacceleration=\"" + doubleToString(data.getMaxAcceleration()) + "\"";
+ if (!Double.isNaN(data.getMaxMachNumber()))
+ str += " maxmach=\"" + doubleToString(data.getMaxMachNumber()) + "\"";
+ if (!Double.isNaN(data.getTimeToApogee()))
+ str += " timetoapogee=\"" + doubleToString(data.getTimeToApogee()) + "\"";
+ if (!Double.isNaN(data.getFlightTime()))
+ str += " flighttime=\"" + doubleToString(data.getFlightTime()) + "\"";
+ if (!Double.isNaN(data.getGroundHitVelocity()))
+ str += " groundhitvelocity=\"" + doubleToString(data.getGroundHitVelocity()) + "\"";
+ str += ">";
+ writeln(str);
+ indent++;
+
+ for (Warning w: data.getWarningSet()) {
+ writeElement("warning", escapeXML(w.toString()));
+ }
+
+ // Check whether to store data
+ if (simulation.getStatus() == Simulation.Status.EXTERNAL) // Always store external data
+ timeSkip = 0;
+
+ if (timeSkip != StorageOptions.SIMULATION_DATA_NONE) {
+ for (int i=0; i<data.getBranchCount(); i++) {
+ FlightDataBranch branch = data.getBranch(i);
+ saveFlightDataBranch(branch, timeSkip);
+ }
+ }
+
+ indent--;
+ writeln("</flightdata>");
+ }
+
+ indent--;
+ writeln("</simulation>");
+
+ }
+
+
+
+ private void saveFlightDataBranch(FlightDataBranch branch, double timeSkip) throws IOException {
+ double previousTime = -100;
+
+ if (branch == null)
+ return;
+
+ // Retrieve the types from the branch
+ FlightDataBranch.Type[] types = branch.getTypes();
+
+ if (types.length == 0)
+ return;
+
+ // Retrieve the data from the branch
+ List<List<Double>> data = new ArrayList<List<Double>>(types.length);
+ for (int i=0; i<types.length; i++) {
+ data.add(branch.get(types[i]));
+ }
+ List<Double> timeData = branch.get(FlightDataBranch.TYPE_TIME);
+ if (timeData == null) {
+ // TODO: MEDIUM: External data may not have time data
+ throw new IllegalArgumentException("Data did not contain time data");
+ }
+
+ // Build the <databranch> tag
+ StringBuilder sb = new StringBuilder();
+ sb.append("<databranch name=\"");
+ sb.append(escapeXML(branch.getBranchName()));
+ sb.append("\" types=\"");
+ for (int i=0; i<types.length; i++) {
+ if (i > 0)
+ sb.append(",");
+ sb.append(escapeXML(types[i].getName()));
+ }
+ sb.append("\">");
+ writeln(sb.toString());
+ indent++;
+
+ // Write events
+ for (Pair<Double,FlightEvent> p: branch.getEvents()) {
+ writeln("<event time=\"" + doubleToString(p.getU())
+ + "\" type=\"" + enumToXMLName(p.getV().getType()) + "\"/>");
+ }
+
+ // Write the data
+ int length = branch.getLength();
+ if (length > 0) {
+ writeDataPointString(data, 0, sb);
+ previousTime = timeData.get(0);
+ }
+
+ for (int i=1; i < length-1; i++) {
+ if (Math.abs(timeData.get(i) - previousTime - timeSkip) <
+ Math.abs(timeData.get(i+1) - previousTime - timeSkip)) {
+ writeDataPointString(data, i, sb);
+ previousTime = timeData.get(i);
+ }
+ }
+
+ if (length > 1) {
+ writeDataPointString(data, length-1, sb);
+ }
+
+ indent--;
+ writeln("</databranch>");
+ }
+
+ private void writeDataPointString(List<List<Double>> data, int index, StringBuilder sb)
+ throws IOException {
+ sb.setLength(0);
+ sb.append("<datapoint>");
+ for (int j=0; j < data.size(); j++) {
+ if (j > 0)
+ sb.append(",");
+ sb.append(doubleToString(data.get(j).get(index)));
+ }
+ sb.append("</datapoint>");
+ writeln(sb.toString());
+ }
+
+
+
+ private void writeElement(String element, Object content) throws IOException {
+ if (content == null)
+ content = "";
+ writeln("<"+element+">"+content+"</"+element+">");
+ }
+
+
+
+ private void writeln(String str) throws IOException {
+ if (str.length() == 0) {
+ dest.write("\n");
+ return;
+ }
+ String s="";
+ for (int i=0; i<indent; i++)
+ s=s+" ";
+ s = s+str+"\n";
+ dest.write(s);
+ }
+
+
+ /**
+ * Return a string of the double value with suitable precision.
+ * The string is the shortest representation of the value including the
+ * required precision.
+ *
+ * @param d the value to present.
+ * @return a representation with suitable precision.
+ */
+ public static final String doubleToString(double d) {
+
+ // Check for special cases
+ if (MathUtil.equals(d, 0))
+ return "0";
+
+ if (Double.isNaN(d))
+ return "NaN";
+
+ if (Double.isInfinite(d)) {
+ if (d < 0)
+ return "-Inf";
+ else
+ return "Inf";
+ }
+
+
+ double abs = Math.abs(d);
+
+ if (abs < 0.001) {
+ // Compact exponential notation
+ int exp = 0;
+
+ while (abs < 1.0) {
+ abs *= 10;
+ exp++;
+ }
+
+ String sign = (d < 0) ? "-" : "";
+ return sign + String.format((Locale)null, "%.4fe-%d", abs, exp);
+ }
+ if (abs < 0.01)
+ return String.format((Locale)null, "%.7f", d);
+ if (abs < 0.1)
+ return String.format((Locale)null, "%.6f", d);
+ if (abs < 1)
+ return String.format((Locale)null, "%.5f", d);
+ if (abs < 10)
+ return String.format((Locale)null, "%.4f", d);
+ if (abs < 100)
+ return String.format((Locale)null, "%.3f", d);
+ if (abs < 1000)
+ return String.format((Locale)null, "%.2f", d);
+ if (abs < 10000)
+ return String.format((Locale)null, "%.1f", d);
+ if (abs < 100000000.0)
+ return String.format((Locale)null, "%.0f", d);
+
+ // Compact exponential notation
+ int exp = 0;
+ while (abs >= 10.0) {
+ abs /= 10;
+ exp++;
+ }
+
+ String sign = (d < 0) ? "-" : "";
+ return sign + String.format((Locale)null, "%.4fe%d", abs, exp);
+ }
+
+
+
+ public static void main(String[] arg) {
+ double d = -0.000000123456789123;
+
+
+ for (int i=0; i< 20; i++) {
+ String str = doubleToString(d);
+ System.out.println(str + " -> " + Double.parseDouble(str));
+ d *= 10;
+ }
+
+
+ System.out.println("Value: "+ Double.parseDouble("1.2345e9"));
+
+ }
+
+
+ /**
+ * Return the XML equivalent of an enum name.
+ *
+ * @param e the enum to save.
+ * @return the corresponding XML name.
+ */
+ public static String enumToXMLName(Enum<?> e) {
+ return e.name().toLowerCase().replace("_", "");
+ }
+
+}
projects / debian / openrocket / blobdiff