Merge pull request #2173 from SiboVG/issue-2137
[#2137] Import mass and CG from RASAero sims
This commit is contained in:
Sibo Van Gool
GitHub
commit
27de9f6692
@ -29,7 +29,7 @@
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<!-- JAR -->
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<target name="jar" depends="jar-core,jar-swing">
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<target name="jar" depends="clean,jar-core,jar-swing">
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</target>
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<target name="jar-core" depends="build-core">
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@ -116,7 +116,7 @@ public abstract class AbstractMotorLoader implements MotorLoader {
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* @param designation the motor designation.
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* @return the designation with a possible delay removed.
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*/
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protected static String removeDelay(String designation) {
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public static String removeDelay(String designation) {
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if (designation.matches(".*-([0-9]+|[pP])$")) {
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designation = designation.substring(0, designation.lastIndexOf('-'));
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}
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@ -112,15 +112,29 @@ public class RASAeroCommonConstants {
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public static final String SIMULATION_LIST = "SimulationList";
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public static final String SIMULATION = "Simulation";
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public static final String SUSTAINER_ENGINE = "SustainerEngine";
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// TODO: SustainerLaunchWt, SustainerCG?
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public static final String SUSTAINER_LAUNCH_WT = "SustainerLaunchWt";
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public static final String SUSTAINER_NOZZLE_DIAMETER = "SustainerNozzleDiameter";
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public static final String SUSTAINER_CG = "SustainerCG";
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public static final String SUSTAINER_IGNITION_DELAY = "SustainerIgnitionDelay";
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public static final String BOOSTER1_ENGINE = "Booster1Engine";
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public static final String BOOSTER1_SEPARATION_DELAY = "Booster1SeparationDelay"; // Delay after booster burnout to separate
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public static final String BOOSTER1_IGNITION_DELAY = "Booster1IgnitionDelay";
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public static final String BOOSTER1_LAUNCH_WT = "Booster1LaunchWt";
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public static final String BOOSTER1_NOZZLE_DIAMETER = "Booster1NozzleDiameter";
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public static final String BOOSTER1_CG = "Booster1CG";
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public static final String INCLUDE_BOOSTER1 = "IncludeBooster1";
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public static final String BOOSTER2_ENGINE = "Booster2Engine";
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public static final String BOOSTER2_SEPARATION_DELAY = "Booster2Delay"; // Delay after booster burnout to separate
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public static final String BOOSTER2_LAUNCH_WT = "Booster2LaunchWt";
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public static final String BOOSTER2_NOZZLE_DIAMETER = "Booster2NozzleDiameter";
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public static final String BOOSTER2_CG = "Booster2CG";
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public static final String INCLUDE_BOOSTER2 = "IncludeBooster2";
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public static final String FLIGHT_TIME = "FlightTime";
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public static final String TIME_TO_APOGEE = "TimetoApogee";
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public static final String MAX_ALTITUDE = "MaxAltitude";
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public static final String MAX_VELOCITY = "MaxVelocity";
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public static final String OPTIMUM_WT = "OptimumWt";
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public static final String OPTIMUM_MAX_ALT = "OptimumMaxAlt";
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/**
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@ -143,6 +157,10 @@ public class RASAeroCommonConstants {
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* Angle conversion. RASAero is in degrees, OpenRocket in rad.
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*/
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public static final double RASAERO_TO_OPENROCKET_ANGLE = 180 / Math.PI;
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/**
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* Weight conversion from OpenRocket units to RASAero units. RASAero is in pounds (lb), OpenRocket in kilograms (kg).
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*/
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public static final double OPENROCKET_TO_RASAERO_WEIGHT = 2.20462262;
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/**
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* Temperature conversion. RASAero is in Fahrenheit, OpenRocket in Kelvin.
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*/
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@ -2,6 +2,7 @@ package net.sf.openrocket.file.rasaero.importt;
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import net.sf.openrocket.aerodynamics.WarningSet;
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import net.sf.openrocket.database.motor.ThrustCurveMotorSet;
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import net.sf.openrocket.file.motor.AbstractMotorLoader;
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import net.sf.openrocket.motor.ThrustCurveMotor;
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import net.sf.openrocket.startup.Application;
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@ -31,7 +32,7 @@ public abstract class RASAeroMotorsLoader {
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if (split.length != 2) {
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return null;
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}
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String motorName = split[0];
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String motorName = AbstractMotorLoader.removeDelay(split[0]);
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String manufacturer = split[1].replaceAll("^\\(|\\)$", ""); // Remove beginning and ending parenthesis
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for (ThrustCurveMotor motor : allMotors) {
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if (motorName.equals(motor.getDesignation()) && motor.getManufacturer().matches(manufacturer)) {
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@ -0,0 +1,485 @@
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package net.sf.openrocket.file.rasaero.importt;
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import net.sf.openrocket.aerodynamics.WarningSet;
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import net.sf.openrocket.document.Simulation;
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import net.sf.openrocket.file.DocumentLoadingContext;
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import net.sf.openrocket.file.simplesax.AbstractElementHandler;
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import net.sf.openrocket.file.simplesax.ElementHandler;
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import net.sf.openrocket.file.simplesax.PlainTextHandler;
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import net.sf.openrocket.motor.IgnitionEvent;
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import net.sf.openrocket.motor.Motor;
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import net.sf.openrocket.motor.MotorConfiguration;
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import net.sf.openrocket.motor.ThrustCurveMotor;
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import net.sf.openrocket.rocketcomponent.AxialStage;
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import net.sf.openrocket.rocketcomponent.FlightConfigurationId;
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import net.sf.openrocket.rocketcomponent.MotorMount;
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import net.sf.openrocket.rocketcomponent.Rocket;
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import net.sf.openrocket.rocketcomponent.RocketComponent;
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import net.sf.openrocket.rocketcomponent.StageSeparationConfiguration;
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import net.sf.openrocket.simulation.SimulationOptions;
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import net.sf.openrocket.util.Coordinate;
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import org.xml.sax.SAXException;
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import java.util.HashMap;
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/**
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* Handles RASAero simulation elements.
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* We will only import the motor information from it.
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*/
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public class SimulationHandler extends AbstractElementHandler {
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private final DocumentLoadingContext context;
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private final Rocket rocket;
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private final SimulationOptions launchSiteSettings;
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private final int simulationNr;
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// Motor information
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private ThrustCurveMotor sustainerEngine;
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private Double sustainerIgnitionDelay;
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private Double sustainerLaunchWt;
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private Double sustainerCG;
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private ThrustCurveMotor booster1Engine;
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private Double booster1IgnitionDelay;
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private Double booster1SeparationDelay;
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private Double booster1LaunchWt;
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private Double booster1CG;
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private Boolean includeBooster1;
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private ThrustCurveMotor booster2Engine;
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private Double booster2SeparationDelay;
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private Double booster2LaunchWt;
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private Double booster2CG;
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private Boolean includeBooster2;
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public SimulationHandler(DocumentLoadingContext context, Rocket rocket, SimulationOptions launchSiteSettings, int simulationNr) {
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this.context = context;
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this.rocket = rocket;
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this.launchSiteSettings = launchSiteSettings;
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this.simulationNr = simulationNr;
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}
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@Override
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public ElementHandler openElement(String element, HashMap<String, String> attributes, WarningSet warnings) throws SAXException {
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if (RASAeroCommonConstants.SUSTAINER_ENGINE.equals(element) || RASAeroCommonConstants.SUSTAINER_IGNITION_DELAY.equals(element)
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|| RASAeroCommonConstants.SUSTAINER_LAUNCH_WT.equals(element) || RASAeroCommonConstants.SUSTAINER_CG.equals(element)
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|| RASAeroCommonConstants.BOOSTER1_ENGINE.equals(element) || RASAeroCommonConstants.BOOSTER1_IGNITION_DELAY.equals(element)
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|| RASAeroCommonConstants.BOOSTER1_SEPARATION_DELAY.equals(element) || RASAeroCommonConstants.BOOSTER1_LAUNCH_WT.equals(element)
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|| RASAeroCommonConstants.BOOSTER1_CG.equals(element) ||RASAeroCommonConstants.INCLUDE_BOOSTER1.equals(element)
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|| RASAeroCommonConstants.BOOSTER2_ENGINE.equals(element) || RASAeroCommonConstants.BOOSTER2_SEPARATION_DELAY.equals(element)
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|| RASAeroCommonConstants.BOOSTER2_LAUNCH_WT.equals(element) || RASAeroCommonConstants.BOOSTER2_CG.equals(element)
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|| RASAeroCommonConstants.INCLUDE_BOOSTER2.equals(element)) {
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return PlainTextHandler.INSTANCE;
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}
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return null;
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}
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@Override
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public void closeElement(String element, HashMap<String, String> attributes, String content, WarningSet warnings) throws SAXException {
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if (RASAeroCommonConstants.SUSTAINER_ENGINE.equals(element)) {
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sustainerEngine = RASAeroMotorsLoader.getMotorFromRASAero(content, warnings);
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} else if (RASAeroCommonConstants.SUSTAINER_IGNITION_DELAY.equals(element)) {
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sustainerIgnitionDelay = Double.parseDouble(content);
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} else if (RASAeroCommonConstants.SUSTAINER_LAUNCH_WT.equals(element)) {
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sustainerLaunchWt = Double.parseDouble(content) / RASAeroCommonConstants.OPENROCKET_TO_RASAERO_WEIGHT;
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} else if (RASAeroCommonConstants.SUSTAINER_CG.equals(element)) {
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sustainerCG = Double.parseDouble(content) / RASAeroCommonConstants.RASAERO_TO_OPENROCKET_LENGTH;
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} else if (RASAeroCommonConstants.BOOSTER1_ENGINE.equals(element)) {
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booster1Engine = RASAeroMotorsLoader.getMotorFromRASAero(content, warnings);
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} else if (RASAeroCommonConstants.BOOSTER1_IGNITION_DELAY.equals(element)) {
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booster1IgnitionDelay = Double.parseDouble(content);
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} else if (RASAeroCommonConstants.BOOSTER1_SEPARATION_DELAY.equals(element)) {
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booster1SeparationDelay = Double.parseDouble(content);
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} else if (RASAeroCommonConstants.BOOSTER1_LAUNCH_WT.equals(element)) {
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booster1LaunchWt = Double.parseDouble(content) / RASAeroCommonConstants.OPENROCKET_TO_RASAERO_WEIGHT;
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} else if (RASAeroCommonConstants.BOOSTER1_CG.equals(element)) {
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booster1CG = Double.parseDouble(content) / RASAeroCommonConstants.RASAERO_TO_OPENROCKET_LENGTH;
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} else if (RASAeroCommonConstants.INCLUDE_BOOSTER1.equals(element)) {
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includeBooster1 = Boolean.parseBoolean(content);
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} else if (RASAeroCommonConstants.BOOSTER2_ENGINE.equals(element)) {
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booster2Engine = RASAeroMotorsLoader.getMotorFromRASAero(content, warnings);
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} else if (RASAeroCommonConstants.BOOSTER2_SEPARATION_DELAY.equals(element)) {
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booster2SeparationDelay = Double.parseDouble(content);
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} else if (RASAeroCommonConstants.BOOSTER2_LAUNCH_WT.equals(element)) {
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booster2LaunchWt = Double.parseDouble(content) / RASAeroCommonConstants.OPENROCKET_TO_RASAERO_WEIGHT;
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} else if (RASAeroCommonConstants.BOOSTER2_CG.equals(element)) {
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booster2CG = Double.parseDouble(content) / RASAeroCommonConstants.RASAERO_TO_OPENROCKET_LENGTH;
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} else if (RASAeroCommonConstants.INCLUDE_BOOSTER2.equals(element)) {
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includeBooster2 = Boolean.parseBoolean(content);
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}
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}
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@Override
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public void endHandler(String element, HashMap<String, String> attributes, String content, WarningSet warnings) throws SAXException {
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FlightConfigurationId fcid = new FlightConfigurationId();
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rocket.createFlightConfiguration(fcid);
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// Select if this is the first config
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if (rocket.getSelectedConfiguration().getId().equals(FlightConfigurationId.DEFAULT_VALUE_FCID)) {
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rocket.setSelectedConfiguration(fcid);
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}
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// Add motors to the rocket
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MotorMount sustainerMount = addMotorToStage(0, sustainerEngine, sustainerIgnitionDelay, fcid, warnings);
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MotorMount booster1Mount = null;
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if (includeBooster1) {
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booster1Mount = addMotorToStage(1, booster1Engine, booster1IgnitionDelay, fcid, warnings);
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}
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MotorMount booster2Mount = null;
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if (includeBooster2) {
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booster2Mount = addMotorToStage(2, booster2Engine, 0.0, fcid, warnings);
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}
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// Set separation settings
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setSeparationDelay(0, 0.0, fcid);
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if (includeBooster1) {
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setSeparationDelay(1, booster1SeparationDelay, fcid);
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}
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if (includeBooster2) {
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setSeparationDelay(2, booster2SeparationDelay, fcid);
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}
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// Add a new simulation
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Simulation sim = new Simulation(rocket);
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sim.setFlightConfigurationId(fcid);
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sim.setName("Simulation " + simulationNr);
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sim.copySimulationOptionsFrom(launchSiteSettings);
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context.getOpenRocketDocument().addSimulation(sim);
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// Set the weight and CG overrides
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applyMassOverrides(warnings);
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applyCGOverrides(sustainerMount, booster1Mount, booster2Mount, fcid);
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}
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/**
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* Adds a motor to the specified stage.
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* @param stageNr The stage number
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* @param motor The motor to add
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* @param ignitionDelay The ignition delay
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* @param id The flight configuration id
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* @param warnings The warning set
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* @return The motor mount in which the motor is added, or null if no motor was added
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*/
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private MotorMount addMotorToStage(final int stageNr, final Motor motor, final Double ignitionDelay,
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final FlightConfigurationId id, final WarningSet warnings) {
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if (motor == null || rocket.getStage(stageNr) == null) {
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return null;
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}
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MotorMount mount = getMotorMountForStage(stageNr);
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if (mount == null) {
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warnings.add("No motor mount found for stage " + stageNr + ". Ignoring motor.");
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return null;
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}
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MotorConfiguration motorConfig = new MotorConfiguration(mount, id);
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motorConfig.setMotor(motor);
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// RASAero requires apogee deployment, so the sustainer motor should always be plugged
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if (stageNr == 0) {
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motorConfig.setEjectionDelay(Motor.PLUGGED_DELAY);
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}
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double delay = ignitionDelay != null ? ignitionDelay : 0.0;
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motorConfig.setIgnitionDelay(delay);
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if (stageNr < rocket.getStageCount() - 1) { // Use burnout non-last if multi-staged rocket
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motorConfig.setIgnitionEvent(IgnitionEvent.BURNOUT);
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} else {
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motorConfig.setIgnitionEvent(IgnitionEvent.AUTOMATIC);
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}
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mount.setMotorConfig(motorConfig, id);
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return mount;
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}
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private void setSeparationDelay(final int stageNr, Double separationDelay,
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final FlightConfigurationId id) {
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if (rocket.getStage(stageNr) == null) {
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return;
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}
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StageSeparationConfiguration config = rocket.getStage(stageNr).getSeparationConfigurations().get(id);
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if (separationDelay != null) {
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config.setSeparationDelay(separationDelay);
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}
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config.setSeparationEvent(StageSeparationConfiguration.SeparationEvent.BURNOUT);
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}
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/**
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* Returns the furthest back motor mount in the stage.
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* @param stage stage number
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* @return furthest back motor mount of the stage
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*/
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private MotorMount getMotorMountForStage(int stage) {
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MotorMount mount = null;
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for (RocketComponent component : rocket.getStage(stage)) {
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if (component instanceof MotorMount) {
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mount = (MotorMount) component;
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}
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}
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if (mount != null) {
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mount.setMotorMount(true);
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}
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return mount;
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}
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private void applyMassOverrides(WarningSet warnings) {
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// Don't do anything if the mass has already been overridden by a previous simulation
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if (rocket.getStage(0).isMassOverridden()) {
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return;
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}
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applySustainerMassOverride();
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applyBooster1MassOverride(warnings);
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applyBooster2MassOverride(warnings);
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}
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/**
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* Applies the mass from the RASAero simulation to the sustainer as an override, and returns the final sustainer mass.
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* Note: the sustainer motor mass is subtracted from the RASAero mass to get the final mass.
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* @return the final sustainer mass
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*/
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private double applySustainerMassOverride() {
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if (sustainerLaunchWt == null || sustainerLaunchWt == 0) {
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return 0;
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}
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// Get the sustainer motor weight
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double sustainerMotorWt = 0;
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if (sustainerEngine != null) {
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sustainerMotorWt = sustainerEngine.getLaunchMass();
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}
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double sustainerWt = sustainerLaunchWt - sustainerMotorWt;
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AxialStage sustainer = rocket.getStage(0);
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sustainer.setMassOverridden(true);
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sustainer.setSubcomponentsOverriddenMass(true);
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sustainer.setOverrideMass(sustainerWt);
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return sustainerWt;
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}
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/**
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* Applies the mass from the RASAero simulation to booster1 as an override, and returns the final booster1 mass.
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* Note: the sustainer mass and booster1 motor mass is subtracted from the RASAero mass to get the final mass.
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* @param warnings list to add import warnings to
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* @return the final booster1 mass
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*/
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private double applyBooster1MassOverride(WarningSet warnings) {
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if (!includeBooster1 || booster1LaunchWt == null || booster1LaunchWt == 0 || sustainerLaunchWt == null) {
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return 0;
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}
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// Calculate the final booster mass
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final double boosterWt;
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if (sustainerLaunchWt > booster1LaunchWt) {
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warnings.add("Sustainer wt is greater than total loaded wt of booster 1. Setting mass to 0.");
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boosterWt = 0;
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} else {
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// Get the booster motor weight
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double boosterMotorWt = 0;
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if (booster1Engine != null) {
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boosterMotorWt = booster1Engine.getLaunchMass();
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}
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boosterWt = booster1LaunchWt - boosterMotorWt - sustainerLaunchWt;
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}
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AxialStage booster = rocket.getStage(1);
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booster.setMassOverridden(true);
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booster.setSubcomponentsOverriddenMass(true);
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booster.setOverrideMass(boosterWt);
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return boosterWt;
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}
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/**
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* Applies the mass from the RASAero simulation to booster2 as an override, and returns the final booster2 mass.
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* Note: the sustainer mass, booster1 mass, and booster2 motor mass is subtracted from the RASAero mass to get the final mass.
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* @param warnings list to add import warnings to
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* @return the final booster2 mass
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*/
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private double applyBooster2MassOverride(WarningSet warnings) {
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if (!includeBooster2 || booster2LaunchWt == null || booster2LaunchWt == 0 || booster1LaunchWt == null) {
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return 0;
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}
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// Calculate the final booster mass
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final double boosterWt;
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if (booster1LaunchWt > booster2LaunchWt) {
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warnings.add("Booster1 wt is greater than total loaded wt of booster 2. Setting mass to 0.");
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boosterWt = 0;
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} else {
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// Get the booster motor weight
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double boosterMotorWt = 0;
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if (booster2Engine != null) {
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boosterMotorWt = booster2Engine.getLaunchMass();
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}
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boosterWt = booster2LaunchWt - boosterMotorWt - booster1LaunchWt;
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}
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AxialStage booster = rocket.getStage(2);
|
||||
booster.setMassOverridden(true);
|
||||
booster.setSubcomponentsOverriddenMass(true);
|
||||
booster.setOverrideMass(boosterWt);
|
||||
|
||||
return boosterWt;
|
||||
}
|
||||
|
||||
/**
|
||||
* Applies the CG extracted from the simulation to the sustainer, booster1, and booster2.
|
||||
* @param sustainerMount the sustainer motor mount
|
||||
* @param booster1Mount the booster1 motor mount
|
||||
* @param booster2Mount the booster2 motor mount
|
||||
* @param fcid the flight configuration ID of this simulation
|
||||
*/
|
||||
private void applyCGOverrides(MotorMount sustainerMount, MotorMount booster1Mount, MotorMount booster2Mount,
|
||||
FlightConfigurationId fcid) {
|
||||
// Don't do anything if the CG has already been overridden by a previous simulation
|
||||
if (rocket.getStage(0).isCGOverridden()) {
|
||||
return;
|
||||
}
|
||||
|
||||
applySustainerCGOverride(sustainerMount, fcid);
|
||||
applyBooster1CGOverride(booster1Mount, fcid);
|
||||
applyBooster2CGOverride(booster2Mount, fcid);
|
||||
}
|
||||
|
||||
/**
|
||||
* Applies the CG from the RASAero simulation to the sustainer as an override.
|
||||
* This CG value can be applied directly.
|
||||
* @param sustainerMount the sustainer motor mount
|
||||
* @param fcid the flight configuration ID of this simulation
|
||||
* @return the CG of the sustainer
|
||||
*/
|
||||
private Double applySustainerCGOverride(MotorMount sustainerMount, FlightConfigurationId fcid) {
|
||||
if (sustainerCG == null) {
|
||||
return null;
|
||||
}
|
||||
|
||||
AxialStage sustainer = rocket.getStage(0);
|
||||
|
||||
/*
|
||||
sustainerCG is the combined CG of the sustainer and its motor (if present),
|
||||
so we need to calculate the CG of the sustainer without the motor CG
|
||||
*/
|
||||
Double CG = getStageCGWithoutMotorCG(sustainer, sustainerCG, sustainerMount, sustainerEngine, fcid);
|
||||
|
||||
sustainer.setCGOverridden(true);
|
||||
sustainer.setSubcomponentsOverriddenCG(true);
|
||||
sustainer.setOverrideCGX(CG);
|
||||
|
||||
return CG;
|
||||
}
|
||||
|
||||
/**
|
||||
* Applies the CG from the RASAero simulation to booster1 as an override.
|
||||
* The CG value returned by RASAero is the aggregate CG of the sustainer and booster1.
|
||||
* To calculate the CG of booster1, we use the following formula:
|
||||
* booster1 CG = [booster1 mass x (distance between CG of sustainer and combined CG)] / (sustainer mass)
|
||||
* @param booster1Mount the booster1 motor mount
|
||||
* @param fcid the flight configuration ID of this simulation
|
||||
* @return the CG of booster1
|
||||
*/
|
||||
private Double applyBooster1CGOverride(MotorMount booster1Mount, FlightConfigurationId fcid) {
|
||||
if (!includeBooster1 || booster1CG == null || sustainerCG == null || booster1LaunchWt == null || sustainerLaunchWt == null) {
|
||||
return null;
|
||||
}
|
||||
|
||||
AxialStage booster = rocket.getStage(1);
|
||||
|
||||
// Do a back-transform of the combined CG of the sustainer and booster1 to get the CG of booster1
|
||||
Double CG = getCGFromCombinedCG(sustainerLaunchWt, booster1LaunchWt - sustainerLaunchWt, sustainerCG, booster1CG);
|
||||
|
||||
/*
|
||||
the above CG is the combined CG of booster1 and its motor (if present),
|
||||
so we need to calculate the CG of booster1 without the motor CG
|
||||
*/
|
||||
CG = getStageCGWithoutMotorCG(booster, CG, booster1Mount, booster1Engine, fcid);
|
||||
|
||||
// ! this CG is relative to the front of the sustainer, we need it referenced to the front of the booster
|
||||
CG = CG - booster.getPosition().x;
|
||||
|
||||
booster.setCGOverridden(true);
|
||||
booster.setSubcomponentsOverriddenCG(true);
|
||||
booster.setOverrideCGX(CG);
|
||||
|
||||
return CG;
|
||||
}
|
||||
|
||||
/**
|
||||
* Applies the CG from the RASAero simulation to booster2 as an override.
|
||||
* The CG value returned by RASAero is the aggregate CG of the sustainer, booster1, and booster2.
|
||||
* To calculate the CG of booster2, we use the following formula:
|
||||
* booster2 CG = [booster2 mass x (distance between CG of sustainer and combined CG)] / (sustainer mass + booster1 mass)
|
||||
* @param booster2Mount the booster1 motor mount
|
||||
* @param fcid the flight configuration ID of this simulation
|
||||
* @return the CG of booster2
|
||||
*/
|
||||
private Double applyBooster2CGOverride(MotorMount booster2Mount, FlightConfigurationId fcid) {
|
||||
if (!includeBooster2 || booster2CG == null || booster1CG == null || sustainerCG == null ||
|
||||
booster2LaunchWt == null || booster1LaunchWt == null || sustainerLaunchWt == null) {
|
||||
return null;
|
||||
}
|
||||
|
||||
AxialStage booster = rocket.getStage(2);
|
||||
|
||||
// Do a back-transform of the combined CG of the sustainer, booster1, and booster2 to get the CG of booster2
|
||||
Double CG = getCGFromCombinedCG(booster1LaunchWt, booster2LaunchWt - booster1LaunchWt, booster1CG, booster2CG);
|
||||
|
||||
/*
|
||||
the above CG is the combined CG of booster2 and its motor (if present),
|
||||
so we need to calculate the CG of booster2 without the motor CG
|
||||
*/
|
||||
CG = getStageCGWithoutMotorCG(booster, CG, booster2Mount, booster2Engine, fcid);
|
||||
|
||||
// ! this CG is relative to the front of the sustainer, we need it referenced to the front of the booster
|
||||
CG = CG - booster.getPosition().x;
|
||||
|
||||
booster.setCGOverridden(true);
|
||||
booster.setSubcomponentsOverriddenCG(true);
|
||||
booster.setOverrideCGX(CG);
|
||||
|
||||
return CG;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return the CG of object B from the CG of object A, the combined CG of A and B, and the masses of A and B.
|
||||
* @param objAMass the mass of object A (known CG)
|
||||
* @param objBMass the mass of object B (unknown CG)
|
||||
* @param objACG the CG of object A
|
||||
* @param combinedCG the combined CG of A and B
|
||||
* @return the CG of object B
|
||||
*/
|
||||
private Double getCGFromCombinedCG(Double objAMass, Double objBMass, Double objACG, Double combinedCG) {
|
||||
if (combinedCG == null || objACG == null || objAMass == null || objBMass == null) {
|
||||
return combinedCG;
|
||||
}
|
||||
return combinedCG * (1 + objAMass / objBMass) - objACG * (objAMass / objBMass);
|
||||
}
|
||||
|
||||
/**
|
||||
* Extracts the CG of a stage from a combined CG of the stage and stage motor.
|
||||
* @param stage the stage
|
||||
* @param combinedCG the combiend CG of the stage and its motor
|
||||
* @param mount the motor mount of the stage that holds the motor
|
||||
* @param motor the motor
|
||||
* @param fcid the flight configuration ID of this simulation
|
||||
* @return the CG of the stage without the motor CG
|
||||
*/
|
||||
private Double getStageCGWithoutMotorCG(AxialStage stage, Double combinedCG, MotorMount mount, ThrustCurveMotor motor,
|
||||
FlightConfigurationId fcid) {
|
||||
if (motor == null || mount == null || stage == null || combinedCG == null) {
|
||||
return combinedCG;
|
||||
}
|
||||
double stageMass = stage.getMass(); // Should be overridden by now, so don't use getSectionMass()
|
||||
double motorMass = motor.getLaunchMass();
|
||||
|
||||
Coordinate[] CGPoints = motor.getCGPoints();
|
||||
if (CGPoints != null && CGPoints.length > 1) {
|
||||
double motorPositionXRel = mount.getMotorPosition(fcid).x; // Motor position relative to the mount
|
||||
double mountLocationX = mount.getLocations()[0].x;
|
||||
double motorLocationX = mountLocationX + motorPositionXRel; // Front location of the motor
|
||||
double motorCG = motorLocationX + CGPoints[0].x;
|
||||
|
||||
return getCGFromCombinedCG(motorMass, stageMass, motorCG, combinedCG);
|
||||
}
|
||||
|
||||
return combinedCG;
|
||||
}
|
||||
}
|
||||
@ -1,20 +1,10 @@
|
||||
package net.sf.openrocket.file.rasaero.importt;
|
||||
|
||||
import net.sf.openrocket.aerodynamics.WarningSet;
|
||||
import net.sf.openrocket.document.Simulation;
|
||||
import net.sf.openrocket.file.DocumentLoadingContext;
|
||||
import net.sf.openrocket.file.simplesax.AbstractElementHandler;
|
||||
import net.sf.openrocket.file.simplesax.ElementHandler;
|
||||
import net.sf.openrocket.file.simplesax.PlainTextHandler;
|
||||
import net.sf.openrocket.motor.IgnitionEvent;
|
||||
import net.sf.openrocket.motor.Motor;
|
||||
import net.sf.openrocket.motor.MotorConfiguration;
|
||||
import net.sf.openrocket.motor.ThrustCurveMotor;
|
||||
import net.sf.openrocket.rocketcomponent.FlightConfigurationId;
|
||||
import net.sf.openrocket.rocketcomponent.MotorMount;
|
||||
import net.sf.openrocket.rocketcomponent.Rocket;
|
||||
import net.sf.openrocket.rocketcomponent.RocketComponent;
|
||||
import net.sf.openrocket.rocketcomponent.StageSeparationConfiguration;
|
||||
import net.sf.openrocket.simulation.SimulationOptions;
|
||||
import org.xml.sax.SAXException;
|
||||
|
||||
@ -52,162 +42,4 @@ public class SimulationListHandler extends AbstractElementHandler {
|
||||
public void endHandler(String element, HashMap<String, String> attributes, String content, WarningSet warnings) throws SAXException {
|
||||
RASAeroMotorsLoader.clearAllMotors();
|
||||
}
|
||||
|
||||
/**
|
||||
* Handles RASAero simulation elements.
|
||||
* We will only import the motor information from it.
|
||||
*/
|
||||
private static class SimulationHandler extends AbstractElementHandler {
|
||||
private final DocumentLoadingContext context;
|
||||
private final Rocket rocket;
|
||||
private final SimulationOptions launchSiteSettings;
|
||||
private final int simulationNr;
|
||||
|
||||
// Motor information
|
||||
private ThrustCurveMotor sustainerEngine;
|
||||
private Double sustainerIgnitionDelay;
|
||||
private ThrustCurveMotor booster1Engine;
|
||||
private Double booster1IgnitionDelay;
|
||||
private Double booster1SeparationDelay;
|
||||
private Boolean includeBooster1;
|
||||
private ThrustCurveMotor booster2Engine;
|
||||
private Double booster2SeparationDelay;
|
||||
private Boolean includeBooster2;
|
||||
|
||||
public SimulationHandler(DocumentLoadingContext context, Rocket rocket, SimulationOptions launchSiteSettings, int simulationNr) {
|
||||
this.context = context;
|
||||
this.rocket = rocket;
|
||||
this.launchSiteSettings = launchSiteSettings;
|
||||
this.simulationNr = simulationNr;
|
||||
}
|
||||
|
||||
@Override
|
||||
public ElementHandler openElement(String element, HashMap<String, String> attributes, WarningSet warnings) throws SAXException {
|
||||
if (RASAeroCommonConstants.SUSTAINER_ENGINE.equals(element) || RASAeroCommonConstants.SUSTAINER_IGNITION_DELAY.equals(element)
|
||||
|| RASAeroCommonConstants.BOOSTER1_ENGINE.equals(element) || RASAeroCommonConstants.BOOSTER1_IGNITION_DELAY.equals(element)
|
||||
|| RASAeroCommonConstants.BOOSTER1_SEPARATION_DELAY.equals(element) || RASAeroCommonConstants.INCLUDE_BOOSTER1.equals(element)
|
||||
|| RASAeroCommonConstants.BOOSTER2_ENGINE.equals(element) || RASAeroCommonConstants.BOOSTER2_SEPARATION_DELAY.equals(element)
|
||||
|| RASAeroCommonConstants.INCLUDE_BOOSTER2.equals(element)) {
|
||||
return PlainTextHandler.INSTANCE;
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void closeElement(String element, HashMap<String, String> attributes, String content, WarningSet warnings) throws SAXException {
|
||||
if (RASAeroCommonConstants.SUSTAINER_ENGINE.equals(element)) {
|
||||
sustainerEngine = RASAeroMotorsLoader.getMotorFromRASAero(content, warnings);
|
||||
} else if (RASAeroCommonConstants.SUSTAINER_IGNITION_DELAY.equals(element)) {
|
||||
sustainerIgnitionDelay = Double.parseDouble(content);
|
||||
} else if (RASAeroCommonConstants.BOOSTER1_ENGINE.equals(element)) {
|
||||
booster1Engine = RASAeroMotorsLoader.getMotorFromRASAero(content, warnings);
|
||||
} else if (RASAeroCommonConstants.BOOSTER1_IGNITION_DELAY.equals(element)) {
|
||||
booster1IgnitionDelay = Double.parseDouble(content);
|
||||
} else if (RASAeroCommonConstants.BOOSTER1_SEPARATION_DELAY.equals(element)) {
|
||||
booster1SeparationDelay = Double.parseDouble(content);
|
||||
} else if (RASAeroCommonConstants.INCLUDE_BOOSTER1.equals(element)) {
|
||||
includeBooster1 = Boolean.parseBoolean(content);
|
||||
} else if (RASAeroCommonConstants.BOOSTER2_ENGINE.equals(element)) {
|
||||
booster2Engine = RASAeroMotorsLoader.getMotorFromRASAero(content, warnings);
|
||||
} else if (RASAeroCommonConstants.BOOSTER2_SEPARATION_DELAY.equals(element)) {
|
||||
booster2SeparationDelay = Double.parseDouble(content);
|
||||
} else if (RASAeroCommonConstants.INCLUDE_BOOSTER2.equals(element)) {
|
||||
includeBooster2 = Boolean.parseBoolean(content);
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void endHandler(String element, HashMap<String, String> attributes, String content, WarningSet warnings) throws SAXException {
|
||||
FlightConfigurationId id = new FlightConfigurationId();
|
||||
rocket.createFlightConfiguration(id);
|
||||
// Select if this is the first config
|
||||
if (rocket.getSelectedConfiguration().getId().equals(FlightConfigurationId.DEFAULT_VALUE_FCID)) {
|
||||
rocket.setSelectedConfiguration(id);
|
||||
}
|
||||
|
||||
// Add motors to the rocket
|
||||
addMotorToStage(0, sustainerEngine, sustainerIgnitionDelay, id, warnings);
|
||||
if (includeBooster1) {
|
||||
addMotorToStage(1, booster1Engine, booster1IgnitionDelay, id, warnings);
|
||||
}
|
||||
if (includeBooster2) {
|
||||
addMotorToStage(2, booster2Engine, 0.0, id, warnings);
|
||||
}
|
||||
|
||||
// Set separation settings
|
||||
setSeparationDelay(0, 0.0, id);
|
||||
if (includeBooster1) {
|
||||
setSeparationDelay(1, booster1SeparationDelay, id);
|
||||
}
|
||||
if (includeBooster2) {
|
||||
setSeparationDelay(2, booster2SeparationDelay, id);
|
||||
}
|
||||
|
||||
// Add a new simulation
|
||||
Simulation sim = new Simulation(rocket);
|
||||
sim.setFlightConfigurationId(id);
|
||||
sim.setName("Simulation " + simulationNr);
|
||||
sim.copySimulationOptionsFrom(launchSiteSettings);
|
||||
context.getOpenRocketDocument().addSimulation(sim);
|
||||
}
|
||||
|
||||
private void addMotorToStage(final int stageNr, final Motor motor, final Double ignitionDelay,
|
||||
final FlightConfigurationId id, final WarningSet warnings) {
|
||||
if (motor == null || rocket.getStage(stageNr) == null) {
|
||||
return;
|
||||
}
|
||||
MotorMount mount = getMotorMountForStage(stageNr);
|
||||
if (mount == null) {
|
||||
warnings.add("No motor mount found for stage " + stageNr + ". Ignoring motor.");
|
||||
return;
|
||||
}
|
||||
MotorConfiguration motorConfig = new MotorConfiguration(mount, id);
|
||||
motorConfig.setMotor(motor);
|
||||
|
||||
// RASAero requires apogee deployment, so the sustainer motor should always be plugged
|
||||
if (stageNr == 0) {
|
||||
motorConfig.setEjectionDelay(Motor.PLUGGED_DELAY);
|
||||
}
|
||||
|
||||
|
||||
double delay = ignitionDelay != null ? ignitionDelay : 0.0;
|
||||
motorConfig.setIgnitionDelay(delay);
|
||||
if (stageNr < rocket.getStageCount() - 1) { // Use burnout non-last if multi-staged rocket
|
||||
motorConfig.setIgnitionEvent(IgnitionEvent.BURNOUT);
|
||||
} else {
|
||||
motorConfig.setIgnitionEvent(IgnitionEvent.AUTOMATIC);
|
||||
}
|
||||
mount.setMotorConfig(motorConfig, id);
|
||||
}
|
||||
|
||||
private void setSeparationDelay(final int stageNr, Double separationDelay,
|
||||
final FlightConfigurationId id) {
|
||||
if (rocket.getStage(stageNr) == null) {
|
||||
return;
|
||||
}
|
||||
StageSeparationConfiguration config = rocket.getStage(stageNr).getSeparationConfigurations().get(id);
|
||||
if (separationDelay != null) {
|
||||
config.setSeparationDelay(separationDelay);
|
||||
}
|
||||
config.setSeparationEvent(StageSeparationConfiguration.SeparationEvent.BURNOUT);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the furthest back motor mount in the stage.
|
||||
* @param stage stage number
|
||||
* @return furthest back motor mount of the stage
|
||||
*/
|
||||
private MotorMount getMotorMountForStage(int stage) {
|
||||
MotorMount mount = null;
|
||||
for (RocketComponent component : rocket.getStage(stage)) {
|
||||
if (component instanceof MotorMount) {
|
||||
mount = (MotorMount) component;
|
||||
}
|
||||
}
|
||||
if (mount != null) {
|
||||
mount.setMotorMount(true);
|
||||
}
|
||||
return mount;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user