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Refine parachute creation

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This commit is contained in:
SiboVG 2023-02-13 01:55:31 +00:00
parent ad396701b8
commit 23cca5a921
1 changed files with 39 additions and 15 deletions
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54
core/src/net/sf/openrocket/file/rasaero/importt/RecoveryHandler.java
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@ -8,11 +8,9 @@ import net.sf.openrocket.file.simplesax.PlainTextHandler;
import net.sf.openrocket.rocketcomponent.AxialStage;
import net.sf.openrocket.rocketcomponent.BodyTube;
import net.sf.openrocket.rocketcomponent.DeploymentConfiguration;
import net.sf.openrocket.rocketcomponent.NoseCone;
import net.sf.openrocket.rocketcomponent.Parachute;
import net.sf.openrocket.rocketcomponent.RecoveryDevice;
import net.sf.openrocket.rocketcomponent.Rocket;
import net.sf.openrocket.rocketcomponent.RocketComponent;
import net.sf.openrocket.rocketcomponent.position.AxialMethod;
import org.xml.sax.SAXException;
@ -106,29 +104,28 @@ public class RecoveryHandler extends AbstractElementHandler {
}
}
private void addRecoveryDevice(int recoveryDeviceNr, WarningSet warnings) {
if (recoveryDeviceNr > NR_OF_RECOVERY_DEVICES-1) {
throw new IllegalArgumentException("Invalid recovery device number " + recoveryDeviceNr);
/**
* Create a new recovery device with the parameters from RASAero, and add it to the rocket.
* @param deviceNr Recovery device number (0 or 1)
* @param warnings Warning set to add import warnings to
*/
private void addRecoveryDevice(int deviceNr, WarningSet warnings) {
if (deviceNr > NR_OF_RECOVERY_DEVICES-1) {
throw new IllegalArgumentException("Invalid recovery device number " + deviceNr);
}
// Only parachute is supported by RASAero
if (!deviceType[recoveryDeviceNr].equals("Parachute")) {
if (!deviceType[deviceNr].equals("Parachute")) {
return;
}
// Create the recovery device with the parameters from RASAero
Parachute recoveryDevice = new Parachute();
recoveryDevice.setName("Recovery Event " + (recoveryDeviceNr+1));
DeploymentConfiguration config = recoveryDevice.getDeploymentConfigurations().getDefault();
recoveryDevice.setDiameter(size[recoveryDeviceNr] / RASAeroCommonConstants.RASAERO_TO_OPENROCKET_LENGTH);
recoveryDevice.setCD(CD[recoveryDeviceNr]);
config.setDeployAltitude(altitude[recoveryDeviceNr] / RASAeroCommonConstants.RASAERO_TO_OPENROCKET_ALTITUDE);
config.setDeployEvent(RASAeroCommonConstants.getDeployEventFromRASAero(eventType[recoveryDeviceNr], warnings));
Parachute recoveryDevice = createParachute(deviceNr, size[deviceNr], CD[deviceNr], altitude[deviceNr], eventType[deviceNr], warnings);
// Add the recovery device to the rocket
if (recoveryDeviceNr == 0) {
if (deviceNr == 0) {
addRecoveryDevice1ToRocket(recoveryDevice, warnings);
} else if (recoveryDeviceNr == 1) {
} else if (deviceNr == 1) {
// If there is no recovery device 1, add recovery device 2 to the rocket as if you would add recovery device 1
if (!event[0]) {
addRecoveryDevice1ToRocket(recoveryDevice, warnings);
@ -140,6 +137,33 @@ public class RecoveryHandler extends AbstractElementHandler {
}
}
/**
* Create a parachute with the parameters from RASAero.
* @param recoveryDeviceNr The recovery device number (0 or 1)
* @param size The size of the parachute
* @param CD The drag coefficient of the parachute
* @param altitude The altitude of the parachute deployment
* @param eventType The event type of the parachute deployment
* @param warnings The warning set to add import warnings to
* @return The parachute with the parameters from RASAero
*/
private Parachute createParachute(int recoveryDeviceNr, double size, double CD, double altitude, String eventType, WarningSet warnings) {
Parachute recoveryDevice = new Parachute();
recoveryDevice.setName("Recovery Event " + (recoveryDeviceNr+1));
DeploymentConfiguration config = recoveryDevice.getDeploymentConfigurations().getDefault();
recoveryDevice.setDiameter(size / RASAeroCommonConstants.RASAERO_TO_OPENROCKET_LENGTH);
recoveryDevice.setLineLength(recoveryDevice.getDiameter());
recoveryDevice.setCD(CD);
config.setDeployAltitude(altitude / RASAeroCommonConstants.RASAERO_TO_OPENROCKET_ALTITUDE);
config.setDeployEvent(RASAeroCommonConstants.getDeployEventFromRASAero(eventType, warnings));
// Shroud line count = diameter / 6 inches. 6 inches = 0.1524 meters. Minimum is 6 lines.
recoveryDevice.setLineCount(Math.max(6, (int) Math.round(recoveryDevice.getDiameter() / 0.1524)));
return recoveryDevice;
}
/**
* RASAero does not specify where recovery devices are located.
* We will use the following (arbitrary, but logical) rule to add the recovery device to the rocket: