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Update recovery device placement rules

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This commit is contained in:
SiboVG 2023-03-20 13:27:31 +01:00
parent 2dc4a0fd39
commit 6c02ad0b91
1 changed files with 58 additions and 24 deletions
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82
core/src/net/sf/openrocket/file/rasaero/importt/RecoveryHandler.java
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@ -188,8 +188,14 @@ public class RecoveryHandler extends AbstractElementHandler {
/**
* 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:
* put recovery device 1 in the first sustainer body tube just below the nosecone (about 1.125 calibers below
* the top of the body tube).
* 1. If the sustainer consists of two body tubes then Recovery Device 2 (deployment as set altitude) is positioned
* near the top (about 1.125 calibers) of the upper body tube with Recovery Device 1 (deployment at apogee)
* positioned near the top (about 1.125 calibers) of the second body tube down.
* 2. If the sustainer consists of three or more body tubes then Recovery Device 2 (deployment as set altitude) is
* positioned near the top (about 1.125 calibers) of the upper body tube with Recovery Device 1 (deployment at apogee)
* positioned near the top (about 1.125 calibers) of the third body tube down.
* 3. In all other cases: put recovery device 1 in the first sustainer body tube just below the nosecone
* (about 1.125 calibers below the top of the body tube).
* @param recoveryDevice the recovery device to add
* @param warnings the warning set to add import warnings to
*/
@ -199,11 +205,39 @@ public class RecoveryHandler extends AbstractElementHandler {
warnings.add("No sustainer body tube found." + recoveryDevice.getName() + " will not be added to the rocket.");
return;
}
BodyTube bodyTube = (BodyTube) sustainer.getChild(1);
bodyTube.addChild(recoveryDevice);
final BodyTube parentBodyTube;
// If there is a recovery device 2, then we will use special rules
if (event[1] && !"None".equals(eventType[1])) {
List<BodyTube> bodyTubes = getBodyTubesInStage(sustainer);
int nrOfTubes = bodyTubes.size();
// Rule 1: Two body tubes => add to second tube
if (nrOfTubes == 2) {
parentBodyTube = bodyTubes.get(1);
parentBodyTube.addChild(recoveryDevice);
}
// Rule 2: Three or more body tubes => add to third tube
else if (nrOfTubes >= 3) {
parentBodyTube = bodyTubes.get(2);
parentBodyTube.addChild(recoveryDevice);
}
// Rule 3: Less than two body tubes => add to first tube
else {
parentBodyTube = (BodyTube) sustainer.getChild(1);
parentBodyTube.addChild(recoveryDevice);
}
}
// Rule 3: Add to the first tube
else {
parentBodyTube = (BodyTube) sustainer.getChild(1);
parentBodyTube.addChild(recoveryDevice);
}
recoveryDevice.setAxialMethod(AxialMethod.TOP);
double offset = bodyTube.getOuterRadius() * 1.125;
if (offset + recoveryDevice.getLength() > bodyTube.getLength()) {
double offset = parentBodyTube.getOuterRadius() * 1.125;
if (offset + recoveryDevice.getLength() > parentBodyTube.getLength()) {
offset = 0;
}
recoveryDevice.setAxialOffset(offset);
@ -215,9 +249,9 @@ public class RecoveryHandler extends AbstractElementHandler {
* 1. If the airframe has only 1 body tube:
* put recovery device 2 in the first body tube just below recovery device 1.
* 2. If the airframe has two body tubes:
* put recovery device 2 in the second body tube (about 1.125 calibers below the top of the second body tube).
* put recovery device 2 in the first body tube (about 1.125 calibers below the top of the first body tube).
* 3. If the airframe has three or more body tubes:
* put recovery device 2 in the third body tube (about 1.125 calibers below the top of the third body tube).
* put recovery device 2 in the first body tube (about 1.125 calibers below the top of the first body tube).
* @param recoveryDevice the recovery device to add
* @param warnings the warning set to add import warnings to
*/
@ -226,33 +260,21 @@ public class RecoveryHandler extends AbstractElementHandler {
double offset;
AxialStage sustainer = rocket.getStage(0);
// Get all body tubes
List<BodyTube> bodyTubes = new ArrayList<>();
for (int i = 0; i < sustainer.getChildCount(); i++) {
if (sustainer.getChild(i) instanceof BodyTube) {
bodyTubes.add((BodyTube) sustainer.getChild(i));
}
}
List<BodyTube> bodyTubes = getBodyTubesInStage(sustainer);
switch (bodyTubes.size()) {
case 0:
warnings.add("No sustainer body tube found." + recoveryDevice.getName() + " will not be added to the rocket.");
return;
case 1:
// If there is only one body tube, add the recovery device to the first body tube, after recovery device 1
// Rule 1: If there is only one body tube, add the recovery device to the first body tube, after recovery device 1
bodyTube = bodyTubes.get(0);
offset = bodyTube.getOuterRadius() * 1.125;
offset += recoveryDevice.getLength() * 1.05; // = equivalent to adding after recovery device 1
break;
case 2:
// If there are two body tubes, add the recovery device to the second body tube
bodyTube = bodyTubes.get(1);
offset = bodyTube.getOuterRadius() * 1.125;
break;
default:
// If there are three or more body tubes, add the recovery device to the third body tube
bodyTube = bodyTubes.get(2);
// Rule 2 & 3: If there are two, three or more body tubes, add the recovery device to the first body tube
bodyTube = bodyTubes.get(0);
offset = bodyTube.getOuterRadius() * 1.125;
break;
}
@ -265,4 +287,16 @@ public class RecoveryHandler extends AbstractElementHandler {
}
recoveryDevice.setAxialOffset(offset);
}
private List<BodyTube> getBodyTubesInStage(AxialStage stage) {
// Get all body tubes
List<BodyTube> bodyTubes = new ArrayList<>();
for (int i = 0; i < stage.getChildCount(); i++) {
if (stage.getChild(i) instanceof BodyTube) {
bodyTubes.add((BodyTube) stage.getChild(i));
}
}
return bodyTubes;
}
}