Merge branch 'unstable' into fix-1728
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0cc805b185
@ -13,6 +13,8 @@ import net.sf.openrocket.util.Quaternion;
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public abstract class AbstractSimulationStepper implements SimulationStepper {
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protected static final double MIN_TIME_STEP = 0.001;
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/**
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* Compute the atmospheric conditions, allowing listeners to override.
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*
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@ -73,10 +73,12 @@ public class BasicLandingStepper extends AbstractSimulationStepper {
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double timeStep = RECOVERY_TIME_STEP;
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// adjust based on change in acceleration (ie jerk)
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final double jerk = linearAcceleration.sub(status.getRocketAcceleration()).multiply(1.0/status.getPreviousTimeStep()).length();
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final double jerk = Math.abs(linearAcceleration.sub(status.getRocketAcceleration()).multiply(1.0/status.getPreviousTimeStep()).length());
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if (jerk > MathUtil.EPSILON) {
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timeStep = Math.min(timeStep, 1.0/jerk);
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}
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// but don't let it get *too* small
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timeStep = Math.max(timeStep, MIN_TIME_STEP);
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// Perform Euler integration
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Coordinate newPosition = status.getRocketPosition().add(status.getRocketVelocity().multiply(timeStep)).
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@ -58,9 +58,6 @@ public class RK4SimulationStepper extends AbstractSimulationStepper {
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private static final double MAX_ROLL_RATE_CHANGE = 2 * Math.PI / 180;
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private static final double MAX_PITCH_CHANGE = 4 * Math.PI / 180;
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private static final double MIN_TIME_STEP = 0.001;
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private Random random;
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