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Added class with couple of helper methods to compute information about a rocket. Includes getCG and getLength.

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Kevin Ruland 2012-01-08 00:47:37 +00:00
parent edcaa5d2c9
commit 195ad4933b
1 changed files with 34 additions and 0 deletions
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src/net/sf/openrocket/rocketcomponent/RocketUtils.java Normal file
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package net.sf.openrocket.rocketcomponent;
import java.util.Collection;
import net.sf.openrocket.masscalc.BasicMassCalculator;
import net.sf.openrocket.masscalc.MassCalculator;
import net.sf.openrocket.masscalc.MassCalculator.MassCalcType;
import net.sf.openrocket.util.Coordinate;
public abstract class RocketUtils {
public static double getLength(Rocket rocket) {
double length = 0;
Collection<Coordinate> bounds = rocket.getDefaultConfiguration().getBounds();
if (!bounds.isEmpty()) {
double minX = Double.POSITIVE_INFINITY, maxX = Double.NEGATIVE_INFINITY;
for (Coordinate c : bounds) {
if (c.x < minX)
minX = c.x;
if (c.x > maxX)
maxX = c.x;
}
length = maxX - minX;
}
return length;
}
public static Coordinate getCG(Rocket rocket) {
MassCalculator massCalculator = new BasicMassCalculator();
Coordinate cg = massCalculator.getCG(rocket.getDefaultConfiguration(), MassCalcType.LAUNCH_MASS);
return cg;
}
}