From: kruland2607 <kruland2607@180e2498-e6e9-4542-8430-84ac67f01cd8>
Date: Sun, 8 Jan 2012 00:47:37 +0000 (+0000)
Subject: Added class with couple of helper methods to compute information about a rocket.... 
X-Git-Tag: upstream/12.03~1^2~193
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=64dd1081ccb5aa481ac7f3111e97cdd9562d4967;p=debian%2Fopenrocket

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

git-svn-id: https://openrocket.svn.sourceforge.net/svnroot/openrocket/trunk@277 180e2498-e6e9-4542-8430-84ac67f01cd8
---

diff --git a/src/net/sf/openrocket/rocketcomponent/RocketUtils.java b/src/net/sf/openrocket/rocketcomponent/RocketUtils.java
new file mode 100644
index 00000000..2e4b63b8
--- /dev/null
+++ b/src/net/sf/openrocket/rocketcomponent/RocketUtils.java
@@ -0,0 +1,34 @@
+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;
+	}
+	
+}