major optimization updates

[debian/openrocket] / src / net / sf / openrocket / rocketcomponent / Parachute.java

diff --git a/src/net/sf/openrocket/rocketcomponent/Parachute.java b/src/net/sf/openrocket/rocketcomponent/Parachute.java
index 0ce768f9168b02e9e18b79d8c028965206824d1f..4403d25558aa2d6a4b420cae18fcecb8ea80a603 100644 (file)
--- a/src/net/sf/openrocket/rocketcomponent/Parachute.java
+++ b/src/net/sf/openrocket/rocketcomponent/Parachute.java
@@ -8,7 +8,7 @@ import net.sf.openrocket.util.Prefs;
 
 public class Parachute extends RecoveryDevice {
        private static final Translator trans = Application.getTranslator();
-
+       
        public static final double DEFAULT_CD = 0.8;
        
        private double diameter;
@@ -94,7 +94,7 @@ public class Parachute extends RecoveryDevice {
        public void setArea(double area) {
                if (MathUtil.equals(getArea(), area))
                        return;
-               diameter = Math.sqrt(area / Math.PI) * 2;
+               diameter = MathUtil.safeSqrt(area / Math.PI) * 2;
                fireComponentChangeEvent(ComponentChangeEvent.BOTH_CHANGE);
        }