altoslib: Add null constructors to AltosQuaternion and AltosRotation

[fw/altos] / altoslib / AltosRotation.java

diff --git a/altoslib/AltosRotation.java b/altoslib/AltosRotation.java
index 321a0f304d53d11d49950f2b82db3d277007ad24..6db0b541595ce37f51acd0f78c413abd07b72c38 100644 (file)
--- a/altoslib/AltosRotation.java
+++ b/altoslib/AltosRotation.java
@@ -48,14 +48,18 @@ public class AltosRotation implements AltosJsonable {
                rotation = up.vectors_to_rotation(orient);
        }
 
-       public AltosJson json() {
-               return rotation.json();
-       }
-
        public AltosRotation(AltosJson j) {
                rotation = new AltosQuaternion(j);
        }
 
+       public AltosRotation() {
+               rotation = new AltosQuaternion();
+       }
+
+       public AltosJson json() {
+               return rotation.json();
+       }
+
        public static AltosRotation fromJson(AltosJson j, AltosRotation def) {
                if (j == null)
                        return def;