X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=altoslib%2FAltosQuaternion.java;h=98c2fe51322851e5b7fb1e5b95723fc173f4655e;hb=8df6afe843e184e98e5d965cee3af562dfa30a3b;hp=351685f8c578708243f0f038962f1bb5177a5b3a;hpb=97adfff4cfb67c17a96f3ff46606b4e439422b01;p=fw%2Faltos

diff --git a/altoslib/AltosQuaternion.java b/altoslib/AltosQuaternion.java
index 351685f8..98c2fe51 100644
--- a/altoslib/AltosQuaternion.java
+++ b/altoslib/AltosQuaternion.java
@@ -17,7 +17,7 @@
 
 package org.altusmetrum.altoslib_11;
 
-public class AltosQuaternion {
+public class AltosQuaternion implements AltosJsonable {
 	double	r;		/* real bit */
 	double	x, y, z;	/* imaginary bits */
 
@@ -115,10 +115,17 @@ public class AltosQuaternion {
 	}
 
 	public AltosQuaternion(AltosQuaternion q) {
-		this.r = q.r;
-		this.x = q.x;
-		this.y = q.y;
-		this.z = q.z;
+		r = q.r;
+		x = q.x;
+		y = q.y;
+		z = q.z;
+	}
+
+	public AltosQuaternion() {
+		r = 1;
+		x = 0;
+		y = 0;
+		z = 0;
 	}
 
 	static public AltosQuaternion vector(double x, double y, double z) {
@@ -147,4 +154,24 @@ public class AltosQuaternion {
 					   c_x * s_y * c_z + s_x * c_y * s_z,
 					   c_x * c_y * s_z - s_x * s_y * c_z);
 	}
+
+	public AltosJson json() {
+		AltosJson j = new AltosJson();
+
+		j.put("r", r);
+		j.put("x", x);
+		j.put("y", y);
+		j.put("z", z);
+		return j;
+	}
+
+	public AltosQuaternion(AltosJson j) {
+		if (j == null)
+			return;
+
+		r = j.get_double("r", 1);
+		x = j.get_double("x", 0);
+	        y = j.get_double("y", 0);
+		z = j.get_double("z", 0);
+	}
 }