Made the track serializable.

[utils] / gps / src / org / wamblee / gps / geometry / CoordinateSystem.java

diff --git a/gps/src/org/wamblee/gps/geometry/CoordinateSystem.java b/gps/src/org/wamblee/gps/geometry/CoordinateSystem.java
index 9094336bf0a2bce1dfd1757c1ddcd6d903c80ccc..98fee484ee63b741d5ce543ff593610bb85e950c 100644 (file)
--- a/gps/src/org/wamblee/gps/geometry/CoordinateSystem.java
+++ b/gps/src/org/wamblee/gps/geometry/CoordinateSystem.java
@@ -16,11 +16,13 @@
 
 package org.wamblee.gps.geometry;
 
+import java.io.Serializable;
+
 
 /**
  * Represents a coordinate system. 
  */
-public interface CoordinateSystem {
+public interface CoordinateSystem extends Serializable {
     
     /**
      * Conversion to a reference coordinate system.