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[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
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+++ b/gps/src/org/wamblee/gps/geometry/CoordinateSystem.java
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+/*
+ * Copyright 2006 the original author or authors.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */ 
+
+package org.wamblee.gps.geometry;
+
+
+/**
+ * Represents a coordinate system. 
+ */
+public interface CoordinateSystem {
+    
+    /**
+     * Conversion to a reference coordinate system.
+     * @param aCoordinates Coordinates. 
+     * @return Coordinates in the reference system. 
+     */
+    Coordinates toReferenceSystem(Coordinates aCoordinates);
+}