Merge pull request #28 from open-dis/coordinate-tests

Coordinate tests

src/main/java/edu/nps/moves/disutil/CoordinateConversions.java

@@ -92,8 +92,8 @@ public static double[] xyzToLatLonDegrees(double[] xyz)
     {
         double degrees[] = CoordinateConversions.xyzToLatLonRadians(xyz);
 
-        degrees[0] = degrees[0] * 180.0 / Math.PI;
-        degrees[1] = degrees[1] * 180.0 / Math.PI;
+        degrees[0] = degrees[0] * CoordinateConversions.RADIANS_TO_DEGREES;
+        degrees[1] = degrees[1] * CoordinateConversions.RADIANS_TO_DEGREES;
 
         return degrees;
 

src/test/java/edu/nps/moves/disutil/CoordinateConversionsTest.java

@@ -0,0 +1,39 @@
+package edu.nps.moves.disutil;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class CoordinateConversionsTest {
+
+    final double DELTA = 0.1; // acceptable amount of error
+
+    double[] xyz = {1071401.9738714, -4450059.11156203, 4427050.83344532};
+    double[] latlonheightDegrees = {44.2368804, -76.4630307, 91};
+    double[] latlonheightRadians;
+
+    public CoordinateConversionsTest() {
+        latlonheightRadians = latlonheightDegrees.clone();
+        latlonheightRadians[0] *= CoordinateConversions.DEGREES_TO_RADIANS;
+        latlonheightRadians[1] *= CoordinateConversions.DEGREES_TO_RADIANS;
+    }
+
+    @Test
+    public void xyzToLatLonRadiansTest() {
+        Assert.assertArrayEquals(latlonheightRadians, CoordinateConversions.xyzToLatLonRadians(xyz), DELTA);
+    }
+
+    @Test
+    public void xyzToLatLonDegreesTest() {
+        Assert.assertArrayEquals(latlonheightDegrees, CoordinateConversions.xyzToLatLonDegrees(xyz), DELTA);
+    }
+
+    @Test
+    public void getXYZfromLatLonDegreesTest() {
+        Assert.assertArrayEquals(xyz, CoordinateConversions.getXYZfromLatLonDegrees(latlonheightDegrees[0], latlonheightDegrees[1], latlonheightDegrees[2]), DELTA);
+    }
+
+    @Test
+    public void getXYZfromLatLonRadiansTest() {
+        Assert.assertArrayEquals(xyz, CoordinateConversions.getXYZfromLatLonRadians(latlonheightRadians[0], latlonheightRadians[1], latlonheightRadians[2]), DELTA);
+    }
+}