degrees centroid

Author: bosborn

src/main/java/mil/nga/sf/Geometry.java

@@ -164,6 +164,19 @@ public Point getCentroid() {
 		return GeometryUtils.getCentroid(this);
 	}
 
+	/**
+	 * Get the geographic centroid point of a 2 dimensional representation of
+	 * the degree unit Geometry. Only the x and y coordinate of the resulting
+	 * point are calculated and populated. The resulting {@link Point#getZ()}
+	 * and {@link Point#getM()} methods will always return null.
+	 * 
+	 * @return centroid point
+	 * @since 2.0.5
+	 */
+	public Point getDegreesCentroid() {
+		return GeometryUtils.getDegreesCentroid(this);
+	}
+
 	/**
 	 * Copy the geometry
 	 * 

src/main/java/mil/nga/sf/util/GeometryUtils.java

@@ -155,7 +155,10 @@ public static Point getCentroid(Geometry geometry) {
 	}
 
 	/**
-	 * Get the centroid point of a Geometry in degrees
+	 * Get the geographic centroid point of a 2 dimensional representation of
+	 * the degree unit Geometry. Only the x and y coordinate of the resulting
+	 * point are calculated and populated. The resulting {@link Point#getZ()}
+	 * and {@link Point#getM()} methods will always return null.
 	 * 
 	 * @param geometry
 	 *            geometry object

src/test/java/mil/nga/sf/GeometryUtilsTest.java

@@ -627,12 +627,12 @@ public void testCentroid() {
 
 		Point point = new Point(15, 35);
 
-		Point centroid = GeometryUtils.getCentroid(point);
+		Point centroid = point.getCentroid();
 
 		TestCase.assertEquals(15.0, centroid.getX());
 		TestCase.assertEquals(35.0, centroid.getY());
 
-		Point degreesCentroid = GeometryUtils.getDegreesCentroid(point);
+		Point degreesCentroid = point.getDegreesCentroid();
 
 		TestCase.assertEquals(15.0, degreesCentroid.getX());
 		TestCase.assertEquals(35.0, degreesCentroid.getY());
@@ -641,49 +641,49 @@ public void testCentroid() {
 		lineString.addPoint(new Point(0, 5));
 		lineString.addPoint(point);
 
-		centroid = GeometryUtils.getCentroid(lineString);
+		centroid = lineString.getCentroid();
 
 		TestCase.assertEquals(7.5, centroid.getX());
 		TestCase.assertEquals(20.0, centroid.getY());
 
-		degreesCentroid = GeometryUtils.getDegreesCentroid(lineString);
+		degreesCentroid = lineString.getDegreesCentroid();
 
 		TestCase.assertEquals(6.764392425440724, degreesCentroid.getX());
 		TestCase.assertEquals(20.157209770845522, degreesCentroid.getY());
 
 		lineString.addPoint(new Point(2, 65));
 
-		centroid = GeometryUtils.getCentroid(lineString);
+		centroid = lineString.getCentroid();
 
 		TestCase.assertEquals(7.993617921179541, centroid.getX());
 		TestCase.assertEquals(34.808537635386266, centroid.getY());
 
-		degreesCentroid = GeometryUtils.getDegreesCentroid(lineString);
+		degreesCentroid = lineString.getDegreesCentroid();
 
 		TestCase.assertEquals(5.85897989020252, degreesCentroid.getX());
 		TestCase.assertEquals(35.20025371999032, degreesCentroid.getY());
 
 		Polygon polygon = new Polygon(lineString);
 
-		centroid = GeometryUtils.getCentroid(polygon);
+		centroid = polygon.getCentroid();
 
 		TestCase.assertEquals(5.666666666666667, centroid.getX());
 		TestCase.assertEquals(35.0, centroid.getY());
 
-		degreesCentroid = GeometryUtils.getDegreesCentroid(polygon);
+		degreesCentroid = polygon.getDegreesCentroid();
 
 		TestCase.assertEquals(5.85897989020252, degreesCentroid.getX());
 		TestCase.assertEquals(35.20025371999032, degreesCentroid.getY());
 
 		lineString.addPoint(new Point(-20, 40));
 		lineString.addPoint(new Point(0, 5));
 
-		centroid = GeometryUtils.getCentroid(polygon);
+		centroid = polygon.getCentroid();
 
 		TestCase.assertEquals(-1.3554502369668247, centroid.getX());
 		TestCase.assertEquals(36.00315955766193, centroid.getY());
 
-		degreesCentroid = GeometryUtils.getDegreesCentroid(polygon);
+		degreesCentroid = polygon.getDegreesCentroid();
 
 		TestCase.assertEquals(-0.6891904581641471, degreesCentroid.getX());
 		TestCase.assertEquals(37.02524099014426, degreesCentroid.getY());