controller : handle virtual axes specific property names

src/main/java/fr/ill/ics/n3d/link/Nomad3DController.java

@@ -146,7 +146,14 @@ public class Nomad3DController {
 	 * @return The actual position
 	 */
 	public double getActualPosition() {
-		return Double.parseDouble(getPropertyServerValue("actual_position"));
+		switch (this.getName()) {
+			case "DAN":
+				return Double.parseDouble(getPropertyServerValue("actual_angle"));
+			case "DH":
+				return Double.parseDouble(getPropertyServerValue("actual_height"));
+			default:
+				return Double.parseDouble(getPropertyServerValue("actual_position"));
+		}
 	}
 
 	/**
@@ -154,7 +161,14 @@ public class Nomad3DController {
 	 * @return The wanted position
 	 */
 	public double getWantedPosition() {
-		return Double.parseDouble(getPropertyServerValue("wanted_position"));
+		switch (this.getName()) {
+			case "DAN":
+				return Double.parseDouble(getPropertyServerValue("wanted_angle"));
+			case "DH":
+				return Double.parseDouble(getPropertyServerValue("wanted_height"));
+			default:
+				return Double.parseDouble(getPropertyServerValue("wanted_position"));
+		}
 	}
 
 	/**