Added parseAngle method to AngleUtils class

TULIP/src/lu/list/itis/dkd/tui/utility/AngleUnit.java

+package lu.list.itis.dkd.tui.utility;
+
+// ***************************************************************************
+// * Enum Definition and Members *
+// ***************************************************************************
+
+public enum AngleUnit {
+    DEG(1), RAD((2 * Math.PI) / 360);
+
+    public final double factor;
+
+    // ***************************************************************************
+    // * Constants *
+    // ***************************************************************************
+
+    // ---------------------------------------------------------------------------
+    // ***************************************************************************
+    // * Constructor(s)
+    // ***************************************************************************
+    // ---------------------------------------------------------------------------
+
+    private AngleUnit(double factor) {
+        this.factor = factor;
+    }
+
+    // ---------------------------------------------------------------------------
+    // ***************************************************************************
+    // * Class Body
+    // ***************************************************************************
+    // ---------------------------------------------------------------------------
+
+    public double convertTo(double value, AngleUnit target) {
+        double normalized = value / this.factor;
+        return value * target.factor;
+    }
+
+}
\ No newline at end of file

TULIP/src/lu/list/itis/dkd/tui/utility/AngleUtils.java

@@ -16,6 +16,11 @@
  */
 package lu.list.itis.dkd.tui.utility;
 
+import java.util.HashMap;
+import java.util.Map;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
 /**
  * @author mack
  * @since [major].[minor]
@@ -37,6 +42,15 @@ public class AngleUtils {
     public static final double ONE_EIGHTY = 180d;
     public static final double NINETY = 90d;
 
+    private static final Pattern ANGLE_PATTERN = Pattern.compile("([+-]?\\d+\\.?\\d*)\\s*(rad|deg)?", Pattern.CASE_INSENSITIVE); //$NON-NLS-1$
+
+    private static Map<String, AngleUnit> LOOKUP_TABLE = new HashMap<>();
+
+    static {
+        LOOKUP_TABLE.put("rad", AngleUnit.RAD);
+        LOOKUP_TABLE.put("deg", AngleUnit.DEG);
+    }
+
     // ---------------------------------------------------------------------------
     // ***************************************************************************
     // * Constructor(s)
@@ -143,4 +157,23 @@ public class AngleUtils {
         return quadrant;
     }
 
+    // ---------------------------------------------------------------------------
+    /**
+     * @param angleWithUnit
+     * @param targetUnit
+     * @return
+     */
+    // ---------------------------------------------------------------------------
+
+    public static double parseAngle(String angleWithUnit, AngleUnit targetUnit) {
+        double value = Double.NaN;
+        Matcher areaMatcher = ANGLE_PATTERN.matcher(angleWithUnit);
+        if (areaMatcher.matches()) {
+            value = Double.parseDouble(areaMatcher.group(1));
+            AngleUnit angleUnit = LOOKUP_TABLE.get(areaMatcher.group(2));
+            value = angleUnit.convertTo(value, targetUnit);
+        }
+        return value;
+    }
+
 }