Added euclidianDistance method to PolarCoordinateHelper.

Added LayerColourScale node to Templating. This should be properly
refactored into the Tulip-GIS extension

TULIP/config/templating.properties

 NUMBER_OF_LAYERS_PROPERTY=NumberOfLayers
 LAYER_NAME_PROPERTY=LayerName
+LAYER_COLOUR_SCALE_PROPERTY=LayerColourScale
 HANDLE_ID_PROPERTY=HandleId
 LAYER_ID_PROPERTY=LayerId
 PERSISTENT_PROPERTY=Persistent

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

@@ -53,6 +53,17 @@ public class PolarCoordinateHelper {
     // ***************************************************************************
     // * Class Body *
     // ***************************************************************************
+
+    /**
+     * @param deltaX
+     * @param deltaY
+     * @return
+     */
+    public static final double euclideanDistance(double deltaX, double deltaY) {
+        return Math.sqrt((deltaX * deltaX) + (deltaY * deltaY));
+    }
+
+
     // ---------------------------------------------------------------------------
     /**
      * @param pole
@@ -62,7 +73,7 @@ public class PolarCoordinateHelper {
     public static final double getRadius(Point pole, Point coordinate) {
         double lengthX = coordinate.x - pole.x;
         double lengthY = coordinate.y - pole.y;
-        double radius = Math.sqrt(lengthX * lengthX + lengthY * lengthY);
+        double radius = euclideanDistance(lengthX, lengthY);
 
         return radius;
     }
@@ -78,7 +89,7 @@ public class PolarCoordinateHelper {
     public static final double getEllipticRadius(double angle, double width, double height) {
         double lengthX = width * Math.cos(angle);
         double lengthY = height * Math.sin(angle);
-        double radius = Math.sqrt(lengthX * lengthX + lengthY * lengthY);
+        double radius = euclideanDistance(lengthX, lengthY);
 
         return radius;
     }
@@ -108,7 +119,7 @@ public class PolarCoordinateHelper {
     public static final Point rotate(Point origin, double angle) {
         double x = origin.x;
         double y = origin.y;
-        float distance = (float) Math.sqrt((x * x) + (y * y));
+        float distance = (float) euclideanDistance(x, y);
 
         double rotatedX = distance * Math.cos(angle);
         double rotatedY = distance * Math.sin(angle);
@@ -132,7 +143,7 @@ public class PolarCoordinateHelper {
     public static final Point carthesianToPolar(Point carthesian) {
         double x = carthesian.x;
         double y = carthesian.y;
-        float distance = (float) Math.sqrt((x * x) + (y * y));
+        float distance = (float) euclideanDistance(x, y);
         float angle = (float) Math.atan2(y, x);
         if (angle < 0)
             angle += TWO_PI;
@@ -161,7 +172,7 @@ public class PolarCoordinateHelper {
 
         double x = clone.x - origin.x;
         double y = clone.y - origin.y;
-        float distance = (float) Math.sqrt((x * x) + (y * y));
+        float distance = (float) euclideanDistance(x, y);
         float angle = (float) Math.atan2(y, x);
         if (angle < 0)
             angle += TWO_PI;

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

@@ -10,6 +10,7 @@ public class Templating extends NLS {
 
     public static String NUMBER_OF_LAYERS_PROPERTY;
     public static String LAYER_NAME_PROPERTY;
+    public static String LAYER_COLOUR_SCALE_PROPERTY;
     public static String LAYER_ID_PROPERTY;
     public static String PERSISTENT_PROPERTY;
     public static String PRESELECT_ID_PROPERTY;