--- a/flys-artifacts/src/main/java/de/intevation/flys/exports/StyledSeriesBuilder.java	Tue Jul 17 18:31:34 2012 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/exports/StyledSeriesBuilder.java	Tue Jul 17 18:40:25 2012 +0000
@@ -74,6 +74,13 @@
         }
     }
 
+
+    /**
+     * Add points to dataset with an offset (shift all points by given amount).
+     * @param series series to add data to.
+     * @param wkms WKms of which the Ws will be shifted.
+     * @param off the offset.
+     */
     public static void addUpperBand(XYSeries series, WKms wkms, double off) {
         if (wkms == null) {
             return;
@@ -86,10 +93,19 @@
         }
     }
 
+
+    /**
+     * Add points to dataset with an offset (shift all points 'down' by given
+     * amount).
+     * @param series series to add data to.
+     * @param wkms WKms of which the Ws will be shifted.
+     * @param off the offset.
+     */
     public static void addLowerBand(XYSeries series, WKms wkms, double off) {
         addUpperBand(series, wkms, -off);
     }
 
+
     /**
      * Add points to series (km to 1st dim, q to 2nd dim).
      *