--- a/flys-artifacts/ChangeLog	Thu Feb 16 06:47:46 2012 +0000
+++ b/flys-artifacts/ChangeLog	Thu Feb 16 11:54:10 2012 +0000
@@ -1,3 +1,17 @@
+2012-02-16	Felix Wolfsteller	<felix.wolfsteller@intevation.de>
+
+	Fix flys/issue150 (exposure of gravitational anomalies)
+
+	* src/main/java/de/intevation/flys/artifacts/model/WKmsImpl.java,
+	  src/main/java/de/intevation/flys/artifacts/model/WKms.java:
+	  (guessWaterIncreasing): In analogy to W->WQ->WQKms defined and
+				  implemented.
+
+	* src/main/java/de/intevation/flys/exports/LongitudinalSectionGenerator.java:
+	  (needInvertAxis): Changed Parameter type to WKms (was WQKms).
+	  (doW): Use in this case weaker wkms cast to find out whether axis
+		 has to be inverted.
+
 2012-02-15  Ingo Weinzierl <ingo@intevation.de>
 
 	* src/main/java/de/intevation/flys/artifacts/model/HYKFactory.java: Fixed

--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/WKms.java	Thu Feb 16 06:47:46 2012 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/WKms.java	Thu Feb 16 11:54:10 2012 +0000
@@ -14,5 +14,9 @@
     TDoubleArrayList allKms();
 
     TDoubleArrayList allWs();
+
+    public boolean guessWaterIncreasing();
+
+    public boolean guessWaterIncreasing(float factor);
 }
 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :

--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/WKmsImpl.java	Thu Feb 16 06:47:46 2012 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/WKmsImpl.java	Thu Feb 16 11:54:10 2012 +0000
@@ -2,6 +2,9 @@
 
 import gnu.trove.TDoubleArrayList;
 
+import de.intevation.flys.utils.DataUtil;
+
+
 public class WKmsImpl
 extends      NamedObjectImpl
 implements   WKms
@@ -69,6 +72,15 @@
         return kms.getQuick(index);
     }
 
+    @Override
+    public boolean guessWaterIncreasing() {
+        return guessWaterIncreasing(0.05f);
+    }
+
+    @Override
+    public boolean guessWaterIncreasing(float factor) {
+        return DataUtil.guessWaterIncreasing(ws, factor);
+    }
 
     @Override
     public int size() {

--- a/flys-artifacts/src/main/java/de/intevation/flys/exports/LongitudinalSectionGenerator.java	Thu Feb 16 06:47:46 2012 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/exports/LongitudinalSectionGenerator.java	Thu Feb 16 11:54:10 2012 +0000
@@ -431,10 +431,8 @@
 
         addAxisSeries(series, YAXIS.W.idx, visible);
 
-        if (wkms instanceof WQKms) {
-            if (needInvertAxis((WQKms) wkms)) {
-                setInverted(true);
-            }
+        if (needInvertAxis(wkms)) {
+            setInverted(true);
         }
     }
 
@@ -504,7 +502,6 @@
         }
     }
 
-
     /**
      * This method determines - taking JFreeCharts auto x value ordering into
      * account - if the x axis need to be inverted. Waterlines in these charts
@@ -513,18 +510,18 @@
      * @param wqkms The data object that stores the x and y values used for this
      * chart.
      */
-    public boolean needInvertAxis(WQKms wqkms) {
-        boolean wsUp = wqkms.guessWaterIncreasing();
-        boolean kmUp = DataUtil.guessWaterIncreasing(wqkms.allKms());
+    public boolean needInvertAxis(WKms wkms) {
+        boolean wsUp = wkms.guessWaterIncreasing();
+        boolean kmUp = DataUtil.guessWaterIncreasing(wkms.allKms());
         boolean inv = (wsUp && kmUp) || (!wsUp && !kmUp);
 
-        int size = wqkms.size();
+        int size = wkms.size();
 
         if (logger.isDebugEnabled()) {
-            logger.debug("Values  : " + size);
+            logger.debug("(Wkms)Values  : " + size);
             if (size > 0) {
-                logger.debug("Start km: " + wqkms.getKm(0));
-                logger.debug("End   km: " + wqkms.getKm(size-1));
+                logger.debug("Start km: " + wkms.getKm(0));
+                logger.debug("End   km: " + wkms.getKm(size-1));
             }
             logger.debug("wsUp: " + wsUp);
             logger.debug("kmUp: " + kmUp);
@@ -566,6 +563,8 @@
 
     /**
      * Do Area out.
+     * @param theme styling information.
+     * @param visible whether or not visible.
      */
     protected void doArea(
         Object     o,
@@ -602,6 +601,8 @@
             }
         }
 
+        // TODO Depending on style, the area (e.g. 20m^2) should be added as annotation.
+
         if (data.getLowerData() != null) {
             // TODO: Sort this out: when the two series have the same name,
             // the renderer (or anything in between) will not work correctly.