--- a/flys-artifacts/ChangeLog	Fri Jan 27 14:21:51 2012 +0000
+++ b/flys-artifacts/ChangeLog	Fri Jan 27 15:43:04 2012 +0000
@@ -1,3 +1,14 @@
+2012-01-27	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/artifacts/WINFOArtifact.java:
+	  Call the 'Bezugslinienverfahren'.
+	
+	* src/main/resources/messages.properties,
+	  src/main/resources/messages_de_DE.properties,
+	  src/main/resources/messages_en.properties,
+	  src/main/resources/messages_de.properties:
+	  I18N for the 'Bezugslinienverfahren' error messages.
+
 2012-01-27  Felix Wolfsteller	<felix.wolfsteller@intevation.de>
 
 	* doc/conf/themes.xml: Better theme for manual points.

--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/WINFOArtifact.java	Fri Jan 27 14:21:51 2012 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/WINFOArtifact.java	Fri Jan 27 15:43:04 2012 +0000
@@ -1,7 +1,5 @@
 package de.intevation.flys.artifacts;
 
-import java.awt.geom.Point2D;
-
 import de.intevation.artifactdatabase.ProtocolUtils;
 
 import de.intevation.artifactdatabase.data.StateData;
@@ -18,8 +16,9 @@
 
 import de.intevation.artifacts.common.ArtifactNamespaceContext;
 
+import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator;
+
 import de.intevation.artifacts.common.utils.XMLUtils;
-import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator;
 
 import de.intevation.flys.artifacts.context.FLYSContext;
 
@@ -27,23 +26,25 @@
 import de.intevation.flys.artifacts.model.Calculation2;
 import de.intevation.flys.artifacts.model.Calculation3;
 import de.intevation.flys.artifacts.model.Calculation4;
+import de.intevation.flys.artifacts.model.Calculation5;
 import de.intevation.flys.artifacts.model.Calculation;
+import de.intevation.flys.artifacts.model.CalculationMessage;
 import de.intevation.flys.artifacts.model.CalculationResult;
 import de.intevation.flys.artifacts.model.DischargeTables;
 import de.intevation.flys.artifacts.model.FacetTypes;
 import de.intevation.flys.artifacts.model.MainValuesFactory;
 import de.intevation.flys.artifacts.model.Segment;
 import de.intevation.flys.artifacts.model.WQKms;
+import de.intevation.flys.artifacts.model.WW;
 import de.intevation.flys.artifacts.model.WstValueTable;
 import de.intevation.flys.artifacts.model.WstValueTableFactory;
 
-import de.intevation.flys.model.FastCrossSectionLine;
-
 import de.intevation.flys.artifacts.states.DefaultState;
 import de.intevation.flys.artifacts.states.LocationDistanceSelect;
 
 import de.intevation.flys.geom.Lines;
 
+import de.intevation.flys.model.FastCrossSectionLine;
 import de.intevation.flys.model.Gauge;
 import de.intevation.flys.model.River;
 
@@ -52,6 +53,8 @@
 
 import gnu.trove.TDoubleArrayList;
 
+import java.awt.geom.Point2D;
+
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
@@ -65,8 +68,6 @@
 import org.w3c.dom.Element;
 import org.w3c.dom.Node;
 
-import de.intevation.flys.artifacts.model.CalculationMessage;
-
 /**
  * The default WINFO artifact.
  *
@@ -645,6 +646,94 @@
         return calc4.calculate(table, range[0], range[1], range[2]);
     }
 
+    /**
+     * Returns the data that is computed by a reference curve computation.
+     *
+     * @return the data computed by a reference curve computation.
+     */
+    public CalculationResult getReferenceCurveData() {
+
+        Double startKm = getReferenceStartKm();
+
+        if (startKm == null) {
+            return error(new WW[0], "no.reference.start.km");
+        }
+
+        double [] endKms = getReferenceEndKms();
+
+        if (endKms == null || endKms.length == 0) {
+            return error(new WW[0], "no.reference.end.kms");
+        }
+
+        Calculation5 calc5 = new Calculation5(startKm, endKms);
+
+        River r = FLYSUtils.getRiver(this);
+        if (r == null) {
+            return error(new WW[0], "no.river.found");
+        }
+
+        WstValueTable wst = WstValueTableFactory.getTable(r);
+        if (wst == null) {
+            return error(new WW[0], "no.wst.for.river");
+        }
+
+        return calc5.calculate(wst);
+    }
+
+    protected Double getReferenceStartKm() {
+        StateData sd = getData("reference_start");
+
+        if (sd == null) {
+            logger.warn("no reference start given.");
+            return null;
+        }
+
+        String input = (String)sd.getValue();
+
+        if (input == null | (input = input.trim()).length() == 0) {
+            logger.warn("reference start string is empty.");
+            return null;
+        }
+
+        try {
+            return Double.valueOf(input);
+        }
+        catch (NumberFormatException nfe) {
+            logger.warn("reference start string is not numeric.");
+        }
+
+        return null;
+    }
+
+    protected double [] getReferenceEndKms() {
+
+        StateData sd = getData("reference_end");
+
+        if (sd == null) {
+            logger.warn("no reference end given.");
+            return null;
+        }
+
+        String input = (String)sd.getValue();
+
+        if (input == null | (input = input.trim()).length() == 0) {
+            logger.warn("reference end string is empty.");
+            return null;
+        }
+
+        TDoubleArrayList endKms = new TDoubleArrayList();
+
+        for (String part: input.split("\\s+")) {
+            try {
+                endKms.add(Double.parseDouble(part));
+            }
+            catch (NumberFormatException nfe) {
+                logger.warn("reference end string is not numeric.");
+            }
+        }
+
+        return endKms.toNativeArray();
+    }
 
     public List<Segment> getSegments() {
         StateData wqValues = getData("wq_values");

--- a/flys-artifacts/src/main/resources/messages.properties	Fri Jan 27 14:21:51 2012 +0000
+++ b/flys-artifacts/src/main/resources/messages.properties	Fri Jan 27 15:43:04 2012 +0000
@@ -173,3 +173,6 @@
 no.values.given = No values given.
 cannot.interpolate.wq = Cannot interpolate W/Q.
 manualpoints = Manual Points
+
+no.reference.start.km = No reference start station given.
+no.reference.end.kms = No reference end station(s) given.

--- a/flys-artifacts/src/main/resources/messages_de.properties	Fri Jan 27 14:21:51 2012 +0000
+++ b/flys-artifacts/src/main/resources/messages_de.properties	Fri Jan 27 15:43:04 2012 +0000
@@ -174,3 +174,6 @@
 cannot.interpolate.wq = W/Q-Wert konnte nicht interpoliert werden.
 
 manualpoints = Manuelle Punkte
+
+no.reference.start.km = Keine Startkilometerstation angegeben.
+no.reference.end.kms = Keine Endkilometerstation(en) angegeben.

--- a/flys-artifacts/src/main/resources/messages_de_DE.properties	Fri Jan 27 14:21:51 2012 +0000
+++ b/flys-artifacts/src/main/resources/messages_de_DE.properties	Fri Jan 27 15:43:04 2012 +0000
@@ -174,3 +174,6 @@
 cannot.interpolate.wq = W/Q-Wert konnte nicht interpoliert werden.
 
 manualpoints = Manuelle Punkte
+
+no.reference.start.km = Keine Startkilometerstation angegeben.
+no.reference.end.kms = Keine Endkilometerstation(en) angegeben.

--- a/flys-artifacts/src/main/resources/messages_en.properties	Fri Jan 27 14:21:51 2012 +0000
+++ b/flys-artifacts/src/main/resources/messages_en.properties	Fri Jan 27 15:43:04 2012 +0000
@@ -170,3 +170,7 @@
 cannot.interpolate.wq = Cannot interpolate W/Q.
 
 manualpoints = Manual Points
+
+no.reference.start.km = No reference start station given.
+no.reference.end.kms = No reference end station(s) given.
+