--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/BedHeightMinMaxFacet.java	Wed Mar 28 14:35:01 2018 +0200
@@ -0,0 +1,123 @@
+/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
+ * Software engineering by Intevation GmbH
+ *
+ * This file is Free Software under the GNU AGPL (>=v3)
+ * and comes with ABSOLUTELY NO WARRANTY! Check out the
+ * documentation coming with Dive4Elements River for details.
+ */
+
+package org.dive4elements.river.artifacts.model.minfo;
+
+import java.util.List;
+
+import org.dive4elements.artifacts.Artifact;
+import org.dive4elements.artifacts.CallContext;
+import org.dive4elements.river.artifacts.D4EArtifact;
+import org.dive4elements.river.artifacts.access.BedHeightAccess;
+import org.dive4elements.river.artifacts.model.BlackboardDataFacet;
+import org.dive4elements.river.artifacts.model.FacetTypes;
+import org.dive4elements.river.artifacts.resources.Resources;
+import org.dive4elements.river.model.BedHeight;
+import org.dive4elements.river.model.BedHeightValue;
+
+import gnu.trove.TDoubleArrayList;
+
+/**
+ * More or less the same as {@link BedHeightFacet}, but was necessary to copy because else we break the old
+ * serialization.
+ *
+ * @author Gernot Belger
+ */
+public class BedHeightMinMaxFacet extends BlackboardDataFacet implements FacetTypes {
+
+    private static final long serialVersionUID = 1L;
+
+    public static enum BedHeightValueType {
+        min {
+            @Override
+            public Double getValue(final BedHeightValue bedheightValue) {
+                return bedheightValue.getMinHeight();
+            }
+        },
+        max {
+            @Override
+            public Double getValue(final BedHeightValue bedheightValue) {
+                return bedheightValue.getMaxHeight();
+            }
+        },
+        value {
+            @Override
+            public Double getValue(final BedHeightValue bedheightValue) {
+                return bedheightValue.getHeight();
+            }
+        };
+
+        public abstract Double getValue(final BedHeightValue bedheightValue);
+    }
+
+    private final BedHeightValueType valueType;
+
+    public BedHeightMinMaxFacet(final String name, final String description, final BedHeightValueType valueType) {
+        super(0, name, description);
+
+        this.valueType = valueType;
+
+        this.metaData.put("X", "chart.longitudinal.section.xaxis.label");
+        this.metaData.put("Y", "chart.bedheight_middle.section.yaxis.label");
+    }
+
+    /**
+     * Returns the data this facet requires.
+     *
+     * @param artifact
+     *            the owner artifact.
+     * @param context
+     *            the CallContext (ignored).
+     *
+     * @return the data.
+     */
+    @Override
+    public Object getData(final Artifact artifact, final CallContext context) {
+
+        final BedHeightAccess access = new BedHeightAccess((D4EArtifact) artifact);
+
+        final BedHeight single = BedHeight.getBedHeightById(access.getHeightId());
+
+        final List<BedHeightValue> bedheightValues = BedHeightValue.getBedHeightValues(single, access.getFrom(true), access.getTo(true));
+
+        final TDoubleArrayList stations = new TDoubleArrayList(bedheightValues.size());
+        final TDoubleArrayList values = new TDoubleArrayList(bedheightValues.size());
+
+        for (final BedHeightValue bedheightValue : bedheightValues) {
+
+            final Double station = bedheightValue.getStation();
+            final Double value = this.valueType.getValue(bedheightValue);
+
+            if (station != null && value != null) {
+                stations.add(station);
+                values.add(value);
+            }
+        }
+
+        this.addMetaData(Resources.getMsg(context.getMeta(), "meta.bedheight.cur.elevation"), single.getCurElevationModel().getName());
+
+        if (single.getOldElevationModel() != null)
+            this.addMetaData(Resources.getMsg(context.getMeta(), "meta.bedheight.old.elevation"), single.getOldElevationModel().getName());
+
+        this.addMetaData(Resources.getMsg(context.getMeta(), "meta.bedheight.river.elevation"), access.getRiver().getWstUnit().getName());
+
+        return new double[][] { stations.toNativeArray(), values.toNativeArray() };
+    }
+
+    /**
+     * Create a deep copy of this Facet.
+     *
+     * @return a deep copy.
+     */
+    @Override
+    public BedHeightMinMaxFacet deepCopy() {
+        final BedHeightMinMaxFacet copy = new BedHeightMinMaxFacet(this.name, this.description, this.valueType);
+        copy.set(this);
+        return copy;
+    }
+}
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