--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/access/ComputationRangeAccess.java	Tue Feb 27 18:06:52 2018 +0100
@@ -0,0 +1,64 @@
+/** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
+ * Software engineering by
+ *  Björnsen Beratende Ingenieure GmbH
+ *  Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
+ *
+ * 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.access;
+
+import org.dive4elements.artifactdatabase.data.StateData;
+import org.dive4elements.river.artifacts.D4EArtifact;
+import org.dive4elements.river.artifacts.states.ComputationRangeState;
+import org.dive4elements.river.utils.DoubleUtil;
+
+/**
+ * Access to data handled by {@link ComputationRangeState}.
+ *
+ * @author Gernot Belger
+ */
+public class ComputationRangeAccess extends RangeAccess {
+
+    public ComputationRangeAccess(final D4EArtifact artifact) {
+        super(artifact);
+    }
+
+    public double[] getFromToStep() {
+
+        if (!isRange())
+            return null;
+
+        final double[] fromTo = getKmRange();
+
+        if (fromTo == null)
+            return null;
+
+        final StateData dStep = getArtifact().getData("ld_step");
+        if (dStep == null)
+            return null;
+
+        final double[] result = new double[3];
+        result[0] = fromTo[0];
+        result[1] = fromTo[1];
+
+        try {
+            final String dStepValue = (String) dStep.getValue();
+            result[2] = DoubleUtil.round(Double.parseDouble(dStepValue) / 1000d);
+            return result;
+        }
+        catch (final NumberFormatException nfe) {
+            nfe.printStackTrace();
+            return null;
+        }
+    }
+
+    public double[] getKms() {
+
+        if (isRange())
+            return getKmSteps();
+
+        return getLocations();
+    }
+}
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