--- a/gnv-artifacts/ChangeLog	Wed Mar 31 12:18:03 2010 +0000
+++ b/gnv-artifacts/ChangeLog	Wed Mar 31 13:48:07 2010 +0000
@@ -1,3 +1,14 @@
+2010-03-31  Ingo Weinzierl <ingo.weinzierl@intevation.de>
+
+	* src/main/java/de/intevation/gnv/jfreechart/LevelOrderIndices.java,
+	  src/main/java/de/intevation/gnv/jfreechart/PolygonSeries.java,
+	  src/main/java/de/intevation/gnv/jfreechart/PolygonPlot.java,
+	  src/main/java/de/intevation/gnv/jfreechart/CompactXYItems.java,
+	  src/main/java/de/intevation/gnv/jfreechart/PolygonSeriesLabelGenerator.java,
+	  src/main/java/de/intevation/gnv/jfreechart/PolygonDataset.java,
+	  src/main/java/de/intevation/gnv/jfreechart/PolygonRenderer.java: Added
+	  JavaDoc.
+
 2010-03-31  Ingo Weinzierl <ingo.weinzierl@intevation.de>
 
 	* src/main/java/de/intevation/gnv/exports/Export.java,

--- a/gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/CompactXYItems.java	Wed Mar 31 12:18:03 2010 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/CompactXYItems.java	Wed Mar 31 13:48:07 2010 +0000
@@ -3,43 +3,93 @@
 import java.io.Serializable;
 
 /**
+ * This class is used to represent geometries (e.g. point, line, polygon). Each
+ * geometry is made up of multiple xy points stored in a single array. A line
+ * composed by start- and endpoint is stored in the following order in that
+ * array: [x1, y1, x2, y2].
+ *
  * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha Teichmann</a>
  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
  */
 public class CompactXYItems
 implements   Serializable
 {
+    /**
+     * Array storing the xy items.
+     */
     protected double [] data;
 
+    /**
+     * Constructs a new CompactXYItems object with the given data.
+     *
+     * @param data An array with xy values.
+     */
     public CompactXYItems(double [] data) {
         this.data = data;
     }
 
+    /**
+     * Retrieves the x coordinate of the point with the given index.
+     *
+     * @param index Index
+     * @return X coordinate.
+     */
     public double getX(int index) {
         return data[index << 1];
     }
 
+    /**
+     * Retrieves the y coordinate of the point with the given index.
+     *
+     * @param index Index
+     * @return Y coordinate.
+     */
     public double getY(int index) {
         return data[(index << 1)+1];
     }
 
+    /**
+     * Write the tupel of xy-values at a specific index into the given array.
+     *
+     * @param index Index used to specify the xy-value.
+     * @param xy the xy coordinate is written into this array with the following
+     * order: [x,y]
+     */
     public void get(int index, double [] xy) {
         xy[0] = data[index = (index << 1) + 1];
         xy[1] = data[index + 1];
     }
 
+    /**
+     *
+     * @return the data array.
+     */
     public double [] getData() {
         return data;
     }
 
+    /**
+     *
+     * @param data
+     */
     public void setData(double [] data) {
         this.data = data;
     }
 
+    /**
+     *
+     * @return
+     */
     public int size() {
         return data.length >> 1;
     }
 
+    /**
+     * Retrieves the bounding box spaned by the coordinates in the data array.
+     *
+     * @param bbox
+     * @return
+     */
     public double [] calculateBoundingBox(double [] bbox)  {
         for (int i = 0; i < data.length;) {
             double x = data[i++];
@@ -52,6 +102,11 @@
         return bbox;
     }
 
+    /**
+     *
+     * @return the coordinates as string.
+     */
+    @Override
     public String toString() {
         StringBuilder sb = new StringBuilder();
         for (int i = 0; i < data.length;) {
@@ -66,6 +121,10 @@
     }
 
 
+    /**
+     *
+     * @return the lowest x value.
+     */
     public double getMinX() {
         double lower = Double.POSITIVE_INFINITY;
 
@@ -81,6 +140,10 @@
     }
 
 
+    /**
+     *
+     * @return the highest x value.
+     */
     public double getMaxX() {
         double upper = Double.NEGATIVE_INFINITY;
 
@@ -96,6 +159,10 @@
     }
 
 
+    /**
+     *
+     * @return the lowest y value.
+     */
     public double getMinY() {
         double lower = Double.POSITIVE_INFINITY;
 
@@ -111,6 +178,10 @@
     }
 
 
+    /**
+     *
+     * @return the highest y value.
+     */
     public double getMaxY() {
         double upper = Double.NEGATIVE_INFINITY;
 
@@ -125,4 +196,4 @@
         return upper;
     }
 }
-// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
\ No newline at end of file

--- a/gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/LevelOrderIndices.java	Wed Mar 31 12:18:03 2010 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/LevelOrderIndices.java	Wed Mar 31 13:48:07 2010 +0000
@@ -7,25 +7,56 @@
  */
 public class LevelOrderIndices
 {
+    /**
+     *
+     */
     public interface Visitor {
+        /**
+         *
+         * @param index
+         * @return
+         */
         Object visit(int index);
     }
 
+    /**
+     *
+     */
     protected int from;
+    /**
+     *
+     */
     protected int to;
 
+    /**
+     *
+     */
     public LevelOrderIndices() {
     }
 
+    /**
+     *
+     * @param to
+     */
     public LevelOrderIndices(int to) {
         this(0, to);
     }
 
+    /**
+     *
+     * @param from
+     * @param to
+     */
     public LevelOrderIndices(int from, int to) {
         this.from = Math.min(from, to);
         this.to   = Math.max(from, to);
     }
 
+    /**
+     *
+     * @param visitor
+     * @return
+     */
     public Object visit(Visitor visitor) {
         LinkedList<int[]> queue = new LinkedList<int[]>();
 

--- a/gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/PolygonDataset.java	Wed Mar 31 12:18:03 2010 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/PolygonDataset.java	Wed Mar 31 13:48:07 2010 +0000
@@ -9,23 +9,42 @@
 import org.jfree.data.general.AbstractSeriesDataset;
 
 /**
+ * An implementation of {@link org.jfree.data.xy.XYDataset} to create 2D charts.
+ * This dataset contains several <code>PolygonSeries</code> and is used by
+ * <code>PolygonRenderer</code> to draw its items into a 2D chart.
+ * 
  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
  */
 public class PolygonDataset
 extends      AbstractSeriesDataset
 {
-    /** PolygonSeries included in this Dataset */
+    /**
+     * PolygonSeries included in this Dataset
+     */
     private List data;
 
 
+    /**
+     * Constructor.
+     */
     public PolygonDataset() {
         data = new ArrayList();
     }
 
+    /**
+     * Constructs a new PolygonDataset containing multiple PolygonSeries.
+     *
+     * @param series A collection containing some PolygonSeries.
+     */
     public PolygonDataset(Collection series) {
         data = new ArrayList(series);
     }
 
+    /**
+     * Constructs a PolygonDataset with a single PolygonSeries.
+     * 
+     * @param series A PolygonSeries.
+     */
     public PolygonDataset(PolygonSeries series) {
         this();
 
@@ -35,6 +54,10 @@
     }
 
 
+    /**
+     *
+     * @param series
+     */
     public void addSeries(PolygonSeries series) {
         if (series == null)
             throw new IllegalArgumentException("Null 'series' argument.");
@@ -42,10 +65,19 @@
         data.add(series);
     }
 
+    /**
+     *
+     * @param series
+     */
     public void addAllSeries(Collection<PolygonSeries> series) {
         data.addAll(series);
     }
 
+    /**
+     * Retrieves the x-axis range of all PolygonSeries in this dataset.
+     *
+     * @return range of the x-axis.
+     */
     public Range getDomainBounds() {
         double lower       = Double.POSITIVE_INFINITY;
         double upper       = Double.NEGATIVE_INFINITY;
@@ -70,6 +102,11 @@
     }
 
 
+    /**
+     * Retrieves the y-axis range of all PolygonSeries in this dataset.
+     *
+     * @return the y-axis range.
+     */
     public Range getRangeBounds() {
         double lower       = Double.POSITIVE_INFINITY;
         double upper       = Double.NEGATIVE_INFINITY;
@@ -94,18 +131,34 @@
     }
 
 
+    /**
+     * Returns the number of series in this dataset.
+     *
+     * @return the number of series in this dataset.
+     */
     public int getSeriesCount() {
         return data.size();
     }
 
 
-    public Comparable getSeriesKey(int series) {
-        return ((PolygonSeries)data.get(series)).getKey();
+    /**
+     * Returns the key for a series.
+     *
+     * @param index Index of a specific series.
+     * @return the series key of the series with the given index.
+     */
+    public Comparable getSeriesKey(int index) {
+        return ((PolygonSeries)data.get(index)).getKey();
     }
 
 
+    /**
+     *
+     * @param idx Index.
+     * @return the series with the given index.
+     */
     public PolygonSeries getSeries(int idx) {
         return (PolygonSeries)data.get(idx);
     }
 }
-// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
\ No newline at end of file

--- a/gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/PolygonPlot.java	Wed Mar 31 12:18:03 2010 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/PolygonPlot.java	Wed Mar 31 13:48:07 2010 +0000
@@ -32,14 +32,23 @@
 import org.jfree.util.ObjectList;
 
 /**
+ * A class for plotting polygons into a 2D chart. This plot makes use of <code>
+ * PolygonRenderer</code>.
+ * 
  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
  */
 // TODO implement cloneable
 public class PolygonPlot
 extends      Plot
 {
+    /**
+     *
+     */
     public static final String PLOT_TYPE = "PolygonPlot";
 
+    /**
+     *
+     */
     public static final PlotOrientation DEFAULT_PLOT_ORIENTATION =
         PlotOrientation.VERTICAL;
 
@@ -56,11 +65,23 @@
     private ObjectList      rangeAxes;
 
 
+    /**
+     * Constructs a new PolygonPlot with a dataset and a renderer.
+     *
+     * @param dataset Dataset containing polygons.
+     * @param renderer The renderer used to draw polygons.
+     */
     public PolygonPlot(PolygonDataset dataset, PolygonRenderer renderer) {
         this(dataset, renderer, null, null, PlotOrientation.HORIZONTAL);
     }
 
 
+    /**
+     *
+     * @param dataset Dataset containing polygons.
+     * @param renderer The renderer used to draw polygons.
+     * @param orientation The orientation used for this plot.
+     */
     public PolygonPlot(
         PolygonDataset  dataset,
         PolygonRenderer renderer,
@@ -70,6 +91,14 @@
     }
 
 
+    /**
+     *
+     * @param dataset Dataset containing polygons.
+     * @param renderer The renderer used to draw polygons.
+     * @param domainAxis The x axis.
+     * @param rangeAxis The y axis.
+     * @param orientation The orientation used for this plot.
+     */
     public PolygonPlot(
         PolygonDataset  dataset,
         PolygonRenderer renderer,
@@ -109,6 +138,9 @@
     }
 
 
+    /**
+     *
+     */
     public void configureDomainAxis() {
         // we just have 1 dataset
         Range domainAxisRange = getDataset().getDomainBounds();
@@ -123,26 +155,47 @@
         }
     }
 
+    /**
+     *
+     * @return
+     */
     public ValueAxis getDomainAxis() {
         return getDomainAxis(0);
     }
 
+    /**
+     *
+     * @param index
+     * @return
+     */
     public ValueAxis getDomainAxis(int index) {
         return index < domainAxes.size()
             ? (ValueAxis)domainAxes.get(index)
             : null;
     }
 
+    /**
+     *
+     * @return
+     */
     public ValueAxis getRangeAxis() {
         return getRangeAxis(0);
     }
 
+    /**
+     *
+     * @param index
+     * @return
+     */
     public ValueAxis getRangeAxis(int index) {
         return index < rangeAxes.size()
             ? (ValueAxis)rangeAxes.get(index)
             : null;
     }
 
+    /**
+     *
+     */
     public  void configureRangeAxis() {
         // we just have 1 dataset
         Range rangeAxisRange = getDataset().getRangeBounds();
@@ -158,21 +211,42 @@
     }
 
 
+    /**
+     *
+     * @return
+     */
     public PolygonDataset getDataset(){
         return this.dataset;
     }
 
 
+    /**
+     *
+     * @return
+     */
     public String getPlotType() {
         return PLOT_TYPE;
     }
 
 
+    /**
+     *
+     * @param dataset
+     */
     public  void setDataset(PolygonDataset dataset) {
         this.dataset = dataset;
     }
 
 
+    /**
+     * This is the major method to draw the into a given Graphic2D object.
+     *
+     * @param g2 Graphics object where the plot is drawn into.
+     * @param area The bounds for drawing this plot.
+     * @param anchor An anchor point.
+     * @param parentState The plot state.
+     * @param info
+     */
     public void draw(
         Graphics2D        g2,
         Rectangle2D       area,
@@ -218,6 +292,14 @@
     }
 
 
+    /**
+     * Method to draw the axis for this plot.
+     * 
+     * @param g2
+     * @param plotArea
+     * @param dataArea
+     * @param plotState
+     */
     private void drawAxes(
         Graphics2D        g2,
         Rectangle2D       plotArea,
@@ -290,6 +372,14 @@
     }
 
 
+    /**
+     * Put some labels at data items into the plot. Uses PolygonRenderer to do
+     * this job.
+     *
+     * @param g2
+     * @param area
+     * @param info
+     */
     private void drawLabels(
         Graphics2D        g2,
         Rectangle2D       area,
@@ -298,6 +388,14 @@
         renderer.drawLabels(g2, this, area, dataset);
     }
 
+
+    /**
+     * Plot the polygons. Uses PolygonRenderer to do this job.
+     * 
+     * @param g2
+     * @param area
+     * @param info
+     */
     private void drawPolygons(
         Graphics2D        g2,
         Rectangle2D       area,
@@ -307,6 +405,12 @@
     }
 
 
+    /**
+     *
+     * @param g2
+     * @param plotArea
+     * @return
+     */
     private AxisSpace calculateAxisSpace(Graphics2D  g2, Rectangle2D plotArea) {
         AxisSpace space         = new AxisSpace();
         space                   = calculateRangeAxisSpace(g2, plotArea, space);
@@ -317,6 +421,13 @@
     }
 
 
+    /**
+     * 
+     * @param g2
+     * @param plotArea
+     * @param space
+     * @return
+     */
     private AxisSpace calculateDomainAxisSpace(
         Graphics2D  g2,
         Rectangle2D plotArea,
@@ -338,6 +449,13 @@
     }
 
 
+    /**
+     *
+     * @param g2
+     * @param plotArea
+     * @param space
+     * @return
+     */
     private AxisSpace calculateRangeAxisSpace(
         Graphics2D  g2,
         Rectangle2D plotArea,
@@ -358,6 +476,11 @@
         return space;
     }
 
+
+    /**
+     *
+     * @return
+     */
     public RectangleEdge getDomainAxisEdge() {
         return Plot.resolveDomainAxisLocation(
             getDomainAxisLocation(), orientation
@@ -365,6 +488,11 @@
     }
 
 
+    /**
+     *
+     * @param idx
+     * @return
+     */
     public RectangleEdge getDomainAxisEdge(int idx) {
         AxisLocation  location = getDomainAxisLocation(idx);
         RectangleEdge result   = Plot.resolveDomainAxisLocation(
@@ -378,6 +506,10 @@
     }
 
 
+    /**
+     *
+     * @return
+     */
     public RectangleEdge getRangeAxisEdge() {
         return Plot.resolveRangeAxisLocation(
             getRangeAxisLocation(), orientation
@@ -385,6 +517,11 @@
     }
 
 
+    /**
+     *
+     * @param idx
+     * @return
+     */
     public RectangleEdge getRangeAxisEdge(int idx) {
         AxisLocation  location = getRangeAxisLocation(idx);
         RectangleEdge result   = Plot.resolveRangeAxisLocation(
@@ -399,11 +536,20 @@
     }
 
 
+    /**
+     *
+     * @return
+     */
     public AxisLocation getDomainAxisLocation() {
         return (AxisLocation) domainAxisLocation.get(0);
     }
 
 
+    /**
+     *
+     * @param idx
+     * @return
+     */
     public AxisLocation getDomainAxisLocation(int idx) {
         if (idx < domainAxisLocation.size())
             return (AxisLocation) domainAxisLocation.get(idx);
@@ -412,11 +558,20 @@
     }
 
 
+    /**
+     *
+     * @return
+     */
     public AxisLocation getRangeAxisLocation() {
         return (AxisLocation) rangeAxisLocation.get(0);
     }
 
 
+    /**
+     *
+     * @param idx
+     * @return
+     */
     public AxisLocation getRangeAxisLocation(int idx) {
         if (idx < rangeAxisLocation.size())
             return (AxisLocation) rangeAxisLocation.get(idx);
@@ -425,6 +580,12 @@
     }
 
 
+    /**
+     * 
+     * @param dataset
+     * @return true, if dataset is null or if it does not contain any
+     * PolygonSeries, otherwise false.
+     */
     private boolean isEmptyOrNull(PolygonDataset dataset) {
         if (dataset != null) {
             int seriesCount = dataset.getSeriesCount();
@@ -438,3 +599,4 @@
         return true;
     }
 }
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
\ No newline at end of file

--- a/gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/PolygonRenderer.java	Wed Mar 31 12:18:03 2010 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/PolygonRenderer.java	Wed Mar 31 13:48:07 2010 +0000
@@ -27,6 +27,8 @@
 import org.jfree.ui.RectangleEdge;
 
 /**
+ * This renderer is used to draw polygons into a Graphics object.
+ * 
  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
  * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a>
  */
@@ -35,40 +37,83 @@
 	private static Logger log = Logger.getLogger(
 		PolygonRenderer.class);
 
-    public interface PaintLookup {
+        /**
+         * This interfaces describes a single method to retrieve a Paint object
+         * for a given index.
+         */
+        public interface PaintLookup {
 
-        Paint getPaint(int index);
+            /**
+             *
+             * @param index Index.
+             * @return Paint
+             */
+            Paint getPaint(int index);
 
     } // interface PaintLookup
 
-    public static class DefaultLabelGenerator
+        /**
+         * This class is used to generate labels for a given series.
+         */
+        public static class DefaultLabelGenerator
     implements          PolygonSeriesLabelGenerator
     {
-        public DefaultLabelGenerator() {
+            /**
+             * Construts an empty DefaultLabelGenerator.
+             */
+            public DefaultLabelGenerator() {
         }
 
-        public String generateLabel(PolygonSeries series) {
+            /**
+             *
+             * @param series A PolygonSeries.
+             * @return The label of series.
+             */
+            public String generateLabel(PolygonSeries series) {
             Object label = series.getAttribute("label");
             return label != null
                 ? toString(label)
                 : null;
         }
 
-        protected String toString(Object label) {
+            /**
+             *
+             * @param label Object
+             * @return String representaton of label.
+             */
+            protected String toString(Object label) {
             return label.toString();
         }
     } // class DefaultLabelGenerator
 
-    public static final PolygonSeriesLabelGenerator
+        /**
+         * Constructor.
+         */
+        public static final PolygonSeriesLabelGenerator
         DEFAULT_LABEL_GENERATOR_INSTANCE = new DefaultLabelGenerator();
 
-    protected PaintLookup                 lookup;
+        /**
+         *
+         */
+        protected PaintLookup                 lookup;
+    /**
+     *
+     */
     protected PolygonSeriesLabelGenerator labelGenerator;
 
+    /**
+     *
+     * @param lookup
+     */
     public PolygonRenderer(PaintLookup lookup) {
         this(lookup, null);
     }
 
+    /**
+     *
+     * @param lookup
+     * @param labelGenerator
+     */
     public PolygonRenderer(
         PaintLookup                 lookup,
         PolygonSeriesLabelGenerator labelGenerator
@@ -77,6 +122,16 @@
         this.labelGenerator = labelGenerator;
     }
 
+    /**
+     * This method draws polygons of each series in <code>dataset</code> into
+     * the given graphics object. If a polygon has no attribute 'fill', we
+     * expect that it is a line, otherwise the polygon is filled.
+     *
+     * @param graphics
+     * @param plot
+     * @param area
+     * @param dataset
+     */
     public void drawPolygons(
         Graphics2D     graphics,
         PolygonPlot    plot,
@@ -104,6 +159,15 @@
         }
     }
 
+    /**
+     * Draw labels at each item of a series in the given dataset. If the series
+     * has no label attritue, no label is drawn.
+     * 
+     * @param graphics
+     * @param plot
+     * @param area
+     * @param dataset
+     */
     public void drawLabels(
         final Graphics2D  graphics,
         final PolygonPlot plot,
@@ -169,6 +233,16 @@
         } // for all series
     }
 
+    /**
+     * Creates a shape made up of the CompactXYItems object stored in the given
+     * series.
+     *
+     * @param plot The plot.
+     * @param area The boundary.
+     * @param series The series storing the items.
+     * @param close Specifies if the polygon should be closed or not.
+     * @return
+     */
     protected Shape constructShape(
         PolygonPlot   plot,
         Rectangle2D   area,
@@ -206,6 +280,12 @@
         return path;
     }
 
+    /**
+     * Retrieves the bounding box of a dataset.
+     *
+     * @param dataset
+     * @return
+     */
     public Rectangle2D getBoundingBox(PolygonDataset dataset) {
         Rectangle2D bbox = null;
 
@@ -229,6 +309,11 @@
         return bbox;
     }
 
+    /**
+     *
+     * @param series
+     * @return the bounds of a series.
+     */
     public Rectangle2D getBounds(PolygonSeries series) {
 
         Range domain = series.getDomainBounds();

--- a/gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/PolygonSeries.java	Wed Mar 31 12:18:03 2010 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/PolygonSeries.java	Wed Mar 31 13:48:07 2010 +0000
@@ -8,29 +8,59 @@
 import org.jfree.data.general.Series;
 
 /**
+ * This class represents a series of polygon items.
+ *
  * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha Teichmann</a>
  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
  */
 public class PolygonSeries
 extends      Series
 {
+    /**
+     * Polygons.
+     */
     protected CompactXYItems []  rings;
+
+    /**
+     * A map containing attribues.
+     */
     protected Map                attributes;
 
+    /**
+     * The unique key of this series.
+     */
     private static long uniqueKey;
 
+    /**
+     *
+     * @return a unique key.
+     */
     protected synchronized static Long createUniqueKey() {
         return new Long(uniqueKey++);
     }
 
+    /**
+     * Constructor to create an empty PolygonSeries with a unique key.
+     */
     public PolygonSeries() {
         this(createUniqueKey(), null);
     }
 
+    /**
+     *
+     * @param key The key used for  this series.
+     * @param rings Polygons.
+     */
     public PolygonSeries(Comparable key, CompactXYItems [] rings) {
         this(key, null, rings, new HashMap());
     }
 
+    /**
+     *
+     * @param key The key used for this series.
+     * @param description A description of this series.
+     * @param rings Polygons.
+     */
     public PolygonSeries(
         Comparable       key,
         String           description,
@@ -39,6 +69,13 @@
         this(key, description, rings, new HashMap());
     }
 
+    /**
+     *
+     * @param key The key used for this series.
+     * @param description A description of this series.
+     * @param rings Polygons.
+     * @param attributes Some attribues.
+     */
     public PolygonSeries(
         Comparable        key,
         String            description,
@@ -51,14 +88,26 @@
     }
 
 
+    /**
+     *
+     * @param rings
+     */
     public void setRings(CompactXYItems [] rings) {
         this.rings = rings;
     }
 
+    /**
+     *
+     * @return
+     */
     public CompactXYItems [] getRings() {
         return rings;
     }
 
+    /**
+     *
+     * @param newRing
+     */
     public void addRing(CompactXYItems newRing) {
         if (rings == null) {
             rings = new CompactXYItems [] { newRing };
@@ -71,6 +120,10 @@
         }
     }
 
+    /**
+     *
+     * @param newRings
+     */
     public void addRings(CompactXYItems [] newRings) {
         if (newRings == null || newRings.length == 0) {
             return;
@@ -87,36 +140,70 @@
         }
     }
 
+    /**
+     *
+     * @param key
+     * @return
+     */
     public Object getAttribute(Object key) {
         return attributes.get(key);
     }
 
 
+    /**
+     *
+     * @param key
+     * @param value
+     * @return
+     */
     public Object setAttribute(Object key, Object value) {
         return attributes.put(key, value);
     }
 
 
+    /**
+     *
+     * @return
+     */
     public int getItemCount() {
         return rings != null ? rings.length : 0;
     }
 
 
+    /**
+     *
+     * @param idx
+     * @return
+     */
     public CompactXYItems getItem(int idx) {
         return rings[idx];
     }
 
 
+    /**
+     *
+     * @param key
+     * @return
+     */
     public Object removeAttribute(Object key) {
         return attributes.remove(key);
     }
 
 
+    /**
+     *
+     * @param key
+     * @return
+     */
     public boolean hasAttribute(Object key) {
         return attributes.containsKey(key);
     }
 
 
+    /**
+     *
+     * @return the range of the x axis.
+     */
     public Range getDomainBounds() {
         double upper = Double.NEGATIVE_INFINITY;
         double lower = Double.POSITIVE_INFINITY;
@@ -144,6 +231,10 @@
     }
 
 
+    /**
+     *
+     * @return the range of the y axis.
+     */
     public Range getRangeBounds() {
         double upper = Double.NEGATIVE_INFINITY;
         double lower = Double.POSITIVE_INFINITY;

--- a/gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/PolygonSeriesLabelGenerator.java	Wed Mar 31 12:18:03 2010 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/PolygonSeriesLabelGenerator.java	Wed Mar 31 13:48:07 2010 +0000
@@ -1,10 +1,17 @@
 package de.intevation.gnv.jfreechart;
 
 /**
+ * This interface describes a single method generating labels by given Series.
+ * 
  * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a>
  */
 public interface PolygonSeriesLabelGenerator
 {
+    /**
+     *
+     * @param series The given series.
+     * @return A label for this series.
+     */
     String generateLabel(PolygonSeries series);
 }
 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :