--- trunk/src/skrueger/RasterLegendData.java	2009/07/29 09:33:33	244
+++ branches/1.0-gt2-2.6/src/skrueger/RasterLegendData.java	2009/11/09 15:05:41	514
@@ -2,7 +2,7 @@
  * Copyright (c) 2009 Martin O. J. Schmitz.
  * 
  * This file is part of the SCHMITZM library - a collection of utility 
- * classes based on Java 1.6, focussing (not only) on Java Swing 
+ * classes based on Java 1.6, focusing (not only) on Java Swing 
  * and the Geotools library.
  * 
  * The SCHMITZM project is hosted at:
@@ -32,9 +32,16 @@
 import java.util.HashMap;
 import java.util.LinkedList;
 import java.util.List;
+import java.util.Map;
 
 import org.apache.log4j.Logger;
-
+import org.geotools.coverage.grid.GridCoverage2D;
+import org.geotools.geometry.Envelope2D;
+import org.geotools.renderer.lite.gridcoverage2d.GridCoverageRenderer;
+
+import schmitzm.geotools.GTUtil;
+import schmitzm.geotools.grid.GridUtil;
+import skrueger.geotools.Copyable;
 import skrueger.i8n.Translation;
 
 /**
@@ -43,6 +50,7 @@
  *
  * @author <a href="mailto:skpublic@wikisquare.de">Stefan Alfons Kr&uuml;ger</a>
  *
+ * TODO implements {@link Copyable}
  */
 public class RasterLegendData extends HashMap<Double, Translation> {
 	static private final Logger LOGGER = Logger.getLogger(RasterLegendData.class);
@@ -61,7 +69,6 @@
 	 * indicating nominal values in the raster (e.g. classifications)
 	 */
 	public RasterLegendData(boolean paintGaps) {
-		super();
 		this.paintGaps = paintGaps;
 	}
 
@@ -82,4 +89,25 @@
 		return linkedList;
 
 	}
+
+    /**
+     * Creates a sample {@link GridCoverage2D} (size 1x1, WGS84) for each
+     * legend value.  These rasters can be used to do visualize the
+     * legend item in the corresponding color via {@link GridCoverageRenderer}.
+     */
+    public Map<Double, GridCoverage2D> createSampleRasters() {
+      Map<Double, GridCoverage2D> sampleRaster = new HashMap<Double, GridCoverage2D>();
+      
+      for (Double rasterValue : keySet()) {
+        GridCoverage2D grid = GridUtil.GRID_FAC.create(
+            "Legend_"+rasterValue,
+            new float[][] { { rasterValue.floatValue() } },
+            new Envelope2D(GTUtil.WGS84, 0,0,1,1)
+        );
+        sampleRaster.put(rasterValue, grid);
+      }
+      
+      
+      return sampleRaster;
+    }
 }