Tile colors with alpha

src/main/java/org/genesys2/server/service/impl/MappingServiceImpl.java

@@ -187,6 +187,9 @@ public class MappingServiceImpl implements MappingService {
 		// bi.setRGB(i, 255, Color.red.getRGB());
 		// }
 
+		Color color = new Color(Color.yellow.getRed(), Color.yellow.getGreen(), Color.yellow.getBlue(), 170) ;
+		final int colorWithAlpha = color.getRGB();
+		
 		filterService.listGeoTile(true, jsonTree, null, zoom, xtile, ytile, new RowCallbackHandler() {
 			@Override
 			public void processRow(ResultSet rs) throws SQLException {
@@ -202,7 +205,7 @@ public class MappingServiceImpl implements MappingService {
 					for (int i = -pixelSize / 2; i <= pixelSize / 2; i++) {
 						for (int j = -pixelSize / 2; j <= pixelSize / 2; j++) {
 							if (longitude + i >= 0 && latitude + j >= 0 && longitude + i < 256 && latitude + j < 256) {
-								bi.setRGB(longitude + i, latitude + j, Color.yellow.getRGB());
+								bi.setRGB(longitude + i, latitude + j, colorWithAlpha);
 							}
 						}
 					}

src/main/java/org/genesys2/server/servlet/controller/ExplorerController.java

@@ -367,8 +367,16 @@ public class ExplorerController extends BaseController {
 			if (newColor.equals(Color.yellow)) {
 				return imageBytes;
 			}
+			
 
-			final MapColorsFilter mcf = new MapColorsFilter(Color.yellow.getRGB(), newColor.getRGB());
+			Color origColor = new Color(Color.yellow.getRed(), Color.yellow.getGreen(), Color.yellow.getBlue(), 170) ;
+			final int originalColor = origColor.getRGB();
+			
+			Color alphaColor = new Color(newColor.getRed(), newColor.getGreen(), newColor.getBlue(), 170);
+			final int updatedColor = alphaColor.getRGB();
+			
+
+			final MapColorsFilter mcf = new MapColorsFilter(originalColor, updatedColor);
 			final ByteArrayInputStream bios = new ByteArrayInputStream(imageBytes);
 			final BufferedImage image = mcf.filter(ImageIO.read(bios), null);