javadoc update + exception errors improved

converter-graphics/src/main/java/lcsb/mapviewer/converter/graphics/AbstractImageGenerator.java

@@ -767,7 +767,7 @@ public abstract class AbstractImageGenerator {
 				} else {
 					// if a child is not a compartment or a species then we have a
 					// problem
-					throw new DrawingException(eu.getElementTag(compartment) + "Unknown Element type");
+					throw new DrawingException(eu.getElementTag(child) + "Unknown Element type");
 				}
 
 			}
@@ -788,12 +788,6 @@ public abstract class AbstractImageGenerator {
 	 *           thrown when there was a problem with drawing a {@link Species}
 	 */
 	protected void drawSpecies(final Species species) throws DrawingException {
-
-		/**
-		 * Last conditions in this 'ifs' provides the certainty of visibility of
-		 * most bottom Complexes.
-		 */
-
 		if (!cross(species.getBorder())) {
 			return;
 		}
@@ -846,6 +840,7 @@ public abstract class AbstractImageGenerator {
 	 * @param reaction
 	 *          object to be drawn
 	 * @throws DrawingException
+	 *           thrown when there was a problem with drawing a {@link Reaction}
 	 */
 	protected void drawReaction(final Reaction reaction) throws DrawingException {
 		if (!cross(reaction.getLines())) {