JAL-2822 JAL-2684 clarified javadoc

diff --git a/src/jalview/datamodel/SequenceI.java b/src/jalview/datamodel/SequenceI.java
index d76c5a7..014a6e5 100755 (executable)
--- a/src/jalview/datamodel/SequenceI.java
+++ b/src/jalview/datamodel/SequenceI.java
@@ -203,11 +203,14 @@ public interface SequenceI extends ASequenceI
   public int findPosition(int i);
 
   /**
-   * Returns the from-to sequence positions (start..) for the given column
-   * positions (1..), or null if no residues are included in the range
+   * Returns the sequence positions for first and last residues lying within the
+   * given column positions [fromColum,toColumn] (where columns are numbered
+   * from 1), or null if no residues are included in the range
    * 
    * @param fromColum
+   *          - first column base 1
    * @param toColumn
+   *          - last column, base 1
    * @return
    */
   public Range findPositions(int fromColum, int toColumn);