JAL-2481 JAL-2593 JAL-2526 further optimisation of feature/index finding

[jalview.git] / src / jalview / datamodel / SequenceI.java

diff --git a/src/jalview/datamodel/SequenceI.java b/src/jalview/datamodel/SequenceI.java
index 6840df8..6e6d1aa 100755 (executable)
--- a/src/jalview/datamodel/SequenceI.java
+++ b/src/jalview/datamodel/SequenceI.java
@@ -203,6 +203,16 @@ 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
+   * 
+   * @param fromColum
+   * @param toColumn
+   * @return
+   */
+  public Range findPositions(int fromColum, int toColumn);
+
+  /**
    * Returns an int array where indices correspond to each residue in the
    * sequence and the element value gives its position in the alignment
    *