X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Futil%2FMapList.java;h=dc5bee876134fee1ea42afc4a767a51c90fe893f;hb=34abca821ae5c3f9220bfc246c3055e3ba9f39c3;hp=cae968ee10972e3b5bd3a7c22dd85f558acb0ef5;hpb=134291d04042b3d7252598a9f73753f40da08a18;p=jalview.git

diff --git a/src/jalview/util/MapList.java b/src/jalview/util/MapList.java
index cae968e..dc5bee8 100644
--- a/src/jalview/util/MapList.java
+++ b/src/jalview/util/MapList.java
@@ -1103,4 +1103,14 @@ public class MapList
     return forwardStrand;
   }
 
+  /**
+   * 
+   * @return true if from, or to is a three to 1 mapping
+   */
+  public boolean isTripletMap()
+  {
+    return (toRatio == 3 && fromRatio == 1)
+            || (fromRatio == 3 && toRatio == 1);
+  }
+
 }