Index: src/hg/hgTracks/imageV2.h
===================================================================
RCS file: /projects/compbio/cvsroot/kent/src/hg/hgTracks/imageV2.h,v
retrieving revision 1.13
retrieving revision 1.14
diff -b -B -U 4 -r1.13 -r1.14
--- src/hg/hgTracks/imageV2.h	9 Feb 2010 00:12:28 -0000	1.13
+++ src/hg/hgTracks/imageV2.h	10 Feb 2010 00:37:57 -0000	1.14
@@ -276,9 +276,9 @@
    Since a map item may span slices, the imgTrack is in the best position to determine where to put the map item
    returns count of map items added, which could be 0, 1 or more than one if item spans slices
    NOTE: Precedence is given to first map item when adding items with same coordinates! */
 boolean imgTrackIsComplete(struct imgTrack *imgTrack,boolean verbose);
-/* Tests the completeness and consistency of this imgTrack (not including slices) */
+/* Tests the completeness and consistency of this imgTrack (including slices) */
 void imgTrackFree(struct imgTrack **pImgTrack);
 /* frees all memory assocated with an imgTrack (including slices) */
 
 
@@ -329,8 +329,11 @@
 struct imgTrack *imgBoxTrackUpdateOrAdd(struct imgBox *imgBox,struct trackDb *tdb,char *name,enum trackVisibility vis,boolean showCenterLabel,int order);
 /* Updates the imgTrack, or adds it if not found */
 void imgBoxTracksNormalizeOrder(struct imgBox *imgBox);
 /* This routine sorts the imgTracks then forces tight ordering, so new tracks wil go to the end */
+int imgBoxDropEmpties(struct imgBox *imgBox);
+/* Empty imageTracks (without slices) is not an error but they should be dropped.
+   returns remaining current track count */
 boolean imgBoxIsComplete(struct imgBox *imgBox,boolean verbose);
 /* Tests the completeness and consistency of an imgBox. */
 void imgBoxFree(struct imgBox **pImgBox);
 /* frees all memory assocated with an imgBox (including images and imgTracks) */

