diff --git a/src/java/com/threerings/miso/client/util/IsoUtil.java b/src/java/com/threerings/miso/client/util/IsoUtil.java
index a61faf61c..a405bfce1 100644
--- a/src/java/com/threerings/miso/client/util/IsoUtil.java
+++ b/src/java/com/threerings/miso/client/util/IsoUtil.java
@@ -1,5 +1,5 @@
 //
-// $Id: IsoUtil.java,v 1.43 2003/01/31 23:10:45 mdb Exp $
+// $Id: IsoUtil.java,v 1.44 2003/02/04 03:11:13 mdb Exp $
 
 package com.threerings.miso.client.util;
 
@@ -444,6 +444,17 @@ public class IsoUtil
         return spos;
     }
 
+    /**
+     * Converts the given fine coordinate to a full coordinate (a tile
+     * coordinate plus a fine coordinate remainder). The fine coordinate
+     * is assumed to be relative to tile <code>(0, 0)</code>.
+     */
+    public static int fineToFull (IsoSceneViewModel model, int fine)
+    {
+        return (fine / model.finegran) * FULL_TILE_FACTOR +
+            (fine % model.finegran);
+    }
+
     /**
      * Return a polygon framing the specified tile.
      *