diff -u -r1.15 -r1.16
--- HelixUtils.java	18 Oct 2012 15:22:43 -0000	1.15
+++ HelixUtils.java	18 Oct 2012 18:23:13 -0000	1.16
@@ -7,13 +7,15 @@

 
 package org.lcsim.fit.helicaltrack;
 

+import hep.physics.vec.BasicHep3Vector;
+import hep.physics.vec.Hep3Vector;

 import hep.physics.matrix.BasicMatrix;
 import hep.physics.matrix.Matrix;

+

 import hep.physics.matrix.SymmetricMatrix;

-import hep.physics.vec.BasicHep3Vector;
-import hep.physics.vec.Hep3Vector;

 import java.util.ArrayList;
 import java.util.List;

+

 import org.lcsim.fit.circle.CircleFit;
 
 /**

@@ -68,7 +70,7 @@

         return PathCalc(xc(cfit), yc(cfit), RC(cfit), x0(cfit), y0(cfit), pos.x(), pos.y());
     }
     

-     /**

+    /**

      * Return the x-y path length from the DCA to a HelicalTrackHit.
      * @param helix HelicalTrackFit to be used in calculating the path length
      * @param hit hit to be used for the path length calculation

@@ -531,25 +533,19 @@

     }
     
     private static double xc(CircleFit cfit) {

-        //Note that DCA for circle fit has opposite sign w.r.t. the standard L3 definition
-        return cfit.xref() + (RC(cfit) - (-1*cfit.dca())) * Math.sin(cfit.phi());
-        

+        return cfit.xref() + (RC(cfit) - cfit.dca()) * Math.sin(cfit.phi());

     }
     
     private static double yc(CircleFit cfit) {

-        //Note that DCA for circle fit has opposite sign w.r.t. the standard L3 definition
-        return cfit.yref() - (RC(cfit) - (-1*cfit.dca())) * Math.cos(cfit.phi());
-        

+        return cfit.yref() - (RC(cfit) - cfit.dca()) * Math.cos(cfit.phi());

     }
     
     private static double x0(CircleFit cfit) {

-        //Note that DCA for circle fit has opposite sign w.r.t. the standard L3 definition
-        return cfit.xref() - (-1*cfit.dca()) * Math.sin(cfit.phi());

+        return cfit.xref() - cfit.dca() * Math.sin(cfit.phi());

     }
     
     private static double y0(CircleFit cfit) {

-        //Note that DCA for circle fit has opposite sign w.r.t. the standard L3 definition
-        return cfit.yref() + (-1*cfit.dca()) * Math.cos(cfit.phi());

+        return cfit.yref() + cfit.dca() * Math.cos(cfit.phi());

     }
 
 }

\ No newline at end of file