diff --git a/EGkStringUtils3d.h b/EGkStringUtils3d.h
index 6eea11a..0421a40 100644
--- a/EGkStringUtils3d.h
+++ b/EGkStringUtils3d.h
@@ -52,16 +52,16 @@ ToString( const Point3d& ptVal, int nPrec = 6)
         sBuff += ToString( ptVal.z, nPrec) ;
         return sBuff ; }
 inline const std::string
-ToString( const Point3d& ptVal, double dW, int nPrec = 6)
+ToString( const Point3d& ptVal, double dW, int nPrecP = 6, int nPrecW = 9)
       { std::string sBuff ;
         sBuff.reserve( 64) ;
-        sBuff += ToString( ptVal.x, nPrec) ;
+        sBuff += ToString( ptVal.x, nPrecP) ;
         sBuff += ',' ;
-        sBuff += ToString( ptVal.y, nPrec) ;
+        sBuff += ToString( ptVal.y, nPrecP) ;
         sBuff += ',' ;
-        sBuff += ToString( ptVal.z, nPrec) ;
+        sBuff += ToString( ptVal.z, nPrecP) ;
         sBuff += ',' ;
-        sBuff += ToString( dW, nPrec) ;
+        sBuff += ToString( dW, nPrecW) ;
         return sBuff ; }
 inline const std::string
 ToString( const Frame3d& frF, int nPrecP = 6, int nPrecV = 9)