diff --git a/vroni/Include/vroni_object.h b/vroni/Include/vroni_object.h
index a5fa091..c20a3ed 100644
--- a/vroni/Include/vroni_object.h
+++ b/vroni/Include/vroni_object.h
@@ -2031,6 +2031,10 @@ public:
                                     coord u, coord v, int color);
 #endif
 
+  // ADD
+   void AddHyperbolaToBuffer(int i, double t1, double t2, 
+                             coord u, coord v, int color);
+
    double NodeRadiiClassificator(int e, coord p);
 
    double NodeSegClassificator(int i, coord p);
@@ -3209,7 +3213,8 @@ public :
    BisectorType GetBisectorType( int i) ;
    vr_bool GetBisectorParams( int nEdge, double& dParS, double& dParE) ;
    vr_bool GetBisectorPointAtParam( int nEdge, double dPar, double pt[3]) ;
-   vr_bool GetBisectorSites( int nEdge, int& nOrigCrvL, int& nOrigSubCrvL, int& nOrigCrvR, int& nOrigSubCrvR) ;
+   vr_bool GetBisectorSites( int nEdge, int& nOrigCrvL, int& nOrigSubCrvL, int& nOrigSubPntL, 
+                             int& nOrigCrvR, int& nOrigSubCrvR, int& nOrigSubPntR) ;
    vr_bool GetApproxedBisectorParams( int nEdge, double& dParS, double& dParE) ;
    int GetApproxedBisectorPointsNbr( int nEdge) ;
    vr_bool GetApproxedBisectorPoint( int nEdge, int nPointIdx, double pt[3], double& dPar) ;
diff --git a/vroni/Lib/vroniD32.lib b/vroni/Lib/vroniD32.lib
index fdf960b..83afdd1 100644
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diff --git a/vroni/Lib/vroniD32.pdb b/vroni/Lib/vroniD32.pdb
index 7c7736e..cb4d513 100644
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diff --git a/vroni/Lib/vroniD64.lib b/vroni/Lib/vroniD64.lib
index 3182740..ea6d1a0 100644
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diff --git a/vroni/Lib/vroniR32.lib b/vroni/Lib/vroniR32.lib
index ae4b2d7..04c2a64 100644
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diff --git a/vroni/Lib/vroniR64.lib b/vroni/Lib/vroniR64.lib
index 4181565..f185e0e 100644
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