diff --git a/include/Algo/Render/GL2/topoRender.h b/include/Algo/Render/GL2/topoRender.h
index 8ef05d2587b99e23f343a6f7c800099a9e08b6fd..a0020db55315069e0898cb4d252bb5f9ce797946 100644
--- a/include/Algo/Render/GL2/topoRender.h
+++ b/include/Algo/Render/GL2/topoRender.h
@@ -279,6 +279,12 @@ public:
 	 * @param ns distance shift along normals (use BB.diagSize()/100 is good approximation)
 	 */
 	void setNormalShift(float ns);
+
+	/**
+	 * @brief set boundary shift for boundary of dim 2 drawing
+	 * @param ns distance shift
+	 */
+	void setBoundaryShift(float bs);
 };
 
 // just for compatibility with old code
diff --git a/src/Algo/Render/topoRender.cpp b/src/Algo/Render/topoRender.cpp
index ea5983a991943746ee66633927789dad37dcfcf9..126e184bf54c88a8b99dc8683e838cd0a32794f0 100644
--- a/src/Algo/Render/topoRender.cpp
+++ b/src/Algo/Render/topoRender.cpp
@@ -345,6 +345,17 @@ void TopoRender::toSVG(Utils::SVG::SVGOut& svg)
 }
 
 
+void TopoRender::setNormalShift(float ns)
+{
+	m_normalShift = ns;
+}
+
+void TopoRender::setBoundaryShift(float bs)
+{
+	m_boundShift = bs;
+}
+
+
 
 }//end namespace GL2