diff --git a/src/Mod/Path/App/VoronoiCellPy.xml b/src/Mod/Path/App/VoronoiCellPy.xml
index 48601d0847..ffc4b57a2b 100644
--- a/src/Mod/Path/App/VoronoiCellPy.xml
+++ b/src/Mod/Path/App/VoronoiCellPy.xml
@@ -16,6 +16,12 @@
             <Author Licence="LGPL" Name="sliptonic" EMail="shopinthewoods@gmail.com" />
             <UserDocu>Cell of a Voronoi diagram</UserDocu>
         </Documentation>
+        <Attribute Name="Index" ReadOnly="true">
+            <Documentation>
+                <UserDocu>Internal id of the element.</UserDocu>
+            </Documentation>
+            <Parameter Name="Index" Type="Int"/>
+        </Attribute>
         <Attribute Name="Color" ReadOnly="false">
             <Documentation>
                 <UserDocu>Assigned color of the receiver.</UserDocu>
diff --git a/src/Mod/Path/App/VoronoiCellPyImp.cpp b/src/Mod/Path/App/VoronoiCellPyImp.cpp
index 9a74a18447..95c8328866 100644
--- a/src/Mod/Path/App/VoronoiCellPyImp.cpp
+++ b/src/Mod/Path/App/VoronoiCellPyImp.cpp
@@ -111,6 +111,14 @@ VoronoiCell* getVoronoiCellFromPy(const VoronoiCellPy *c, PyObject *args = 0) {
   return self;
 }
 
+Py::Int VoronoiCellPy::getIndex(void) const {
+  VoronoiCell *c = getVoronoiCellPtr();
+  if (c->isBound()) {
+    return Py::Int(c->dia->index(c->ptr));
+  }
+  return Py::Int(-1);
+}
+
 Py::Long VoronoiCellPy::getColor(void) const {
   VoronoiCell *c = getVoronoiCellPtr();
   if (c->isBound()) {
diff --git a/src/Mod/Path/App/VoronoiEdgePy.xml b/src/Mod/Path/App/VoronoiEdgePy.xml
index ddefc4586f..daf107b7a2 100644
--- a/src/Mod/Path/App/VoronoiEdgePy.xml
+++ b/src/Mod/Path/App/VoronoiEdgePy.xml
@@ -16,6 +16,12 @@
             <Author Licence="LGPL" Name="sliptonic" EMail="shopinthewoods@gmail.com" />
             <UserDocu>Edge of a Voronoi diagram</UserDocu>
         </Documentation>
+        <Attribute Name="Index" ReadOnly="true">
+            <Documentation>
+                <UserDocu>Internal id of the element.</UserDocu>
+            </Documentation>
+            <Parameter Name="Index" Type="Int"/>
+        </Attribute>
         <Attribute Name="Color" ReadOnly="false">
             <Documentation>
                 <UserDocu>Assigned color of the receiver.</UserDocu>
@@ -46,17 +52,17 @@
             </Documentation>
             <Parameter Name="Prev" Type="Object"/>
         </Attribute>
-        <Attribute Name="RotatedNext" ReadOnly="true">
+        <Attribute Name="RotNext" ReadOnly="true">
             <Documentation>
                 <UserDocu>Rotated CCW next edge whithin voronoi cell</UserDocu>
             </Documentation>
-            <Parameter Name="RotatedNext" Type="Object"/>
+            <Parameter Name="RotNext" Type="Object"/>
         </Attribute>
-        <Attribute Name="RotatedPrev" ReadOnly="true">
+        <Attribute Name="RotPrev" ReadOnly="true">
             <Documentation>
                 <UserDocu>Rotated CCW previous edge whithin voronoi cell</UserDocu>
             </Documentation>
-            <Parameter Name="RotatedPrev" Type="Object"/>
+            <Parameter Name="RotPrev" Type="Object"/>
         </Attribute>
         <Attribute Name="Twin" ReadOnly="true">
             <Documentation>
diff --git a/src/Mod/Path/App/VoronoiEdgePyImp.cpp b/src/Mod/Path/App/VoronoiEdgePyImp.cpp
index 0c6fb6c688..7ca2f85251 100644
--- a/src/Mod/Path/App/VoronoiEdgePyImp.cpp
+++ b/src/Mod/Path/App/VoronoiEdgePyImp.cpp
@@ -130,6 +130,14 @@ VoronoiEdge* getVoronoiEdgeFromPy(const VoronoiEdgePy *e, PyObject *args = 0) {
   return self;
 }
 
+Py::Int VoronoiEdgePy::getIndex(void) const {
+  VoronoiEdge *e = getVoronoiEdgePtr();
+  if (e->isBound()) {
+    return Py::Int(e->dia->index(e->ptr));
+  }
+  return Py::Int(-1);
+}
+
 Py::Long VoronoiEdgePy::getColor(void) const {
   VoronoiEdge *e = getVoronoiEdgePtr();
   if (e->isBound()) {
@@ -183,13 +191,13 @@ Py::Object VoronoiEdgePy::getPrev(void) const
   return Py::asObject(new VoronoiEdgePy(new VoronoiEdge(e->dia, e->ptr->prev())));
 }
 
-Py::Object VoronoiEdgePy::getRotatedNext(void) const
+Py::Object VoronoiEdgePy::getRotNext(void) const
 {
   VoronoiEdge *e = getVoronoiEdgeFromPy(this);
   return Py::asObject(new VoronoiEdgePy(new VoronoiEdge(e->dia, e->ptr->rot_next())));
 }
 
-Py::Object VoronoiEdgePy::getRotatedPrev(void) const
+Py::Object VoronoiEdgePy::getRotPrev(void) const
 {
   VoronoiEdge *e = getVoronoiEdgeFromPy(this);
   return Py::asObject(new VoronoiEdgePy(new VoronoiEdge(e->dia, e->ptr->rot_prev())));
diff --git a/src/Mod/Path/App/VoronoiVertexPy.xml b/src/Mod/Path/App/VoronoiVertexPy.xml
index bffc51c33d..ef5eca069f 100644
--- a/src/Mod/Path/App/VoronoiVertexPy.xml
+++ b/src/Mod/Path/App/VoronoiVertexPy.xml
@@ -16,6 +16,12 @@
             <Author Licence="LGPL" Name="sliptonic" EMail="shopinthewoods@gmail.com" />
             <UserDocu>Vertex of a Voronoi diagram</UserDocu>
         </Documentation>
+        <Attribute Name="Index" ReadOnly="true">
+            <Documentation>
+                <UserDocu>Internal id of the element.</UserDocu>
+            </Documentation>
+            <Parameter Name="Index" Type="Int"/>
+        </Attribute>
         <Attribute Name="Color" ReadOnly="false">
             <Documentation>
                 <UserDocu>Assigned color of the receiver.</UserDocu>
diff --git a/src/Mod/Path/App/VoronoiVertexPyImp.cpp b/src/Mod/Path/App/VoronoiVertexPyImp.cpp
index 0a8b7a92ba..beef937908 100644
--- a/src/Mod/Path/App/VoronoiVertexPyImp.cpp
+++ b/src/Mod/Path/App/VoronoiVertexPyImp.cpp
@@ -113,6 +113,14 @@ VoronoiVertex* getVoronoiVertexFromPy(const VoronoiVertexPy *v, PyObject *args =
 }
 
 
+Py::Int VoronoiVertexPy::getIndex(void) const {
+  VoronoiVertex *v = getVoronoiVertexPtr();
+  if (v->isBound()) {
+    return Py::Int(v->dia->index(v->ptr));
+  }
+  return Py::Int(-1);
+}
+
 Py::Long VoronoiVertexPy::getColor(void) const {
   VoronoiVertex *v = getVoronoiVertexPtr();
   if (v->isBound()) {