From 084e16313775c5277917eb89e265ab9430d47cd6 Mon Sep 17 00:00:00 2001
From: Bernd Hahnebach <bernd@bimstatik.org>
Date: Sun, 25 Sep 2016 21:41:14 +0200
Subject: [PATCH] FEM: add GroupID to python mesh API

---
 src/Mod/Fem/App/FemMeshPy.xml    |  6 ++++++
 src/Mod/Fem/App/FemMeshPyImp.cpp | 13 +++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/src/Mod/Fem/App/FemMeshPy.xml b/src/Mod/Fem/App/FemMeshPy.xml
index 89ac7d668..59bde68f2 100755
--- a/src/Mod/Fem/App/FemMeshPy.xml
+++ b/src/Mod/Fem/App/FemMeshPy.xml
@@ -237,6 +237,12 @@
             </Documentation>
             <Parameter Name="GroupCount" Type="Int"/>
         </Attribute>
+        <Attribute Name="Groups" ReadOnly="true">
+            <Documentation>
+                <UserDocu>Tuple of Group IDs.</UserDocu>
+            </Documentation>
+            <Parameter Name="Groups" Type="Tuple"/>
+        </Attribute>
         <Attribute Name="Volume" ReadOnly="true">
             <Documentation>
                 <UserDocu>Volume of the mesh.</UserDocu>
diff --git a/src/Mod/Fem/App/FemMeshPyImp.cpp b/src/Mod/Fem/App/FemMeshPyImp.cpp
index f88d66753..562359fe3 100644
--- a/src/Mod/Fem/App/FemMeshPyImp.cpp
+++ b/src/Mod/Fem/App/FemMeshPyImp.cpp
@@ -1048,6 +1048,19 @@ Py::Int FemMeshPy::getGroupCount(void) const
     return Py::Int(getFemMeshPtr()->getSMesh()->NbGroup());
 }
 
+Py::Tuple FemMeshPy::getGroups(void) const
+{
+    std::list<int> groupIDs = getFemMeshPtr()->getSMesh()->GetGroupIds();
+
+    Py::Tuple tuple(groupIDs.size());
+    int index = 0;
+    for (std::list<int>::iterator it = groupIDs.begin(); it != groupIDs.end(); ++it) {
+        tuple.setItem(index++, Py::Int(*it));
+    }
+
+    return tuple;
+}
+
 Py::Object FemMeshPy::getVolume(void) const
 {
     return Py::Object(new Base::QuantityPy(new Base::Quantity(getFemMeshPtr()->getVolume())));