Refs #14121. Added python export.

Framework/PythonInterface/mantid/geometry/src/Exports/PointGroup.cpp

@@ -54,10 +54,20 @@ void export_PointGroup() {
       .value("Trigonal", PointGroup::CrystalSystem::Trigonal)
       .value("Cubic", PointGroup::CrystalSystem::Cubic);
 
+  enum_<PointGroup::LatticeSystem>("LatticeSystem")
+      .value("Triclinic", PointGroup::LatticeSystem::Triclinic)
+      .value("Monoclinic", PointGroup::LatticeSystem::Monoclinic)
+      .value("Orthorhombic", PointGroup::LatticeSystem::Orthorhombic)
+      .value("Tetragonal", PointGroup::LatticeSystem::Tetragonal)
+      .value("Hexagonal", PointGroup::LatticeSystem::Hexagonal)
+      .value("Rhombohedral", PointGroup::LatticeSystem::Rhombohedral)
+      .value("Cubic", PointGroup::LatticeSystem::Cubic);
+
   class_<PointGroup, boost::noncopyable, bases<Group>>("PointGroup", no_init)
       .def("getName", &PointGroup::getName, arg("self"))
       .def("getHMSymbol", &PointGroup::getSymbol, arg("self"))
       .def("getCrystalSystem", &PointGroup::crystalSystem, arg("self"))
+      .def("getLatticeSystem", &PointGroup::latticeSystem, arg("self"))
       .def("isEquivalent", &isEquivalent,
            (arg("self"), arg("hkl1"), arg("hkl2")),
            "Check whether the two HKLs are symmetrically equivalent.")

Framework/PythonInterface/test/python/mantid/geometry/PointGroupTest.py

+# pylint: disable=invalid-name,too-many-public-methods
 import unittest
 from mantid.geometry import PointGroup, PointGroupFactory
 from mantid.kernel import V3D
 
-class PointGroupTest(unittest.TestCase):
 
+class PointGroupTest(unittest.TestCase):
     def test_creation(self):
         self.assertRaises(ValueError, PointGroupFactory.createPointGroup, "none")
 
@@ -43,5 +44,13 @@ class PointGroupTest(unittest.TestCase):
         pg = PointGroupFactory.createPointGroup("m-3m")
         self.assertEquals(pg.getReflectionFamily(hkl1), pg.getReflectionFamily(hkl2))
 
+    def test_getLatticeSystem(self):
+        pg_rhombohedral = PointGroupFactory.createPointGroup("3m r")
+        pg_hexagonal = PointGroupFactory.createPointGroup("3m")
+
+        self.assertEquals(pg_rhombohedral.getLatticeSystem(), PointGroup.LatticeSystem.Rhombohedral)
+        self.assertEquals(pg_hexagonal.getLatticeSystem(), PointGroup.LatticeSystem.Hexagonal)
+
+
 if __name__ == '__main__':
-    unittest.main()
\ No newline at end of file
+    unittest.main()