added: utl::getDirs

this creates a direction integer like '123'

src/Utility/Test/TestUtilities.C

@@ -192,3 +192,16 @@ TEST(TestUtilities, GetAttribute)
   EXPECT_FLOAT_EQ(val4.y, 3.4);
   EXPECT_FLOAT_EQ(val4.z, 5.6);
 }
+
+TEST(TestUtilities, getDirs)
+{
+  int cmp1 = utl::getDirs(1);
+  int cmp2 = utl::getDirs(2);
+  int cmp3 = utl::getDirs(3);
+  int cmp4 = utl::getDirs(4);
+
+  EXPECT_EQ(cmp1, 1);
+  EXPECT_EQ(cmp2, 12);
+  EXPECT_EQ(cmp3, 123);
+  EXPECT_EQ(cmp4, 1234);
+}

src/Utility/Utilities.C

@@ -445,6 +445,16 @@ std::set<int> utl::getDigits (int num)
 }
 
 
+int utl::getDirs (int ncmp)
+{
+  int res = 0, mul = 1;
+  for (int i = ncmp; i >= 1; --i, mul *= 10)
+    res += i*mul;
+
+  return res;
+}
+
+
 namespace utl
 {
   /*!

src/Utility/Utilities.h

@@ -203,6 +203,9 @@ namespace utl
   //! \brief Splits an integer into its (unique) digits in ascending order.
   std::set<int> getDigits(int value);
 
+  //! \brief Makes a direction integer for given number of components.
+  int getDirs(int ncmp);
+
   //! \brief Returns a const iterator to the entry with value \a iVal.
   IntMap::const_iterator findValue(const IntMap& iMap, int iVal);
   //! \brief Returns the key corresponding to the value \a iVal.