Annotate code.

Change-Id: If26d21593f36a39de3bc5b81717e5000795c97ae

chart2/source/view/axes/VAxisBase.cxx

@@ -118,6 +118,11 @@ void VAxisBase::setExrtaLinePositionAtOtherAxis( const double& fCrossingAt )
     m_aAxisProperties.m_pfExrtaLinePositionAtOtherAxis = new double(fCrossingAt);
 }
 
+sal_Int32 VAxisBase::getDimensionCount() const
+{
+    return m_nDimension;
+}
+
 bool VAxisBase::isAnythingToDraw()
 {
     if( !m_aAxisProperties.m_xAxisModel.is() )

chart2/source/view/axes/VAxisBase.hxx

@@ -39,7 +39,11 @@ public:
                     ::com::sun::star::util::XNumberFormatsSupplier >& xNumberFormatsSupplier );
     virtual ~VAxisBase();
 
-    sal_Int32 getDimensionCount() { return m_nDimension;}
+    /**
+     * Return the number of dimensions the diagram has.  2 for x and y, and 3
+     * for x, y, and z.
+     */
+    sal_Int32 getDimensionCount() const;
 
     virtual void createMaximumLabels()=0;
     virtual void createLabels()=0;

chart2/source/view/axes/VCartesianCoordinateSystem.cxx

@@ -109,8 +109,10 @@ void VCartesianCoordinateSystem::createVAxisList(
 
     sal_Int32 nDimensionIndex = 0;
 
+    // dimension index -> x, y or z axis.
     for( nDimensionIndex = 0; nDimensionIndex < nDimensionCount; nDimensionIndex++ )
     {
+        // axis index -> primary or secondary axis.
         sal_Int32 nMaxAxisIndex = m_xCooSysModel->getMaximumAxisIndexByDimension(nDimensionIndex);
         for( sal_Int32 nAxisIndex = 0; nAxisIndex <= nMaxAxisIndex; nAxisIndex++ )
         {

chart2/source/view/inc/VCoordinateSystem.hxx

@@ -98,6 +98,9 @@ public:
         ::com::sun::star::chart2::XCoordinateSystem >
         getModel() const { return m_xCooSysModel;}
 
+    /**
+     * Create "view" axis obejcts 'VAxis' from the coordinate system model.
+     */
     virtual void createVAxisList(
             const ::com::sun::star::uno::Reference< ::com::sun::star::util::XNumberFormatsSupplier > & xNumberFormatsSupplier
             , const ::com::sun::star::awt::Size& rFontReferenceSize