Unused variables and new getters for zAxis

GUI/coregui/Models/IntensityDataItem.cpp

@@ -390,6 +390,16 @@ BasicAxisItem* IntensityDataItem::yAxisItem()
     return const_cast<BasicAxisItem*>(static_cast<const IntensityDataItem*>(this)->yAxisItem());
 }
 
+const BasicAxisItem* IntensityDataItem::zAxisItem() const
+{
+    return dynamic_cast<const BasicAxisItem*>(getItem(P_ZAXIS));
+}
+
+BasicAxisItem* IntensityDataItem::zAxisItem()
+{
+    return const_cast<BasicAxisItem*>(static_cast<const IntensityDataItem*>(this)->zAxisItem());
+}
+
 //! Set axes viewport to original data.
 
 void IntensityDataItem::resetView()

GUI/coregui/Models/IntensityDataItem.h

@@ -32,8 +32,6 @@ public:
     static const QString P_TITLE;
     static const QString P_IS_INTERPOLATED;
     static const QString P_GRADIENT;
-    static const QString P_ZAXIS_MIN;
-    static const QString P_ZAXIS_MAX;
     static const QString P_AXES_UNITS;
     static const QString P_XAXIS;
     static const QString P_YAXIS;
@@ -94,6 +92,8 @@ public:
     BasicAxisItem* xAxisItem();
     const BasicAxisItem* yAxisItem() const;
     BasicAxisItem* yAxisItem();
+    const BasicAxisItem* zAxisItem() const;
+    BasicAxisItem* zAxisItem();
 
     void resetView();