[CHANGE] Made the getTexture2() member function const.

src/dataHandler/WDataSet.cpp

@@ -66,7 +66,7 @@ boost::shared_ptr< WDataTexture3D > WDataSet::getTexture()
     throw WDHException( std::string( "This dataset does not provide a texture." ) );
 }
 
-osg::ref_ptr< WDataTexture3D_2 > WDataSet::getTexture2()
+osg::ref_ptr< WDataTexture3D_2 > WDataSet::getTexture2() const
 {
     throw WDHException( std::string( "This dataset does not provide a texture." ) );
 }

src/dataHandler/WDataSet.h

@@ -103,7 +103,7 @@ public:
      *
      * \return The texture.
      */
-    virtual osg::ref_ptr< WDataTexture3D_2 > getTexture2();
+    virtual osg::ref_ptr< WDataTexture3D_2 > getTexture2() const;
 
     /**
      * Gets the name of this prototype.

src/dataHandler/WDataSetSingle.cpp

@@ -98,7 +98,7 @@ boost::shared_ptr< WDataTexture3D > WDataSetSingle::getTexture()
     return m_texture3D;
 }
 
-osg::ref_ptr< WDataTexture3D_2 > WDataSetSingle::getTexture2()
+osg::ref_ptr< WDataTexture3D_2 > WDataSetSingle::getTexture2() const
 {
     return m_texture;
 }

src/dataHandler/WDataSetSingle.h

@@ -114,7 +114,7 @@ public:
      *
      * \return the texture.
      */
-    virtual osg::ref_ptr< WDataTexture3D_2 > getTexture2();
+    virtual osg::ref_ptr< WDataTexture3D_2 > getTexture2() const;
 
     /**
      * Gets the name of this prototype.