Added asserting copy constructors and assignment operators to volumes.

library/PolyVoxCore/include/PolyVoxCore/RawVolume.inl

@@ -28,11 +28,8 @@ namespace PolyVox
 	/// \param regValid Specifies the minimum and maximum valid voxel positions.
 	////////////////////////////////////////////////////////////////////////////////
 	template <typename VoxelType>
-	RawVolume<VoxelType>::RawVolume
-	(
-		const Region& regValid
-	)
-	:BaseVolume<VoxelType>(regValid)
+	RawVolume<VoxelType>::RawVolume(const Region& regValid)
+		:BaseVolume<VoxelType>(regValid)
 	{
 		setBorderValue(VoxelType());
 
@@ -40,6 +37,19 @@ namespace PolyVox
 		initialise(regValid);
 	}
 
+	////////////////////////////////////////////////////////////////////////////////
+	/// This function should never be called. Copying volumes by value would be expensive, and we want to prevent users from doing
+	/// it by accident (such as when passing them as paramenters to functions). That said, there are times when you really do want to
+	/// make a copy of a volume and in this case you should look at the Volumeresampler.
+	///
+	/// \sa VolumeResampler
+	////////////////////////////////////////////////////////////////////////////////
+	template <typename VoxelType>
+	RawVolume<VoxelType>::RawVolume(const RawVolume<VoxelType>& rhs)
+	{
+		assert(false); // See function comment above.
+	}
+
 	////////////////////////////////////////////////////////////////////////////////
 	/// Destroys the volume
 	////////////////////////////////////////////////////////////////////////////////
@@ -50,6 +60,19 @@ namespace PolyVox
 		m_pData = 0;
 	}
 
+	////////////////////////////////////////////////////////////////////////////////
+	/// This function should never be called. Copying volumes by value would be expensive, and we want to prevent users from doing
+	/// it by accident (such as when passing them as paramenters to functions). That said, there are times when you really do want to
+	/// make a copy of a volume and in this case you should look at the Volumeresampler.
+	///
+	/// \sa VolumeResampler
+	////////////////////////////////////////////////////////////////////////////////
+	template <typename VoxelType>
+	RawVolume<VoxelType>& RawVolume<VoxelType>::operator=(const RawVolume<VoxelType>& rhs)
+	{
+		assert(false); // See function comment above.
+	}
+
 	////////////////////////////////////////////////////////////////////////////////
 	/// The border value is returned whenever an attempt is made to read a voxel which
 	/// is outside the extents of the volume.