\returns a view of the upper triangular matrix U */

@brief Initialize the stencil buffer with the values of voxel (i, j, k) and its neighbors. @param ijk Index coordinates of stencil center

@{ Return the number of rows in this matrix.

@brief Return the number of elements in this array.

Return the total number of active voxels.

@brief Return the bounding box of this node, i.e., the full index space spanned by this leaf node.

returns inverse of this

Swaps the content of two sparse matrices of the same type. * This is a fast operation that simply swaps the underlying pointers and parameters.

\returns the \c x coefficient */

Find the optional ## from which we stop displaying text.

Allocate memory for this node's buffer if it has not already been allocated.

Return the image of @c in under the map

Direct access to the internal data

Returns the specified attribute of the specified EGLConfig

Return @c true if this buffer's values have not yet been read from disk.

\returns the norm of the quaternion's coefficients * \sa QuaternionBase::squaredNorm(), MatrixBase::norm() */

@brief Iterative normalization, i.e. solving the Eikonal equation

Return the total number of voxels represented by this LeafNode

@return transpose of this

\returns the \c y coefficient */

@{ Return the ceiling of @a x.