Enhances other geometrical ct builders by allowing the user to define the first level of index partitioning by a given vector.

#include <TBSPCTBuilder.hh>

Inheritance diagram for TGeomPartCTBuilder:

Public Member Functions
	TGeomPartCTBuilder (const std::vector< idx_t > &first_lvl_part, const TGeomCTBuilder *base_builder, const adjust_depth_mode_t adjust_depth)

virtual	~TGeomPartCTBuilder ()
	dtor

virtual std::unique_ptr< TGeomCluster >	divide (const TNodeSet &dofs, const uint lvl, const TBBox &bbox, const TOptClusterSize &csize, const idx_t index_ofs, data_t &data) const
	use user defined partition for first level and partitioning strategy for rest

Public Member Functions inherited from TGeomCTBuilder
	TGeomCTBuilder (const uint n_min=CFG::Cluster::nmin, const uint min_leaf_lvl=0)
	construct cluster tree builder

virtual std::unique_ptr< TClusterTree >	build (const TCoordinate *coord, const idx_t idx_ofs=0) const

void	set_max_lvl (const uint l)
	set maximal leaf level

void	adjust_bb (const bool b)
	set flag for adjusting bounding box

void	sort_wrt_size (const bool b)
	set flag for sorting son cluster wrt. size

Additional Inherited Members
Protected Member Functions inherited from TGeomCTBuilder
virtual std::unique_ptr< TGeomCluster >	build_leaf (const TNodeSet &dofs, const uint lvl, const idx_t index_ofs, const TBBox &bbox, data_t &data) const
	create a leaf in a clustertree containing indices in dofs

virtual TBBox	compute_bb (const TNodeSet &dofs, const data_t &data) const
	compute bounding box of index set defined by dofs

virtual void	update_bb (const TNodeSet &dofs, TBBox &bbox, const data_t &data) const
	update bounding box of index set defined by dofs

virtual void	check_bb (TBBox &bbox, const data_t &data) const
	check and update bbox in case of degenerate axis, e.g. very small length

Protected Attributes inherited from TGeomCTBuilder
uint	_n_min
	minimal size of a cluster, i.e. not smaller than this

uint	_min_leaf_lvl
	minimal level on which leaves may occur

uint	_max_lvl
	maximal level of tree (0: automatic choice)

bool	_adjust_bb
	flag for adjusting bounding boxes of nodes

bool	_sort_wrt_size
	flag for sorting sub clusters w.r.t. size

Constructor & Destructor Documentation

◆ TGeomPartCTBuilder()

construct cluster tree with first partition defined by first_lvl_part and base ct builder base_builder