#include "MEM_guardedalloc.h"
#include "BLI_math_geom.h"
#include "BLI_math_vector.h"
#include "eigen_capi.h"
#include "bmesh.hh"
#include "intern/bmesh_operators_private.hh"

Classes
struct	BLaplacianSystem

Macros
#define	SMOOTH_LAPLACIAN_MAX_EDGE_PERCENTAGE 1.8f

#define	SMOOTH_LAPLACIAN_MIN_EDGE_PERCENTAGE 0.15f

Typedefs
typedef BLaplacianSystem	LaplacianSystem

Functions
static bool	vert_is_boundary (BMVert *v)

static LaplacianSystem *	init_laplacian_system (int a_numEdges, int a_numLoops, int a_numVerts)

static void	init_laplacian_matrix (LaplacianSystem *sys)

static void	delete_laplacian_system (LaplacianSystem *sys)

static void	delete_void_pointer (void *data)

static void	fill_laplacian_matrix (LaplacianSystem *sys)

static void	memset_laplacian_system (LaplacianSystem *sys, int val)

static void	validate_solution (LaplacianSystem *sys, int usex, int usey, int usez, int preserve_volume)

static void	volume_preservation (BMOperator *op, float vini, float vend, int usex, int usey, int usez)

void	bmo_smooth_laplacian_vert_exec (BMesh bm, BMOperator op)

Detailed Description

Advanced smoothing.

Definition in file bmo_smooth_laplacian.cc.

Macro Definition Documentation

◆ SMOOTH_LAPLACIAN_MAX_EDGE_PERCENTAGE

#define SMOOTH_LAPLACIAN_MAX_EDGE_PERCENTAGE 1.8f

Definition at line 24 of file bmo_smooth_laplacian.cc.

Referenced by validate_solution().

◆ SMOOTH_LAPLACIAN_MIN_EDGE_PERCENTAGE

#define SMOOTH_LAPLACIAN_MIN_EDGE_PERCENTAGE 0.15f

Definition at line 25 of file bmo_smooth_laplacian.cc.

Referenced by validate_solution().

Typedef Documentation

◆ LaplacianSystem

typedef BLaplacianSystem LaplacianSystem

Definition at line 46 of file bmo_smooth_laplacian.cc.

Function Documentation

◆ bmo_smooth_laplacian_vert_exec()

void bmo_smooth_laplacian_vert_exec	(	BMesh *	bm,
		BMOperator *	op )

Definition at line 422 of file bmo_smooth_laplacian.cc.

References bm, BM_elem_index_get, BM_mesh_elem_index_ensure(), BM_VERT, BMO_ITER, BMO_slot_bool_get(), BMO_slot_float_get(), BMVert::co, LaplacianSystem::context, delete_laplacian_system(), EIG_linear_least_squares_solver_new(), EIG_linear_solver_matrix_add(), EIG_linear_solver_right_hand_side_add(), EIG_linear_solver_solve(), EIG_linear_solver_variable_lock(), EIG_linear_solver_variable_set(), EIG_linear_solver_variable_unlock(), fill_laplacian_matrix(), init_laplacian_matrix(), init_laplacian_system(), memset_laplacian_system(), LaplacianSystem::min_area, LaplacianSystem::ring_areas, BMOperator::slots_in, BMesh::totedge, BMesh::totface, BMesh::totloop, BMesh::totvert, v, validate_solution(), vert_is_boundary(), LaplacianSystem::vlengths, LaplacianSystem::vweights, w(), and LaplacianSystem::zerola.

◆ delete_laplacian_system()

static void delete_laplacian_system ( LaplacianSystem * sys )

static

Definition at line 67 of file bmo_smooth_laplacian.cc.

References LaplacianSystem::context, delete_void_pointer(), EIG_linear_solver_delete(), LaplacianSystem::eweights, LaplacianSystem::fweights, MEM_freeN(), LaplacianSystem::ring_areas, LaplacianSystem::vlengths, LaplacianSystem::vweights, and LaplacianSystem::zerola.

Referenced by bmo_smooth_laplacian_vert_exec(), and init_laplacian_system().

◆ delete_void_pointer()

static void delete_void_pointer ( void * data )

static

Definition at line 60 of file bmo_smooth_laplacian.cc.

References MEM_freeN().

Referenced by delete_laplacian_system().

◆ fill_laplacian_matrix()

static void fill_laplacian_matrix ( LaplacianSystem * sys )

static

◆ init_laplacian_matrix()

static void init_laplacian_matrix ( LaplacianSystem * sys )

static

Compute weight between vertex v_i and all your neighbors weight between v_i and v_neighbor

Wij = cot(alpha) + cot(beta) / (4.0 * total area of all faces  * sum all weight)

       v_i *
         / | \
        /  |  \
 v_beta*   |   * v_alpha
        \  |  /
         \ | /
           * v_neighbor

Definition at line 163 of file bmo_smooth_laplacian.cc.

References area_tri_v3(), BM_edge_is_boundary(), BM_EDGES_OF_MESH, BM_elem_flag_test, BM_elem_index_get, BM_ELEM_SELECT, BM_FACE_FIRST_LOOP, BM_FACES_OF_MESH, BM_ITER_MESH, BM_ITER_MESH_INDEX, BMVert::co, cotangent_tri_weight_v3(), e, LaplacianSystem::eweights, LaplacianSystem::fweights, BMFace::len, len_v3v3(), LaplacianSystem::min_area, BMLoop::next, BMLoop::prev, LaplacianSystem::ring_areas, BMLoop::v, v2, LaplacianSystem::vlengths, LaplacianSystem::vweights, and LaplacianSystem::zerola.