Blender V5.0
Classes | Typedefs | Functions
linear_solver.cc File Reference
Internal libraries » Eigen
#include "linear_solver.h"
#include <Eigen/Sparse>
#include <algorithm>
#include <cassert>
#include <cstdlib>
#include <iostream>
#include <vector>

Go to the source code of this file.

Classes

struct  LinearSolver
struct  LinearSolver::Coeff
struct  LinearSolver::Variable

Typedefs

using EigenSparseMatrix = Eigen::SparseMatrix<double, Eigen::ColMajor>
using EigenSparseLU = Eigen::SparseLU<EigenSparseMatrix>
using EigenVectorX = Eigen::VectorXd
using EigenTriplet = Eigen::Triplet<double>

Functions

LinearSolver * EIG_linear_solver_new (int num_rows, int num_columns, int num_right_hand_sides)
LinearSolver * EIG_linear_least_squares_solver_new (int num_rows, int num_columns, int num_right_hand_sides)
void EIG_linear_solver_delete (LinearSolver *solver)
void EIG_linear_solver_variable_set (LinearSolver *solver, int rhs, int index, double value)
double EIG_linear_solver_variable_get (LinearSolver *solver, int rhs, int index)
void EIG_linear_solver_variable_lock (LinearSolver *solver, int index)
void EIG_linear_solver_variable_unlock (LinearSolver *solver, int index)
static void linear_solver_variables_to_vector (LinearSolver *solver)
static void linear_solver_vector_to_variables (LinearSolver *solver)
static void linear_solver_ensure_matrix_construct (LinearSolver *solver)
void EIG_linear_solver_matrix_add (LinearSolver *solver, int row, int col, double value)
void EIG_linear_solver_right_hand_side_add (LinearSolver *solver, int rhs, int index, double value)
bool EIG_linear_solver_solve (LinearSolver *solver)
void EIG_linear_solver_print_matrix (LinearSolver *solver)

Detailed Description

Sparse linear solver.

Definition in file linear_solver.cc.

Typedef Documentation

◆ EigenSparseLU

using EigenSparseLU = Eigen::SparseLU<EigenSparseMatrix>

Definition at line 24 of file linear_solver.cc.

◆ EigenSparseMatrix

using EigenSparseMatrix = Eigen::SparseMatrix<double, Eigen::ColMajor>

Definition at line 23 of file linear_solver.cc.

◆ EigenTriplet

using EigenTriplet = Eigen::Triplet<double>

Definition at line 26 of file linear_solver.cc.

◆ EigenVectorX

using EigenVectorX = Eigen::VectorXd

Definition at line 25 of file linear_solver.cc.

Function Documentation

◆ EIG_linear_least_squares_solver_new()

LinearSolver * EIG_linear_least_squares_solver_new ( int num_rows,
int num_columns,
int num_right_hand_sides )

Definition at line 107 of file linear_solver.cc.

Referenced by adjust_the_cycle_or_chain(), bmo_smooth_laplacian_vert_exec(), laplacian_system_construct_begin(), laplacianDeformPreview(), laplaciansmoothModifier_do(), and blender::geometry::p_chart_lscm_begin().

◆ EIG_linear_solver_delete()

void EIG_linear_solver_delete ( LinearSolver * solver)

Definition at line 114 of file linear_solver.cc.

Referenced by adjust_the_cycle_or_chain(), delete_laplacian_system(), delete_laplacian_system(), deleteLaplacianSystem(), laplacian_system_delete(), laplaciansmoothModifier_do(), meshdeform_matrix_solve(), blender::geometry::p_abf_matrix_invert(), and blender::geometry::p_chart_lscm_end().

◆ EIG_linear_solver_matrix_add()

void EIG_linear_solver_matrix_add ( LinearSolver * solver,
int row,
int col,
double value )

Definition at line 217 of file linear_solver.cc.

References col, LinearSolver::Coeff::index, LinearSolver::least_squares, linear_solver_ensure_matrix_construct(), LinearSolver::Mtriplets, LinearSolver::state, LinearSolver::STATE_MATRIX_SOLVED, LinearSolver::Coeff::value, and LinearSolver::variable.

Referenced by adjust_the_cycle_or_chain(), bmo_smooth_laplacian_vert_exec(), fill_laplacian_matrix(), fill_laplacian_matrix(), initLaplacianMatrix(), laplacian_system_construct_end(), laplacian_triangle_weights(), laplacianDeformPreview(), laplaciansmoothModifier_do(), meshdeform_matrix_add_cell(), blender::geometry::p_abf_matrix_invert(), and blender::geometry::p_chart_lscm_solve().

◆ EIG_linear_solver_new()

LinearSolver * EIG_linear_solver_new ( int num_rows,
int num_columns,
int num_right_hand_sides )

Definition at line 102 of file linear_solver.cc.

Referenced by laplacian_system_construct_begin(), meshdeform_matrix_solve(), and blender::geometry::p_abf_matrix_invert().

◆ EIG_linear_solver_print_matrix()

void EIG_linear_solver_print_matrix ( LinearSolver * solver)

Definition at line 351 of file linear_solver.cc.

References LinearSolver::b, LinearSolver::M, LinearSolver::MtM, LinearSolver::num_rhs, and rhs.

Referenced by adjust_the_cycle_or_chain().

◆ EIG_linear_solver_right_hand_side_add()

void EIG_linear_solver_right_hand_side_add ( LinearSolver * solver,
int rhs,
int index,
double value )

Definition at line 252 of file linear_solver.cc.

References LinearSolver::b, LinearSolver::least_squares, linear_solver_ensure_matrix_construct(), rhs, and LinearSolver::variable.

Referenced by adjust_the_cycle_or_chain(), bmo_smooth_laplacian_vert_exec(), laplacian_add_right_hand_side(), laplacianDeformPreview(), laplaciansmoothModifier_do(), meshdeform_matrix_add_rhs(), blender::geometry::p_abf_matrix_invert(), and rotateDifferentialCoordinates().

◆ EIG_linear_solver_solve()

bool EIG_linear_solver_solve ( LinearSolver * solver)

Definition at line 267 of file linear_solver.cc.

References LinearSolver::Variable::a, assert, b, LinearSolver::b, i, LinearSolver::least_squares, linear_solver_vector_to_variables(), LinearSolver::Variable::locked, LinearSolver::M, M, LinearSolver::m, LinearSolver::MtM, LinearSolver::Mtriplets, LinearSolver::n, LinearSolver::num_rhs, LinearSolver::num_variables, result, rhs, LinearSolver::sparseLU, LinearSolver::state, LinearSolver::STATE_MATRIX_CONSTRUCT, LinearSolver::STATE_MATRIX_SOLVED, LinearSolver::STATE_VARIABLES_CONSTRUCT, LinearSolver::Variable::value, LinearSolver::variable, and LinearSolver::x.

Referenced by adjust_the_cycle_or_chain(), bmo_smooth_laplacian_vert_exec(), laplacian_system_solve(), laplacianDeformPreview(), laplaciansmoothModifier_do(), meshdeform_matrix_solve(), blender::geometry::p_abf_matrix_invert(), and blender::geometry::p_chart_lscm_solve().

◆ EIG_linear_solver_variable_get()

double EIG_linear_solver_variable_get ( LinearSolver * solver,
int rhs,
int index )

Definition at line 126 of file linear_solver.cc.

References rhs, and LinearSolver::variable.

Referenced by adjust_the_cycle_or_chain(), laplacian_system_get_solution(), laplacianDeformPreview(), meshdeform_matrix_solve(), blender::geometry::p_abf_matrix_invert(), blender::geometry::p_chart_lscm_solve(), rotateDifferentialCoordinates(), validate_solution(), and validate_solution().

◆ EIG_linear_solver_variable_lock()

void EIG_linear_solver_variable_lock ( LinearSolver * solver,
int index )

Definition at line 131 of file linear_solver.cc.

References assert, LinearSolver::state, LinearSolver::STATE_VARIABLES_CONSTRUCT, and LinearSolver::variable.

Referenced by bmo_smooth_laplacian_vert_exec(), laplacian_begin_solve(), and blender::geometry::p_chart_lscm_solve().

◆ EIG_linear_solver_variable_set()

void EIG_linear_solver_variable_set ( LinearSolver * solver,
int rhs,
int index,
double value )

Definition at line 121 of file linear_solver.cc.

References rhs, and LinearSolver::variable.

Referenced by bmo_smooth_laplacian_vert_exec(), laplacian_begin_solve(), laplacianDeformPreview(), laplaciansmoothModifier_do(), and blender::geometry::p_chart_lscm_solve().

◆ EIG_linear_solver_variable_unlock()

void EIG_linear_solver_variable_unlock ( LinearSolver * solver,
int index )

Definition at line 139 of file linear_solver.cc.

References assert, LinearSolver::state, LinearSolver::STATE_VARIABLES_CONSTRUCT, and LinearSolver::variable.

Referenced by bmo_smooth_laplacian_vert_exec().

◆ linear_solver_ensure_matrix_construct()

void linear_solver_ensure_matrix_construct ( LinearSolver * solver)
static

Definition at line 177 of file linear_solver.cc.

References assert, LinearSolver::b, i, LinearSolver::least_squares, linear_solver_variables_to_vector(), LinearSolver::m, LinearSolver::Mtriplets, LinearSolver::n, LinearSolver::num_rhs, LinearSolver::num_rows, LinearSolver::num_variables, LinearSolver::state, LinearSolver::STATE_MATRIX_CONSTRUCT, LinearSolver::STATE_VARIABLES_CONSTRUCT, LinearSolver::variable, and LinearSolver::x.

Referenced by EIG_linear_solver_matrix_add(), and EIG_linear_solver_right_hand_side_add().

◆ linear_solver_variables_to_vector()

void linear_solver_variables_to_vector ( LinearSolver * solver)
static

Definition at line 147 of file linear_solver.cc.

References i, LinearSolver::num_rhs, LinearSolver::num_variables, v, LinearSolver::variable, and LinearSolver::x.

Referenced by linear_solver_ensure_matrix_construct().

◆ linear_solver_vector_to_variables()

void linear_solver_vector_to_variables ( LinearSolver * solver)
static

Definition at line 161 of file linear_solver.cc.

References i, LinearSolver::num_rhs, LinearSolver::num_variables, v, LinearSolver::variable, and LinearSolver::x.

Referenced by EIG_linear_solver_solve().

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