cs_lagr_extract.cpp File Reference

Extract information from lagrangian particles. More...

#include "base/cs_defs.h"
#include <assert.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "bft/bft_mem.h"
#include "bft/bft_printf.h"
#include "base/cs_base.h"
#include "base/cs_field.h"
#include "base/cs_log.h"
#include "mesh/cs_mesh.h"
#include "base/cs_parall.h"
#include "lagr/cs_lagr_tracking.h"
#include "base/cs_selector.h"
#include "base/cs_timer.h"
#include "base/cs_time_step.h"
#include "lagr/cs_lagr_extract.h"

Include dependency graph for cs_lagr_extract.cpp:

Functions
cs_lnum_t	cs_lagr_get_n_particles (void)
	Get the local number of particles.
void	cs_lagr_get_particle_list (cs_lnum_t n_cells, const cs_lnum_t cell_list[], double density, cs_lnum_t *n_particles, cs_lnum_t *particle_list)
	Extract a list of particles using an optional cell filter and statistical density filter.
int	cs_lagr_get_particle_values (const cs_lagr_particle_set_t *particles, cs_lagr_attribute_t attr, cs_datatype_t datatype, int stride, int component_id, cs_lnum_t n_particles, const cs_lnum_t particle_list[], void *values)
	Extract values for a set of particles.
int	cs_lagr_get_trajectory_values (const cs_lagr_particle_set_t *particles, cs_lagr_attribute_t attr, cs_datatype_t datatype, int stride, int component_id, cs_lnum_t n_particles, const cs_lnum_t particle_list[], void *segment_values)
	Extract trajectory values for a set of particles.

Detailed Description

Extract information from lagrangian particles.

Function Documentation

cs_lagr_get_n_particles()

cs_lnum_t cs_lagr_get_n_particles

(

void

)

Get the local number of particles.

Returns

current number of particles.

cs_lagr_get_particle_list()

void cs_lagr_get_particle_list	(	cs_lnum_t	n_cells,
		const cs_lnum_t	cell_list[],
		double	density,
		cs_lnum_t *	n_particles,
		cs_lnum_t *	particle_list )

Extract a list of particles using an optional cell filter and statistical density filter.

The output array must have been allocated by the caller and be of sufficient size.

Parameters

[in]	n_cells	number of cells in filter
[in]	cell_list	optional list of containing cells filter (1 to n numbering)
[in]	density	if < 1, fraction of particles to select
[out]	n_particles	number of selected particles, or nullptr
[out]	particle_list	particle_list (1 to n numbering), or nullptr

cs_lagr_get_particle_values()

int cs_lagr_get_particle_values	(	const cs_lagr_particle_set_t *	particles,
		cs_lagr_attribute_t	attr,
		cs_datatype_t	datatype,
		int	stride,
		int	component_id,
		cs_lnum_t	n_particles,
		const cs_lnum_t	particle_list[],
		void *	values )

Extract values for a set of particles.

The output array must have been allocated by the caller and be of sufficient size.

Parameters

[in]	particles	associated particle set
[in]	attr	attribute whose values are required
[in]	datatype	associated value type
[in]	stride	number of values per particle
[in]	component_id	if -1 : extract the whole attribute if >0 : id of the component to extract
[in]	n_particles	number of particles in filter
[in]	particle_list	particle_list (1 to n numbering), or nullptr
[out]	values	particle values for given attribute

Returns

0 in case of success, 1 if attribute is not present

cs_lagr_get_trajectory_values()

int cs_lagr_get_trajectory_values	(	const cs_lagr_particle_set_t *	particles,
		cs_lagr_attribute_t	attr,
		cs_datatype_t	datatype,
		int	stride,
		int	component_id,
		cs_lnum_t	n_particles,
		const cs_lnum_t	particle_list[],
		void *	segment_values )

Extract trajectory values for a set of particles.

Trajectories are defined as a mesh of segments, whose start and end points are copied in an interleaved manner in the segment_values array (p1_old, p1_new, p2_old, p2_new, ... pn_old, pn_new).

The output array must have been allocated by the caller and be of sufficient size.

Parameters

[in]	particles	associated particle set
[in]	attr	attribute whose values are required
[in]	datatype	associated value type
[in]	stride	number of values per particle
[in]	component_id	if -1 : extract the whole attribute if >0 : id of the component to extract
[in]	n_particles	number of particles in filter
[in]	particle_list	particle_list (1 to n numbering), or nullptr
[out]	segment_values	particle segment values

Returns

0 in case of success, 1 if attribute is not present