generate_cubed_sphere.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "generate_cubed_sphere.h"
#include "generate_reg2d.h"
#include "geometry.h"
#include "ppm/ppm_xfuncs.h"
#include "io_utils.h"
#include <netcdf.h>

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Functions
void	yac_generate_cubed_sphere_grid_information (unsigned n, unsigned *num_cells, unsigned *num_vertices, double **x_vertices, double **y_vertices, double **z_vertices, unsigned **cell_to_vertex, unsigned **face_id)
struct yac_basic_grid_data	yac_generate_cubed_sphere_grid (unsigned n)
struct yac_basic_grid *	yac_generate_cubed_sphere_basic_grid (char const *name, size_t n)
static void	decompose_domain_simple (unsigned n, int size, int *cell_owner)
static void	decompose_domain_2d (unsigned n, int size, int *cell_owner)
static void	decompose_domain (unsigned n, int size, int *cell_owner)
void	yac_generate_part_cube_grid_information (unsigned n, unsigned *nbr_vertices, unsigned *nbr_cells, unsigned **num_vertices_per_cell, unsigned **cell_to_vertex, double **x_vertices, double **y_vertices, double **x_cells, double **y_cells, int **global_cell_id, int **cell_core_mask, int **global_corner_id, int **corner_core_mask, int rank, int size)
void	yac_write_cubed_sphere_grid (unsigned n, char const *filename)

Function Documentation

decompose_domain()

static void decompose_domain ( unsigned n, int size, int * cell_owner )

static

Definition at line 556 of file generate_cubed_sphere.c.

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decompose_domain_2d()

static void decompose_domain_2d ( unsigned n, int size, int * cell_owner )

static

Definition at line 519 of file generate_cubed_sphere.c.

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decompose_domain_simple()

static void decompose_domain_simple ( unsigned n, int size, int * cell_owner )

static

Definition at line 511 of file generate_cubed_sphere.c.

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yac_generate_cubed_sphere_basic_grid()

struct yac_basic_grid * yac_generate_cubed_sphere_basic_grid	(	char const *	name,
		size_t	n )

Creates a cubed sphere grid with n subdivisions and given name

Parameters

[in]	name	name of the grid
[in]	n	number of subdivisions of the cubed sphere grid

Returns

yac_basic_grid holding a cubed sphere grid

See also

yac_generate_cubed_sphere_grid_information for details

Definition at line 502 of file generate_cubed_sphere.c.

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yac_generate_cubed_sphere_grid()

struct yac_basic_grid_data yac_generate_cubed_sphere_grid

(

unsigned

n

)

Creates a cubed sphere grid with n subdivisions

Parameters

[in]

n

number of subdivisions of the cubed sphere grid

Returns

yac_basic_grid_data containing data for a cubed sphere grid

See also

yac_generate_cubed_sphere_grid_information for details

Definition at line 456 of file generate_cubed_sphere.c.

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yac_generate_cubed_sphere_grid_information()

void yac_generate_cubed_sphere_grid_information	(	unsigned	n,
		unsigned *	num_cells,
		unsigned *	num_vertices,
		double **	x_vertices,
		double **	y_vertices,
		double **	z_vertices,
		unsigned **	vertices_of_cell,
		unsigned **	face_id )

Creates a cubed sphere grid with n subdivisions

This routine is based on Matlab code provided by Mike Hobson and written by Mike Rezny (both from MetOffice)

Parameters

[in]	n	number of subdivisions of the cubed sphere grid
[out]	num_cells	number of cells in the grid
[out]	num_vertices	number of vertices in the grid
[out]	x_vertices	x coordinate of vertices
[out]	y_vertices	y coordinate of vertices
[out]	z_vertices	z coordinate of vertices
[out]	vertices_of_cell	vertex indices for each cell
[out]	face_id	id for orientation of face w.r.t cube faces (unused)

Remarks

Vertex coordinates are provided in Cartesian coordinates on a unit sphere, with the center of the sphere being the origin of the coordinate system.

Definition at line 19 of file generate_cubed_sphere.c.

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yac_generate_part_cube_grid_information()

void yac_generate_part_cube_grid_information	(	unsigned	n,
		unsigned *	nbr_vertices,
		unsigned *	nbr_cells,
		unsigned **	num_vertices_per_cell,
		unsigned **	cell_to_vertex,
		double **	x_vertices,
		double **	y_vertices,
		double **	x_cells,
		double **	y_cells,
		int **	global_cell_id,
		int **	cell_core_mask,
		int **	global_corner_id,
		int **	corner_core_mask,
		int	rank,
		int	size )

Creates a cubed sphere grid with n subdivisions decomposed for a given number of ranks

Parameters

[in]	n	number of subdivisions of the cubed sphere grid
[out]	nbr_vertices	number of vertices in the grid
[out]	nbr_cells	number of cells in the grid
[out]	num_vertices_per_cell	number of vertices per cell
[out]	cell_to_vertex	vertex indices for each cell
[out]	x_vertices	longitudes of vertices in radians
[out]	y_vertices	latitudes of vertices in radians
[out]	x_cells	longitudes of cell center in radians
[out]	y_cells	latitudes of cell center in radians
[out]	global_cell_id	global cell IDs
[out]	cell_core_mask	cell core mask
[out]	global_corner_id	global corner IDs
[out]	corner_core_mask	corner core mask
[in]	rank	id of this rank
[in]	size	total number of ranks

See also

yac_generate_cubed_sphere_grid_information for details

Definition at line 565 of file generate_cubed_sphere.c.

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yac_write_cubed_sphere_grid()

void yac_write_cubed_sphere_grid	(	unsigned	n,
		char const *	filename )

Creates a cubed sphere grid with n subdivisions and writes it to a netCDF file using an ICON-grid-file like layout.

Parameters

[in]	n	number of subdivisions of the cubed sphere grid
[in]	filename	file name

See also

yac_generate_cubed_sphere_grid_information for details

Definition at line 755 of file generate_cubed_sphere.c.

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