spm.h File Reference

#include "common.h"
#include "bn/defines.h"

Include dependency graph for spm.h:

Go to the source code of this file.

Data Structures
struct	bn_spm_map_t

Macros
#define	BN_SPM_MAP_NULL   (bn_spm_map_t *)0
#define	BN_CK_SPM_MAP(_p)   BU_CKMAG(_p, BN_SPM_MAGIC, "bn_spm_map_t")

Functions
bn_spm_map_t *	bn_spm_init (int N, int elsize)
	Return a sphere map structure initialized for N points around the equator. More...
void	bn_spm_free (bn_spm_map_t *mp)
	Free the storage associated with a sphere structure. More...
void	bn_spm_read (register bn_spm_map_t *mapp, register unsigned char *valp, double u, double v)
	Read the value of the pixel at the given normalized (u, v) coordinates. It does NOT check the sanity of the coords. More...
void	bn_spm_write (register bn_spm_map_t *mapp, register unsigned char *valp, double u, double v)
	Write the value of the pixel at the given normalized (u, v) coordinates. It does NOT check the sanity of the coords. More...
char *	bn_spm_get (register bn_spm_map_t *mapp, double u, double v)
	Return a pointer to the storage element indexed by (u, v) coordinates. It does NOT check the sanity of the coords. More...
int	bn_spm_load (bn_spm_map_t *mapp, char *filename)
	Read a saved sphere map from a file ("-" for stdin) into the given map structure. This does not check for conformity of size, etc. More...
int	bn_spm_save (bn_spm_map_t *mapp, char *filename)
	Write a loaded sphere map to the given file ("-" for stdout). Returns -1 on error, else 0. More...
int	bn_spm_pix_load (bn_spm_map_t *mapp, char *filename, int nx, int ny)
	Load an 'nx' by 'ny' pix file and filter it into the given sphere structure. More...
int	bn_spm_pix_save (bn_spm_map_t *mapp, char *filename, int nx, int ny)
	Save a sphere structure as an 'nx' by 'ny' pix file. More...
void	bn_spm_dump (bn_spm_map_t *mp, int verbose)
	Display a sphere structure on stderr. Used for debugging. More...