| 1 |
/* RCSid $Id: data.h,v 2.8 2023/12/13 23:26:16 greg Exp $ */ |
| 2 |
/* |
| 3 |
* Header for data file loading and computation routines. |
| 4 |
*/ |
| 5 |
#ifndef _RAD_DATA_H_ |
| 6 |
#define _RAD_DATA_H_ |
| 7 |
#ifdef __cplusplus |
| 8 |
extern "C" { |
| 9 |
#endif |
| 10 |
|
| 11 |
#define MAXDDIM 6 /* maximum data dimensions */ |
| 12 |
|
| 13 |
#define DATATYPE float /* single precision to save space */ |
| 14 |
#define DATATY 'f' /* format for DATATYPE */ |
| 15 |
#define SPECTY 'c' /* format for SCOLR */ |
| 16 |
|
| 17 |
typedef struct datarray { |
| 18 |
struct datarray *next; /* next array in list */ |
| 19 |
char *name; /* name of our data */ |
| 20 |
short type; /* DATATY, SPECTY, RED, GRN or BLU */ |
| 21 |
short nd; /* number of dimensions */ |
| 22 |
union { |
| 23 |
DATATYPE *d; /* float data */ |
| 24 |
COLR *c; /* RGBE data */ |
| 25 |
uby8 *s; /* spectral data */ |
| 26 |
void *p; /* generic pointer */ |
| 27 |
} arr; /* the data */ |
| 28 |
struct dadim { /* put this last */ |
| 29 |
DATATYPE *p; /* point locations */ |
| 30 |
DATATYPE org, siz; /* coordinate domain */ |
| 31 |
int ne; /* number of elements */ |
| 32 |
} dim[MAXDDIM]; /* dimension specifications */ |
| 33 |
} DATARRAY; /* a data array */ |
| 34 |
|
| 35 |
extern DATARRAY *getdata(char *dname); |
| 36 |
extern DATARRAY *getpict(char *pname); |
| 37 |
extern DATARRAY *getspec(char *sname); |
| 38 |
extern void freedata(DATARRAY *dta); |
| 39 |
extern double datavalue(DATARRAY *dp, double *pt); |
| 40 |
/* release datavector() pointer with free() not freedata() */ |
| 41 |
extern DATARRAY *datavector(DATARRAY *dp, double *pt); |
| 42 |
|
| 43 |
#ifdef __cplusplus |
| 44 |
} |
| 45 |
#endif |
| 46 |
#endif /* _RAD_DATA_H_ */ |
| 47 |
|
