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greg |
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/* RCSid $Id: data.h,v 2.9 2024/03/12 16:54:51 greg Exp $ */ |
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/* |
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* Header for data file loading and computation routines. |
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*/ |
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#ifndef _RAD_DATA_H_ |
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#define _RAD_DATA_H_ |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#define MAXDDIM 6 /* maximum data dimensions */ |
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#define DATATYPE float /* single precision to save space */ |
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#define DATATY 'f' /* format for DATATYPE */ |
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#define SPECTY 'c' /* format for SCOLR */ |
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typedef struct datarray { |
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struct datarray *next; /* next array in list */ |
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char *name; /* name of our data */ |
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short type; /* DATATY, SPECTY, RED, GRN or BLU */ |
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short nd; /* number of dimensions */ |
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union { |
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DATATYPE *d; /* float data */ |
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COLR *c; /* RGBE data */ |
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uby8 *s; /* spectral data */ |
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void *p; /* generic pointer */ |
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} arr; /* the data */ |
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struct dadim { /* put this last */ |
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DATATYPE *p; /* point locations */ |
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DATATYPE org, siz; /* coordinate domain */ |
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int ne; /* number of elements */ |
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} dim[MAXDDIM]; /* dimension specifications */ |
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} DATARRAY; /* a data array */ |
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extern DATARRAY *getdata(char *dname); |
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extern DATARRAY *getpict(char *pname); |
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extern DATARRAY *getspec(char *sname); |
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extern void freedata(DATARRAY *dta); |
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extern double datavalue(DATARRAY *dp, double *pt); |
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/* release datavector() pointer with free() not freedata() */ |
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extern DATARRAY *datavector(DATARRAY *dp, double *pt); |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif /* _RAD_DATA_H_ */ |
