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/* Copyright (c) 1988 Regents of the University of California */ |
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/* Copyright (c) 1992 Regents of the University of California */ |
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/* SCCSid "$SunId$ LBL" */ |
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#include <stdio.h> |
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#include <fcntl.h> |
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#include <math.h> |
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#include <errno.h> |
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#include "fvect.h" |
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#include "mat4.h" |
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/* regular transformation */ |
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typedef struct { |
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MAT4 xfm; /* transform matrix */ |
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FLOAT sca; /* scalefactor */ |
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} XF; |
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/* complemetary tranformation */ |
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typedef struct { |
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XF f; /* forward */ |
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XF b; /* backward */ |
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} FULLXF; |
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#define FHUGE (1e10) /* large real number */ |
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#define FTINY (1e-6) /* small real number */ |
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#ifdef M_PI |
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#define PI M_PI |
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#ifndef PI |
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#ifdef M_PI |
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#define PI M_PI |
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#else |
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#define PI 3.14159265358979323846 |
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#define PI 3.14159265358979323846 |
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#endif |
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#endif |
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#ifndef F_OK /* mode bits for access(2) call */ |
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#define R_OK 4 /* readable */ |
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#define W_OK 2 /* writable */ |
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#define X_OK 1 /* executable */ |
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#define F_OK 0 /* exists */ |
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#ifndef F_OK /* mode bits for access(2) call */ |
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#define R_OK 4 /* readable */ |
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#define W_OK 2 /* writable */ |
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#define X_OK 1 /* executable */ |
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#define F_OK 0 /* exists */ |
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#endif |
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/* error codes */ |
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#define WARNING 1 /* non-fatal error */ |
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#define USER 2 /* fatal user-caused error */ |
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#define SYSTEM 3 /* fatal system-related error */ |
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#define INTERNAL 4 /* fatal program-related error */ |
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#define CONSISTENCY 5 /* bad consistency check, abort */ |
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#define COMMAND 6 /* interactive error */ |
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#define WARNING 1 /* non-fatal error */ |
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#define USER 2 /* fatal user-caused error */ |
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#define SYSTEM 3 /* fatal system-related error */ |
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#define INTERNAL 4 /* fatal program-related error */ |
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#define CONSISTENCY 5 /* bad consistency check, abort */ |
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#define COMMAND 6 /* interactive error */ |
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extern char errmsg[]; /* global buffer for error messages */ |
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extern int errno; /* system error number */ |
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/* memory operations */ |
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#ifdef NOSTRUCTASS |
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#define copystruct(d,s) bcopy((char *)(s),(char *)(d),sizeof(*(d))) |
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#else |
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#define copystruct(d,s) (*(d) = *(s)) |
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#endif |
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extern char *sskip(); |
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extern char *getpath(); |
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#ifndef BSD |
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#define bcopy(s,d,n) (void)memcpy(d,s,n) |
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#define bzero(d,n) (void)memset(d,0,n) |
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#define bcmp(b1,b2,n) memcmp(b1,b2,n) |
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#define index strchr |
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#define rindex strrchr |
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#endif |
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extern char *sskip(), *sskip2(); |
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extern char *getpath(), *getenv(); |
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#ifndef malloc |
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extern char *malloc(), *calloc(), *realloc(); |
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#endif |
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extern char *bmalloc(), *savestr(), *savqstr(); |
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#ifdef DCL_ATOF |
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extern double atof(); |
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#endif |
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#ifdef MSDOS |
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#define NIX 1 |
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#endif |
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#ifdef AMIGA |
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#define NIX 1 |
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#endif |
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