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/* Copyright (c) 1991 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* xf.c - routines to convert transform arguments into 4X4 matrix. |
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* 1/28/86 |
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* External symbols declared in rtmath.h |
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*/ |
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#include "standard.h" |
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#include <stdlib.h> |
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#include "rtmath.h" |
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#include "rtio.h" |
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#define d2r(a) ((PI/180.)*(a)) |
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int |
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xf(ret, ac, av) /* get transform specification */ |
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register XF *ret; |
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int ac; |
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char *av[]; |
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xf(XF *ret, int ac, char *av[]) /* get transform specification */ |
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{ |
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MAT4 xfmat, m4; |
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double xfsca, dtmp; |
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int |
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invxf(ret, ac, av) /* invert transform specification */ |
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register XF *ret; |
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int ac; |
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char *av[]; |
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invxf(XF *ret, int ac, char *av[]) /* invert transform specification */ |
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{ |
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MAT4 xfmat, m4; |
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double xfsca, dtmp; |
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int |
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fullxf(fx, ac, av) /* compute both forward and inverse */ |
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FULLXF *fx; |
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int ac; |
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char *av[]; |
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fullxf(FULLXF *fx, int ac, char *av[]) /* compute both forward and inverse */ |
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{ |
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xf(&fx->f, ac, av); |
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return(invxf(&fx->b, ac, av)); |
