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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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* p_data.c - routine for stored patterns. |
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* |
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* 6/4/86 |
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*/ |
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#include "ray.h" |
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#include "copyright.h" |
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#include "ray.h" |
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#include "data.h" |
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#include "func.h" |
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#include "rtotypes.h" |
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/* |
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* A stored pattern can either be brightness or |
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*/ |
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p_bdata(m, r) /* interpolate brightness data */ |
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register OBJREC *m; |
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RAY *r; |
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extern int |
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p_bdata( /* interpolate brightness data */ |
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register OBJREC *m, |
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RAY *r |
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) |
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{ |
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extern double varvalue(), funvalue(), datavalue(); |
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extern int errno; |
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int nv; |
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double bval; |
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double pt[MAXDIM]; |
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DATARRAY *dp; |
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register char **sa; |
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register MFUNC *mf; |
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register int i; |
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|
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setfunc(m, r); |
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|
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sa = m->oargs.sarg; |
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|
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if (m->oargs.nsargs < 4) |
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objerror(m, USER, "bad # arguments"); |
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if (!vardefined(sa[3])) |
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loadfunc(sa[2]); |
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dp = getdata(m->oargs.sarg[1]); |
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i = (1 << dp->nd) - 1; |
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mf = getfunc(m, 2, i<<3, 0); |
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setfunc(m, r); |
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errno = 0; |
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for (nv = 0; nv+3 < m->oargs.nsargs && |
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sa[nv+3][0] != '-'; nv++) { |
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if (nv >= MAXDIM) |
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goto dimerr; |
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pt[nv] = varvalue(sa[nv+3]); |
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for (i = dp->nd; i-- > 0; ) { |
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pt[i] = evalue(mf->ep[i]); |
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if (errno == EDOM || errno == ERANGE) |
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goto computerr; |
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} |
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if (errno) |
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goto computerr; |
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dp = getdata(sa[1]); |
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if (dp->nd != nv) |
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goto dimerr; |
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bval = datavalue(dp, pt); |
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errno = 0; |
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bval = funvalue(sa[0], 1, &bval); |
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if (errno) |
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bval = funvalue(m->oargs.sarg[0], 1, &bval); |
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if (errno == EDOM || errno == ERANGE) |
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goto computerr; |
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scalecolor(r->pcol, bval); |
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return; |
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dimerr: |
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objerror(m, USER, "dimension error"); |
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|
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return(0); |
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computerr: |
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objerror(m, WARNING, "compute error"); |
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return; |
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return(0); |
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} |
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p_cdata(m, r) /* interpolate color data */ |
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register OBJREC *m; |
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RAY *r; |
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extern int |
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p_cdata( /* interpolate color data */ |
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register OBJREC *m, |
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RAY *r |
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) |
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{ |
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extern double varvalue(), funvalue(), datavalue(); |
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extern int errno; |
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int i, nv; |
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double col[3]; |
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COLOR cval; |
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double pt[MAXDIM]; |
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int nv; |
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DATARRAY *dp; |
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register char **sa; |
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register MFUNC *mf; |
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register int i; |
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|
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setfunc(m, r); |
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|
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sa = m->oargs.sarg; |
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|
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if (m->oargs.nsargs < 8) |
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objerror(m, USER, "bad # arguments"); |
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if (!vardefined(sa[7])) |
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loadfunc(sa[6]); |
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for (nv = 0; nv+7 < m->oargs.nsargs && |
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sa[nv+7][0] != '-'; nv++) { |
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if (nv >= MAXDIM) |
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goto dimerr; |
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errno = 0; |
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pt[nv] = varvalue(sa[nv+7]); |
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if (errno) |
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dp = getdata(m->oargs.sarg[3]); |
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i = (1 << (nv = dp->nd)) - 1; |
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mf = getfunc(m, 6, i<<7, 0); |
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setfunc(m, r); |
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errno = 0; |
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for (i = 0; i < nv; i++) { |
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pt[i] = evalue(mf->ep[i]); |
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if (errno == EDOM || errno == ERANGE) |
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goto computerr; |
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} |
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for (i = 0; i < 3; i++) { |
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dp = getdata(sa[i+3]); |
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col[0] = datavalue(dp, pt); |
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for (i = 1; i < 3; i++) { |
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dp = getdata(m->oargs.sarg[i+3]); |
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if (dp->nd != nv) |
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goto dimerr; |
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objerror(m, USER, "dimension error"); |
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col[i] = datavalue(dp, pt); |
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} |
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errno = 0; |
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setcolor(cval, funvalue(sa[0], 3, col), |
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funvalue(sa[1], 3, col), |
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funvalue(sa[2], 3, col)); |
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if (errno) |
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for (i = 0; i < 3; i++) |
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if (fundefined(m->oargs.sarg[i]) < 3) |
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colval(cval,i) = funvalue(m->oargs.sarg[i], 1, col+i); |
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else |
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colval(cval,i) = funvalue(m->oargs.sarg[i], 3, col); |
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if (errno == EDOM || errno == ERANGE) |
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goto computerr; |
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multcolor(r->pcol, cval); |
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return; |
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dimerr: |
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objerror(m, USER, "dimension error"); |
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return(0); |
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computerr: |
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objerror(m, WARNING, "compute error"); |
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return; |
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return(0); |
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} |
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p_pdata(m, r) /* interpolate picture data */ |
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register OBJREC *m; |
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RAY *r; |
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extern int |
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p_pdata( /* interpolate picture data */ |
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register OBJREC *m, |
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RAY *r |
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) |
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{ |
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extern double varvalue(), funvalue(), datavalue(); |
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extern int errno; |
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int i; |
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double col[3]; |
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COLOR cval; |
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double pt[2]; |
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DATARRAY *dp; |
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register char **sa; |
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register MFUNC *mf; |
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register int i; |
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setfunc(m, r); |
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|
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sa = m->oargs.sarg; |
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|
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if (m->oargs.nsargs < 7) |
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objerror(m, USER, "bad # arguments"); |
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if (!vardefined(sa[5])) |
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loadfunc(sa[4]); |
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mf = getfunc(m, 4, 0x3<<5, 0); |
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setfunc(m, r); |
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errno = 0; |
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pt[1] = varvalue(sa[5]); /* y major ordering */ |
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pt[0] = varvalue(sa[6]); |
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if (errno) |
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pt[1] = evalue(mf->ep[0]); /* y major ordering */ |
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pt[0] = evalue(mf->ep[1]); |
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if (errno == EDOM || errno == ERANGE) |
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goto computerr; |
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dp = getpict(sa[3]); |
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dp = getpict(m->oargs.sarg[3]); |
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for (i = 0; i < 3; i++) |
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col[i] = datavalue(dp+i, pt); |
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errno = 0; |
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setcolor(cval, funvalue(sa[0], 3, col), |
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funvalue(sa[1], 3, col), |
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funvalue(sa[2], 3, col)); |
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if (errno) |
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for (i = 0; i < 3; i++) |
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if (fundefined(m->oargs.sarg[i]) < 3) |
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colval(cval,i) = funvalue(m->oargs.sarg[i], 1, col+i); |
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else |
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colval(cval,i) = funvalue(m->oargs.sarg[i], 3, col); |
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if (errno == EDOM || errno == ERANGE) |
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goto computerr; |
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multcolor(r->pcol, cval); |
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return; |
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return(0); |
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computerr: |
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objerror(m, WARNING, "compute error"); |
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return; |
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return(0); |
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} |