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/* Copyright (c) 1992 Regents of the University of California */ |
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|
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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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/* |
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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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|
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#include "ray.h" |
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#include "copyright.h" |
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|
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#include "ray.h" |
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#include "data.h" |
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|
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#include "func.h" |
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#include "rtotypes.h" |
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|
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/* |
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* A stored pattern can either be brightness or |
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* color data. Brightness data is specified as: |
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* A stored pattern can either be brightness, |
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* color, or spectral data. Brightness data is specified as: |
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* |
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* modifier brightdata name |
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* 4+ func dfname vfname v0 v1 .. xf |
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* 0 |
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* n A1 A2 .. |
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* |
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* A simple spectrum is specified as: |
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* |
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* modifier spectrum name |
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* 0 |
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* 0 |
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* 5+ nmA nmB s1 s2 s3 .. |
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* |
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* A constant spectrum from a data file is given as: |
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* |
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* modifier specfile name |
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* 1 dfname |
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* 0 |
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* 0 |
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* |
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* A spectral data file is given as: |
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* |
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* modifier specdata name |
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* 4+ sfunc dfname vfname v0 .. xf |
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* 0 |
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* n A1 A2 .. |
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* |
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* A spectral image is given as: |
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* |
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* modifier specpict name |
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* 5+ sfunc sfname vfname vx vy xf |
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* 0 |
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* n A1 A2 .. |
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* |
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* Vfname is the name of the file where the variable definitions |
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* can be found. The list of real arguments can be accessed by |
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* definitions in the file. The dfnames are the data file |
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* names. The dimensions of the data files and the number |
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* of variables must match. The funcs take a single argument |
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* for brightdata, and three for colordata and colorpict to produce |
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* interpolated values from the file. The xf is a transformation |
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* to get from the original coordinates to the current coordinates. |
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* of variables must match, except for specdata, which has a "hidden" |
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* last variable for the wavelength. The funcs take a single argument |
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* for brightdata, three for colordata and colorpict, and two for |
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* specdata and specpict to modify interpolated values from the file. |
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* The xf is a transform spec to get from the original coordinates to |
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* the current coordinates. |
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*/ |
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|
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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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int |
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p_bdata( /* interpolate brightness data */ |
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OBJREC *m, |
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RAY *r |
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) |
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{ |
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double bval; |
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double pt[MAXDIM]; |
86 |
> |
double pt[MAXDDIM]; |
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DATARRAY *dp; |
88 |
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register MFUNC *mf; |
89 |
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register int i; |
88 |
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MFUNC *mf; |
89 |
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int i; |
90 |
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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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errno = 0; |
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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) |
100 |
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if ((errno == EDOM) | (errno == ERANGE)) |
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goto computerr; |
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} |
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bval = datavalue(dp, pt); |
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errno = 0; |
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bval = funvalue(m->oargs.sarg[0], 1, &bval); |
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if (errno) |
106 |
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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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scalescolor(r->pcol, bval); |
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return(0); |
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computerr: |
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objerror(m, WARNING, "compute error"); |
112 |
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return; |
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return(0); |
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} |
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|
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|
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p_cdata(m, r) /* interpolate color data */ |
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register OBJREC *m; |
118 |
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RAY *r; |
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int |
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p_cdata( /* interpolate color data */ |
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OBJREC *m, |
119 |
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RAY *r |
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) |
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{ |
122 |
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double col[3]; |
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COLOR cval; |
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double pt[MAXDIM]; |
124 |
> |
double pt[MAXDDIM]; |
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int nv; |
126 |
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DATARRAY *dp; |
127 |
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register MFUNC *mf; |
128 |
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register int i; |
127 |
> |
MFUNC *mf; |
128 |
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int i; |
129 |
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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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errno = 0; |
137 |
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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) |
139 |
> |
if ((errno == EDOM) | (errno == ERANGE)) |
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goto computerr; |
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} |
142 |
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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]); |
144 |
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dp = getdata(m->oargs.sarg[3+i]); |
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if (dp->nd != nv) |
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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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for (i = 0; i < 3; i++) |
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if (fundefined(m->oargs.sarg[i]) < 3) |
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if (i && 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) |
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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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smultcolor(r->pcol, cval); |
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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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|
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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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int |
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p_pdata( /* interpolate picture data */ |
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OBJREC *m, |
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RAY *r |
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) |
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{ |
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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 MFUNC *mf; |
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register int i; |
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MFUNC *mf; |
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int i; |
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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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errno = 0; |
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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) |
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if ((errno == EDOM) | (errno == ERANGE)) |
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goto computerr; |
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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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for (i = 0; i < 3; i++) |
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if (fundefined(m->oargs.sarg[i]) < 3) |
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if (i && 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) |
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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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> |
smultcolor(r->pcol, cval); |
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> |
return(0); |
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|
201 |
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computerr: |
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objerror(m, WARNING, "compute error"); |
203 |
< |
return; |
203 |
> |
return(0); |
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> |
} |
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> |
|
206 |
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|
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int |
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p_spectrum( /* simple constant spectrum */ |
209 |
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OBJREC *m, |
210 |
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RAY *r |
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> |
) |
212 |
> |
{ |
213 |
> |
COLORV *scval; |
214 |
> |
|
215 |
> |
if ((scval = (COLORV *)m->os) == NULL) { |
216 |
> |
COLORV *sinp; |
217 |
> |
double hstep; |
218 |
> |
int i; |
219 |
> |
if (m->oargs.nfargs < 5) |
220 |
> |
objerror(m, USER, "bad # arguments"); |
221 |
> |
sinp = (COLORV *)malloc(sizeof(COLORV)*(m->oargs.nfargs-2)); |
222 |
> |
scval = (COLORV *)malloc(sizeof(COLORV)*NCSAMP); |
223 |
> |
if ((sinp == NULL) | (scval == NULL)) |
224 |
> |
objerror(m, SYSTEM, "out of memory"); |
225 |
> |
for (i = m->oargs.nfargs-2; i--; ) |
226 |
> |
sinp[i] = (COLORV)m->oargs.farg[i+2]; |
227 |
> |
hstep = 0.5 * (m->oargs.farg[1] - m->oargs.farg[0]) / |
228 |
> |
(m->oargs.nfargs-3.0); |
229 |
> |
convertscolorcol(scval, sinp, m->oargs.nfargs-2, |
230 |
> |
m->oargs.farg[0]-hstep, m->oargs.farg[1]+hstep); |
231 |
> |
free(sinp); |
232 |
> |
m->os = (void *)scval; |
233 |
> |
} |
234 |
> |
smultscolor(r->pcol, scval); |
235 |
> |
return(0); |
236 |
> |
} |
237 |
> |
|
238 |
> |
|
239 |
> |
int |
240 |
> |
p_specfile( /* constant spectrum from 1-D data file */ |
241 |
> |
OBJREC *m, |
242 |
> |
RAY *r |
243 |
> |
) |
244 |
> |
{ |
245 |
> |
COLORV *scval; |
246 |
> |
|
247 |
> |
if ((scval = (COLORV *)m->os) == NULL) { |
248 |
> |
DATARRAY *dp; |
249 |
> |
COLORV *sinp; |
250 |
> |
double step; |
251 |
> |
int i; |
252 |
> |
if (m->oargs.nsargs != 1) |
253 |
> |
objerror(m, USER, "bad # arguments"); |
254 |
> |
dp = getdata(m->oargs.sarg[0]); |
255 |
> |
if (dp->nd != 1) |
256 |
> |
objerror(m, USER, "data file must be 1-dimensional"); |
257 |
> |
|
258 |
> |
sinp = (COLORV *)malloc(sizeof(COLORV)*dp->dim[0].ne); |
259 |
> |
scval = (COLORV *)malloc(sizeof(COLORV)*NCSAMP); |
260 |
> |
if ((sinp == NULL) | (scval == NULL)) |
261 |
> |
objerror(m, SYSTEM, "out of memory"); |
262 |
> |
step = dp->dim[0].siz / (dp->dim[0].ne - 1.0); |
263 |
> |
for (i = dp->dim[0].ne; i-- > 0; ) { |
264 |
> |
double wl = dp->dim[0].org + i*step; |
265 |
> |
sinp[i] = (COLORV)datavalue(dp, &wl); |
266 |
> |
} |
267 |
> |
convertscolorcol(scval, sinp, dp->dim[0].ne, |
268 |
> |
dp->dim[0].org-.5*step, |
269 |
> |
dp->dim[0].org+dp->dim[0].siz+.5*step); |
270 |
> |
free(sinp); |
271 |
> |
m->os = (void *)scval; |
272 |
> |
} |
273 |
> |
smultscolor(r->pcol, scval); |
274 |
> |
return(0); |
275 |
> |
} |
276 |
> |
|
277 |
> |
|
278 |
> |
int |
279 |
> |
p_specdata( /* varied spectrum from (N+1)-D file */ |
280 |
> |
OBJREC *m, |
281 |
> |
RAY *r |
282 |
> |
) |
283 |
> |
{ |
284 |
> |
SCOLOR scval; |
285 |
> |
COLORV *scdat; |
286 |
> |
double pt[MAXDDIM]; |
287 |
> |
DATARRAY *dp; |
288 |
> |
MFUNC *mf; |
289 |
> |
double step; |
290 |
> |
int i; |
291 |
> |
|
292 |
> |
if (m->oargs.nsargs < 4) |
293 |
> |
objerror(m, USER, "bad # arguments"); |
294 |
> |
dp = getdata(m->oargs.sarg[1]); |
295 |
> |
if (dp->nd < 2) |
296 |
> |
objerror(m, USER, "need at least 2-dimensional data"); |
297 |
> |
i = (1 << (dp->nd-1)) - 1; |
298 |
> |
mf = getfunc(m, 2, i<<3, 0); |
299 |
> |
setfunc(m, r); |
300 |
> |
errno = 0; |
301 |
> |
for (i = dp->nd-1; i-- > 0; ) { |
302 |
> |
pt[i] = evalue(mf->ep[i]); |
303 |
> |
if ((errno == EDOM) | (errno == ERANGE)) |
304 |
> |
goto computerr; |
305 |
> |
} |
306 |
> |
step = dp->dim[dp->nd-1].siz / (dp->dim[dp->nd-1].ne - 1.0); |
307 |
> |
scdat = (COLORV *)malloc(sizeof(COLORV)*dp->dim[dp->nd-1].ne); |
308 |
> |
if (scdat == NULL) |
309 |
> |
objerror(m, SYSTEM, "out of memory"); |
310 |
> |
for (i = dp->dim[dp->nd-1].ne; i-- > 0; ) { |
311 |
> |
double bval[2]; |
312 |
> |
pt[dp->nd-1] = dp->dim[dp->nd-1].org + i*step; |
313 |
> |
bval[0] = datavalue(dp, pt); |
314 |
> |
bval[1] = pt[dp->nd-1]; |
315 |
> |
errno = 0; |
316 |
> |
scdat[i] = funvalue(m->oargs.sarg[0], 2, bval); |
317 |
> |
if ((errno == EDOM) | (errno == ERANGE)) |
318 |
> |
goto computerr; |
319 |
> |
} |
320 |
> |
convertscolorcol(scval, scdat, dp->dim[dp->nd-1].ne, |
321 |
> |
dp->dim[dp->nd-1].org-.5*step, |
322 |
> |
dp->dim[dp->nd-1].org+dp->dim[dp->nd-1].siz+.5*step); |
323 |
> |
free(scdat); |
324 |
> |
smultscolor(r->pcol, scval); |
325 |
> |
return(0); |
326 |
> |
computerr: |
327 |
> |
objerror(m, WARNING, "compute error"); |
328 |
> |
return(0); |
329 |
> |
} |
330 |
> |
|
331 |
> |
|
332 |
> |
int |
333 |
> |
p_specpict( /* interpolate hyperspectral image data */ |
334 |
> |
OBJREC *m, |
335 |
> |
RAY *r |
336 |
> |
) |
337 |
> |
{ |
338 |
> |
SCOLOR scdat, scval; |
339 |
> |
double pt[3]; |
340 |
> |
DATARRAY *dp; |
341 |
> |
MFUNC *mf; |
342 |
> |
double step; |
343 |
> |
int i; |
344 |
> |
|
345 |
> |
if (m->oargs.nsargs < 5) |
346 |
> |
objerror(m, USER, "bad # arguments"); |
347 |
> |
mf = getfunc(m, 2, 0x3<<3, 0); |
348 |
> |
setfunc(m, r); |
349 |
> |
errno = 0; |
350 |
> |
pt[1] = evalue(mf->ep[0]); /* y major ordering */ |
351 |
> |
pt[0] = evalue(mf->ep[1]); |
352 |
> |
if ((errno == EDOM) | (errno == ERANGE)) |
353 |
> |
goto computerr; |
354 |
> |
dp = getspec(m->oargs.sarg[1]); |
355 |
> |
step = dp->dim[2].siz / (dp->dim[2].ne - 1.0); |
356 |
> |
for (i = dp->dim[2].ne; i-- > 0; ) { |
357 |
> |
double bval[2]; |
358 |
> |
pt[2] = dp->dim[2].org + i*step; |
359 |
> |
bval[0] = datavalue(dp, pt); |
360 |
> |
bval[1] = pt[2]; |
361 |
> |
errno = 0; |
362 |
> |
scdat[i] = funvalue(m->oargs.sarg[0], 2, bval); |
363 |
> |
if ((errno == EDOM) | (errno == ERANGE)) |
364 |
> |
goto computerr; |
365 |
> |
} |
366 |
> |
convertscolorcol(scval, scdat, dp->dim[2].ne, |
367 |
> |
dp->dim[2].org-.5*step, |
368 |
> |
dp->dim[2].org+dp->dim[2].siz+.5*step); |
369 |
> |
smultscolor(r->pcol, scval); |
370 |
> |
return(0); |
371 |
> |
computerr: |
372 |
> |
objerror(m, WARNING, "compute error"); |
373 |
> |
return(0); |
374 |
|
} |