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#include "color.h" |
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#include "setscan.h" |
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#define GLAREBR 10.0 /* glare source is this * avg. lum. */ |
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#define GLAREBR 7.0 /* glare source is this * avg. lum. */ |
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#define SAMPDENS 50 /* default samples per unit in image */ |
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#define TSAMPSTEP 10 /* sample step to compute threshold */ |
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extern int nglarangs; |
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extern double maxtheta; /* maximum glare angle (in radians) */ |
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extern int hsize; /* horizontal size */ |
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extern int hlim; /* horizontal limit of central view */ |
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#define nglardirs (2*nglarangs+1) |
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#define vsize (sampdens-1) |
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#define h_theta(h) (-(double)(h)/(double)sampdens) |
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#define hscale(v) sqrt(1.-(double)((v)*(v)/(sampdens*sampdens))) |
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#define hlim(v) (int)(maxtheta*sampdens*hscale(v)) |
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#define h_theta(h,v) (-(h)/(sampdens*hscale(v))) |
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extern struct illum { |
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float theta; /* glare direction */ |
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} *donelist; /* finished sources */ |
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extern double getviewpix(); |
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extern double pixsize(); |
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extern long npixinvw; /* number of samples in view */ |
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extern long npixmiss; /* number of samples missing */ |