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/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
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/* SCCSid "$SunId$ SGI" */ |
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/* RCSid: $Id$ */ |
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/* |
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* sm_qtree.h - header file for routines using spherical quadtrees. |
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* |
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* |
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* < -1: it is an index to a set of objects |
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*/ |
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#include "object.h" |
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typedef struct _FUNC { |
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int (*func)(); |
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int (*func_after)(); |
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int *argptr; |
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}FUNC; |
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#define F_FUNC(f) (f.func) |
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#define F_FUNC2(f) (f.func_after) |
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#define F_ARGS(f) (f.argptr) |
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#define QUADTREE int |
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#define QT_SET_NTH_ELEM(s,n) ((s)[(n)]) |
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#define QT_CLEAR_SET(s) ((s)[0] = 0) |
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#define QT_SET_NEXT_ELEM(p) (*(p)++) |
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#define QT_SET_NEXT_ELEM(p) (*(++p)) |
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#define QT_SET_PTR(s) (&((s)[1])) |
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#define MAXCSET 2*QT_MAXSET |
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#define QT_MAXCSET MAXCSET |
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#ifndef QT_SET_THRESHOLD |
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#define QT_SET_THRESHOLD 64 |
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#define QT_SET_THRESHOLD 32 |
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#endif |
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#ifndef QT_MAX_LEVELS |
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#else |
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#define qtqueryset(qt) (qtsettab[QT_SET_INDEX(qt)]) |
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#endif |
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#if 0 |
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#define qtremovelast(qt) ((*(qtqueryset(qt)))--) |
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#endif |
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#define qtinset(qt,id) inset(qtqueryset(qt),id) |
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#define qtgetset(os,qt) setcopy(os,qtqueryset(qt)) |
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extern QUADTREE qtAdd_tri(); |
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extern QUADTREE qtRoot_visit_tri_edges(); |
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extern QUADTREE qtRoot_trace_ray(); |
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