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greg |
1.1 |
/* Copyright (c) 1986 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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#endif
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/*
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* plocate.c - routine to locate 3D vector w.r.t. box.
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*
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* 8/28/85
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*/
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greg |
1.2 |
#include "fvect.h"
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greg |
1.1 |
#include "plocate.h"
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int
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plocate(p, min, max) /* return location of p w.r.t. min & max */
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greg |
1.2 |
register FVECT p;
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FVECT min, max;
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greg |
1.1 |
{
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register int loc = 0;
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if (p[0] < min[0] - EPSILON)
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loc |= XPOS & BELOW;
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else if (p[0] > max[0] + EPSILON)
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loc |= XPOS & ABOVE;
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if (p[1] < min[1] - EPSILON)
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loc |= YPOS & BELOW;
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else if (p[1] > max[1] + EPSILON)
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loc |= YPOS & ABOVE;
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if (p[2] < min[2] - EPSILON)
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loc |= ZPOS & BELOW;
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else if (p[2] > max[2] + EPSILON)
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loc |= ZPOS & ABOVE;
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return(loc);
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}
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