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/* 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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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* sphere.c - routines for creating octrees for spheres. |
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* |
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{ |
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FVECT v1; |
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double d1, d2; |
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register double *fa; |
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register RREAL *fa; |
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register int i; |
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#define cent fa |
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#define rad fa[3] |
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/* get arguments */ |
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if (o->oargs.nfargs != 4) |
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objerror(o, USER, "bad # arguments"); |
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fa = o->oargs.farg; |
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if (o->oargs.nfargs != 4 || rad <= FTINY) |
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objerror(o, USER, "bad arguments"); |
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if (rad < -FTINY) { |
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objerror(o, WARNING, "negative radius"); |
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o->otype = o->otype == OBJ_SPHERE ? |
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OBJ_BUBBLE : OBJ_SPHERE; |
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rad = -rad; |
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} else if (rad <= FTINY) |
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objerror(o, USER, "zero radius"); |
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d1 = ROOT3/2.0 * cu->cusize; /* bounding radius for cube */ |
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