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#include <values.h> |
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#define F_TINY 1e-3 |
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#define F_TINY 1e-5 |
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#define FZERO(x) ((x) < F_TINY && (x) > -F_TINY) |
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#define FEQUAL(a,b) FZERO((a) - (b)) |
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typedef long BCOORD; |
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typedef long BDIR; |
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typedef long TINT; |
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#define BITS_BCOORD (BITS(long)>>1) |
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#define SHIFT_MAXBCOORD (BITS_BCOORD-2) |
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#define MAXBCOORD (1L << SHIFT_MAXBCOORD) |
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#define BITS_BCOORD (BITS(long)-2) |
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#define SHIFT_MAXBCOORD (BITS_BCOORD-1) |
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#define MAXBCOORD ((1L << BITS_BCOORD)-1) |
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#define MAXBCOORD2 (MAXBCOORD>>1) |
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#define MAXBDIR MAXBCOORD |
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#define MAXT MAXBCOORD |
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#define HUGET MAXLONG |
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#define MAXBCOORD4 (MAXBCOORD2>>1) |
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#define M_2_3_PI PI*2/3 |
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#define ZERO_VEC3(v) (ZERO(v[0]) && ZERO(v[1]) && ZERO(v[2]) ) |
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#define EQUAL_VEC3(a,b) (EQUAL(a[0],b[0])&&EQUAL(a[1],b[1])&&EQUAL(a[2],b[2])) |
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#define OPP_EQUAL_VEC3(a,b) (EQUAL(a[0],-b[0])&&EQUAL(a[1],-b[1])&&EQUAL(a[2],-b[2])) |
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#define FZERO_VEC3(v) (FZERO(v[0]) && FZERO(v[1]) && FZERO(v[2]) ) |
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#define FEQUAL_VEC3(a,b) (FEQUAL(a[0],b[0])&&FEQUAL(a[1],b[1])&&FEQUAL(a[2],b[2])) |
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#define NEGATE_VEC3(v) ((v)[0] *= -1.0,(v)[1] *= -1.0,(v)[2] *= -1.0) |
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((a)[1]-(b)[1])*((a)[1]-(b)[1]) + \ |
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((a)[2]-(b)[2])*((a)[2]-(b)[2])) |
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#define SIGN(x) ((x<0)?-1:1) |
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#define CROSS_VEC2(v1,v2) (((v1)[0]*(v2)[1]) - ((v1)[1]*(v2)[0])) |
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#define DOT_VEC2(v1,v2) ((v1)[0]*(v2)[0] + (v1)[1]*(v2)[1]) |
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#define EDGE_MIDPOINT_VEC3(a,v1,v2) ((a)[0]=((v1)[0]+(v2)[0])*0.5, \ |
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#define EDGE_MIDPOINT(a,v1,v2) ((a)[0]=((v1)[0]+(v2)[0])*0.5, \ |
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(a)[1]=((v1)[1]+(v2)[1])*0.5,(a)[2] = ((v1)[2]+(v2)[2])*0.5) |
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#define MIN_VEC3(v) ((v)[0]<(v)[1]?((v)[0]<(v)[2]?(v)[0]:v[2]): \ |
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double tri_normal(); |
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/* double spherical_edge_normal(FVECT v0,FVECT v1,FVECT n,char norm) */ |
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double spherical_edge_normal(); |
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double point_on_sphere(); |
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#define point_in_stri_n(n0,n1,n2,p) \ |
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((DOT(n0,p)<=F_TINY)&&(DOT(n1,p)<=F_TINY)&&(DOT(n2,p)<=F_TINY)) |
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((DOT(n0,p)<=FTINY)&&(DOT(n1,p)<=FTINY)&&(DOT(n2,p)<=FTINY)) |
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#define PT_ON_PLANE(p,peq) (DOT(FP_N(peq),p)+FP_D(peq)) |
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