| 8 |
|
|
| 9 |
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/* Assumes included after standard.h */ |
| 10 |
|
|
| 11 |
+ |
#include <values.h> |
| 12 |
+ |
|
| 13 |
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#define ZERO(x) ((x) < FTINY && (x) > -FTINY) |
| 14 |
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#define EQUAL(a,b) ZERO((a) - (b)) |
| 15 |
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|
| 18 |
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#define FALSE 0 |
| 19 |
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#endif |
| 20 |
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|
| 21 |
+ |
typedef long BCOORD; |
| 22 |
+ |
typedef long BDIR; |
| 23 |
+ |
typedef long TINT; |
| 24 |
+ |
#define BITS_BCOORD (BITS(long)>>1) |
| 25 |
+ |
#define SHIFT_MAXBCOORD (BITS_BCOORD-2) |
| 26 |
+ |
#define MAXBCOORD (1L << SHIFT_MAXBCOORD) |
| 27 |
+ |
#define MAXBCOORD2 (MAXBCOORD>>1) |
| 28 |
+ |
#define MAXBDIR MAXBCOORD |
| 29 |
+ |
#define MAXT MAXBCOORD |
| 30 |
+ |
#define HUGET MAXLONG |
| 31 |
+ |
|
| 32 |
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#define M_2_3_PI PI*2/3 |
| 33 |
|
|
| 34 |
+ |
#define INVALID -1 |
| 35 |
+ |
|
| 36 |
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#define GT_INVALID 0 |
| 37 |
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#define GT_VERTEX 1 |
| 38 |
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#define GT_EDGE 2 |
| 49 |
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#define DIST(a,b) (sqrt(((a)[0]-(b)[0])*((a)[0]-(b)[0]) + \ |
| 50 |
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((a)[1]-(b)[1])*((a)[1]-(b)[1]) + \ |
| 51 |
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((a)[2]-(b)[2])*((a)[2]-(b)[2]))) |
| 52 |
+ |
#define DIST_SQ(a,b) (((a)[0]-(b)[0])*((a)[0]-(b)[0]) + \ |
| 53 |
+ |
((a)[1]-(b)[1])*((a)[1]-(b)[1]) + \ |
| 54 |
+ |
((a)[2]-(b)[2])*((a)[2]-(b)[2])) |
| 55 |
|
|
| 56 |
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#define CROSS_VEC2(v1,v2) (((v1)[0]*(v2)[1]) - ((v1)[1]*(v2)[0])) |
| 57 |
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#define DOT_VEC2(v1,v2) ((v1)[0]*(v2)[0] + (v1)[1]*(v2)[1]) |
