tri_box.cpp File Reference

#include <math.h>
#include "../ugmath.h"

Classes
struct	ug::TRI

Namespaces
	ug
	the ug namespace

Macros
#define	CROSS(A, B, C)
#define	EPS   10e-5
#define	FALSE   0
#define	INSIDE   0
#define	LERP(A, B, C)   ((B)+(A)*((C)-(B)))
#define	MAX3(a, b, c)   ((((a)>(b))&&((a)>(c))) ? (a) : (((b)>(c)) ? (b) : (c)))
#define	MIN3(a, b, c)   ((((a)<(b))&&((a)<(c))) ? (a) : (((b)<(c)) ? (b) : (c)))
#define	OUTSIDE   1
#define	SIGN3(A)
#define	SUB(A, B, C)
#define	TRUE   1

Functions
static int	ug::Bevel2d (const vector3 &p)
static int	ug::Bevel3d (const vector3 &p)
static int	ug::CheckLine (const vector3 &p1, const vector3 &p2, int outcode_diff)
static int	ug::CheckPoint (const vector3 &p1, const vector3 &p2, number alpha, long mask)
static int	ug::FacePlane (const vector3 &p)
static int	ug::PointTriangleIntersection (const vector3 &p, const TRI &t)
UG_API bool	ug::TriangleBoxIntersection (const MathVector< 3 > &p0, const MathVector< 3 > &p1, const MathVector< 3 > &p2, const MathVector< 3 > &boxMin, const MathVector< 3 > &boxMax)
	checks whether a triangle and an axis-aligned box intersect. More...
static int	ug::TriCubeIntersection (const TRI &t)

Macro Definition Documentation

CROSS

#define CROSS	(		A,
			B,
			C
	)

Value:

  { \
  (C).x() =  (A).y() * (B).z() - (A).z() * (B).y(); \
  (C).y() = -(A).x() * (B).z() + (A).z() * (B).x(); \
  (C).z() =  (A).x() * (B).y() - (A).y() * (B).x(); \
   }

EPS

#define EPS   10e-5

FALSE

#define FALSE   0

INSIDE

#define INSIDE   0

LERP

#define LERP	(		A,
			B,
			C
	)		((B)+(A)*((C)-(B)))

MAX3

#define MAX3	(		a,
			b,
			c
	)		((((a)>(b))&&((a)>(c))) ? (a) : (((b)>(c)) ? (b) : (c)))

MIN3

#define MIN3	(		a,
			b,
			c
	)		((((a)<(b))&&((a)<(c))) ? (a) : (((b)<(c)) ? (b) : (c)))

OUTSIDE

#define OUTSIDE   1

SIGN3

#define SIGN3

(

A

)

Value:

    (((A).x() < EPS ? 4 : 0) | ((A).x() > -EPS ? 32 : 0) | \
     ((A).y() < EPS ? 2 : 0) | ((A).y() > -EPS ? 16 : 0) | \
     ((A).z() < EPS ? 1 : 0) | ((A).z() > -EPS ? 8 : 0))

SUB

#define SUB	(		A,
			B,
			C
	)

Value:

  { \
  (C).x() =  (A).x() - (B).x(); \
  (C).y() =  (A).y() - (B).y(); \
  (C).z() =  (A).z() - (B).z(); \
   }

TRUE

#define TRUE   1