btGeometryOperations.h File Reference

#include "btBoxCollision.h"

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Macros
#define	PLANEDIREPSILON   0.0000001f
#define	PARALELENORMALS   0.000001f
#define	BT_CLAMP(number, minval, maxval)   (number < minval ? minval : (number > maxval ? maxval : number))

Functions
void	bt_edge_plane (const btVector3 &e1, const btVector3 &e2, const btVector3 &normal, btVector4 &plane)
	Calc a plane from a triangle edge an a normal. plane is a vec4f. More...
void	bt_closest_point_on_segment (btVector3 &cp, const btVector3 &v, const btVector3 &e1, const btVector3 &e2)
int	bt_line_plane_collision (const btVector4 &plane, const btVector3 &vDir, const btVector3 &vPoint, btVector3 &pout, btScalar &tparam, btScalar tmin, btScalar tmax)
	line plane collision More...
void	bt_segment_collision (const btVector3 &vA1, const btVector3 &vA2, const btVector3 &vB1, const btVector3 &vB2, btVector3 &vPointA, btVector3 &vPointB)
	Find closest points on segments. More...

Detailed Description

Author

Francisco Leon Najera

Definition in file btGeometryOperations.h.

Macro Definition Documentation

BT_CLAMP

#define BT_CLAMP	(		number,
			minval,
			maxval
	)		(number < minval ? minval : (number > maxval ? maxval : number))

Definition at line 33 of file btGeometryOperations.h.

PARALELENORMALS

#define PARALELENORMALS   0.000001f

Definition at line 31 of file btGeometryOperations.h.

PLANEDIREPSILON

#define PLANEDIREPSILON   0.0000001f

Definition at line 30 of file btGeometryOperations.h.

Function Documentation

bt_closest_point_on_segment()

void bt_closest_point_on_segment ( btVector3 &  cp, const btVector3 &  v, const btVector3 &  e1, const btVector3 &  e2  )

inline

Finds the closest point(cp) to (v) on a segment (e1,e2)

Definition at line 47 of file btGeometryOperations.h.

bt_edge_plane()

void bt_edge_plane ( const btVector3 &  e1, const btVector3 &  e2, const btVector3 &  normal, btVector4 &  plane  )

inline

Calc a plane from a triangle edge an a normal. plane is a vec4f.

Definition at line 36 of file btGeometryOperations.h.

bt_line_plane_collision()

int bt_line_plane_collision ( const btVector4 &  plane, const btVector3 &  vDir, const btVector3 &  vPoint, btVector3 &  pout, btScalar &  tparam, btScalar  tmin, btScalar  tmax  )

inline

line plane collision

Returns

-0 if the ray never intersects -1 if the ray collides in front -2 if the ray collides in back

Definition at line 76 of file btGeometryOperations.h.

bt_segment_collision()

void bt_segment_collision ( const btVector3 &  vA1, const btVector3 &  vA2, const btVector3 &  vB1, const btVector3 &  vB2, btVector3 &  vPointA, btVector3 &  vPointB  )

inline

Find closest points on segments.

Definition at line 111 of file btGeometryOperations.h.