btClipPolygon.h File Reference

#include "LinearMath/btTransform.h"
#include "LinearMath/btGeometryUtil.h"

Go to the source code of this file.

Functions
SIMD_FORCE_INLINE btScalar	bt_distance_point_plane (const btVector4 &plane, const btVector3 &point)
SIMD_FORCE_INLINE void	bt_vec_blend (btVector3 &vr, const btVector3 &va, const btVector3 &vb, btScalar blend_factor)
SIMD_FORCE_INLINE void	bt_plane_clip_polygon_collect (const btVector3 &point0, const btVector3 &point1, btScalar dist0, btScalar dist1, btVector3 *clipped, int &clipped_count)
	This function calcs the distance from a 3D plane.
SIMD_FORCE_INLINE int	bt_plane_clip_polygon (const btVector4 &plane, const btVector3 *polygon_points, int polygon_point_count, btVector3 *clipped)
	Clips a polygon by a plane.
SIMD_FORCE_INLINE int	bt_plane_clip_triangle (const btVector4 &plane, const btVector3 &point0, const btVector3 &point1, const btVector3 &point2, btVector3 *clipped)
	Clips a polygon by a plane.

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Detailed Description

Author:

Francisco Leon Najera

Definition in file btClipPolygon.h.

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Function Documentation

SIMD_FORCE_INLINE btScalar bt_distance_point_plane	(	const btVector4 &	plane,
		const btVector3 &	point
	)

Definition at line 31 of file btClipPolygon.h.

Referenced by bt_line_plane_collision(), bt_plane_clip_polygon(), bt_plane_clip_triangle(), GIM_TRIANGLE_CONTACT::merge_points(), btPrimitiveTriangle::overlap_test_conservative(), and btTriangleShapeEx::overlap_test_conservative().

SIMD_FORCE_INLINE int bt_plane_clip_polygon	(	const btVector4 &	plane,
		const btVector3 *	polygon_points,
		int	polygon_point_count,
		btVector3 *	clipped
	)

Clips a polygon by a plane.

Returns:

The count of the clipped counts

Definition at line 72 of file btClipPolygon.h.

References bt_distance_point_plane(), bt_plane_clip_polygon_collect(), i, and SIMD_EPSILON.

Referenced by btPrimitiveTriangle::clip_triangle().

SIMD_FORCE_INLINE void bt_plane_clip_polygon_collect	(	const btVector3 &	point0,
		const btVector3 &	point1,
		btScalar	dist0,
		btScalar	dist1,
		btVector3 *	clipped,
		int &	clipped_count
	)

This function calcs the distance from a 3D plane.

Definition at line 44 of file btClipPolygon.h.

References bt_vec_blend(), and SIMD_EPSILON.

Referenced by bt_plane_clip_polygon(), and bt_plane_clip_triangle().

SIMD_FORCE_INLINE int bt_plane_clip_triangle	(	const btVector4 &	plane,
		const btVector3 &	point0,
		const btVector3 &	point1,
		const btVector3 &	point2,
		btVector3 *	clipped
	)

Clips a polygon by a plane.

Parameters:

clipped

must be an array of 16 points.

Returns:

The count of the clipped counts

Definition at line 122 of file btClipPolygon.h.

References bt_distance_point_plane(), bt_plane_clip_polygon_collect(), and SIMD_EPSILON.

Referenced by btPrimitiveTriangle::clip_triangle().

SIMD_FORCE_INLINE void bt_vec_blend	(	btVector3 &	vr,
		const btVector3 &	va,
		const btVector3 &	vb,
		btScalar	blend_factor
	)

Vector blending Takes two vectors a, b, blends them together

Definition at line 38 of file btClipPolygon.h.

Referenced by bt_plane_clip_polygon_collect().